From: Stanley Chu <stanley.chu@mediatek.com>
To: <linux-scsi@vger.kernel.org>, <martin.petersen@oracle.com>,
<avri.altman@wdc.com>, <alim.akhtar@samsung.com>,
<jejb@linux.ibm.com>, <asutoshd@codeaurora.org>
Cc: <beanhuo@micron.com>, <cang@codeaurora.org>,
<matthias.bgg@gmail.com>, <bvanassche@acm.org>,
<linux-mediatek@lists.infradead.org>,
<linux-arm-kernel@lists.infradead.org>,
<linux-kernel@vger.kernel.org>, <kuohong.wang@mediatek.com>,
<peter.wang@mediatek.com>, <chun-hung.wu@mediatek.com>,
<andy.teng@mediatek.com>, Stanley Chu <stanley.chu@mediatek.com>
Subject: [PATCH v1 3/4] scsi: ufs: Fix index of attributes query for WriteBooster feature
Date: Tue, 12 May 2020 18:47:49 +0800 [thread overview]
Message-ID: <20200512104750.8711-4-stanley.chu@mediatek.com> (raw)
In-Reply-To: <20200512104750.8711-1-stanley.chu@mediatek.com>
For WriteBooster feature related attributes, the index used by
query shall be LUN ID if LU Dedicated buffer mode is enabled.
Signed-off-by: Stanley Chu <stanley.chu@mediatek.com>
---
drivers/scsi/ufs/ufs-sysfs.c | 13 +++++++++++--
drivers/scsi/ufs/ufshcd.c | 16 ++++++++++------
drivers/scsi/ufs/ufshcd.h | 2 +-
3 files changed, 22 insertions(+), 9 deletions(-)
diff --git a/drivers/scsi/ufs/ufs-sysfs.c b/drivers/scsi/ufs/ufs-sysfs.c
index a0b3763e1dc2..2d71d232a69d 100644
--- a/drivers/scsi/ufs/ufs-sysfs.c
+++ b/drivers/scsi/ufs/ufs-sysfs.c
@@ -637,7 +637,7 @@ static ssize_t _name##_show(struct device *dev, \
int ret; \
struct ufs_hba *hba = dev_get_drvdata(dev); \
if (ufshcd_is_wb_flags(QUERY_FLAG_IDN##_uname)) \
- index = ufshcd_wb_get_flag_index(hba); \
+ index = ufshcd_wb_get_query_index(hba); \
pm_runtime_get_sync(hba->dev); \
ret = ufshcd_query_flag(hba, UPIU_QUERY_OPCODE_READ_FLAG, \
QUERY_FLAG_IDN##_uname, index, &flag); \
@@ -680,6 +680,12 @@ static const struct attribute_group ufs_sysfs_flags_group = {
.attrs = ufs_sysfs_device_flags,
};
+static inline bool ufshcd_is_wb_attrs(enum attr_idn idn)
+{
+ return ((idn >= QUERY_ATTR_IDN_WB_FLUSH_STATUS) &&
+ (idn <= QUERY_ATTR_IDN_CURR_WB_BUFF_SIZE));
+}
+
#define UFS_ATTRIBUTE(_name, _uname) \
static ssize_t _name##_show(struct device *dev, \
struct device_attribute *attr, char *buf) \
@@ -687,9 +693,12 @@ static ssize_t _name##_show(struct device *dev, \
struct ufs_hba *hba = dev_get_drvdata(dev); \
u32 value; \
int ret; \
+ u8 index = 0; \
+ if (ufshcd_is_wb_attrs(QUERY_ATTR_IDN##_uname)) \
+ index = ufshcd_wb_get_query_index(hba); \
pm_runtime_get_sync(hba->dev); \
ret = ufshcd_query_attr(hba, UPIU_QUERY_OPCODE_READ_ATTR, \
- QUERY_ATTR_IDN##_uname, 0, 0, &value); \
+ QUERY_ATTR_IDN##_uname, index, 0, &value); \
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 b298bdd3e697..169a3379e468 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -5212,7 +5212,7 @@ static int ufshcd_wb_ctrl(struct ufs_hba *hba, bool enable)
else
opcode = UPIU_QUERY_OPCODE_CLEAR_FLAG;
- index = ufshcd_wb_get_flag_index(hba);
+ index = ufshcd_wb_get_query_index(hba);
ret = ufshcd_query_flag_retry(hba, opcode,
QUERY_FLAG_IDN_WB_EN, index, NULL);
if (ret) {
@@ -5238,7 +5238,7 @@ static int ufshcd_wb_toggle_flush_during_h8(struct ufs_hba *hba, bool set)
else
val = UPIU_QUERY_OPCODE_CLEAR_FLAG;
- index = ufshcd_wb_get_flag_index(hba);
+ index = ufshcd_wb_get_query_index(hba);
return ufshcd_query_flag_retry(hba, val,
QUERY_FLAG_IDN_WB_BUFF_FLUSH_DURING_HIBERN8,
index, NULL);
@@ -5261,7 +5261,7 @@ static int ufshcd_wb_buf_flush_enable(struct ufs_hba *hba)
if (!ufshcd_is_wb_allowed(hba) || hba->wb_buf_flush_enabled)
return 0;
- index = ufshcd_wb_get_flag_index(hba);
+ index = ufshcd_wb_get_query_index(hba);
ret = ufshcd_query_flag_retry(hba, UPIU_QUERY_OPCODE_SET_FLAG,
QUERY_FLAG_IDN_WB_BUFF_FLUSH_EN,
index, NULL);
@@ -5283,7 +5283,7 @@ static int ufshcd_wb_buf_flush_disable(struct ufs_hba *hba)
if (!ufshcd_is_wb_allowed(hba) || !hba->wb_buf_flush_enabled)
return 0;
- index = ufshcd_wb_get_flag_index(hba);
+ index = ufshcd_wb_get_query_index(hba);
ret = ufshcd_query_flag_retry(hba, UPIU_QUERY_OPCODE_CLEAR_FLAG,
QUERY_FLAG_IDN_WB_BUFF_FLUSH_EN,
index, NULL);
@@ -5303,10 +5303,12 @@ static bool ufshcd_wb_presrv_usrspc_keep_vcc_on(struct ufs_hba *hba,
{
u32 cur_buf;
int ret;
+ u8 index;
+ index = ufshcd_wb_get_query_index(hba);
ret = ufshcd_query_attr_retry(hba, UPIU_QUERY_OPCODE_READ_ATTR,
QUERY_ATTR_IDN_CURR_WB_BUFF_SIZE,
- 0, 0, &cur_buf);
+ index, 0, &cur_buf);
if (ret) {
dev_err(hba->dev, "%s dCurWriteBoosterBufferSize read failed %d\n",
__func__, ret);
@@ -5329,6 +5331,7 @@ static bool ufshcd_wb_keep_vcc_on(struct ufs_hba *hba)
{
int ret;
u32 avail_buf;
+ u8 index;
if (!ufshcd_is_wb_allowed(hba))
return false;
@@ -5343,9 +5346,10 @@ static bool ufshcd_wb_keep_vcc_on(struct ufs_hba *hba)
* buffer (dCurrentWriteBoosterBufferSize). There's no point in
* keeping vcc on when current buffer is empty.
*/
+ index = ufshcd_wb_get_query_index(hba);
ret = ufshcd_query_attr_retry(hba, UPIU_QUERY_OPCODE_READ_ATTR,
QUERY_ATTR_IDN_AVAIL_WB_BUFF_SIZE,
- 0, 0, &avail_buf);
+ index, 0, &avail_buf);
if (ret) {
dev_warn(hba->dev, "%s dAvailableWriteBoosterBufferSize read failed %d\n",
__func__, ret);
diff --git a/drivers/scsi/ufs/ufshcd.h b/drivers/scsi/ufs/ufshcd.h
index 23a434c03c2a..ab0d180dad6c 100644
--- a/drivers/scsi/ufs/ufshcd.h
+++ b/drivers/scsi/ufs/ufshcd.h
@@ -861,7 +861,7 @@ static inline bool ufshcd_keep_autobkops_enabled_except_suspend(
return hba->caps & UFSHCD_CAP_KEEP_AUTO_BKOPS_ENABLED_EXCEPT_SUSPEND;
}
-static inline u8 ufshcd_wb_get_flag_index(struct ufs_hba *hba)
+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)
return hba->dev_info.wb_dedicated_lu;
--
2.18.0
next prev parent reply other threads:[~2020-05-12 10:48 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-12 10:47 [PATCH v1 0/4] scsi: ufs: Fix WriteBooster and cleanup UFS driver Stanley Chu
2020-05-12 10:47 ` [PATCH v1 1/4] scsi: ufs: Remove unnecessary memset for dev_info Stanley Chu
2020-05-12 10:47 ` [PATCH v1 2/4] scsi: ufs: Allow WriteBooster on UFS 2.2 devices Stanley Chu
2020-05-12 10:47 ` Stanley Chu [this message]
2020-05-12 10:47 ` [PATCH v1 4/4] scsi: ufs: Fix WriteBooster flush during runtime suspend Stanley Chu
2020-05-12 17:04 ` Asutosh Das (asd)
2020-05-13 2:21 ` Stanley Chu
2020-05-13 19:31 ` Asutosh Das (asd)
2020-05-14 2:23 ` Stanley Chu
2020-05-14 14:49 ` Stanley Chu
2020-05-14 16:59 ` Asutosh Das (asd)
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