RE: [PATCH 0/3] Provide a zero-copy method on KVM virtio-net.

2010-02-11 Thread Xin, Xiaohui
...@vger.kernel.org] On Behalf Of Xin Xiaohui Sent: Wednesday, February 10, 2010 7:49 PM To: net...@vger.kernel.org; kvm@vger.kernel.org; linux-ker...@vger.kernel.org; mi...@elte.hu; m...@redhat.com; jd...@c2.user-mode-linux.org Subject: [PATCH 0/3] Provide a zero-copy method on KVM virtio-net. The idea is simple

Re: [PATCH 0/3] Provide a zero-copy method on KVM virtio-net.

2010-02-11 Thread Arnd Bergmann
On Thursday 11 February 2010, Xin, Xiaohui wrote: This does a lot of things that I had planned for macvtap. It's great to hear that you have made this much progress. However, I'd hope that we could combine this with the macvtap driver, which would give us zero-copy transfer capability both

Re: [PATCH 0/3] Provide a zero-copy method on KVM virtio-net.

2010-02-10 Thread Arnd Bergmann
On Wednesday 10 February 2010, Xin Xiaohui wrote: The idea is simple, just to pin the guest VM user space and then let host NIC driver has the chance to directly DMA to it. The patches are based on vhost-net backend driver. We add a device which provides proto_ops as sendmsg/recvmsg to

RE: [PATCH 0/3] Provide a zero-copy method on KVM virtio-net.

2010-02-10 Thread Xin, Xiaohui
On Wednesday 10 February 2010, Xin Xiaohui wrote: The idea is simple, just to pin the guest VM user space and then let host NIC driver has the chance to directly DMA to it. The patches are based on vhost-net backend driver. We add a device which provides proto_ops as sendmsg/recvmsg to