[ovs-dev] [PATCH] Add support for 802.1ad (QinQ tunneling)

[Xiao Liang]

As far as I know, Eric and Tom are working on the kernel patch set and
would submit a new version to net-next. Kernel patches usually go to
netdev first and then backported to OVS tree. Meanwhile, this
userspace patch works with current kernel module, with a limitation
that inner VLAN header can not be matched, which should only impact
the egress cvlan check. It would be nice if you could help try and
review these patches.
Regarding neutron part, Bo is working on it, and we are looking for a
way to get OVS capabilities. Do you think it's better submit for
discuss now or wait for the OVS part to be ready?

Thanks,
Xiao

On Thu, Jul 14, 2016 at 2:35 AM, Carl Baldwin <carl at ecbaldwin.net> wrote:
> On Sat, Jun 25, 2016 at 4:13 AM, Xiao Liang <shaw.leon at gmail.com> wrote:
>>
>> Hi,
>>
>> I'm looking for QinQ support in OVS for some time. And found patches[1-3]
>> by Thomas, and Gayathri. What I want is to use QinQ tunneling in neutron
>> networking, which needs vlan_mode configuration of ports (as in Gayathri's
>> patch) as well as openflow VLAN manipulating action support (as in Thomas's
>> patch). Unfortunately, these patches are not compatible, so I made this
>> patch.
>> It's based on Thomas's kernel patch and reference the idea from Gayathri,
>> and is (in my tests) backward compatible. Although the kernel patch not
>> merged yet, I believe the nlmsg will not change.
>
>
> I haven't seen much discussion on the kernel patches that you reference
> since they were proposed in November.  I'm unfamiliar with the process for
> landing changes like this which span the linux and ovs repositories.  Is
> there effort being made elsewhere to get these to land?  Where might I look
> to follow that effort?  Is there anything I can do to help with the process?
>
> Carl
>
>> References:
>> [1] openvswitch: 802.1ad uapi changes, Thomas F Herbert,
>> https://patchwork.ozlabs.org/patch/540673/
>>     Check for vlan ethernet types for 8021.q or 802.1ad,
>> https://patchwork.ozlabs.org/patch/540668/
>>     openvswitch: 802.1AD: Flow handling, actions, vlan parsing and netlink
>> attributes, https://patchwork.ozlabs.org/patch/540671/
>> [2] Add 802.1ad (qinq) support, Thomas F Herbert,
>> http://openvswitch.org/pipermail/dev/2015-October/060874.html
>> [3] 802.1ad support in OVS & OVS-DPDK, Gayathri Manepalli,
>> http://openvswitch.org/pipermail/dev/2016-February/066265.html
>>
>