> Disable the block layer fair tag sharing algorithm because it
> significantly reduces performance of UFS devices with a maximum queue
> depth of 32.
>
> Cc: Christoph Hellwig <hch@xxxxxx>
> Cc: Martin K. Petersen <martin.petersen@xxxxxxxxxx>
> Cc: Ming Lei <ming.lei@xxxxxxxxxx>
> Cc: Keith Busch <kbusch@xxxxxxxxxx>
> Cc: Damien Le Moal <damien.lemoal@xxxxxxxxxxxxxxxxxx>
> Cc: Yu Kuai <yukuai1@xxxxxxxxxxxxxxx>
> Cc: Ed Tsai <ed.tsai@xxxxxxxxxxxx>
> Signed-off-by: Bart Van Assche <bvanassche@xxxxxxx>
Reviewed-by: Avri Altman <avri.altman@xxxxxxx>
> ---
> drivers/ufs/core/ufshcd.c | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/drivers/ufs/core/ufshcd.c b/drivers/ufs/core/ufshcd.c
> index c2df07545f96..ed04d1263e02 100644
> --- a/drivers/ufs/core/ufshcd.c
> +++ b/drivers/ufs/core/ufshcd.c
> @@ -8866,6 +8866,7 @@ static const struct scsi_host_template
> ufshcd_driver_template = {
> .max_host_blocked = 1,
> .track_queue_depth = 1,
> .skip_settle_delay = 1,
> + .disable_fair_tag_sharing = 1,
> .sdev_groups = ufshcd_driver_groups,
> .rpm_autosuspend_delay = RPM_AUTOSUSPEND_DELAY_MS,
> };
