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xen-devel
Re: [xen-devel] infiniband/quadrics interconnect sharing
> I was wondering if there's any way to share a quadrics/infiniband
> interconnect between dom0 and domUs. I know you can go to the IP layer
> and run IP over both infiniband and quadrics then run the standard
> default network-bridge because its at the IP layer at that point and
> you can do whatever you want. But does anyone know if there's been any
> effort to run at a lower level so that infiniband/quadrics can run
> without the IP layer overhead?
There's an ongoing effort to make this happen.
The Smart IO tree (http://xenbits.xensource.com/ext/xen-smartio.hg) was the
place where this development was occurring last I heard. I'm not sure what
state the code in it is in at the moment.
The goal of the work is to leverage the user-accessible characteristics of
Infiniband to enable domUs to do data-path operations by direct IO to the
adaptor, whilst ensuring safety by placing dom0 in charge of privileged
operations.
Cheers,
Mark
--
Dave: Just a question. What use is a unicyle with no seat? And no pedals!
Mark: To answer a question with a question: What use is a skateboard?
Dave: Skateboards have wheels.
Mark: My wheel has a wheel!
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