On 5/8/2020 10:15 AM, Stanley Chu wrote:
Allow flush threshold for WriteBooster to be customizable by
vendors. To achieve this, make the value as a variable in struct
ufs_hba first.
Signed-off-by: Stanley Chu <stanley.chu@xxxxxxxxxxxx>
---
drivers/scsi/ufs/ufshcd.c | 6 ++++--
drivers/scsi/ufs/ufshcd.h | 1 +
2 files changed, 5 insertions(+), 2 deletions(-)
diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index cdacbe6378a1..9a0ce6550c2f 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -5301,8 +5301,8 @@ static bool ufshcd_wb_presrv_usrspc_keep_vcc_on(struct ufs_hba *hba,
cur_buf);
return false;
}
- /* Let it continue to flush when >60% full */
- if (avail_buf < UFS_WB_40_PERCENT_BUF_REMAIN)
+ /* Let it continue to flush when available buffer exceeds threshold */
+ if (avail_buf < hba->vps->wb_flush_threshold)
return true;
return false;
@@ -6839,6 +6839,7 @@ static void ufshcd_wb_probe(struct ufs_hba *hba, u8 *desc_buf)
if (!d_lu_wb_buf_alloc)
goto wb_disabled;
}
+
Is this newline needed?
return;
wb_disabled:
@@ -7462,6 +7463,7 @@ static const struct attribute_group *ufshcd_driver_groups[] = {
static struct ufs_hba_variant_params ufs_hba_vps = {
.hba_enable_delay_us = 1000,
+ .wb_flush_threshold = UFS_WB_40_PERCENT_BUF_REMAIN,
.devfreq_profile.polling_ms = 100,
.devfreq_profile.target = ufshcd_devfreq_target,
.devfreq_profile.get_dev_status = ufshcd_devfreq_get_dev_status,
diff --git a/drivers/scsi/ufs/ufshcd.h b/drivers/scsi/ufs/ufshcd.h
index f7bdf52ba8b0..e3dfb48e669e 100644
--- a/drivers/scsi/ufs/ufshcd.h
+++ b/drivers/scsi/ufs/ufshcd.h
@@ -570,6 +570,7 @@ struct ufs_hba_variant_params {
struct devfreq_dev_profile devfreq_profile;
struct devfreq_simple_ondemand_data ondemand_data;
u16 hba_enable_delay_us;
+ u32 wb_flush_threshold;
};
/**
Patch[3] & [4] may be combined into a single patch perhaps?
Patch[4] just redoes what [3] did in a different way, so might as well
just do what patch[4] does right away.
--
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