On Wed, 2009-01-07 at 12:14 -0600, Anthony Liguori wrote: > Alex Williamson wrote: > > > > As noted in the RFC thread adding the kvm/qemu backing, this does > > increase the size of the virtio-net device I/O port space, up to 1kB > > with PCI rounding if we add a 4k entry VLAN bitmap. A 64 device limit > > is still pretty high for a VM, but maybe we should think about adding > > MMIO space for virtio-pci. Thanks, > > > > I'm not quite sure the best way to address this. Maybe another control > queue for sending commands to control this sort of stuff? What are your > thoughts Rusty?
This is also a good time to decide if a fixed 16 entry MAC filter table is sufficient. Should the size be programmed into the config space? There's plenty of room to make it a bigger fixed size and still stay at 1kB of I/O port space with the VLAN table. This implementation is a little wasteful of space in using 8 bytes to store the MAC and a valid bit, but I suspect there's some endian issues I'm ignoring and a standard data type might make that easier later. Alex -- Alex Williamson HP Open Source & Linux Org. -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
