On Fri, 5 Jul 2024 16:14:04 +0200, Michal Kubiak <michal.kubiak@xxxxxxxxx> wrote: > On Fri, Jul 05, 2024 at 03:37:24PM +0800, Xuan Zhuo wrote: > > v6: > > 1. start from supporting the rx zerocopy > > > > v5: > > 1. fix the comments of last version > > http://lore.kernel.org/all/20240611114147.31320-1-xuanzhuo@xxxxxxxxxxxxxxxxx > > v4: > > 1. remove the commits that introduce the independent directory > > 2. remove the supporting for the rx merge mode (for limit 15 > > commits of net-next). Let's start with the small mode. > > 3. merge some commits and remove some not important commits > > > > ## AF_XDP > > > > XDP socket(AF_XDP) is an excellent bypass kernel network framework. The zero > > copy feature of xsk (XDP socket) needs to be supported by the driver. The > > performance of zero copy is very good. mlx5 and intel ixgbe already support > > this feature, This patch set allows virtio-net to support xsk's zerocopy xmit > > feature. > > > > At present, we have completed some preparation: > > > > 1. vq-reset (virtio spec and kernel code) > > 2. virtio-core premapped dma > > 3. virtio-net xdp refactor > > > > So it is time for Virtio-Net to complete the support for the XDP Socket > > Zerocopy. > > > > > > After taking a look at this series I haven't found adding > NETDEV_XDP_ACT_XSK_ZEROCOPY flag to netdev->xdp_features. > Is it intentional or just an oversight? Because there are too many commits, the work of virtio net supporting af-xdp is split to rx part and tx part. This patch set is for rx part. The flags will be update after tx part. Thanks. > > Thanks, > Michal
