[ovs-discuss] Issue with Intel 82599 PF and OVS

Andrey Korolyov andrey at xdel.ru
Wed Nov 26 12:27:33 UTC 2014


On Wed, Nov 26, 2014 at 3:17 PM, Dmitry Nikishov <dnikishov at mirantis.com> wrote:
> Hello all.
>
> I'm trying to get OVS working with Intel 82599 and SR-IOV.
>
> Basically what I currently have is an Ubuntu 12.04 with custom kernel
> (3.14.23) and Intel 82599 NIC (eth0) and OVS 1.10 installed. There is
> also openvswitch-datapath-dkms 2.3.0 which was built for 3.14.23.
>
> There is a br-eth0 bridge in OVS, which is connected to eth0
> interface. Bridge br-mgmt is connected to br-eth0 and is using VLAN
> tag 102.
>
> Network connectivity via br-mgmt -> br-eth0 -> eth0 chain work fine as
> long as 82599 Virtual Functions (VFs) are disabled. Once I enable at
> least 1 VF (echo 1 > /sys/bus/pci/devices/0000:04:00.0/sriov_numvfs),
> server looses connectivity via this chain. If I try to set up VLAN 102
> via ip link directly on eth0, it works.
>
> With the help of tcpdump I've found out that packets don't go any
> further than br-eth0.
>
> Software versions:
> Ubuntu 12.04 with custom kernel 3.14.23
> openvswitch-switch 1.10.1+git20130823-0ubuntu3~cloud0
> openvswitch-datapath-dkms 2.3.0
>
> On Ubuntu 12.04 with 3.11.8-generic, same openvswitch-switch and
> openvswitch-datapath-dkms-lts-saucy there is no such issue.
>
> Any suggestions? Thanks.
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May be it is better to align dp and vswitch versions first, or try
against -saucy dp with same 3.14, if it is new enough to be built
against it.



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