On Fri, Aug 07, 2015 at 10:48:50AM +0530, sai kiran wrote: > I am experimenting on Virtio-net frontend driver. And I observe that > the virtio ring size is communicated to guest as 256. > I tried changing backend-qemu code manually, to propagate 512 ring size. > > But other than changing code and hardcoding, Is there anyway to > configure the virtio ring size.
The ring size is hardcoded in the host. If ring size is a problem, first check that the indirect vring feature is enabled. It allows each packet to take just 1 (indirect) descriptor in the virtqueue. Stefan
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