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

[Eric Garver]

Sorry for the late reply. I missed this sub-thread somehow.

On Thu, Jul 14, 2016 at 09:38:09AM +0800, Xiao Liang wrote:
> 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

Yes. I'm currently resuming Tom's work. I'm hoping to post a new set of
kernel patches to netdev in the coming weeks. Stay tuned!

> 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
> >>
> >
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