[PATCH v8 5/8] scsi: ufs: add "index" in parameter list of ufshcd_query_flag()

Stanley Chu
2020-05-08T08:01:49Z

For preparation of LU Dedicated buffer mode support on WriteBooster
feature, "index" parameter shall be added and allowed to be specified
by callers.

Signed-off-by: Stanley Chu <stanley.chu@mediatek.com>
Reviewed-by: Bean Huo <beanhuo@micron.com>
Reviewed-by: Avri Altman <avri.altman@wdc.com>
Reviewed-by: Can Guo <cang@codeaurora.org>
---
drivers/scsi/ufs/ufs-sysfs.c | 2 +-
drivers/scsi/ufs/ufshcd.c | 28 +++++++++++++++-------------
drivers/scsi/ufs/ufshcd.h | 2 +-
3 files changed, 17 insertions(+), 15 deletions(-)

diff --git a/drivers/scsi/ufs/ufs-sysfs.c b/drivers/scsi/ufs/ufs-sysfs.c
index 93484408bc40..b86b6a40d7e6 100644
--- a/drivers/scsi/ufs/ufs-sysfs.c
+++ b/drivers/scsi/ufs/ufs-sysfs.c
@@ -631,7 +631,7 @@ static ssize_t _name##_show(struct device *dev, \
struct ufs_hba *hba = dev_get_drvdata(dev); \
pm_runtime_get_sync(hba->dev); \
ret = ufshcd_query_flag(hba, UPIU_QUERY_OPCODE_READ_FLAG, \
- QUERY_FLAG_IDN##_uname, &flag); \
+ QUERY_FLAG_IDN##_uname, 0, &flag); \
pm_runtime_put_sync(hba->dev); \
if (ret) \
return -EINVAL; \
diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index c0b2cec5dcd8..4053d24eaafc 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -2782,13 +2782,13 @@ static inline void ufshcd_init_query(struct ufs_hba *hba,
}

static int ufshcd_query_flag_retry(struct ufs_hba *hba,
- enum query_opcode opcode, enum flag_idn idn, bool *flag_res)
+ enum query_opcode opcode, enum flag_idn idn, u8 index, bool *flag_res)
{
int ret;
int retries;

for (retries = 0; retries < QUERY_REQ_RETRIES; retries++) {
- ret = ufshcd_query_flag(hba, opcode, idn, flag_res);
+ ret = ufshcd_query_flag(hba, opcode, idn, index, flag_res);
if (ret)
dev_dbg(hba->dev,
"%s: failed with error %d, retries %d\n",
@@ -2809,16 +2809,17 @@ static int ufshcd_query_flag_retry(struct ufs_hba *hba,
* @hba: per-adapter instance
* @opcode: flag query to perform
* @idn: flag idn to access
+ * @index: flag index to access
* @flag_res: the flag value after the query request completes
*
* Returns 0 for success, non-zero in case of failure
*/
int ufshcd_query_flag(struct ufs_hba *hba, enum query_opcode opcode,
- enum flag_idn idn, bool *flag_res)
+ enum flag_idn idn, u8 index, bool *flag_res)
{
struct ufs_query_req *request = NULL;
struct ufs_query_res *response = NULL;
- int err, index = 0, selector = 0;
+ int err, selector = 0;
int timeout = QUERY_REQ_TIMEOUT;

BUG_ON(!hba);
@@ -4175,7 +4176,7 @@ static int ufshcd_complete_dev_init(struct ufs_hba *hba)
bool flag_res = true;

err = ufshcd_query_flag_retry(hba, UPIU_QUERY_OPCODE_SET_FLAG,
- QUERY_FLAG_IDN_FDEVICEINIT, NULL);
+ QUERY_FLAG_IDN_FDEVICEINIT, 0, NULL);
if (err) {
dev_err(hba->dev,
"%s setting fDeviceInit flag failed with error %d\n",
@@ -4186,7 +4187,7 @@ static int ufshcd_complete_dev_init(struct ufs_hba *hba)
/* poll for max. 1000 iterations for fDeviceInit flag to clear */
for (i = 0; i < 1000 && !err && flag_res; i++)
err = ufshcd_query_flag_retry(hba, UPIU_QUERY_OPCODE_READ_FLAG,
- QUERY_FLAG_IDN_FDEVICEINIT, &flag_res);
+ QUERY_FLAG_IDN_FDEVICEINIT, 0, &flag_res);

if (err)
dev_err(hba->dev,
@@ -5001,7 +5002,7 @@ static int ufshcd_enable_auto_bkops(struct ufs_hba *hba)
goto out;

err = ufshcd_query_flag_retry(hba, UPIU_QUERY_OPCODE_SET_FLAG,
- QUERY_FLAG_IDN_BKOPS_EN, NULL);
+ QUERY_FLAG_IDN_BKOPS_EN, 0, NULL);
if (err) {
dev_err(hba->dev, "%s: failed to enable bkops %d\n",
__func__, err);
@@ -5051,7 +5052,7 @@ static int ufshcd_disable_auto_bkops(struct ufs_hba *hba)
}

err = ufshcd_query_flag_retry(hba, UPIU_QUERY_OPCODE_CLEAR_FLAG,
- QUERY_FLAG_IDN_BKOPS_EN, NULL);
+ QUERY_FLAG_IDN_BKOPS_EN, 0, NULL);
if (err) {
dev_err(hba->dev, "%s: failed to disable bkops %d\n",
__func__, err);
@@ -5217,7 +5218,7 @@ static int ufshcd_wb_ctrl(struct ufs_hba *hba, bool enable)
opcode = UPIU_QUERY_OPCODE_CLEAR_FLAG;

ret = ufshcd_query_flag_retry(hba, opcode,
- QUERY_FLAG_IDN_WB_EN, NULL);
+ QUERY_FLAG_IDN_WB_EN, 0, NULL);
if (ret) {
dev_err(hba->dev, "%s write booster %s failed %d\n",
__func__, enable ? "enable" : "disable", ret);
@@ -5241,7 +5242,7 @@ static int ufshcd_wb_toggle_flush_during_h8(struct ufs_hba *hba, bool set)
val = UPIU_QUERY_OPCODE_CLEAR_FLAG;

return ufshcd_query_flag_retry(hba, val,
- QUERY_FLAG_IDN_WB_BUFF_FLUSH_DURING_HIBERN8,
+ QUERY_FLAG_IDN_WB_BUFF_FLUSH_DURING_HIBERN8, 0,
NULL);
}

@@ -5262,7 +5263,8 @@ static int ufshcd_wb_buf_flush_enable(struct ufs_hba *hba)
return 0;

ret = ufshcd_query_flag_retry(hba, UPIU_QUERY_OPCODE_SET_FLAG,
- QUERY_FLAG_IDN_WB_BUFF_FLUSH_EN, NULL);
+ QUERY_FLAG_IDN_WB_BUFF_FLUSH_EN,
+ 0, NULL);
if (ret)
dev_err(hba->dev, "%s WB - buf flush enable failed %d\n",
__func__, ret);
@@ -5281,7 +5283,7 @@ static int ufshcd_wb_buf_flush_disable(struct ufs_hba *hba)
return 0;

ret = ufshcd_query_flag_retry(hba, UPIU_QUERY_OPCODE_CLEAR_FLAG,
- QUERY_FLAG_IDN_WB_BUFF_FLUSH_EN, NULL);
+ QUERY_FLAG_IDN_WB_BUFF_FLUSH_EN, 0, NULL);
if (ret) {
dev_warn(hba->dev, "%s: WB - buf flush disable failed %d\n",
__func__, ret);
@@ -7277,7 +7279,7 @@ static int ufshcd_device_params_init(struct ufs_hba *hba)
ufshcd_get_ref_clk_gating_wait(hba);

if (!ufshcd_query_flag_retry(hba, UPIU_QUERY_OPCODE_READ_FLAG,
- QUERY_FLAG_IDN_PWR_ON_WPE, &flag))
+ QUERY_FLAG_IDN_PWR_ON_WPE, 0, &flag))
hba->dev_info.f_power_on_wp_en = flag;

/* Probe maximum power mode co-supported by both UFS host and device */
diff --git a/drivers/scsi/ufs/ufshcd.h b/drivers/scsi/ufs/ufshcd.h
index 4d296acadd6f..8262a48eb9eb 100644
--- a/drivers/scsi/ufs/ufshcd.h
+++ b/drivers/scsi/ufs/ufshcd.h
@@ -948,7 +948,7 @@ int ufshcd_read_desc_param(struct ufs_hba *hba,
int ufshcd_query_attr(struct ufs_hba *hba, enum query_opcode opcode,
enum attr_idn idn, u8 index, u8 selector, u32 *attr_val);
int ufshcd_query_flag(struct ufs_hba *hba, enum query_opcode opcode,
- enum flag_idn idn, bool *flag_res);
+ enum flag_idn idn, u8 index, bool *flag_res);

void ufshcd_auto_hibern8_enable(struct ufs_hba *hba);
void ufshcd_auto_hibern8_update(struct ufs_hba *hba, u32 ahit);
--
2.18.0