From: John Hurley <john.hur...@netronome.com> Date: Sun, 4 Aug 2019 16:09:02 +0100
> This patchset deals with tunnel encap and decap when the end-point IP > address is on an internal port (for example and OvS VLAN port). Tunnel > encap without VLAN is already supported in the NFP driver. This patchset > extends that to include a push VLAN along with tunnel header push. > > Patches 1-4 extend the flow_offload IR API to include actions that use > skbedit to set the ptype of an SKB and that send a packet to port ingress > from the act_mirred module. Such actions are used in flower rules that > forward tunnel packets to internal ports where they can be decapsulated. > OvS and its TC API is an example of a user-space app that produces such > rules. > > Patch 5 modifies the encap offload code to allow the pushing of a VLAN > header after a tunnel header push. > > Patches 6-10 deal with tunnel decap when the end-point is on an internal > port. They detect 'pre-tunnel rules' which do not deal with tunnels > themselves but, rather, forward packets to internal ports where they > can be decapped if required. Such rules are offloaded to a table in HW > along with an indication of whether packets need to be passed to this > table of not (based on their destination MAC address). Matching against > this table prior to decapsulation in HW allows the correct parsing and > handling of outer VLANs on tunnelled packets and the correct updating of > stats for said 'pre-tunnel' rules. Series applied, thanks John.
