On Tue, 2016-05-17 at 15:03 -0400, Jarod Wilson wrote:
> I've got a bug report about an e1000e interface, where a vlan interface
> is
> set up on top of it:
> 
> $ ip link add link ens1f0 name ens1f0.99 type vlan id 99
> $ ip link set ens1f0 up
> $ ip link set ens1f0.99 up
> $ ip addr add 192.168.99.92 dev ens1f0.99
> 
> At this point, I can ping another host on vlan 99, ip 192.168.99.91.
> However, if I do the following:
> 
> $ ethtool -K ens1f0 rxvlan off
> 
> Then no traffic passes on ens1f0.99. It comes back if I toggle rxvlan on
> again. I'm not sure if this is actually intended behavior, or if there's
> a
> lack of software vlan stripping fallback, or what, but things continue to
> work if I simply don't call e1000e_vlan_strip_disable() if there are
> active vlans (plagiarizing a function from the e1000 driver here) on the
> interface.
> 
> Also slipped a related-ish fix to the kerneldoc text for
> e1000e_vlan_strip_disable here...
> 
> CC: Jeff Kirsher <jeffrey.t.kirs...@intel.com>
> CC: intel-wired-...@lists.osuosl.org
> CC: net...@vger.kernel.org
> Signed-off-by: Jarod Wilson <ja...@redhat.com>
> ---
>  drivers/net/ethernet/intel/e1000e/netdev.c | 15 +++++++++++++--
>  1 file changed, 13 insertions(+), 2 deletions(-)

Raanan, please review this patch.  Even though it is an RFC I will be
adding it to my queue for testing.
http://patchwork.ozlabs.org/patch/623238/

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