[dpdk-users] Using PF bound to IGB_UIO, together with sr-iov VFs passed to guests

ran lifshitz ranlfg at gmail.com
Wed Jul 12 13:33:42 CEST 2017

Hi Rami,

I'm creating the vfs, while the pf is bound to igb_uio:
echo 63 > /sys/bus/pci/devices/0000\:05\:00.0/max_vfs

I'm getting 63 pfs in lspci, but when i try to load the vm:

virsh create mini1.xml
error: Failed to create domain from mini1.xml
error: An error occurred, but the cause is unknown

in the dpdk manual, it's refering to qemu, so I probably assume that the
libvirt try to initialize the VF mac and vlan, but this is not supported by
the igb_uio ?
it works well when ixgbe.ko is bound.

On Wed, Jul 12, 2017 at 1:11 PM, Rosen, Rami <rami.rosen at intel.com> wrote:

> Hi, Ran,
> What is the internal error you get when bringing up the
> guest ?
> Regards,
> Rami Rosen
> -----Original Message-----
> From: users [mailto:users-bounces at dpdk.org] On Behalf Of ran lifshitz
> Sent: Tuesday, July 11, 2017 12:24
> To: users at dpdk.org
> Subject: [dpdk-users] Using PF bound to IGB_UIO, together with sr-iov VFs
> passed to guests
> Hi,
> I'm having trouble trying to build a scenario were the host has the PF
> bound to igb_uio, and working with dpdk application, together with sr-iov
> VFs passthrough to guest machines.
> Libvirt is not able to bring up the guest, and exit with internal error.
> I assume that the vlan/mac initialization which is working well, when the
> PF is assigned to ixgbe.k does not work when bound to igb_uio.
> Is this an igb_uio issue or libvirt ?
> is there a workaround for this ?
> Regards
> Ran


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