scsi: ufs: sysfs: power descriptor
This patch introduces a sysfs group entry for the UFS power descriptor parameters. The group adds "power_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>
This commit is contained in:
Stanislav Nijnikov
Martin K. Petersen
parent
c648c2d27f
commit
c2e6e283c5
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@ -441,3 +441,13 @@ Description: This file shows indication of the device life time
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parameters. The full information about the descriptor
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parameters. The full information about the descriptor
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could be found at UFS specifications 2.1.
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could be found at UFS specifications 2.1.
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The file is read only.
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The file is read only.
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What: /sys/bus/platform/drivers/ufshcd/*/power_descriptor/active_icc_levels_vcc*
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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 VCC, VCCQ and VCCQ2 value for
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active ICC levels from 0 to 15. This is one of the UFS
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power 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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@ -368,12 +368,129 @@ static const struct attribute_group ufs_sysfs_health_descriptor_group = {
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.attrs = ufs_sysfs_health_descriptor,
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.attrs = ufs_sysfs_health_descriptor,
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};
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};
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#define UFS_POWER_DESC_PARAM(_name, _uname, _index) \
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static ssize_t _name##_index##_show(struct device *dev, \
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struct device_attribute *attr, char *buf) \
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{ \
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struct ufs_hba *hba = dev_get_drvdata(dev); \
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return ufs_sysfs_read_desc_param(hba, QUERY_DESC_IDN_POWER, 0, \
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PWR_DESC##_uname##_0 + _index * 2, buf, 2); \
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} \
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static DEVICE_ATTR_RO(_name##_index)
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UFS_POWER_DESC_PARAM(active_icc_levels_vcc, _ACTIVE_LVLS_VCC, 0);
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UFS_POWER_DESC_PARAM(active_icc_levels_vcc, _ACTIVE_LVLS_VCC, 1);
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UFS_POWER_DESC_PARAM(active_icc_levels_vcc, _ACTIVE_LVLS_VCC, 2);
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UFS_POWER_DESC_PARAM(active_icc_levels_vcc, _ACTIVE_LVLS_VCC, 3);
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UFS_POWER_DESC_PARAM(active_icc_levels_vcc, _ACTIVE_LVLS_VCC, 4);
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UFS_POWER_DESC_PARAM(active_icc_levels_vcc, _ACTIVE_LVLS_VCC, 5);
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UFS_POWER_DESC_PARAM(active_icc_levels_vcc, _ACTIVE_LVLS_VCC, 6);
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UFS_POWER_DESC_PARAM(active_icc_levels_vcc, _ACTIVE_LVLS_VCC, 7);
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UFS_POWER_DESC_PARAM(active_icc_levels_vcc, _ACTIVE_LVLS_VCC, 8);
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UFS_POWER_DESC_PARAM(active_icc_levels_vcc, _ACTIVE_LVLS_VCC, 9);
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UFS_POWER_DESC_PARAM(active_icc_levels_vcc, _ACTIVE_LVLS_VCC, 10);
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UFS_POWER_DESC_PARAM(active_icc_levels_vcc, _ACTIVE_LVLS_VCC, 11);
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UFS_POWER_DESC_PARAM(active_icc_levels_vcc, _ACTIVE_LVLS_VCC, 12);
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UFS_POWER_DESC_PARAM(active_icc_levels_vcc, _ACTIVE_LVLS_VCC, 13);
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UFS_POWER_DESC_PARAM(active_icc_levels_vcc, _ACTIVE_LVLS_VCC, 14);
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UFS_POWER_DESC_PARAM(active_icc_levels_vcc, _ACTIVE_LVLS_VCC, 15);
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UFS_POWER_DESC_PARAM(active_icc_levels_vccq, _ACTIVE_LVLS_VCCQ, 0);
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UFS_POWER_DESC_PARAM(active_icc_levels_vccq, _ACTIVE_LVLS_VCCQ, 1);
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UFS_POWER_DESC_PARAM(active_icc_levels_vccq, _ACTIVE_LVLS_VCCQ, 2);
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UFS_POWER_DESC_PARAM(active_icc_levels_vccq, _ACTIVE_LVLS_VCCQ, 3);
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UFS_POWER_DESC_PARAM(active_icc_levels_vccq, _ACTIVE_LVLS_VCCQ, 4);
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UFS_POWER_DESC_PARAM(active_icc_levels_vccq, _ACTIVE_LVLS_VCCQ, 5);
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UFS_POWER_DESC_PARAM(active_icc_levels_vccq, _ACTIVE_LVLS_VCCQ, 6);
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UFS_POWER_DESC_PARAM(active_icc_levels_vccq, _ACTIVE_LVLS_VCCQ, 7);
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UFS_POWER_DESC_PARAM(active_icc_levels_vccq, _ACTIVE_LVLS_VCCQ, 8);
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UFS_POWER_DESC_PARAM(active_icc_levels_vccq, _ACTIVE_LVLS_VCCQ, 9);
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UFS_POWER_DESC_PARAM(active_icc_levels_vccq, _ACTIVE_LVLS_VCCQ, 10);
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UFS_POWER_DESC_PARAM(active_icc_levels_vccq, _ACTIVE_LVLS_VCCQ, 11);
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UFS_POWER_DESC_PARAM(active_icc_levels_vccq, _ACTIVE_LVLS_VCCQ, 12);
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UFS_POWER_DESC_PARAM(active_icc_levels_vccq, _ACTIVE_LVLS_VCCQ, 13);
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UFS_POWER_DESC_PARAM(active_icc_levels_vccq, _ACTIVE_LVLS_VCCQ, 14);
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UFS_POWER_DESC_PARAM(active_icc_levels_vccq, _ACTIVE_LVLS_VCCQ, 15);
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UFS_POWER_DESC_PARAM(active_icc_levels_vccq2, _ACTIVE_LVLS_VCCQ2, 0);
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UFS_POWER_DESC_PARAM(active_icc_levels_vccq2, _ACTIVE_LVLS_VCCQ2, 1);
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UFS_POWER_DESC_PARAM(active_icc_levels_vccq2, _ACTIVE_LVLS_VCCQ2, 2);
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UFS_POWER_DESC_PARAM(active_icc_levels_vccq2, _ACTIVE_LVLS_VCCQ2, 3);
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UFS_POWER_DESC_PARAM(active_icc_levels_vccq2, _ACTIVE_LVLS_VCCQ2, 4);
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UFS_POWER_DESC_PARAM(active_icc_levels_vccq2, _ACTIVE_LVLS_VCCQ2, 5);
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UFS_POWER_DESC_PARAM(active_icc_levels_vccq2, _ACTIVE_LVLS_VCCQ2, 6);
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UFS_POWER_DESC_PARAM(active_icc_levels_vccq2, _ACTIVE_LVLS_VCCQ2, 7);
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UFS_POWER_DESC_PARAM(active_icc_levels_vccq2, _ACTIVE_LVLS_VCCQ2, 8);
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UFS_POWER_DESC_PARAM(active_icc_levels_vccq2, _ACTIVE_LVLS_VCCQ2, 9);
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UFS_POWER_DESC_PARAM(active_icc_levels_vccq2, _ACTIVE_LVLS_VCCQ2, 10);
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UFS_POWER_DESC_PARAM(active_icc_levels_vccq2, _ACTIVE_LVLS_VCCQ2, 11);
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UFS_POWER_DESC_PARAM(active_icc_levels_vccq2, _ACTIVE_LVLS_VCCQ2, 12);
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UFS_POWER_DESC_PARAM(active_icc_levels_vccq2, _ACTIVE_LVLS_VCCQ2, 13);
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UFS_POWER_DESC_PARAM(active_icc_levels_vccq2, _ACTIVE_LVLS_VCCQ2, 14);
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UFS_POWER_DESC_PARAM(active_icc_levels_vccq2, _ACTIVE_LVLS_VCCQ2, 15);
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static struct attribute *ufs_sysfs_power_descriptor[] = {
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&dev_attr_active_icc_levels_vcc0.attr,
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&dev_attr_active_icc_levels_vcc1.attr,
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&dev_attr_active_icc_levels_vcc2.attr,
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&dev_attr_active_icc_levels_vcc3.attr,
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&dev_attr_active_icc_levels_vcc4.attr,
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&dev_attr_active_icc_levels_vcc5.attr,
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&dev_attr_active_icc_levels_vcc6.attr,
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&dev_attr_active_icc_levels_vcc7.attr,
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&dev_attr_active_icc_levels_vcc8.attr,
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&dev_attr_active_icc_levels_vcc9.attr,
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&dev_attr_active_icc_levels_vcc10.attr,
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&dev_attr_active_icc_levels_vcc11.attr,
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&dev_attr_active_icc_levels_vcc12.attr,
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&dev_attr_active_icc_levels_vcc13.attr,
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&dev_attr_active_icc_levels_vcc14.attr,
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&dev_attr_active_icc_levels_vcc15.attr,
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&dev_attr_active_icc_levels_vccq0.attr,
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&dev_attr_active_icc_levels_vccq1.attr,
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&dev_attr_active_icc_levels_vccq2.attr,
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&dev_attr_active_icc_levels_vccq3.attr,
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&dev_attr_active_icc_levels_vccq4.attr,
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&dev_attr_active_icc_levels_vccq5.attr,
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&dev_attr_active_icc_levels_vccq6.attr,
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&dev_attr_active_icc_levels_vccq7.attr,
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&dev_attr_active_icc_levels_vccq8.attr,
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&dev_attr_active_icc_levels_vccq9.attr,
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&dev_attr_active_icc_levels_vccq10.attr,
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&dev_attr_active_icc_levels_vccq11.attr,
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&dev_attr_active_icc_levels_vccq12.attr,
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&dev_attr_active_icc_levels_vccq13.attr,
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&dev_attr_active_icc_levels_vccq14.attr,
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&dev_attr_active_icc_levels_vccq15.attr,
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&dev_attr_active_icc_levels_vccq20.attr,
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&dev_attr_active_icc_levels_vccq21.attr,
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&dev_attr_active_icc_levels_vccq22.attr,
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&dev_attr_active_icc_levels_vccq23.attr,
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&dev_attr_active_icc_levels_vccq24.attr,
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&dev_attr_active_icc_levels_vccq25.attr,
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&dev_attr_active_icc_levels_vccq26.attr,
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&dev_attr_active_icc_levels_vccq27.attr,
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&dev_attr_active_icc_levels_vccq28.attr,
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&dev_attr_active_icc_levels_vccq29.attr,
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&dev_attr_active_icc_levels_vccq210.attr,
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&dev_attr_active_icc_levels_vccq211.attr,
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&dev_attr_active_icc_levels_vccq212.attr,
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&dev_attr_active_icc_levels_vccq213.attr,
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&dev_attr_active_icc_levels_vccq214.attr,
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&dev_attr_active_icc_levels_vccq215.attr,
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NULL,
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};
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static const struct attribute_group ufs_sysfs_power_descriptor_group = {
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.name = "power_descriptor",
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.attrs = ufs_sysfs_power_descriptor,
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};
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static const struct attribute_group *ufs_sysfs_groups[] = {
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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_default_group,
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&ufs_sysfs_device_descriptor_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_interconnect_descriptor_group,
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&ufs_sysfs_geometry_descriptor_group,
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&ufs_sysfs_geometry_descriptor_group,
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&ufs_sysfs_health_descriptor_group,
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&ufs_sysfs_health_descriptor_group,
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&ufs_sysfs_power_descriptor_group,
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NULL,
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NULL,
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};
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};
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