[dpdk-dev] [PATCH] net/mlx5: fix wrong Flow Tag decompression
Raslan Darawsheh
rasland at nvidia.com
Sun Jan 24 10:32:22 CET 2021
Hi,
> -----Original Message-----
> From: Alexander Kozyrev <akozyrev at nvidia.com>
> Sent: Thursday, January 14, 2021 11:32 PM
> To: dev at dpdk.org
> Cc: stable at dpdk.org; Raslan Darawsheh <rasland at nvidia.com>; Slava
> Ovsiienko <viacheslavo at nvidia.com>; Matan Azrad <matan at nvidia.com>
> Subject: [PATCH] net/mlx5: fix wrong Flow Tag decompression
>
> Packets can get a wrong Flow Tag on x86 architecture with the Flow Tag
> compression format (rxq_cqe_comp_en=2) enabled inside the SSE Rx burst.
> The shuffle mask that extracts a Flow Tag from the pair of compressed
> CQEs is reversed. This leads to the wrong Flow Tag assignment.
> Correct the shuffle mask to get proper bytes for a Flow Tag from miniCQEs.
>
> Fixes: 54c2d46b160 ("net/mlx5: support flow tag and packet header
> miniCQEs")
> Cc: stable at dpdk.org
>
> Signed-off-by: Alexander Kozyrev <akozyrev at nvidia.com>
> ---
Patch applied to next-net-mlx,
Kindest regards,
Raslan Darawsheh
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