On Fri, Jun 18, 2021 at 2:35 AM Stefano Garzarella <sgarzare@xxxxxxxxxx> wrote: > > On Wed, Jun 09, 2021 at 11:24:52PM +0000, Jiang Wang wrote: > >This patchset implements support of SOCK_DGRAM for virtio > >transport. > > > >Datagram sockets are connectionless and unreliable. To avoid unfair contention > >with stream and other sockets, add two more virtqueues and > >a new feature bit to indicate if those two new queues exist or not. > > > >Dgram does not use the existing credit update mechanism for > >stream sockets. When sending from the guest/driver, sending packets > >synchronously, so the sender will get an error when the virtqueue is full. > >When sending from the host/device, send packets asynchronously > >because the descriptor memory belongs to the corresponding QEMU > >process. > > > >The virtio spec patch is here: > >https://www.spinics.net/lists/linux-virtualization/msg50027.html > > > >For those who prefer git repo, here is the link for the linux kernel： > >https://github.com/Jiang1155/linux/tree/vsock-dgram-v1 > > > >qemu patch link: > >https://github.com/Jiang1155/qemu/tree/vsock-dgram-v1 > > > > > >To do: > >1. use skb when receiving packets > >2. support multiple transport > >3. support mergeable rx buffer > > Jiang, I'll do a fast review, but I think is better to rebase on > net-next since SEQPACKET support is now merged. > > Please also run ./scripts/checkpatch.pl, there are a lot of issues. > > I'll leave some simple comments in the patches, but I prefer to do a > deep review after the rebase and the dynamic handling of DGRAM. Hi Stefano, Sure. I will rebase and add dynamic handling of DGRAM. I run checkpatch.pl at some point but I will make sure to run it again before submitting. Thanks. Regards, Jiang > Thanks, > Stefano > _______________________________________________ Virtualization mailing list Virtualization@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linuxfoundation.org/mailman/listinfo/virtualization
