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linux_dsm_epyc7002/drivers/scsi/ufs/ufs-sysfs.c
Stanislav Nijnikov ec92b59cc0 scsi: ufs: sysfs: attributes 
This patch introduces a sysfs group entry for the UFS attributes. The
group adds "attributes" folder under the UFS driver sysfs entry
(/sys/bus/platform/drivers/ufshcd/*). The attributes are shown
as hexadecimal numbers. The full information about the attributes 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>
2018-02-15 18:35:05 -05:00

740 lines
26 KiB
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// SPDX-License-Identifier: GPL-2.0
// Copyright (C) 2018 Western Digital Corporation
#include <linux/err.h>
#include <linux/string.h>
#include <asm/unaligned.h>
#include "ufs.h"
#include "ufs-sysfs.h"
static const char *ufschd_uic_link_state_to_string(
enum uic_link_state state)
{
switch (state) {
case UIC_LINK_OFF_STATE: return "OFF";
case UIC_LINK_ACTIVE_STATE: return "ACTIVE";
case UIC_LINK_HIBERN8_STATE: return "HIBERN8";
default: return "UNKNOWN";
}
}
static const char *ufschd_ufs_dev_pwr_mode_to_string(
enum ufs_dev_pwr_mode state)
{
switch (state) {
case UFS_ACTIVE_PWR_MODE: return "ACTIVE";
case UFS_SLEEP_PWR_MODE: return "SLEEP";
case UFS_POWERDOWN_PWR_MODE: return "POWERDOWN";
default: return "UNKNOWN";
}
}
static inline ssize_t ufs_sysfs_pm_lvl_store(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count,
bool rpm)
{
struct ufs_hba *hba = dev_get_drvdata(dev);
unsigned long flags, value;
if (kstrtoul(buf, 0, &value))
return -EINVAL;
if (value >= UFS_PM_LVL_MAX)
return -EINVAL;
spin_lock_irqsave(hba->host->host_lock, flags);
if (rpm)
hba->rpm_lvl = value;
else
hba->spm_lvl = value;
spin_unlock_irqrestore(hba->host->host_lock, flags);
return count;
}
static ssize_t rpm_lvl_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct ufs_hba *hba = dev_get_drvdata(dev);
int curr_len;
u8 lvl;
curr_len = snprintf(buf, PAGE_SIZE,
"\nCurrent Runtime PM level [%d] => dev_state [%s] link_state [%s]\n",
hba->rpm_lvl,
ufschd_ufs_dev_pwr_mode_to_string(
ufs_pm_lvl_states[hba->rpm_lvl].dev_state),
ufschd_uic_link_state_to_string(
ufs_pm_lvl_states[hba->rpm_lvl].link_state));
curr_len += snprintf((buf + curr_len), (PAGE_SIZE - curr_len),
"\nAll available Runtime PM levels info:\n");
for (lvl = UFS_PM_LVL_0; lvl < UFS_PM_LVL_MAX; lvl++)
curr_len += snprintf((buf + curr_len), (PAGE_SIZE - curr_len),
"\tRuntime PM level [%d] => dev_state [%s] link_state [%s]\n",
lvl,
ufschd_ufs_dev_pwr_mode_to_string(
ufs_pm_lvl_states[lvl].dev_state),
ufschd_uic_link_state_to_string(
ufs_pm_lvl_states[lvl].link_state));
return curr_len;
}
static ssize_t rpm_lvl_store(struct device *dev,
struct device_attribute *attr, const char *buf, size_t count)
{
return ufs_sysfs_pm_lvl_store(dev, attr, buf, count, true);
}
static ssize_t spm_lvl_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct ufs_hba *hba = dev_get_drvdata(dev);
int curr_len;
u8 lvl;
curr_len = snprintf(buf, PAGE_SIZE,
"\nCurrent System PM level [%d] => dev_state [%s] link_state [%s]\n",
hba->spm_lvl,
ufschd_ufs_dev_pwr_mode_to_string(
ufs_pm_lvl_states[hba->spm_lvl].dev_state),
ufschd_uic_link_state_to_string(
ufs_pm_lvl_states[hba->spm_lvl].link_state));
curr_len += snprintf((buf + curr_len), (PAGE_SIZE - curr_len),
"\nAll available System PM levels info:\n");
for (lvl = UFS_PM_LVL_0; lvl < UFS_PM_LVL_MAX; lvl++)
curr_len += snprintf((buf + curr_len), (PAGE_SIZE - curr_len),
"\tSystem PM level [%d] => dev_state [%s] link_state [%s]\n",
lvl,
ufschd_ufs_dev_pwr_mode_to_string(
ufs_pm_lvl_states[lvl].dev_state),
ufschd_uic_link_state_to_string(
ufs_pm_lvl_states[lvl].link_state));
return curr_len;
}
static ssize_t spm_lvl_store(struct device *dev,
struct device_attribute *attr, const char *buf, size_t count)
{
return ufs_sysfs_pm_lvl_store(dev, attr, buf, count, false);
}
static DEVICE_ATTR_RW(rpm_lvl);
static DEVICE_ATTR_RW(spm_lvl);
static struct attribute *ufs_sysfs_ufshcd_attrs[] = {
&dev_attr_rpm_lvl.attr,
&dev_attr_spm_lvl.attr,
NULL
};
static const struct attribute_group ufs_sysfs_default_group = {
.attrs = ufs_sysfs_ufshcd_attrs,
};
static ssize_t ufs_sysfs_read_desc_param(struct ufs_hba *hba,
enum desc_idn desc_id,
u8 desc_index,
u8 param_offset,
u8 *sysfs_buf,
u8 param_size)
{
u8 desc_buf[8] = {0};
int ret;
if (param_size > 8)
return -EINVAL;
ret = ufshcd_read_desc_param(hba, desc_id, desc_index,
param_offset, desc_buf, param_size);
if (ret)
return -EINVAL;
switch (param_size) {
case 1:
ret = sprintf(sysfs_buf, "0x%02X\n", *desc_buf);
break;
case 2:
ret = sprintf(sysfs_buf, "0x%04X\n",
get_unaligned_be16(desc_buf));
break;
case 4:
ret = sprintf(sysfs_buf, "0x%08X\n",
get_unaligned_be32(desc_buf));
break;
case 8:
ret = sprintf(sysfs_buf, "0x%016llX\n",
get_unaligned_be64(desc_buf));
break;
}
return ret;
}
#define UFS_DESC_PARAM(_name, _puname, _duname, _size) \
static ssize_t _name##_show(struct device *dev, \
struct device_attribute *attr, char *buf) \
{ \
struct ufs_hba *hba = dev_get_drvdata(dev); \
return ufs_sysfs_read_desc_param(hba, QUERY_DESC_IDN_##_duname, \
0, _duname##_DESC_PARAM##_puname, buf, _size); \
} \
static DEVICE_ATTR_RO(_name)
#define UFS_DEVICE_DESC_PARAM(_name, _uname, _size) \
UFS_DESC_PARAM(_name, _uname, DEVICE, _size)
UFS_DEVICE_DESC_PARAM(device_type, _DEVICE_TYPE, 1);
UFS_DEVICE_DESC_PARAM(device_class, _DEVICE_CLASS, 1);
UFS_DEVICE_DESC_PARAM(device_sub_class, _DEVICE_SUB_CLASS, 1);
UFS_DEVICE_DESC_PARAM(protocol, _PRTCL, 1);
UFS_DEVICE_DESC_PARAM(number_of_luns, _NUM_LU, 1);
UFS_DEVICE_DESC_PARAM(number_of_wluns, _NUM_WLU, 1);
UFS_DEVICE_DESC_PARAM(boot_enable, _BOOT_ENBL, 1);
UFS_DEVICE_DESC_PARAM(descriptor_access_enable, _DESC_ACCSS_ENBL, 1);
UFS_DEVICE_DESC_PARAM(initial_power_mode, _INIT_PWR_MODE, 1);
UFS_DEVICE_DESC_PARAM(high_priority_lun, _HIGH_PR_LUN, 1);
UFS_DEVICE_DESC_PARAM(secure_removal_type, _SEC_RMV_TYPE, 1);
UFS_DEVICE_DESC_PARAM(support_security_lun, _SEC_LU, 1);
UFS_DEVICE_DESC_PARAM(bkops_termination_latency, _BKOP_TERM_LT, 1);
UFS_DEVICE_DESC_PARAM(initial_active_icc_level, _ACTVE_ICC_LVL, 1);
UFS_DEVICE_DESC_PARAM(specification_version, _SPEC_VER, 2);
UFS_DEVICE_DESC_PARAM(manufacturing_date, _MANF_DATE, 2);
UFS_DEVICE_DESC_PARAM(manufacturer_id, _MANF_ID, 2);
UFS_DEVICE_DESC_PARAM(rtt_capability, _RTT_CAP, 1);
UFS_DEVICE_DESC_PARAM(rtc_update, _FRQ_RTC, 2);
UFS_DEVICE_DESC_PARAM(ufs_features, _UFS_FEAT, 1);
UFS_DEVICE_DESC_PARAM(ffu_timeout, _FFU_TMT, 1);
UFS_DEVICE_DESC_PARAM(queue_depth, _Q_DPTH, 1);
UFS_DEVICE_DESC_PARAM(device_version, _DEV_VER, 2);
UFS_DEVICE_DESC_PARAM(number_of_secure_wpa, _NUM_SEC_WPA, 1);
UFS_DEVICE_DESC_PARAM(psa_max_data_size, _PSA_MAX_DATA, 4);
UFS_DEVICE_DESC_PARAM(psa_state_timeout, _PSA_TMT, 1);
static struct attribute *ufs_sysfs_device_descriptor[] = {
&dev_attr_device_type.attr,
&dev_attr_device_class.attr,
&dev_attr_device_sub_class.attr,
&dev_attr_protocol.attr,
&dev_attr_number_of_luns.attr,
&dev_attr_number_of_wluns.attr,
&dev_attr_boot_enable.attr,
&dev_attr_descriptor_access_enable.attr,
&dev_attr_initial_power_mode.attr,
&dev_attr_high_priority_lun.attr,
&dev_attr_secure_removal_type.attr,
&dev_attr_support_security_lun.attr,
&dev_attr_bkops_termination_latency.attr,
&dev_attr_initial_active_icc_level.attr,
&dev_attr_specification_version.attr,
&dev_attr_manufacturing_date.attr,
&dev_attr_manufacturer_id.attr,
&dev_attr_rtt_capability.attr,
&dev_attr_rtc_update.attr,
&dev_attr_ufs_features.attr,
&dev_attr_ffu_timeout.attr,
&dev_attr_queue_depth.attr,
&dev_attr_device_version.attr,
&dev_attr_number_of_secure_wpa.attr,
&dev_attr_psa_max_data_size.attr,
&dev_attr_psa_state_timeout.attr,
NULL,
};
static const struct attribute_group ufs_sysfs_device_descriptor_group = {
.name = "device_descriptor",
.attrs = ufs_sysfs_device_descriptor,
};
#define UFS_INTERCONNECT_DESC_PARAM(_name, _uname, _size) \
UFS_DESC_PARAM(_name, _uname, INTERCONNECT, _size)
UFS_INTERCONNECT_DESC_PARAM(unipro_version, _UNIPRO_VER, 2);
UFS_INTERCONNECT_DESC_PARAM(mphy_version, _MPHY_VER, 2);
static struct attribute *ufs_sysfs_interconnect_descriptor[] = {
&dev_attr_unipro_version.attr,
&dev_attr_mphy_version.attr,
NULL,
};
static const struct attribute_group ufs_sysfs_interconnect_descriptor_group = {
.name = "interconnect_descriptor",
.attrs = ufs_sysfs_interconnect_descriptor,
};
#define UFS_GEOMETRY_DESC_PARAM(_name, _uname, _size) \
UFS_DESC_PARAM(_name, _uname, GEOMETRY, _size)
UFS_GEOMETRY_DESC_PARAM(raw_device_capacity, _DEV_CAP, 8);
UFS_GEOMETRY_DESC_PARAM(max_number_of_luns, _MAX_NUM_LUN, 1);
UFS_GEOMETRY_DESC_PARAM(segment_size, _SEG_SIZE, 4);
UFS_GEOMETRY_DESC_PARAM(allocation_unit_size, _ALLOC_UNIT_SIZE, 1);
UFS_GEOMETRY_DESC_PARAM(min_addressable_block_size, _MIN_BLK_SIZE, 1);
UFS_GEOMETRY_DESC_PARAM(optimal_read_block_size, _OPT_RD_BLK_SIZE, 1);
UFS_GEOMETRY_DESC_PARAM(optimal_write_block_size, _OPT_WR_BLK_SIZE, 1);
UFS_GEOMETRY_DESC_PARAM(max_in_buffer_size, _MAX_IN_BUF_SIZE, 1);
UFS_GEOMETRY_DESC_PARAM(max_out_buffer_size, _MAX_OUT_BUF_SIZE, 1);
UFS_GEOMETRY_DESC_PARAM(rpmb_rw_size, _RPMB_RW_SIZE, 1);
UFS_GEOMETRY_DESC_PARAM(dyn_capacity_resource_policy, _DYN_CAP_RSRC_PLC, 1);
UFS_GEOMETRY_DESC_PARAM(data_ordering, _DATA_ORDER, 1);
UFS_GEOMETRY_DESC_PARAM(max_number_of_contexts, _MAX_NUM_CTX, 1);
UFS_GEOMETRY_DESC_PARAM(sys_data_tag_unit_size, _TAG_UNIT_SIZE, 1);
UFS_GEOMETRY_DESC_PARAM(sys_data_tag_resource_size, _TAG_RSRC_SIZE, 1);
UFS_GEOMETRY_DESC_PARAM(secure_removal_types, _SEC_RM_TYPES, 1);
UFS_GEOMETRY_DESC_PARAM(memory_types, _MEM_TYPES, 2);
UFS_GEOMETRY_DESC_PARAM(sys_code_memory_max_alloc_units,
_SCM_MAX_NUM_UNITS, 4);
UFS_GEOMETRY_DESC_PARAM(sys_code_memory_capacity_adjustment_factor,
_SCM_CAP_ADJ_FCTR, 2);
UFS_GEOMETRY_DESC_PARAM(non_persist_memory_max_alloc_units,
_NPM_MAX_NUM_UNITS, 4);
UFS_GEOMETRY_DESC_PARAM(non_persist_memory_capacity_adjustment_factor,
_NPM_CAP_ADJ_FCTR, 2);
UFS_GEOMETRY_DESC_PARAM(enh1_memory_max_alloc_units,
_ENM1_MAX_NUM_UNITS, 4);
UFS_GEOMETRY_DESC_PARAM(enh1_memory_capacity_adjustment_factor,
_ENM1_CAP_ADJ_FCTR, 2);
UFS_GEOMETRY_DESC_PARAM(enh2_memory_max_alloc_units,
_ENM2_MAX_NUM_UNITS, 4);
UFS_GEOMETRY_DESC_PARAM(enh2_memory_capacity_adjustment_factor,
_ENM2_CAP_ADJ_FCTR, 2);
UFS_GEOMETRY_DESC_PARAM(enh3_memory_max_alloc_units,
_ENM3_MAX_NUM_UNITS, 4);
UFS_GEOMETRY_DESC_PARAM(enh3_memory_capacity_adjustment_factor,
_ENM3_CAP_ADJ_FCTR, 2);
UFS_GEOMETRY_DESC_PARAM(enh4_memory_max_alloc_units,
_ENM4_MAX_NUM_UNITS, 4);
UFS_GEOMETRY_DESC_PARAM(enh4_memory_capacity_adjustment_factor,
_ENM4_CAP_ADJ_FCTR, 2);
static struct attribute *ufs_sysfs_geometry_descriptor[] = {
&dev_attr_raw_device_capacity.attr,
&dev_attr_max_number_of_luns.attr,
&dev_attr_segment_size.attr,
&dev_attr_allocation_unit_size.attr,
&dev_attr_min_addressable_block_size.attr,
&dev_attr_optimal_read_block_size.attr,
&dev_attr_optimal_write_block_size.attr,
&dev_attr_max_in_buffer_size.attr,
&dev_attr_max_out_buffer_size.attr,
&dev_attr_rpmb_rw_size.attr,
&dev_attr_dyn_capacity_resource_policy.attr,
&dev_attr_data_ordering.attr,
&dev_attr_max_number_of_contexts.attr,
&dev_attr_sys_data_tag_unit_size.attr,
&dev_attr_sys_data_tag_resource_size.attr,
&dev_attr_secure_removal_types.attr,
&dev_attr_memory_types.attr,
&dev_attr_sys_code_memory_max_alloc_units.attr,
&dev_attr_sys_code_memory_capacity_adjustment_factor.attr,
&dev_attr_non_persist_memory_max_alloc_units.attr,
&dev_attr_non_persist_memory_capacity_adjustment_factor.attr,
&dev_attr_enh1_memory_max_alloc_units.attr,
&dev_attr_enh1_memory_capacity_adjustment_factor.attr,
&dev_attr_enh2_memory_max_alloc_units.attr,
&dev_attr_enh2_memory_capacity_adjustment_factor.attr,
&dev_attr_enh3_memory_max_alloc_units.attr,
&dev_attr_enh3_memory_capacity_adjustment_factor.attr,
&dev_attr_enh4_memory_max_alloc_units.attr,
&dev_attr_enh4_memory_capacity_adjustment_factor.attr,
NULL,
};
static const struct attribute_group ufs_sysfs_geometry_descriptor_group = {
.name = "geometry_descriptor",
.attrs = ufs_sysfs_geometry_descriptor,
};
#define UFS_HEALTH_DESC_PARAM(_name, _uname, _size) \
UFS_DESC_PARAM(_name, _uname, HEALTH, _size)
UFS_HEALTH_DESC_PARAM(eol_info, _EOL_INFO, 1);
UFS_HEALTH_DESC_PARAM(life_time_estimation_a, _LIFE_TIME_EST_A, 1);
UFS_HEALTH_DESC_PARAM(life_time_estimation_b, _LIFE_TIME_EST_B, 1);
static struct attribute *ufs_sysfs_health_descriptor[] = {
&dev_attr_eol_info.attr,
&dev_attr_life_time_estimation_a.attr,
&dev_attr_life_time_estimation_b.attr,
NULL,
};
static const struct attribute_group ufs_sysfs_health_descriptor_group = {
.name = "health_descriptor",
.attrs = ufs_sysfs_health_descriptor,
};
#define UFS_POWER_DESC_PARAM(_name, _uname, _index) \
static ssize_t _name##_index##_show(struct device *dev, \
struct device_attribute *attr, char *buf) \
{ \
struct ufs_hba *hba = dev_get_drvdata(dev); \
return ufs_sysfs_read_desc_param(hba, QUERY_DESC_IDN_POWER, 0, \
PWR_DESC##_uname##_0 + _index * 2, buf, 2); \
} \
static DEVICE_ATTR_RO(_name##_index)
UFS_POWER_DESC_PARAM(active_icc_levels_vcc, _ACTIVE_LVLS_VCC, 0);
UFS_POWER_DESC_PARAM(active_icc_levels_vcc, _ACTIVE_LVLS_VCC, 1);
UFS_POWER_DESC_PARAM(active_icc_levels_vcc, _ACTIVE_LVLS_VCC, 2);
UFS_POWER_DESC_PARAM(active_icc_levels_vcc, _ACTIVE_LVLS_VCC, 3);
UFS_POWER_DESC_PARAM(active_icc_levels_vcc, _ACTIVE_LVLS_VCC, 4);
UFS_POWER_DESC_PARAM(active_icc_levels_vcc, _ACTIVE_LVLS_VCC, 5);
UFS_POWER_DESC_PARAM(active_icc_levels_vcc, _ACTIVE_LVLS_VCC, 6);
UFS_POWER_DESC_PARAM(active_icc_levels_vcc, _ACTIVE_LVLS_VCC, 7);
UFS_POWER_DESC_PARAM(active_icc_levels_vcc, _ACTIVE_LVLS_VCC, 8);
UFS_POWER_DESC_PARAM(active_icc_levels_vcc, _ACTIVE_LVLS_VCC, 9);
UFS_POWER_DESC_PARAM(active_icc_levels_vcc, _ACTIVE_LVLS_VCC, 10);
UFS_POWER_DESC_PARAM(active_icc_levels_vcc, _ACTIVE_LVLS_VCC, 11);
UFS_POWER_DESC_PARAM(active_icc_levels_vcc, _ACTIVE_LVLS_VCC, 12);
UFS_POWER_DESC_PARAM(active_icc_levels_vcc, _ACTIVE_LVLS_VCC, 13);
UFS_POWER_DESC_PARAM(active_icc_levels_vcc, _ACTIVE_LVLS_VCC, 14);
UFS_POWER_DESC_PARAM(active_icc_levels_vcc, _ACTIVE_LVLS_VCC, 15);
UFS_POWER_DESC_PARAM(active_icc_levels_vccq, _ACTIVE_LVLS_VCCQ, 0);
UFS_POWER_DESC_PARAM(active_icc_levels_vccq, _ACTIVE_LVLS_VCCQ, 1);
UFS_POWER_DESC_PARAM(active_icc_levels_vccq, _ACTIVE_LVLS_VCCQ, 2);
UFS_POWER_DESC_PARAM(active_icc_levels_vccq, _ACTIVE_LVLS_VCCQ, 3);
UFS_POWER_DESC_PARAM(active_icc_levels_vccq, _ACTIVE_LVLS_VCCQ, 4);
UFS_POWER_DESC_PARAM(active_icc_levels_vccq, _ACTIVE_LVLS_VCCQ, 5);
UFS_POWER_DESC_PARAM(active_icc_levels_vccq, _ACTIVE_LVLS_VCCQ, 6);
UFS_POWER_DESC_PARAM(active_icc_levels_vccq, _ACTIVE_LVLS_VCCQ, 7);
UFS_POWER_DESC_PARAM(active_icc_levels_vccq, _ACTIVE_LVLS_VCCQ, 8);
UFS_POWER_DESC_PARAM(active_icc_levels_vccq, _ACTIVE_LVLS_VCCQ, 9);
UFS_POWER_DESC_PARAM(active_icc_levels_vccq, _ACTIVE_LVLS_VCCQ, 10);
UFS_POWER_DESC_PARAM(active_icc_levels_vccq, _ACTIVE_LVLS_VCCQ, 11);
UFS_POWER_DESC_PARAM(active_icc_levels_vccq, _ACTIVE_LVLS_VCCQ, 12);
UFS_POWER_DESC_PARAM(active_icc_levels_vccq, _ACTIVE_LVLS_VCCQ, 13);
UFS_POWER_DESC_PARAM(active_icc_levels_vccq, _ACTIVE_LVLS_VCCQ, 14);
UFS_POWER_DESC_PARAM(active_icc_levels_vccq, _ACTIVE_LVLS_VCCQ, 15);
UFS_POWER_DESC_PARAM(active_icc_levels_vccq2, _ACTIVE_LVLS_VCCQ2, 0);
UFS_POWER_DESC_PARAM(active_icc_levels_vccq2, _ACTIVE_LVLS_VCCQ2, 1);
UFS_POWER_DESC_PARAM(active_icc_levels_vccq2, _ACTIVE_LVLS_VCCQ2, 2);
UFS_POWER_DESC_PARAM(active_icc_levels_vccq2, _ACTIVE_LVLS_VCCQ2, 3);
UFS_POWER_DESC_PARAM(active_icc_levels_vccq2, _ACTIVE_LVLS_VCCQ2, 4);
UFS_POWER_DESC_PARAM(active_icc_levels_vccq2, _ACTIVE_LVLS_VCCQ2, 5);
UFS_POWER_DESC_PARAM(active_icc_levels_vccq2, _ACTIVE_LVLS_VCCQ2, 6);
UFS_POWER_DESC_PARAM(active_icc_levels_vccq2, _ACTIVE_LVLS_VCCQ2, 7);
UFS_POWER_DESC_PARAM(active_icc_levels_vccq2, _ACTIVE_LVLS_VCCQ2, 8);
UFS_POWER_DESC_PARAM(active_icc_levels_vccq2, _ACTIVE_LVLS_VCCQ2, 9);
UFS_POWER_DESC_PARAM(active_icc_levels_vccq2, _ACTIVE_LVLS_VCCQ2, 10);
UFS_POWER_DESC_PARAM(active_icc_levels_vccq2, _ACTIVE_LVLS_VCCQ2, 11);
UFS_POWER_DESC_PARAM(active_icc_levels_vccq2, _ACTIVE_LVLS_VCCQ2, 12);
UFS_POWER_DESC_PARAM(active_icc_levels_vccq2, _ACTIVE_LVLS_VCCQ2, 13);
UFS_POWER_DESC_PARAM(active_icc_levels_vccq2, _ACTIVE_LVLS_VCCQ2, 14);
UFS_POWER_DESC_PARAM(active_icc_levels_vccq2, _ACTIVE_LVLS_VCCQ2, 15);
static struct attribute *ufs_sysfs_power_descriptor[] = {
&dev_attr_active_icc_levels_vcc0.attr,
&dev_attr_active_icc_levels_vcc1.attr,
&dev_attr_active_icc_levels_vcc2.attr,
&dev_attr_active_icc_levels_vcc3.attr,
&dev_attr_active_icc_levels_vcc4.attr,
&dev_attr_active_icc_levels_vcc5.attr,
&dev_attr_active_icc_levels_vcc6.attr,
&dev_attr_active_icc_levels_vcc7.attr,
&dev_attr_active_icc_levels_vcc8.attr,
&dev_attr_active_icc_levels_vcc9.attr,
&dev_attr_active_icc_levels_vcc10.attr,
&dev_attr_active_icc_levels_vcc11.attr,
&dev_attr_active_icc_levels_vcc12.attr,
&dev_attr_active_icc_levels_vcc13.attr,
&dev_attr_active_icc_levels_vcc14.attr,
&dev_attr_active_icc_levels_vcc15.attr,
&dev_attr_active_icc_levels_vccq0.attr,
&dev_attr_active_icc_levels_vccq1.attr,
&dev_attr_active_icc_levels_vccq2.attr,
&dev_attr_active_icc_levels_vccq3.attr,
&dev_attr_active_icc_levels_vccq4.attr,
&dev_attr_active_icc_levels_vccq5.attr,
&dev_attr_active_icc_levels_vccq6.attr,
&dev_attr_active_icc_levels_vccq7.attr,
&dev_attr_active_icc_levels_vccq8.attr,
&dev_attr_active_icc_levels_vccq9.attr,
&dev_attr_active_icc_levels_vccq10.attr,
&dev_attr_active_icc_levels_vccq11.attr,
&dev_attr_active_icc_levels_vccq12.attr,
&dev_attr_active_icc_levels_vccq13.attr,
&dev_attr_active_icc_levels_vccq14.attr,
&dev_attr_active_icc_levels_vccq15.attr,
&dev_attr_active_icc_levels_vccq20.attr,
&dev_attr_active_icc_levels_vccq21.attr,
&dev_attr_active_icc_levels_vccq22.attr,
&dev_attr_active_icc_levels_vccq23.attr,
&dev_attr_active_icc_levels_vccq24.attr,
&dev_attr_active_icc_levels_vccq25.attr,
&dev_attr_active_icc_levels_vccq26.attr,
&dev_attr_active_icc_levels_vccq27.attr,
&dev_attr_active_icc_levels_vccq28.attr,
&dev_attr_active_icc_levels_vccq29.attr,
&dev_attr_active_icc_levels_vccq210.attr,
&dev_attr_active_icc_levels_vccq211.attr,
&dev_attr_active_icc_levels_vccq212.attr,
&dev_attr_active_icc_levels_vccq213.attr,
&dev_attr_active_icc_levels_vccq214.attr,
&dev_attr_active_icc_levels_vccq215.attr,
NULL,
};
static const struct attribute_group ufs_sysfs_power_descriptor_group = {
.name = "power_descriptor",
.attrs = ufs_sysfs_power_descriptor,
};
#define UFS_STRING_DESCRIPTOR(_name, _pname) \
static ssize_t _name##_show(struct device *dev, \
struct device_attribute *attr, char *buf) \
{ \
u8 index; \
struct ufs_hba *hba = dev_get_drvdata(dev); \
int ret; \
int desc_len = QUERY_DESC_MAX_SIZE; \
u8 *desc_buf; \
desc_buf = kzalloc(QUERY_DESC_MAX_SIZE, GFP_ATOMIC); \
if (!desc_buf) \
return -ENOMEM; \
ret = ufshcd_query_descriptor_retry(hba, \
UPIU_QUERY_OPCODE_READ_DESC, QUERY_DESC_IDN_DEVICE, \
0, 0, desc_buf, &desc_len); \
if (ret) { \
ret = -EINVAL; \
goto out; \
} \
index = desc_buf[DEVICE_DESC_PARAM##_pname]; \
memset(desc_buf, 0, QUERY_DESC_MAX_SIZE); \
if (ufshcd_read_string_desc(hba, index, desc_buf, \
QUERY_DESC_MAX_SIZE, true)) { \
ret = -EINVAL; \
goto out; \
} \
ret = snprintf(buf, PAGE_SIZE, "%s\n", \
desc_buf + QUERY_DESC_HDR_SIZE); \
out: \
kfree(desc_buf); \
return ret; \
} \
static DEVICE_ATTR_RO(_name)
UFS_STRING_DESCRIPTOR(manufacturer_name, _MANF_NAME);
UFS_STRING_DESCRIPTOR(product_name, _PRDCT_NAME);
UFS_STRING_DESCRIPTOR(oem_id, _OEM_ID);
UFS_STRING_DESCRIPTOR(serial_number, _SN);
UFS_STRING_DESCRIPTOR(product_revision, _PRDCT_REV);
static struct attribute *ufs_sysfs_string_descriptors[] = {
&dev_attr_manufacturer_name.attr,
&dev_attr_product_name.attr,
&dev_attr_oem_id.attr,
&dev_attr_serial_number.attr,
&dev_attr_product_revision.attr,
NULL,
};
static const struct attribute_group ufs_sysfs_string_descriptors_group = {
.name = "string_descriptors",
.attrs = ufs_sysfs_string_descriptors,
};
#define UFS_FLAG(_name, _uname) \
static ssize_t _name##_show(struct device *dev, \
struct device_attribute *attr, char *buf) \
{ \
bool flag; \
struct ufs_hba *hba = dev_get_drvdata(dev); \
if (ufshcd_query_flag(hba, UPIU_QUERY_OPCODE_READ_FLAG, \
QUERY_FLAG_IDN##_uname, &flag)) \
return -EINVAL; \
return sprintf(buf, "%s\n", flag ? "true" : "false"); \
} \
static DEVICE_ATTR_RO(_name)
UFS_FLAG(device_init, _FDEVICEINIT);
UFS_FLAG(permanent_wpe, _PERMANENT_WPE);
UFS_FLAG(power_on_wpe, _PWR_ON_WPE);
UFS_FLAG(bkops_enable, _BKOPS_EN);
UFS_FLAG(life_span_mode_enable, _LIFE_SPAN_MODE_ENABLE);
UFS_FLAG(phy_resource_removal, _FPHYRESOURCEREMOVAL);
UFS_FLAG(busy_rtc, _BUSY_RTC);
UFS_FLAG(disable_fw_update, _PERMANENTLY_DISABLE_FW_UPDATE);
static struct attribute *ufs_sysfs_device_flags[] = {
&dev_attr_device_init.attr,
&dev_attr_permanent_wpe.attr,
&dev_attr_power_on_wpe.attr,
&dev_attr_bkops_enable.attr,
&dev_attr_life_span_mode_enable.attr,
&dev_attr_phy_resource_removal.attr,
&dev_attr_busy_rtc.attr,
&dev_attr_disable_fw_update.attr,
NULL,
};
static const struct attribute_group ufs_sysfs_flags_group = {
.name = "flags",
.attrs = ufs_sysfs_device_flags,
};
#define UFS_ATTRIBUTE(_name, _uname) \
static ssize_t _name##_show(struct device *dev, \
struct device_attribute *attr, char *buf) \
{ \
struct ufs_hba *hba = dev_get_drvdata(dev); \
u32 value; \
if (ufshcd_query_attr(hba, UPIU_QUERY_OPCODE_READ_ATTR, \
QUERY_ATTR_IDN##_uname, 0, 0, &value)) \
return -EINVAL; \
return sprintf(buf, "0x%08X\n", value); \
} \
static DEVICE_ATTR_RO(_name)
UFS_ATTRIBUTE(boot_lun_enabled, _BOOT_LU_EN);
UFS_ATTRIBUTE(current_power_mode, _POWER_MODE);
UFS_ATTRIBUTE(active_icc_level, _ACTIVE_ICC_LVL);
UFS_ATTRIBUTE(ooo_data_enabled, _OOO_DATA_EN);
UFS_ATTRIBUTE(bkops_status, _BKOPS_STATUS);
UFS_ATTRIBUTE(purge_status, _PURGE_STATUS);
UFS_ATTRIBUTE(max_data_in_size, _MAX_DATA_IN);
UFS_ATTRIBUTE(max_data_out_size, _MAX_DATA_OUT);
UFS_ATTRIBUTE(reference_clock_frequency, _REF_CLK_FREQ);
UFS_ATTRIBUTE(configuration_descriptor_lock, _CONF_DESC_LOCK);
UFS_ATTRIBUTE(max_number_of_rtt, _MAX_NUM_OF_RTT);
UFS_ATTRIBUTE(exception_event_control, _EE_CONTROL);
UFS_ATTRIBUTE(exception_event_status, _EE_STATUS);
UFS_ATTRIBUTE(ffu_status, _FFU_STATUS);
UFS_ATTRIBUTE(psa_state, _PSA_STATE);
UFS_ATTRIBUTE(psa_data_size, _PSA_DATA_SIZE);
static struct attribute *ufs_sysfs_attributes[] = {
&dev_attr_boot_lun_enabled.attr,
&dev_attr_current_power_mode.attr,
&dev_attr_active_icc_level.attr,
&dev_attr_ooo_data_enabled.attr,
&dev_attr_bkops_status.attr,
&dev_attr_purge_status.attr,
&dev_attr_max_data_in_size.attr,
&dev_attr_max_data_out_size.attr,
&dev_attr_reference_clock_frequency.attr,
&dev_attr_configuration_descriptor_lock.attr,
&dev_attr_max_number_of_rtt.attr,
&dev_attr_exception_event_control.attr,
&dev_attr_exception_event_status.attr,
&dev_attr_ffu_status.attr,
&dev_attr_psa_state.attr,
&dev_attr_psa_data_size.attr,
NULL,
};
static const struct attribute_group ufs_sysfs_attributes_group = {
.name = "attributes",
.attrs = ufs_sysfs_attributes,
};
static const struct attribute_group *ufs_sysfs_groups[] = {
&ufs_sysfs_default_group,
&ufs_sysfs_device_descriptor_group,
&ufs_sysfs_interconnect_descriptor_group,
&ufs_sysfs_geometry_descriptor_group,
&ufs_sysfs_health_descriptor_group,
&ufs_sysfs_power_descriptor_group,
&ufs_sysfs_string_descriptors_group,
&ufs_sysfs_flags_group,
&ufs_sysfs_attributes_group,
NULL,
};
#define UFS_LUN_DESC_PARAM(_pname, _puname, _duname, _size) \
static ssize_t _pname##_show(struct device *dev, \
struct device_attribute *attr, char *buf) \
{ \
struct scsi_device *sdev = to_scsi_device(dev); \
struct ufs_hba *hba = shost_priv(sdev->host); \
u8 lun = ufshcd_scsi_to_upiu_lun(sdev->lun); \
if (!ufs_is_valid_unit_desc_lun(lun)) \
return -EINVAL; \
return ufs_sysfs_read_desc_param(hba, QUERY_DESC_IDN_##_duname, \
lun, _duname##_DESC_PARAM##_puname, buf, _size); \
} \
static DEVICE_ATTR_RO(_pname)
#define UFS_UNIT_DESC_PARAM(_name, _uname, _size) \
UFS_LUN_DESC_PARAM(_name, _uname, UNIT, _size)
UFS_UNIT_DESC_PARAM(boot_lun_id, _BOOT_LUN_ID, 1);
UFS_UNIT_DESC_PARAM(lun_write_protect, _LU_WR_PROTECT, 1);
UFS_UNIT_DESC_PARAM(lun_queue_depth, _LU_Q_DEPTH, 1);
UFS_UNIT_DESC_PARAM(psa_sensitive, _PSA_SENSITIVE, 1);
UFS_UNIT_DESC_PARAM(lun_memory_type, _MEM_TYPE, 1);
UFS_UNIT_DESC_PARAM(data_reliability, _DATA_RELIABILITY, 1);
UFS_UNIT_DESC_PARAM(logical_block_size, _LOGICAL_BLK_SIZE, 1);
UFS_UNIT_DESC_PARAM(logical_block_count, _LOGICAL_BLK_COUNT, 8);
UFS_UNIT_DESC_PARAM(erase_block_size, _ERASE_BLK_SIZE, 4);
UFS_UNIT_DESC_PARAM(provisioning_type, _PROVISIONING_TYPE, 1);
UFS_UNIT_DESC_PARAM(physical_memory_resourse_count, _PHY_MEM_RSRC_CNT, 8);
UFS_UNIT_DESC_PARAM(context_capabilities, _CTX_CAPABILITIES, 2);
UFS_UNIT_DESC_PARAM(large_unit_granularity, _LARGE_UNIT_SIZE_M1, 1);
static struct attribute *ufs_sysfs_unit_descriptor[] = {
&dev_attr_boot_lun_id.attr,
&dev_attr_lun_write_protect.attr,
&dev_attr_lun_queue_depth.attr,
&dev_attr_psa_sensitive.attr,
&dev_attr_lun_memory_type.attr,
&dev_attr_data_reliability.attr,
&dev_attr_logical_block_size.attr,
&dev_attr_logical_block_count.attr,
&dev_attr_erase_block_size.attr,
&dev_attr_provisioning_type.attr,
&dev_attr_physical_memory_resourse_count.attr,
&dev_attr_context_capabilities.attr,
&dev_attr_large_unit_granularity.attr,
NULL,
};
const struct attribute_group ufs_sysfs_unit_descriptor_group = {
.name = "unit_descriptor",
.attrs = ufs_sysfs_unit_descriptor,
};
static ssize_t dyn_cap_needed_attribute_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
u32 value;
struct scsi_device *sdev = to_scsi_device(dev);
struct ufs_hba *hba = shost_priv(sdev->host);
u8 lun = ufshcd_scsi_to_upiu_lun(sdev->lun);
if (ufshcd_query_attr(hba, UPIU_QUERY_OPCODE_READ_ATTR,
QUERY_ATTR_IDN_DYN_CAP_NEEDED, lun, 0, &value))
return -EINVAL;
return sprintf(buf, "0x%08X\n", value);
}
static DEVICE_ATTR_RO(dyn_cap_needed_attribute);
static struct attribute *ufs_sysfs_lun_attributes[] = {
&dev_attr_dyn_cap_needed_attribute.attr,
NULL,
};
const struct attribute_group ufs_sysfs_lun_attributes_group = {
.attrs = ufs_sysfs_lun_attributes,
};
void ufs_sysfs_add_nodes(struct device *dev)
{
int ret;
ret = sysfs_create_groups(&dev->kobj, ufs_sysfs_groups);
if (ret)
dev_err(dev,
"%s: sysfs groups creation failed (err = %d)\n",
__func__, ret);
}
void ufs_sysfs_remove_nodes(struct device *dev)
{
sysfs_remove_groups(&dev->kobj, ufs_sysfs_groups);
}
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