lkml.org 
[lkml]   [2018]   [May]   [29]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH 2/7] scsi: ufs: Add config descriptor documentation
Date
This change adds the documentation for the new sysfs files plumbed out
for the UFS configuration descriptor.

Signed-off-by: Evan Green <evgreen@chromium.org>
---
Documentation/ABI/testing/sysfs-driver-ufs | 174 +++++++++++++++++++++++++++++
1 file changed, 174 insertions(+)

diff --git a/Documentation/ABI/testing/sysfs-driver-ufs b/Documentation/ABI/testing/sysfs-driver-ufs
index 016724ec26d5..a1336194628f 100644
--- a/Documentation/ABI/testing/sysfs-driver-ufs
+++ b/Documentation/ABI/testing/sysfs-driver-ufs
@@ -237,6 +237,180 @@ Description: This file shows the command maximum timeout for a change
The file is read only.


+What: /sys/bus/platform/drivers/ufshcd/*/config_descriptor/cfg_boot_enable
+Date: May 2018
+Contact: Evan Green <evgreen@chromium.org>
+Description: This file shows whether or not the UFS boot feature is enabled.
+ This is one of the UFS configuration descriptor parameters.
+ More information about the descriptor can be found in the UFS
+ 2.1 specification.
+ The file is read only.
+
+What: /sys/bus/platform/drivers/ufshcd/*/config_descriptor/cfg_descriptor_access_enable
+Date: May 2018
+Contact: Evan Green <evgreen@chromium.org>
+Description: This file shows whether or not access will be permitted to the
+ Device Descriptor after the partial initialization phase of the
+ boot sequence. This is one of the UFS configuration descriptor
+ parameters. More information about the descriptor can be found
+ in the UFS 2.1 specification.
+ The file is read only.
+
+What: /sys/bus/platform/drivers/ufshcd/*/config_descriptor/cfg_high_priority_lun
+Date: May 2018
+Contact: Evan Green <evgreen@chromium.org>
+Description: This file shows the identifier of the high priority logical
+ unit. This is one of the UFS configuration descriptor
+ parameters. More information about the descriptor can be found
+ in the UFS 2.1 specification.
+ The file is read only.
+
+What: /sys/bus/platform/drivers/ufshcd/*/config_descriptor/cfg_init_active_icc_level
+Date: May 2018
+Contact: Evan Green <evgreen@chromium.org>
+Description: This file shows the ICC level in active mode after device
+ initialization or hardware reset. This is one of the UFS
+ configuration descriptor parameters. More information about the
+ descriptor can be found in the UFS 2.1 specification.
+ The file is read only.
+
+What: /sys/bus/platform/drivers/ufshcd/*/config_descriptor/cfg_initial_power_mode
+Date: May 2018
+Contact: Evan Green <evgreen@chromium.org>
+Description: This file shows the power mode after device initialization or
+ hardware reset. This is one of the UFS configuration descriptor
+ parameters. More information about the descriptor can be found
+ in the UFS 2.1 specification.
+ The file is read only.
+
+What: /sys/bus/platform/drivers/ufshcd/*/config_descriptor/cfg_number_of_luns
+Date: May 2018
+Contact: Evan Green <evgreen@chromium.org>
+Description: This file shows the number of logical units that the device will
+ support. This is one of the UFS configuration descriptor
+ parameters. More information about the descriptor can be found
+ in the UFS 2.1 specification.
+ The file is read only.
+
+What: /sys/bus/platform/drivers/ufshcd/*/config_descriptor/cfg_periodic_rtc_update
+Date: May 2018
+Contact: Evan Green <evgreen@chromium.org>
+Description: This file shows the frequency and method of real time clock
+ updates. This is one of the UFS configuration descriptor
+ parameters. More information about the descriptor can be found
+ in the UFS 2.1 specification.
+ The file is read only.
+
+What: /sys/bus/platform/drivers/ufshcd/*/config_descriptor/cfg_secure_removal_type
+Date: May 2018
+Contact: Evan Green <evgreen@chromium.org>
+Description: This file shows the secure removal type of the UFS device. This
+ is one of the UFS configuration descriptor parameters. More
+ information about the descriptor can be found in the UFS 2.1
+ specification.
+ The file is read only.
+
+What: /sys/bus/platform/drivers/ufshcd/*/config_descriptor/cfg_unit
+Date: May 2018
+Contact: Evan Green <evgreen@chromium.org>
+Description: This file identifies the logical unit number whose parameters
+ are being displayed by the unit_* files in this directory. This
+ file can be set to different numerical values in order to
+ interact with configuration unit descriptors from additional
+ LUNs.
+
+What: /sys/bus/platform/drivers/ufshcd/*/config_descriptor/unit_allocation_units
+Date: May 2018
+Contact: Evan Green <evgreen@chromium.org>
+Description: This file shows the number of allocation units assigned to the
+ logical unit. The cfg_unit file controls which logical unit is
+ being displayed. This is one of the UFS configuration unit
+ descriptor parameters. More information about the descriptor
+ can be found in the UFS 2.1 specification.
+ The file is read only.
+
+What: /sys/bus/platform/drivers/ufshcd/*/config_descriptor/unit_boot_lun_id
+Date: May 2018
+Contact: Evan Green <evgreen@chromium.org>
+Description: This file shows the boot LUN ID for this logical unit,
+ indicating whether it is Boot A, Boot B, or not special. The
+ cfg_unit file controls which logical unit is being displayed.
+ This is one of the UFS configuration unit descriptor parameters.
+ More information about the descriptor can be found in the UFS
+ 2.1 specification.
+ The file is read only.
+
+What: /sys/bus/platform/drivers/ufshcd/*/config_descriptor/unit_context_capabilities
+Date: May 2018
+Contact: Evan Green <evgreen@chromium.org>
+Description: This file shows the context capabilities for the logical unit.
+ The cfg_unit file controls which logical unit is
+ being displayed. This is one of the UFS configuration unit
+ descriptor parameters. More information about the descriptor
+ can be found in the UFS 2.1 specification.
+ The file is read only.
+
+What: /sys/bus/platform/drivers/ufshcd/*/config_descriptor/unit_data_reliability
+Date: May 2018
+Contact: Evan Green <evgreen@chromium.org>
+Description: This file shows the data reliability for the logical unit.
+ The cfg_unit file controls which logical unit is
+ being displayed. This is one of the UFS configuration unit
+ descriptor parameters. More information about the descriptor
+ can be found in the UFS 2.1 specification.
+ The file is read only.
+
+What: /sys/bus/platform/drivers/ufshcd/*/config_descriptor/unit_logical_block_size
+Date: May 2018
+Contact: Evan Green <evgreen@chromium.org>
+Description: This file shows the logical block size for the logical unit as
+ a power of two. The cfg_unit file controls which logical unit is
+ being displayed. This is one of the UFS configuration unit
+ descriptor parameters. More information about the descriptor
+ can be found in the UFS 2.1 specification.
+ The file is read only.
+
+What: /sys/bus/platform/drivers/ufshcd/*/config_descriptor/unit_lu_enable
+Date: May 2018
+Contact: Evan Green <evgreen@chromium.org>
+Description: This file shows whether or not the logical unit is enabled.
+ The cfg_unit file controls which logical unit is
+ being displayed. This is one of the UFS configuration unit
+ descriptor parameters. More information about the descriptor
+ can be found in the UFS 2.1 specification.
+ The file is read only.
+
+What: /sys/bus/platform/drivers/ufshcd/*/config_descriptor/unit_lu_write_protect
+Date: May 2018
+Contact: Evan Green <evgreen@chromium.org>
+Description: This file shows the write protect status for the logical unit.
+ The cfg_unit file controls which logical unit is
+ being displayed. This is one of the UFS configuration unit
+ descriptor parameters. More information about the descriptor
+ can be found in the UFS 2.1 specification.
+ The file is read only.
+
+What: /sys/bus/platform/drivers/ufshcd/*/config_descriptor/unit_memory_type
+Date: May 2018
+Contact: Evan Green <evgreen@chromium.org>
+Description: This file shows the memory type for the logical unit.
+ The cfg_unit file controls which logical unit is
+ being displayed. This is one of the UFS configuration unit
+ descriptor parameters. More information about the descriptor
+ can be found in the UFS 2.1 specification.
+ The file is read only.
+
+What: /sys/bus/platform/drivers/ufshcd/*/config_descriptor/unit_provisioning_type
+Date: May 2018
+Contact: Evan Green <evgreen@chromium.org>
+Description: This file shows the provisioning type information for the
+ logical unit. The cfg_unit file controls which logical unit is
+ being displayed. This is one of the UFS configuration unit
+ descriptor parameters. More information about the descriptor
+ can be found in the UFS 2.1 specification.
+ The file is read only.
+
+
What: /sys/bus/platform/drivers/ufshcd/*/interconnect_descriptor/unipro_version
Date: February 2018
Contact: Stanislav Nijnikov <stanislav.nijnikov@wdc.com>
--
2.13.5
\
 
 \ /
  Last update: 2018-05-29 20:19    [W:0.161 / U:2.300 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site