[dpdk-stable] [dpdk-dev] [PATCH 1/2] net/mlx5: fix Rx CQ doorbell synchronization on aarch64
Raslan Darawsheh
rasland at mellanox.com
Thu Sep 12 10:29:41 CEST 2019
Hi,
> -----Original Message-----
> From: dev <dev-bounces at dpdk.org> On Behalf Of Phil Yang
> Sent: Thursday, September 5, 2019 1:55 PM
> To: Yongseok Koh <yskoh at mellanox.com>; Slava Ovsiienko
> <viacheslavo at mellanox.com>; Matan Azrad <matan at mellanox.com>; Nélio
> Laranjeiro <nelio.laranjeiro at 6wind.com>; dev at dpdk.org
> Cc: Thomas Monjalon <thomas at monjalon.net>; jerinj at marvell.com;
> Honnappa.Nagarahalli at arm.com; gavin.hu at arm.com; nd at arm.com;
> stable at dpdk.org
> Subject: [dpdk-dev] [PATCH 1/2] net/mlx5: fix Rx CQ doorbell
> synchronization on aarch64
>
> The Rx completion queue doorbell field needs to be updated after
> the last CQE decompressed. For the weaker memory model processors,
> the compiler barrier is not sufficient to guarantee the order of
> these operations, so use the coherent I/O memory barrier to make
> sure these fields are updated in order.
>
> Fixes: 570acdb1da8a ("net/mlx5: add vectorized Rx/Tx burst for ARM")
> Cc: stable at dpdk.org
>
> Suggested-by: Gavin Hu <gavin.hu at arm.com>
> Signed-off-by: Phil Yang <phil.yang at arm.com>
> Reviewed-by: Gavin Hu <gavin.hu at arm.com>
> ---
Patch applied to next-net-mlx,
Kindest regards,
Raslan Darawsheh
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