Re: [RFC PATCH 1/4] net: Add support to netdev ops for changing hardware queue MAC and VLAN filters

[Simon Horman <horms@verge.net.au>]

On Mon, Nov 23, 2009 at 12:52:48PM -0700, Williams, Mitch A wrote:
> >From: Ben Hutchings [mailto:bhutchings@solarflare.com]
> >Sent: Monday, November 23, 2009 5:23 AM
> [snip]
> 
> >
> >How does this interact with use of multiple queues within a single
> >function?  Are the specified queue numbers really interpreted as RX
> >queue indices or as function numbers?
> >
> >Ben.
> 
> Yeah, that is ambiguous.  Would it be better if we changed the name of the parameter to 'vf' instead of 'queue' to make it explicit?
> 
> This would give us:
> $ ip link set eth1 vf 1 mac <blah>
> 
> The issue of which VF goes with which PF device can be deduced in
> userspace via sysfs.

Does this mean that the configuration of filtering for a VF needs
to be done where the interface for the VF exists - e.g. in a KVM
guest/Xen domU?

In terms of dealing with interfaces and the way that tools such as ip work
that makes a lot of sense. But I wonder if it actually makes more sense
from an administrative point of view to have this configuration go through
the PF - e.g. the KVM host/Xen domO.