[dpdk-dev] [PATCH v2 1/2] net/mlx5: fix layer flags missing in metadata

[Matan Azrad]

From: Suanming Mou
> Metadata suffix subflow inherits the RSS needed hash_fields from the prefix
> subflow as the suffix subflow only has the tag match item unable to generate
> the full original hash_fields for RSS action.
> 
> Unfortunately, hash_fields will only be generated if flow has RSS action.
> So it means the prefix flow won't generate the hash_fields as the RSS action
> has been split to the suffix flow.
> 
> Copy the layer flags from prefix subflow to suffix subflow to help the suffix
> subflow to generate the correct hash_fields itself.
> 
> Fixes: 71e254bc0294 ("net/mlx5: split Rx flows to provide metadata copy")
> Cc: viacheslavo at mellanox.com
> Cc: stable at dpdk.org
> 
> Signed-off-by: Suanming Mou <suanmingm at mellanox.com>
Acked-by: Matan Azrad <matan at mellanox.com>