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Re: [Qemu-devel] PCI passthrough of 40G ethernet interface (Openstack/KV

From: jacob jacob
Subject: Re: [Qemu-devel] PCI passthrough of 40G ethernet interface (Openstack/KVM)
Date: Thu, 12 Mar 2015 12:36:10 -0400

Hi Alex,
Thanks for the response.

I tried both pci-assign and vfio-pci. The issue is seen in both cases.
i40e driver complains about data tx timeout.

# libvirtd --version
libvirtd (libvirt)

Name        : qemu-system-x86
Arch        : x86_64
Epoch       : 2
Version     : 2.1.3
Release     : 2.fc21

Kernel  3.18.7-200.fc21.x86_64


On Thu, Mar 12, 2015 at 12:26 PM, Alex Williamson
<address@hidden> wrote:
> On Thu, 2015-03-12 at 12:17 -0400, jacob jacob wrote:
>>  Hi,
>>  Seeing failures when trying to do PCI passthrough of Intel XL710 40G
>> interface to KVM vm.
> How is the device being assigned, pci-assign or vfio-pci?  What QEMU
> version?  What host kernel version?  Thanks,
> Alex

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