On Wed, 2009-09-30 at 15:55 +0200, Avi Kivity wrote: > On 09/30/2009 03:51 PM, Christoph Hellwig wrote: > > I might sound like a broken record, but why isn't the full GSO support > > for virtio-net upstream in qemu? > > > > IIRC the current hacks are not upstream quality. > > The problem (again IIRC) is that the guest and host negotiate a > protocol, but the qemu vlan model doesn't have a guest and a host, it > has peers (possibly more than two), so a lot of translation has to take > place if you have one peer supporting a guest feature and another not. Right. > IMO the best way out is to drop the vlan model. It has its uses, but > they can all be implemented in other ways, and are all have minor usage > compared to the business of getting data into and out of a guest. I think we should keep the vlan stuff, just de-emphasise it. I'm planning on adding -hostnet and -nic arguments, which would not use vlans by default but rather connect the nic directly to the host side. The QemuOpts conversion of -net which is waiting to be merged is the first stage of that. Cheers, Mark. -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
