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scsi: ufs: Customize flush threshold for WriteBooster

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Allow flush threshold for WriteBooster to be customizable by vendors. To
achieve this, make the value a variable in struct ufs_hba_variant_params.

Also introduce UFS_WB_BUF_REMAIN_PERCENT() macro to provide a more flexible
way to specify WriteBooster available buffer values.

Link: https://lore.kernel.org/r/20200509093716.21010-4-stanley.chu@mediatek.com
Reviewed-by: Asutosh Das <asutoshd@codeaurora.org>
Signed-off-by: Stanley Chu <stanley.chu@mediatek.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Stanley Chu 2020-05-09 17:37:15 +08:00 • committed by Martin K. Petersen
commit d14734ae3a
3 changed files with 6 additions and 7 deletions
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