RE: [net-next-2.6 PATCH 0/8 RFC v2] macvlan: MAC Address filtering support for passthru mode

[Ben Hutchings <bhutchings@solarflare.com>]

On Tue, 2011-10-25 at 08:59 -0700, Rose, Gregory V wrote:
> > -----Original Message-----
> > From: Michael S. Tsirkin [mailto:mst@redhat.com]
> > Sent: Tuesday, October 25, 2011 8:46 AM
> > To: Roopa Prabhu
> > Cc: netdev@vger.kernel.org; sri@us.ibm.com; dragos.tatulea@gmail.com;
> > arnd@arndb.de; kvm@vger.kernel.org; davem@davemloft.net;
> > mchan@broadcom.com; dwang2@cisco.com; shemminger@vyatta.com;
> > eric.dumazet@gmail.com; kaber@trash.net; benve@cisco.com; Rose, Gregory V
> > Subject: Re: [net-next-2.6 PATCH 0/8 RFC v2] macvlan: MAC Address
> > filtering support for passthru mode
> > 
> > On Mon, Oct 24, 2011 at 11:15:05AM -0700, Roopa Prabhu wrote:
> > > >> ... And also I dont know of any hw
> > > >> that provides an interface to set hw filters on a per queue basis.
> > > >
> > > > VMDq hardware would support this, no?
> > > >
> > > Am not really sure. This patch uses netdev to pass filters to hw. And I
> > > don't see any netdev infrastructure that would support per queue
> > filters.
> > 
> > Sure. I was only saying that as far as I understand,
> > VMDq hardware does support this functionality.
> > Right, Greg?
> 
> In the case of Intel HW yes.  I'll refrain from speaking for other HW
> vendors although I'm guessing it would be true in their cases also.
> YMMV, caveat emptor, etc. etc.

Current Solarflare hardware supports:
- RX MAC address filters for queue selection (steering), which can be
  combined with RSS (flow hashing)
- TX MAC address filters to prevent spoofing
Multiple filters can be associated with a single queue.

Ben.

-- 
Ben Hutchings, Staff Engineer, Solarflare
Not speaking for my employer; that's the marketing department's job.
They asked us to note that Solarflare product names are trademarked.