On Wed, Jul 25, 2018 at 11:53:45AM +0200, Gauvain Roussel-Tarbouriech wrote: > Subject: > > Hello Netdev, > > I am working on WireGuard as part of Google Summer of Code and Jason and > I are working on adding GRO to WireGuard, on the udp_tunnel side of > things. The goal is to inform udp_tunnel’s gro_receive that certain > packets are part of the same flow. Then sometime later, we’d like to > have a list of those same-flow packets appear in gro_complete. As far as > I can tell, the API seems well suited for merging packets in > gro_receive, such that gro_complete only then gets one single merged > packet. However, we need to receive the entire list of same-flow packets > in gro_complete, unmerged. Is this possible with the present APIs?
We recently posted a patchset that does this GRO packet chaining. Not sure if this is exactly what you need, but you can have a look here: https://www.spinics.net/lists/netdev/msg508093.html This is implemented as a part of a forward fastpath, but could be also moved generic code if needed.
