Re: [net-next-2.6 PATCH 0/6 v4] macvlan: MAC Address filtering support for passthru mode

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On Thu, Feb 02, 2012 at 12:46:57AM -0800, John Fastabend wrote:
> On 2/1/2012 11:24 PM, Michael S. Tsirkin wrote:
> > On Sun, Nov 20, 2011 at 08:30:24AM -0800, Roopa Prabhu wrote:
> >>
> >>
> >>
> >> On 11/17/11 4:15 PM, "Ben Hutchings" <bhutchings@xxxxxxxxxxxxxx> wrote:
> >>
> >>> Sorry to come to this rather late.
> >>>
> >>> On Tue, 2011-11-08 at 23:55 -0800, Roopa Prabhu wrote:
> >>> [...]
> >>>> v2 -> v3
> >>>> - Moved set and get filter ops from rtnl_link_ops to netdev_ops
> >>>> - Support for SRIOV VFs.
> >>>>         [Note: The get filters msg (in the way current get rtnetlink handles
> >>>>         it) might get too big for SRIOV vfs. This patch follows existing
> >>>> sriov 
> >>>>         vf get code and tries to accomodate filters for all VF's in a PF.
> >>>>         And for the SRIOV case I have only tested the fact that the VF
> >>>>         arguments are getting delivered to rtnetlink correctly. The code
> >>>>         follows existing sriov vf handling code so rest of it should work
> >>>> fine]
> >>> [...]
> >>>
> >>> This is already broken for large numbers of VFs, and increasing the
> >>> amount of information per VF is going to make the situation worse.  I am
> >>> no netlink expert but I think that the current approach of bundling all
> >>> information about an interface in a single message may not be
> >>> sustainable.
> >>
> >> Yes agreed. I have the same concern.
> > 
> > So it seems that we need to extend the existing interface to allow
> > tweaking filters per VF. Does it need to block this
> > patchset though? After all, we'll need to support the existing
> 
> hmm not sure I follow what patchset is this blocking?

The one you are replying to.
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