[dpdk-dev] [PATCH] net/mlx5: fix redundant flow after RSS expansion

[Matan Azrad]

From: Xiaoyu Min
> When RSS expand, if there is no expansion happened but completion happened
> because user only input next protocol field instead of item i.e, ether type ==
> 0x8100 instead of VLAN, an extra flow is created with missing item in order to
> filter traffic strictly.
> 
> However, after [1] and [2] the rte_flow_item_eth itself is enough to filter out
> VLAN traffic, the VLAN item is not needed.
> 
> This redundant flow will cause faiure in some scenarios on group 0 due to they
> are the same FTE.
> 
> Fixes: fc2dd8dd492f ("ethdev: fix expand RSS flows")
> Cc: stable at dpdk.org
> 
> [1]:
> commit 09315fc83861 ("ethdev: add VLAN attributes to ethernet and VLAN
> items")
> 
> [2]:
> commit 86b59a1af671 ("net/mlx5: support VLAN matching fields")
> 
> Signed-off-by: Xiaoyu Min <jackmin at nvidia.com>
Acked-by: Matan Azrad <matan at nvidia.com>