Messages in this thread | | | Date | Thu, 6 Nov 2008 22:19:52 -0800 | From | Greg KH <> | Subject | Re: [PATCH 0/16 v6] PCI: Linux kernel SR-IOV support |
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On Thu, Nov 06, 2008 at 03:58:54PM -0700, Matthew Wilcox wrote: > > What we would rather do in KVM, is have the VFs appear in the host as > > standard network devices. We would then like to back our existing PV > > driver to this VF directly bypassing the host networking stack. A key > > feature here is being able to fill the VF's receive queue with guest > > memory instead of host kernel memory so that you can get zero-copy > > receive traffic. This will perform just as well as doing passthrough > > (at least) and avoid all that ugliness of dealing with SR-IOV in the guest. > > This argues for ignoring the SR-IOV mess completely. Just have the > host driver expose multiple 'ethN' devices.
That would work, but do we want to do that for every different type of driver?
thanks,
greg k-h
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