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xen-devel
RE: [Xen-devel] Xen support for PCI-SIG I/O Virtualization
> Let me know if you want to know more.
Curious if your patches have any multi-root logic.. Or if only SR.
Do you have specific smart NICs that you recommend that work with your
patches/Xen?
thanks,
Tom
> -----Original Message-----
> From: xen-devel-bounces@xxxxxxxxxxxxxxxxxxx
> [mailto:xen-devel-bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of Greg Law
> Sent: Wednesday, January 16, 2008 11:56 AM
> To: Masroor Vettuparambil
> Cc: xen-devel@xxxxxxxxxxxxxxxxxxx
> Subject: Re: [Xen-devel] Xen support for PCI-SIG I/O Virtualization
>
> Masroor Vettuparambil wrote:
> > Hi,
> >
> > what is the current support of Xen for PCI-SIG IOV SR/MR spec?
> > I have a PCIe device which supports multiple virtual functions(VF),
> > and want to enable direct assignment of each of these VFs
> to different domUs.
> > So is it possible to assign a PCIe virtual channel/function to domU
> > directly?
>
> Have you seen the work we did recently to allow smart NIC's
> to be accessed directly from the guest? Essentially your
> "accelerated" driver is a plugin to netfront (which knows how
> to send/receive packets with safe direct access hardware to
> the NIC), and a plugin for netback which deals with the
> privileged part of programming the NIC (e.g. creating virtual
> devices and handing them out to the guests as appropriate).
> Among other things, this architecture means you can support
> migrating to machines with no smart hardware, or a different
> smart NIC.
>
> Let me know if you want to know more.
>
> As far as programming the IOMMU goes, I've seen various
> patches flying around so I know work has been done here, but
> I don't know any more than that.
>
> Cheers,
>
> Greg
> --
> Greg Law +44 1223 518 040
>
> _______________________________________________
> Xen-devel mailing list
> Xen-devel@xxxxxxxxxxxxxxxxxxx
> http://lists.xensource.com/xen-devel
>
>
>
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