Re: Upstream support for multicast IBoE

[Shawn Bohrer <sbohrer-EgGFQ3RFNTIP7C3xziwOQw@public.gmane.org>]

Hi Or,

On Thu, Jan 12, 2012 at 11:01:58AM -0600, Shawn Bohrer wrote:
> On Wed, Jan 11, 2012 at 09:49:25PM +0200, Or Gerlitz wrote:
> > Shawn Bohrer <sbohrer-EgGFQ3RFNTIP7C3xziwOQw@public.gmane.org> wrote:
> > > Is there any estimate on when we might see something like this upstream?
> > 
> > Could you elaborate a little on your use case for multicast IBoE
> > traffic? e.g how the setup looks like and how are your Ethernet
> > switches act to route that traffic.
> 
> I'm not sure exactly what you are asking here.  We do what I would
> imagine is a typical one to many UD multicast.  We code directly to
> libibvers and librdmacm, and everything is sent IBoE.
> 
> The hosts are in a spine/leaf configuration and all traffic is sent
> over vlans.  My understanding is that the multicast IBoE traffic is
> simply sent as broadcast and that the adapters do the necessary
> filtering.
> 
> Really from my point of view OFED already does what we want, but I
> would really like to see this supported upstream.

Is this something you are working on adding to upstream libibverbs?
I'd be happy to help with testing or whatever else might be needed.

Thanks,
Shawn

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