Re: [PATCH v1 3/3] scsi: ufs: Utilize Transfer Request List Completion Notification Register

From: Bean Huo
Date: Mon May 31 2021 - 13:25:54 EST


On Mon, 2021-05-24 at 01:36 -0700, Can Guo wrote:
> By reading the UTP Transfer Request List Completion Notification
> Register,
>
> which is added in UFSHCI Ver 3.0, SW can easily get the compeleted
> transfer
>
> requests. Thus, SW can get rid of host lock, which is used to
> synchronize
>
> the tr_doorbell and outstanding_reqs, on transfer requests dispatch
> and
>
> completion paths. This can further benefit random read/write
> performance.
>
>
>
> Cc: Stanley Chu <stanley.chu@xxxxxxxxxxxx>
>
> Co-developed-by: Asutosh Das <asutoshd@xxxxxxxxxxxxxx>
>
> Signed-off-by: Asutosh Das <asutoshd@xxxxxxxxxxxxxx>
>
> Signed-off-by: Can Guo <cang@xxxxxxxxxxxxxx>

Reviewed-by: Bean Huo <beanhuo@xxxxxxxxxx>