[Rdo-list] partially broken VLAN tagging support

Hi RDO list, There are some serious issues with VLAN tagging in OVS with the current RDO kernel posted here: http://repos.fedorapeople.org/repos/openstack/openstack-grizzly/epel-6/ke... The issue is that tagged frames get dropped somewhere at the network stack and never actually make it out to the network. These should work natively with this kernel, but we're seeing serious issues. The two specific drivers affected are e1000e and bnx. This applies on just about any 10gigE hardware. According to this doc, they should work natively without the OVS VLAN splintering hack: https://access.redhat.com/site/articles/289823 There's an old patch we're looking at that may help a bit, but it doesn't apply cleanly. http://openvswitch.org/pipermail/discuss/2011-April/005026.html . We're looking at this code segment in net/8021q/vlan_core.c and are trying to understand why vlan_gro_common changed parameters: EXPORT_SYMBOL(vlan_dev_vlan_ id); static gro_result_t vlan_gro_common(struct napi_struct *napi, struct vlan_group *grp, unsigned int vlan_tci, struct sk_buff *skb) I'm told that enabling the OVS splinter mode sometimes causes unwanted behavior and we want to avoid activating it. I was wondering if anyone can comment on this issue and if there's anyone working on a relevant fix. Best Regards, Matthew Mosesohn