[openstack-dev] PCI-passthrough dev ...

Itzik Brown itzikb at dev.mellanox.co.il
Thu Mar 28 21:22:02 UTC 2013


Ian,

I'm going to send a basic VIF Driver and a config for a network 
configuration using macvtap as part of Mellanox Quantum Plugin.
We can schedule an online meeting to discuss some of the key points we 
need to address before the summit.

Itzik

On 3/28/2013 7:29 PM, Ian Wells wrote:
> Chuck's is not the only summit session:
>
> http://summit.openstack.org/cfp/details/81 (the Quantum side of things 
> if you're mapping network devices)
>
> ... and I know Mellanox have also been working on that particular side 
> of things too.  Perhaps we could all get together at the summit before 
> the sessions for a show and tell?  We could equally work it all out in 
> the sessions, but it seems it would be hard to lead a session like 
> that without having some knowledge up front of what other people have 
> done.
>
> To be fair, our code is basically Vladimir Popovski's (Zardara 
> Storage's) work, tidied up and with a scheduler check to make sure 
> there are actually available SRIOV functions on the node before 
> scheduling.  It's there, it's actually a patch against Folsom at the 
> moment, and it works, but I wouldn't lay claim to it necessarily being 
> the One True Way to implement this (and I don't think it has tests 
> enough to pass a review).
> -- 
> Ian.
>
>
>
> On 25 March 2013 16:23, Russell Bryant <rbryant at redhat.com 
> <mailto:rbryant at redhat.com>> wrote:
>
>     On 03/24/2013 01:44 PM, Ian Wells wrote:
>     > Yep, we've got code in test at the moment.
>
>     This is (at least) the second instance that I've heard of where PCI
>     passthrough has been implemented, but code hasn't surfaced yet.  It's
>     really unfortunate to see the duplication of effort happening.
>
>     Chuck Short also proposed a design summit session on it, presumably to
>     discuss implementing it yet another time:
>
>     http://summit.openstack.org/cfp/details/29
>
>     It would be really nice to get some code out in the open for this.
>      :-)
>
>     --
>     Russell Bryant
>
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