Re: A question about vring operation

2015-08-27 Thread Michael S. Tsirkin
On Thu, Aug 27, 2015 at 01:18:47AM +, Wang, Wei W wrote: Hi all, I have a question about the vring_avail: It only includes an idx (equivalent to the ring tail), which is used by the frontend (virtio_net) to fill bufs. The backend (e.g. vhost_net) maintains the ring head

RE: A question about vring operation

2015-08-27 Thread Wang, Wei W
On 24/07/2015 21:36, Michael S. Tsirkin wrote: On Thu, Aug 27, 2015 at 01:18:47AM +, Wang, Wei W wrote: Hi all, I have a question about the vring_avail: It only includes an idx (equivalent to the ring tail), which is used by the frontend (virtio_net) to fill bufs. The backend