This series is based on the exceptional generic zerocopy xmit logics initially introduced by Xuan Zhuo. It extends it the way that it could cover all the sane drivers, not only the ones that are capable of xmitting skbs with no linear space. The first patch is a random while-we-are-here improvement over full-copy path, and the second is the main course. See the individual commit messages for the details. The original (full-zerocopy) path is still here and still generally faster, but for now it seems like virtio_net will remain the only user of it, at least for a considerable period of time. Alexander Lobakin (2): xsk: speed-up generic full-copy xmit xsk: introduce generic almost-zerocopy xmit net/xdp/xsk.c | 33 +++++++++++++++++++++++---------- 1 file changed, 23 insertions(+), 10 deletions(-) -- Well, this is untested. I currently don't have an access to my setup and is bound by moving to another country, but as I don't know for sure at the moment when I'll get back to work on the kernel next time, I found it worthy to publish this now -- if any further changes will be required when I already will be out-of-sight, maybe someone could carry on to make a another revision and so on (I'm still here for any questions, comments, reviews and improvements till the end of this week). But this *should* work with all the sane drivers. If a particular one won't handle this, it's likely ill. -- 2.31.1
