Rx packet padding is supposed to be set by an environment variable -
MLX5_PMD_ENABLE_PADDING, but it has been missing for some time by mistake.
Rather than using such a variable, a PMD parameter (rxq_pkt_pad_en) is
added instead.
Fixes: a1366b1a2be3 ("net/mlx5: add reference counter on DPDK Rx queues")
Cc: stable@dpdk.org
Signed-off-by: Yongseok Koh <yskoh@mellanox.com>
Reviewed-by: Erez Ferber <erezf@mellanox.com>
Acked-by: Shahaf Shuler <shahafs@mellanox.com>