Two patches here, first fixes the issue where tunnel core doesn't actually extract DF bit from the outer IP header, even though both OVS and TC flower allow matching on it. More details in the commit message.
The second is a selftest for openvswitch that reproduces the issue, but also just adds some basic coverage for the tunnel metadata extraction and related openvswitch uAPI.
Version 2: * Added missing tun_dst NULL check. * Added Reviewed-by from Aaron for the selftest.
Version 1: https://lore.kernel.org/netdev/20250905133105.3940420-1-i.maximets@ovn.org/
Ilya Maximets (2): net: dst_metadata: fix IP_DF bit not extracted from tunnel headers selftests: openvswitch: add a simple test for tunnel metadata
include/net/dst_metadata.h | 11 ++- .../selftests/net/openvswitch/openvswitch.sh | 88 +++++++++++++++++-- 2 files changed, 90 insertions(+), 9 deletions(-)