scsi: ufs: sysfs: geometry descriptor
This patch introduces a sysfs group entry for the UFS geometry descriptor parameters. The group adds "geometry_descriptor" folder under the UFS driver sysfs entry (/sys/bus/platform/drivers/ufshcd/*). The parameters are shown as hexadecimal numbers. The full information about the parameters could be found at UFS specifications 2.1. Signed-off-by: Stanislav Nijnikov <stanislav.nijnikov@wdc.com> Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>hifive-unleashed-5.1
Stanislav Nijnikov
Martin K. Petersen
parent
8c2582bfbd
commit
c720c09122
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@ -240,3 +240,176 @@ Description: This file shows the MIPI M-PHY version number in BCD format.
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The full information about the descriptor could be found at
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UFS specifications 2.1.
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The file is read only.
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What: /sys/bus/platform/drivers/ufshcd/*/geometry_descriptor/raw_device_capacity
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Date: February 2018
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Contact: Stanislav Nijnikov <stanislav.nijnikov@wdc.com>
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Description: This file shows the total memory quantity available to
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the user to configure the device logical units. This is one
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of the UFS geometry descriptor parameters. The full
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information about the descriptor could be found at
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UFS specifications 2.1.
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The file is read only.
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What: /sys/bus/platform/drivers/ufshcd/*/geometry_descriptor/max_number_of_luns
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Date: February 2018
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Contact: Stanislav Nijnikov <stanislav.nijnikov@wdc.com>
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Description: This file shows the maximum number of logical units
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supported by the UFS device. This is one of the UFS
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geometry descriptor parameters. The full information about
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the descriptor could be found at UFS specifications 2.1.
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The file is read only.
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What: /sys/bus/platform/drivers/ufshcd/*/geometry_descriptor/segment_size
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Date: February 2018
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Contact: Stanislav Nijnikov <stanislav.nijnikov@wdc.com>
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Description: This file shows the segment size. This is one of the UFS
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geometry descriptor parameters. The full information about
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the descriptor could be found at UFS specifications 2.1.
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The file is read only.
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What: /sys/bus/platform/drivers/ufshcd/*/geometry_descriptor/allocation_unit_size
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Date: February 2018
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Contact: Stanislav Nijnikov <stanislav.nijnikov@wdc.com>
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Description: This file shows the allocation unit size. This is one of
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the UFS geometry descriptor parameters. The full information
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about the descriptor could be found at UFS specifications 2.1.
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The file is read only.
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What: /sys/bus/platform/drivers/ufshcd/*/geometry_descriptor/min_addressable_block_size
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Date: February 2018
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Contact: Stanislav Nijnikov <stanislav.nijnikov@wdc.com>
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Description: This file shows the minimum addressable block size. This
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is one of the UFS geometry descriptor parameters. The full
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information about the descriptor could be found at UFS
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specifications 2.1.
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The file is read only.
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What: /sys/bus/platform/drivers/ufshcd/*/geometry_descriptor/optimal_read_block_size
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Date: February 2018
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Contact: Stanislav Nijnikov <stanislav.nijnikov@wdc.com>
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Description: This file shows the optimal read block size. This is one
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of the UFS geometry descriptor parameters. The full
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information about the descriptor could be found at UFS
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specifications 2.1.
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The file is read only.
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What: /sys/bus/platform/drivers/ufshcd/*/geometry_descriptor/optimal_write_block_size
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Date: February 2018
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Contact: Stanislav Nijnikov <stanislav.nijnikov@wdc.com>
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Description: This file shows the optimal write block size. This is one
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of the UFS geometry descriptor parameters. The full
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information about the descriptor could be found at UFS
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specifications 2.1.
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The file is read only.
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What: /sys/bus/platform/drivers/ufshcd/*/geometry_descriptor/max_in_buffer_size
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Date: February 2018
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Contact: Stanislav Nijnikov <stanislav.nijnikov@wdc.com>
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Description: This file shows the maximum data-in buffer size. This
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is one of the UFS geometry descriptor parameters. The full
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information about the descriptor could be found at UFS
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specifications 2.1.
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The file is read only.
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What: /sys/bus/platform/drivers/ufshcd/*/geometry_descriptor/max_out_buffer_size
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Date: February 2018
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Contact: Stanislav Nijnikov <stanislav.nijnikov@wdc.com>
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Description: This file shows the maximum data-out buffer size. This
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is one of the UFS geometry descriptor parameters. The full
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information about the descriptor could be found at UFS
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specifications 2.1.
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The file is read only.
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What: /sys/bus/platform/drivers/ufshcd/*/geometry_descriptor/rpmb_rw_size
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Date: February 2018
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Contact: Stanislav Nijnikov <stanislav.nijnikov@wdc.com>
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Description: This file shows the maximum number of RPMB frames allowed
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in Security Protocol In/Out. This is one of the UFS geometry
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descriptor parameters. The full information about the
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descriptor could be found at UFS specifications 2.1.
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The file is read only.
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What: /sys/bus/platform/drivers/ufshcd/*/geometry_descriptor/dyn_capacity_resource_policy
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Date: February 2018
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Contact: Stanislav Nijnikov <stanislav.nijnikov@wdc.com>
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Description: This file shows the dynamic capacity resource policy. This
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is one of the UFS geometry descriptor parameters. The full
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information about the descriptor could be found at
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UFS specifications 2.1.
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The file is read only.
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What: /sys/bus/platform/drivers/ufshcd/*/geometry_descriptor/data_ordering
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Date: February 2018
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Contact: Stanislav Nijnikov <stanislav.nijnikov@wdc.com>
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Description: This file shows support for out-of-order data transfer.
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This is one of the UFS geometry descriptor parameters.
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The full information about the descriptor could be found at
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UFS specifications 2.1.
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The file is read only.
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What: /sys/bus/platform/drivers/ufshcd/*/geometry_descriptor/max_number_of_contexts
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Date: February 2018
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Contact: Stanislav Nijnikov <stanislav.nijnikov@wdc.com>
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Description: This file shows maximum available number of contexts which
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are supported by the device. This is one of the UFS geometry
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descriptor parameters. The full information about the
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descriptor could be found at UFS specifications 2.1.
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The file is read only.
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What: /sys/bus/platform/drivers/ufshcd/*/geometry_descriptor/sys_data_tag_unit_size
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Date: February 2018
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Contact: Stanislav Nijnikov <stanislav.nijnikov@wdc.com>
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Description: This file shows system data tag unit size. This is one of
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the UFS geometry descriptor parameters. The full information
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about the descriptor could be found at UFS specifications 2.1.
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The file is read only.
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What: /sys/bus/platform/drivers/ufshcd/*/geometry_descriptor/sys_data_tag_resource_size
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Date: February 2018
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Contact: Stanislav Nijnikov <stanislav.nijnikov@wdc.com>
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Description: This file shows maximum storage area size allocated by
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the device to handle system data by the tagging mechanism.
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This is one of the UFS geometry descriptor parameters.
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The full information about the descriptor could be found at
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UFS specifications 2.1.
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The file is read only.
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What: /sys/bus/platform/drivers/ufshcd/*/geometry_descriptor/secure_removal_types
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Date: February 2018
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Contact: Stanislav Nijnikov <stanislav.nijnikov@wdc.com>
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Description: This file shows supported secure removal types. This is
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one of the UFS geometry descriptor parameters. The full
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information about the descriptor could be found at
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UFS specifications 2.1.
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The file is read only.
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What: /sys/bus/platform/drivers/ufshcd/*/geometry_descriptor/memory_types
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Date: February 2018
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Contact: Stanislav Nijnikov <stanislav.nijnikov@wdc.com>
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Description: This file shows supported memory types. This is one of
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the UFS geometry descriptor parameters. The full
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information about the descriptor could be found at
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UFS specifications 2.1.
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The file is read only.
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What: /sys/bus/platform/drivers/ufshcd/*/geometry_descriptor/*_memory_max_alloc_units
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Date: February 2018
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Contact: Stanislav Nijnikov <stanislav.nijnikov@wdc.com>
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Description: This file shows the maximum number of allocation units for
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different memory types (system code, non persistent,
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enhanced type 1-4). This is one of the UFS geometry
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descriptor parameters. The full information about the
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descriptor could be found at UFS specifications 2.1.
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The file is read only.
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What: /sys/bus/platform/drivers/ufshcd/*/geometry_descriptor/*_memory_capacity_adjustment_factor
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Date: February 2018
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Contact: Stanislav Nijnikov <stanislav.nijnikov@wdc.com>
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Description: This file shows the memory capacity adjustment factor for
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different memory types (system code, non persistent,
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enhanced type 1-4). This is one of the UFS geometry
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descriptor parameters. The full information about the
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descriptor could be found at UFS specifications 2.1.
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The file is read only.
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@ -266,10 +266,94 @@ static const struct attribute_group ufs_sysfs_interconnect_descriptor_group = {
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.attrs = ufs_sysfs_interconnect_descriptor,
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};
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#define UFS_GEOMETRY_DESC_PARAM(_name, _uname, _size) \
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UFS_DESC_PARAM(_name, _uname, GEOMETRY, _size)
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UFS_GEOMETRY_DESC_PARAM(raw_device_capacity, _DEV_CAP, 8);
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UFS_GEOMETRY_DESC_PARAM(max_number_of_luns, _MAX_NUM_LUN, 1);
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UFS_GEOMETRY_DESC_PARAM(segment_size, _SEG_SIZE, 4);
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UFS_GEOMETRY_DESC_PARAM(allocation_unit_size, _ALLOC_UNIT_SIZE, 1);
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UFS_GEOMETRY_DESC_PARAM(min_addressable_block_size, _MIN_BLK_SIZE, 1);
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UFS_GEOMETRY_DESC_PARAM(optimal_read_block_size, _OPT_RD_BLK_SIZE, 1);
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UFS_GEOMETRY_DESC_PARAM(optimal_write_block_size, _OPT_WR_BLK_SIZE, 1);
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UFS_GEOMETRY_DESC_PARAM(max_in_buffer_size, _MAX_IN_BUF_SIZE, 1);
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UFS_GEOMETRY_DESC_PARAM(max_out_buffer_size, _MAX_OUT_BUF_SIZE, 1);
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UFS_GEOMETRY_DESC_PARAM(rpmb_rw_size, _RPMB_RW_SIZE, 1);
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UFS_GEOMETRY_DESC_PARAM(dyn_capacity_resource_policy, _DYN_CAP_RSRC_PLC, 1);
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UFS_GEOMETRY_DESC_PARAM(data_ordering, _DATA_ORDER, 1);
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UFS_GEOMETRY_DESC_PARAM(max_number_of_contexts, _MAX_NUM_CTX, 1);
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UFS_GEOMETRY_DESC_PARAM(sys_data_tag_unit_size, _TAG_UNIT_SIZE, 1);
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UFS_GEOMETRY_DESC_PARAM(sys_data_tag_resource_size, _TAG_RSRC_SIZE, 1);
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UFS_GEOMETRY_DESC_PARAM(secure_removal_types, _SEC_RM_TYPES, 1);
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UFS_GEOMETRY_DESC_PARAM(memory_types, _MEM_TYPES, 2);
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UFS_GEOMETRY_DESC_PARAM(sys_code_memory_max_alloc_units,
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_SCM_MAX_NUM_UNITS, 4);
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UFS_GEOMETRY_DESC_PARAM(sys_code_memory_capacity_adjustment_factor,
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_SCM_CAP_ADJ_FCTR, 2);
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UFS_GEOMETRY_DESC_PARAM(non_persist_memory_max_alloc_units,
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_NPM_MAX_NUM_UNITS, 4);
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UFS_GEOMETRY_DESC_PARAM(non_persist_memory_capacity_adjustment_factor,
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_NPM_CAP_ADJ_FCTR, 2);
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UFS_GEOMETRY_DESC_PARAM(enh1_memory_max_alloc_units,
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_ENM1_MAX_NUM_UNITS, 4);
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UFS_GEOMETRY_DESC_PARAM(enh1_memory_capacity_adjustment_factor,
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_ENM1_CAP_ADJ_FCTR, 2);
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UFS_GEOMETRY_DESC_PARAM(enh2_memory_max_alloc_units,
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_ENM2_MAX_NUM_UNITS, 4);
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UFS_GEOMETRY_DESC_PARAM(enh2_memory_capacity_adjustment_factor,
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_ENM2_CAP_ADJ_FCTR, 2);
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UFS_GEOMETRY_DESC_PARAM(enh3_memory_max_alloc_units,
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_ENM3_MAX_NUM_UNITS, 4);
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UFS_GEOMETRY_DESC_PARAM(enh3_memory_capacity_adjustment_factor,
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_ENM3_CAP_ADJ_FCTR, 2);
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UFS_GEOMETRY_DESC_PARAM(enh4_memory_max_alloc_units,
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_ENM4_MAX_NUM_UNITS, 4);
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UFS_GEOMETRY_DESC_PARAM(enh4_memory_capacity_adjustment_factor,
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_ENM4_CAP_ADJ_FCTR, 2);
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static struct attribute *ufs_sysfs_geometry_descriptor[] = {
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&dev_attr_raw_device_capacity.attr,
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&dev_attr_max_number_of_luns.attr,
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&dev_attr_segment_size.attr,
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&dev_attr_allocation_unit_size.attr,
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&dev_attr_min_addressable_block_size.attr,
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&dev_attr_optimal_read_block_size.attr,
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&dev_attr_optimal_write_block_size.attr,
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&dev_attr_max_in_buffer_size.attr,
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&dev_attr_max_out_buffer_size.attr,
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&dev_attr_rpmb_rw_size.attr,
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&dev_attr_dyn_capacity_resource_policy.attr,
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&dev_attr_data_ordering.attr,
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&dev_attr_max_number_of_contexts.attr,
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&dev_attr_sys_data_tag_unit_size.attr,
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&dev_attr_sys_data_tag_resource_size.attr,
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&dev_attr_secure_removal_types.attr,
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&dev_attr_memory_types.attr,
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&dev_attr_sys_code_memory_max_alloc_units.attr,
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&dev_attr_sys_code_memory_capacity_adjustment_factor.attr,
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&dev_attr_non_persist_memory_max_alloc_units.attr,
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&dev_attr_non_persist_memory_capacity_adjustment_factor.attr,
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&dev_attr_enh1_memory_max_alloc_units.attr,
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&dev_attr_enh1_memory_capacity_adjustment_factor.attr,
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&dev_attr_enh2_memory_max_alloc_units.attr,
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&dev_attr_enh2_memory_capacity_adjustment_factor.attr,
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&dev_attr_enh3_memory_max_alloc_units.attr,
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&dev_attr_enh3_memory_capacity_adjustment_factor.attr,
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&dev_attr_enh4_memory_max_alloc_units.attr,
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&dev_attr_enh4_memory_capacity_adjustment_factor.attr,
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NULL,
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};
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static const struct attribute_group ufs_sysfs_geometry_descriptor_group = {
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.name = "geometry_descriptor",
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.attrs = ufs_sysfs_geometry_descriptor,
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};
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static const struct attribute_group *ufs_sysfs_groups[] = {
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&ufs_sysfs_default_group,
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&ufs_sysfs_device_descriptor_group,
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&ufs_sysfs_interconnect_descriptor_group,
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&ufs_sysfs_geometry_descriptor_group,
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NULL,
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};
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@ -238,6 +238,42 @@ enum interconnect_desc_param {
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INTERCONNECT_DESC_PARAM_MPHY_VER = 0x4,
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};
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/* Geometry descriptor parameters offsets in bytes*/
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enum geometry_desc_param {
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GEOMETRY_DESC_PARAM_LEN = 0x0,
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GEOMETRY_DESC_PARAM_TYPE = 0x1,
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GEOMETRY_DESC_PARAM_DEV_CAP = 0x4,
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GEOMETRY_DESC_PARAM_MAX_NUM_LUN = 0xC,
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GEOMETRY_DESC_PARAM_SEG_SIZE = 0xD,
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GEOMETRY_DESC_PARAM_ALLOC_UNIT_SIZE = 0x11,
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GEOMETRY_DESC_PARAM_MIN_BLK_SIZE = 0x12,
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GEOMETRY_DESC_PARAM_OPT_RD_BLK_SIZE = 0x13,
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GEOMETRY_DESC_PARAM_OPT_WR_BLK_SIZE = 0x14,
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GEOMETRY_DESC_PARAM_MAX_IN_BUF_SIZE = 0x15,
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GEOMETRY_DESC_PARAM_MAX_OUT_BUF_SIZE = 0x16,
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GEOMETRY_DESC_PARAM_RPMB_RW_SIZE = 0x17,
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GEOMETRY_DESC_PARAM_DYN_CAP_RSRC_PLC = 0x18,
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GEOMETRY_DESC_PARAM_DATA_ORDER = 0x19,
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GEOMETRY_DESC_PARAM_MAX_NUM_CTX = 0x1A,
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GEOMETRY_DESC_PARAM_TAG_UNIT_SIZE = 0x1B,
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GEOMETRY_DESC_PARAM_TAG_RSRC_SIZE = 0x1C,
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GEOMETRY_DESC_PARAM_SEC_RM_TYPES = 0x1D,
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GEOMETRY_DESC_PARAM_MEM_TYPES = 0x1E,
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GEOMETRY_DESC_PARAM_SCM_MAX_NUM_UNITS = 0x20,
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GEOMETRY_DESC_PARAM_SCM_CAP_ADJ_FCTR = 0x24,
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GEOMETRY_DESC_PARAM_NPM_MAX_NUM_UNITS = 0x26,
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GEOMETRY_DESC_PARAM_NPM_CAP_ADJ_FCTR = 0x2A,
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GEOMETRY_DESC_PARAM_ENM1_MAX_NUM_UNITS = 0x2C,
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GEOMETRY_DESC_PARAM_ENM1_CAP_ADJ_FCTR = 0x30,
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GEOMETRY_DESC_PARAM_ENM2_MAX_NUM_UNITS = 0x32,
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GEOMETRY_DESC_PARAM_ENM2_CAP_ADJ_FCTR = 0x36,
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GEOMETRY_DESC_PARAM_ENM3_MAX_NUM_UNITS = 0x38,
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GEOMETRY_DESC_PARAM_ENM3_CAP_ADJ_FCTR = 0x3C,
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GEOMETRY_DESC_PARAM_ENM4_MAX_NUM_UNITS = 0x3E,
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GEOMETRY_DESC_PARAM_ENM4_CAP_ADJ_FCTR = 0x42,
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GEOMETRY_DESC_PARAM_OPT_LOG_BLK_SIZE = 0x44,
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};
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/*
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* Logical Unit Write Protect
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* 00h: LU not write protected
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