svn commit: r209611 - head/sys/dev/e1000

[Jack Vogel]

Cool the first person to actually try and use it :)

Yes, there's one key thing you have to do right now that's not
documented, because of the simplistic PCI structure the guest
has the kernel blacklists it from using MSIX. SO, what you need
to do is set the honor_blacklist (that's not the complete string,
use sysctl -a |grep blacklist to find it) and set that to 0. It needs
to be set at boot.

That should get you running.

Jack


On Tue, Aug 17, 2010 at 8:18 AM, pluknet <pluknet at gmail.com> wrote:

> On 1 July 2010 02:13, Jack Vogel <jfvogel at gmail.com> wrote:
> > On Wed, Jun 30, 2010 at 2:50 PM, Julian Elischer <julian at elischer.org
> >wrote:
> >
> >> On 6/30/10 10:26 AM, Jack F Vogel wrote:
> >>
> >>> Author: jfv
> >>> Date: Wed Jun 30 17:26:47 2010
> >>> New Revision: 209611
> >>> URL: http://svn.freebsd.org/changeset/base/209611
> >>>
> >>> Log:
> >>>   SR-IOV support added to igb
> >>>
> >>>   What this provides is support for the 'virtual function'
> >>>   interface that a FreeBSD VM may be assigned from a host
> >>>   like KVM on Linux, or newer versions of Xen with such
> >>>   support.
> >>>
> >>>   When the guest is set up with the capability, a special
> >>>   limited function 82576 PCI device is present in its virtual
> >>>   PCI space, so with this driver installed in the guest that
> >>>   device will be detected and function nearly like the bare
> >>>   metal, as it were.
> >>>
> >>>   The interface is only allowed a single queue in this configuration
> >>>   however initial performance tests have looked very good.
> >>>
> >>>   Enjoy!!
> >>>
> >>>
> >> do these extra devices turn up in a standard ifconfig output?
> >> in other words, can we assign them to jails using vimage?
> >>
> >>
> > They only show up if configured in the PF host, for instance if using
> Linux
> > and KVM (I did develop and test
> > with Fedora 13) you must load the igb driver there specifying that you
> want
> > vf's created and how many.
> > Next in the management of the guest you need to assign one of these vf
> > devices to the guest. After you
> > do all that and load this igb driver then yes, it will look just like a
> > standard igbX device.
> >
>
> Hi, Jack.
>
> I set up qemu-kvm on openSUSE 11.3
>  with 82576 PCI device as you described.
>
> Guest fails to attach with:
> igb0: <Intel(R) PRO/1000 Network Connection version - 2.0.1> mem
> 0xf2060000-0xf2063fff,0xf2064000-0xf2067fff at device 5.0 on pci0
> igb0: Unable to allocate bus resource: interrupt
> device_attach: igb0 attach returned 6
>
> igb0 at pci0:0:5:0:        class=0x020000 card=0xa03c8086 chip=0x10ca8086
> rev=0x01 hdr=0x00
>    vendor     = 'Intel Corporation'
>    class      = network
>    subclass   = ethernet
>    cap 11[40] = MSI-X supports 3 messages in map 0x1c
>
> Did  I missed something?
>
> --
> wbr,
> pluknet
>