On Wed, Nov 26, 2014 at 6:54 PM, Dmitry Nikishov <dnikis...@mirantis.com> wrote:
> I've just tried installing ovs-switch 2.3.0 and ovs-common 2.3.0, so
> all the ovs packages versions are aligned. That didn't help: as long
> as VFs are disabled, it works fine, but not when they are enabled.
>
> On Wed, Nov 26, 2014 at 4:27 PM, Andrey Korolyov <and...@xdel.ru> wrote:
>> On Wed, Nov 26, 2014 at 3:17 PM, Dmitry Nikishov <dnikis...@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.
>>> _______________________________________________
>>> discuss mailing list
>>> discuss@openvswitch.org
>>> http://openvswitch.org/mailman/listinfo/discuss
>>
>> 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.

As a VF initialization resulting in an effective interface
reappearance with probably different udev name, did you checked that
the interface with same name is still visible via netlink, sorry for a
silly question? If so, try to re-add the interface first after VF
initialization, if it will not help, please post 'ovs-vsctl list
Interface eth0' output. Any hints for traffic flow, like inserting
static flow with desired port# as a destination and looking into
appropriate tcpdump output, if arp propagation is not likely working,
are appreciated as well.
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