On 4/12/07, Michael S. Tsirkin <[EMAIL PROTECTED]> wrote:
> Quoting G.O. <[EMAIL PROTECTED]>:
> Subject: Re: [ofa-general] does RHEL5 Xen work with OFED?
>
> On 4/10/07, Michael S. Tsirkin <[EMAIL PROTECTED]> wrote:
> >> Quoting G.O. <[EMAIL PROTECTED]>:
> >> Subject: Re: [ofa-general] does RHEL5 Xen work with OFED?
> >>
> >> On 4/5/07, Scott Weitzenkamp (sweitzen) <[EMAIL PROTECTED]> wrote:
> >> >Can I access OFED IPoIB and SRP/iSER devices from within a Xen virtual
> >> >machine?
> >> >
> >>
> >> I haven't tested SRP/iSER , but IPoIB works only on dom0 kernel.
> >> You can't use any infiniband stuff on the guest OSes .
> >>
> >> Gurhan
> >
> >What doesn't work? I would expect both IPoIB and SRP
> >behave in more or less the same way as any network/storage
> >devices, and get virtualized by Xen.
> >
>
> Nothing works. Guest kernel didn't even create
> /sys/class/infiniband/* files. 'Far as the guest kernel is concerned,
> HCA doesn't even seem to exist.
>
> Just as a FYI, I have only tried on paravirtualized guests, didn't
> try it with fully-virtualized guests.
Why would you want to see /sys/class/infiniband/?
There things are only there for direct HW access, guests do not get that.
You should be able to use SRP and IPoIB - you set it up in host (dom0)
and guests use it as any other network/storage device through the
virtualization layer.
Hi Michael,
IIRC, i had got the "can't find device, initialization delayed"
errors. I'll play around with it again with the GA release when I get
a chance and will let you know. Might happen as early as next week.
Thanks,
Gurhan
--
MST
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