Re: [PATCH v5 5/7] scsi: ufs: Group UFS WB related flags to struct ufs_dev_info

Can Guo <cang@xxxxxxxxxxxxxx> · Tue, 22 Dec 2020 14:14:46 +0800

On 2020-12-16 07:05, Bean Huo wrote:
From: Bean Huo <beanhuo@xxxxxxxxxx>

UFS device-related flags should be grouped in ufs_dev_info. Take
wb_enabled and wb_buf_flush_enabled out from the struct ufs_hba,
group them to struct ufs_dev_info, and align the names of the structure
members vertically.


Reviewed-by: Can Guo <cang@xxxxxxxxxxxxxx>

Signed-off-by: Bean Huo <beanhuo@xxxxxxxxxx>
---
 drivers/scsi/ufs/ufs-sysfs.c |  2 +-
 drivers/scsi/ufs/ufs.h       | 27 ++++++++++++++++-----------
 drivers/scsi/ufs/ufshcd.c    | 21 ++++++++++-----------
 drivers/scsi/ufs/ufshcd.h    |  4 +---
 4 files changed, 28 insertions(+), 26 deletions(-)

diff --git a/drivers/scsi/ufs/ufs-sysfs.c 
b/drivers/scsi/ufs/ufs-sysfs.c
index f3ca3d6b82c4..9a9acc722a37 100644
--- a/drivers/scsi/ufs/ufs-sysfs.c
+++ b/drivers/scsi/ufs/ufs-sysfs.c
@@ -194,7 +194,7 @@ static ssize_t wb_on_show(struct device *dev,
struct device_attribute *attr,
 {
 	struct ufs_hba *hba = dev_get_drvdata(dev);

-	return sysfs_emit(buf, "%d\n", hba->wb_enabled);
+	return sysfs_emit(buf, "%d\n", hba->dev_info.wb_enabled);
 }

 static ssize_t wb_on_store(struct device *dev, struct device_attribute 
*attr,
diff --git a/drivers/scsi/ufs/ufs.h b/drivers/scsi/ufs/ufs.h
index a789e074ae3f..ec74cf360b1f 100644
--- a/drivers/scsi/ufs/ufs.h
+++ b/drivers/scsi/ufs/ufs.h
@@ -527,20 +527,25 @@ struct ufs_vreg_info {
 };

 struct ufs_dev_info {
-	bool f_power_on_wp_en;
+	bool	f_power_on_wp_en;
 	/* Keeps information if any of the LU is power on write protected */
-	bool is_lu_power_on_wp;
+	bool	is_lu_power_on_wp;
 	/* Maximum number of general LU supported by the UFS device */
-	u8 max_lu_supported;
-	u8 wb_dedicated_lu;
-	u16 wmanufacturerid;
+	u8	max_lu_supported;
+	u16	wmanufacturerid;
 	/*UFS device Product Name */
-	u8 *model;
-	u16 wspecversion;
-	u32 clk_gating_wait_us;
-	u8 b_wb_buffer_type;
-	bool b_rpm_dev_flush_capable;
-	u8 b_presrv_uspc_en;
+	u8	*model;
+	u16	wspecversion;
+	u32	clk_gating_wait_us;
+
+	/* UFS WB related flags */
+	bool    wb_enabled;
+	bool    wb_buf_flush_enabled;
+	u8	wb_dedicated_lu;
+	u8      wb_buffer_type;
+
+	bool	b_rpm_dev_flush_capable;
+	u8	b_presrv_uspc_en;
 };

 /**
diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index 5f08f4a59a17..466a85051d54 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -589,8 +589,8 @@ static void ufshcd_device_reset(struct ufs_hba 
*hba)
 	if (!err) {
 		ufshcd_set_ufs_dev_active(hba);
 		if (ufshcd_is_wb_allowed(hba)) {
-			hba->wb_enabled = false;
-			hba->wb_buf_flush_enabled = false;
+			hba->dev_info.wb_enabled = false;
+			hba->dev_info.wb_buf_flush_enabled = false;
 		}
 	}
 	if (err != -EOPNOTSUPP)
@@ -5359,7 +5359,7 @@ int ufshcd_wb_ctrl(struct ufs_hba *hba, bool 
enable)
 	if (!ufshcd_is_wb_allowed(hba))
 		return 0;

-	if (!(enable ^ hba->wb_enabled))
+	if (!(enable ^ hba->dev_info.wb_enabled))
 		return 0;
 	if (enable)
 		opcode = UPIU_QUERY_OPCODE_SET_FLAG;
@@ -5375,7 +5375,7 @@ int ufshcd_wb_ctrl(struct ufs_hba *hba, bool 
enable)
 		return ret;
 	}

-	hba->wb_enabled = enable;
+	hba->dev_info.wb_enabled = enable;
 	dev_dbg(hba->dev, "%s write booster %s %d\n",
 			__func__, enable ? "enable" : "disable", ret);

@@ -5415,7 +5415,7 @@ static int ufshcd_wb_buf_flush_enable(struct 
ufs_hba *hba)
 	int ret;
 	u8 index;

-	if (!ufshcd_is_wb_allowed(hba) || hba->wb_buf_flush_enabled)
+	if (!ufshcd_is_wb_allowed(hba) || hba->dev_info.wb_buf_flush_enabled)
 		return 0;

 	index = ufshcd_wb_get_query_index(hba);
@@ -5426,7 +5426,7 @@ static int ufshcd_wb_buf_flush_enable(struct 
ufs_hba *hba)
 		dev_err(hba->dev, "%s WB - buf flush enable failed %d\n",
 			__func__, ret);
 	else
-		hba->wb_buf_flush_enabled = true;
+		hba->dev_info.wb_buf_flush_enabled = true;

 	dev_dbg(hba->dev, "WB - Flush enabled: %d\n", ret);
 	return ret;
@@ -5437,7 +5437,7 @@ static int ufshcd_wb_buf_flush_disable(struct
ufs_hba *hba)
 	int ret;
 	u8 index;

-	if (!ufshcd_is_wb_allowed(hba) || !hba->wb_buf_flush_enabled)
+	if (!ufshcd_is_wb_allowed(hba) || 
!hba->dev_info.wb_buf_flush_enabled)
 		return 0;

 	index = ufshcd_wb_get_query_index(hba);
@@ -5448,7 +5448,7 @@ static int ufshcd_wb_buf_flush_disable(struct
ufs_hba *hba)
 		dev_warn(hba->dev, "%s: WB - buf flush disable failed %d\n",
 			 __func__, ret);
 	} else {
-		hba->wb_buf_flush_enabled = false;
+		hba->dev_info.wb_buf_flush_enabled = false;
 		dev_dbg(hba->dev, "WB - Flush disabled: %d\n", ret);
 	}

@@ -7236,13 +7236,12 @@ static void ufshcd_wb_probe(struct ufs_hba
*hba, u8 *desc_buf)
 	 * says, in dedicated wb buffer mode, a max of 1 lun would have wb
 	 * buffer configured.
 	 */
-	dev_info->b_wb_buffer_type =
-		desc_buf[DEVICE_DESC_PARAM_WB_TYPE];
+	dev_info->wb_buffer_type = desc_buf[DEVICE_DESC_PARAM_WB_TYPE];

 	dev_info->b_presrv_uspc_en =
 		desc_buf[DEVICE_DESC_PARAM_WB_PRESRV_USRSPC_EN];

-	if (dev_info->b_wb_buffer_type == WB_BUF_MODE_SHARED) {
+	if (dev_info->wb_buffer_type == WB_BUF_MODE_SHARED) {
 		if (!get_unaligned_be32(desc_buf +
 				   DEVICE_DESC_PARAM_WB_SHARED_ALLOC_UNITS))
 			goto wb_disabled;
diff --git a/drivers/scsi/ufs/ufshcd.h b/drivers/scsi/ufs/ufshcd.h
index 2a97006a2c93..ee97068158e2 100644
--- a/drivers/scsi/ufs/ufshcd.h
+++ b/drivers/scsi/ufs/ufshcd.h
@@ -805,8 +805,6 @@ struct ufs_hba {

 	struct device		bsg_dev;
 	struct request_queue	*bsg_queue;
-	bool wb_buf_flush_enabled;
-	bool wb_enabled;
 	struct delayed_work rpm_dev_flush_recheck_work;

 #ifdef CONFIG_SCSI_UFS_CRYPTO
@@ -946,7 +944,7 @@ static inline bool
ufshcd_keep_autobkops_enabled_except_suspend(

 static inline u8 ufshcd_wb_get_query_index(struct ufs_hba *hba)
 {
-	if (hba->dev_info.b_wb_buffer_type == WB_BUF_MODE_LU_DEDICATED)
+	if (hba->dev_info.wb_buffer_type == WB_BUF_MODE_LU_DEDICATED)
 		return hba->dev_info.wb_dedicated_lu;
 	return 0;
 }






