Lorenzo Bianconi <lorenzo@xxxxxxxxxx> writes: >> On Tue, 03 Jan 2023 16:19:49 +0100 Toke Høiland-Jørgensen wrote: >> > Hmm, good question! I don't think we've ever explicitly documented any >> > assumptions one way or the other. My own mental model has certainly >> > always assumed the first frag would continue to be the same size as in >> > non-multi-buf packets. >> >> Interesting! :) My mental model was closer to GRO by frags >> so the linear part would have no data, just headers. > > That is assumption as well. Right, okay, so how many headers? Only Ethernet, or all the way up to L4 (TCP/UDP)? I do seem to recall a discussion around the header/data split for TCP specifically, but I think I mentally put that down as "something people may way to do at some point in the future", which is why it hasn't made it into my own mental model (yet?) :) -Toke