From: Simon Horman <simon.hor...@netronome.com> Date: Mon, 15 Apr 2019 16:55:52 +0200
> John Hurley says, > > These patches deal with 'implicit recirculation' on the NFP. This is a > firmware feature whereby a packet egresses to an 'internal' port meaning > that it will recirculate back to the header extract phase with the > 'internal' port now marked as its ingress port. This internal port can > then be matched on by another rule. This process simulates how OvS > datapath outputs to an internal port. The FW traces the packet's > recirculation route and sends a 'merge hint' to the driver telling it > which flows it matched against. The driver can then decide if these flows > can be merged to a single rule and offloaded. > > The patches deal with the following issues: > > - assigning/freeing IDs to/from each of these new internal ports > - offloading rules that match on internal ports > - offloading neighbour table entries whose egress port is internal > - handling fallback traffic with an internal port as ingress > - using merge hints to create 'faster path' flows and tracking stats etc. Series applied, thanks Simon.
