[ovs-discuss] [PATCH v2] [ovs-dev] [PATCH] QinQ: support more vlan headers.

[Ben Pfaff]

On Fri, Sep 07, 2018 at 09:53:44AM +0000, Lilijun (Jerry, Cloud Networking) wrote:
> In my test, vlan-limit is set to 0 that means unlimited the count of vlan
> headers.
> ovs-vsctl set Open_vSwitch . other_config:vlan-limit=0
> 
> But in fact the macro FLOW_MAX_VLAN_HEADERS is defined as 2, so we can
> only support max two vlan headers. It doesn't work as the config vlan-limit's
> description.
> 
> So, when VM sends a packet already with two vlan headers, the vport configured with
> qinq mode can't add another s-vlan headers. FLOW_MAX_VLAN_HEADERS need to
> be larger to support more vlan headers.
> 
> Change-Id: I8449e308d406ce3757b43a2636ff0f326ca12a9d
> Signed-off-by: Lilijun <jerry.lilijun at huawei.com>

This changes documented behavior without updating the documentation.