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John Hurley authored
Pre-tunnel rules are TC flower and OvS rules that forward a packet to the tunnel end point where it can then pass through the network stack and be decapsulated. These are required if the tunnel end point is, say, an OvS internal port. Currently, firmware determines that a packet is in a tunnel and decaps it if it has a known destination IP and MAC address. However, this bypasses the flower pre-tunnel rule and so does not update the stats. Further to this it ignores VLANs that may exist outside of the tunnel header. Offload pre-tunnel rules to the NFP. This embeds the pre-tunnel rule into the tunnel decap process based on (firmware) mac index and VLAN. This means that decap can be carried out correctly with VLANs and that stats can be updated for all kernel rules correctly. Signed-off-by:
John Hurley <john.hurley@netronome.com> Reviewed-by:
Simon Horman <simon.horman@netronome.com> Acked-by:
Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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