[ewg] Re: [ofa-general] does RHEL5 Xen work with OFED?

[G.O.]

On 4/10/07, Michael S. Tsirkin <mst at dev.mellanox.co.il> wrote:
> > Quoting G.O. <gurhan.ozen at gmail.com>:
> > Subject: Re: [ofa-general] does RHEL5 Xen work with OFED?
> >
> > On 4/5/07, Scott Weitzenkamp (sweitzen) <sweitzen at cisco.com> 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.
>
> --
> MST
>

    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.

   Thanks,
  Gurhan