[PATCH] net/mlx5: check compressed CQE opcode for an error

[Matan Azrad]

From: Alexander Kozyrev
> The CQE opcode is never checked for a compressed CQE in the vectorized Rx
> burst routines. It is assumed that compressed CQEs are always valid and
> skipped error checking.
> 
> This is obviously not the case and error CQEs may be compressed together as
> well. Need to check for the MLX5_CQE_RESP_ERR opcode and mark all the
> packets as bad ones in the compression session if it is there.
> 
> Note that this issue is not applicable to the scalar Rx burst.
> 
> Fixes: 6cb559d67b ("net/mlx5: add vectorized Rx/Tx burst for x86")
> Cc: stable at dpdk.org
> 
> Signed-off-by: Alexander Kozyrev <akozyrev at nvidia.com>
Acked-by: Matan Azrad <matan at nvidia.com>