On Sat, Nov 21, 2020 at 04:01:55PM -0800, Jakub Kicinski wrote: > On Fri, 20 Nov 2020 15:03:34 -0800 Saeed Mahameed wrote: > > From: Eli Cohen <e...@mellanox.com> > > > > Add a new namespace type to the NIC RX root namespace to allow for > > inserting VDPA rules before regular NIC but after bypass, thus allowing > > DPDK to have precedence in packet processing. > > How does DPDK and VDPA relate in this context?
mlx5 steering is hierarchical and defines precedence amongst namespaces. Up till now, the VDPA implementation would insert a rule into the MLX5_FLOW_NAMESPACE_BYPASS hierarchy which is used by DPDK thus taking all the incoming traffic. The MLX5_FLOW_NAMESPACE_VDPA hirerachy comes after MLX5_FLOW_NAMESPACE_BYPASS.
