selftests: mlxsw: Add a test case for VLAN addition error flow

Add a test case for the issue fixed by previous commit. In case the
offloading of an unsupported VxLAN tunnel was triggered by adding the
mapped VLAN to a local port, then error should be returned to the user.

Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Reviewed-by: Petr Machata <petrm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 18 insertions, 0 deletions

diff --git a/tools/testing/selftests/drivers/net/mlxsw/vxlan.sh b/tools/testing/selftests/drivers/net/mlxsw/vxlan.sh
index dcf9f4e913e0..ae6146ec5afd 100755
--- a/tools/testing/selftests/drivers/net/mlxsw/vxlan.sh
+++ b/tools/testing/selftests/drivers/net/mlxsw/vxlan.sh
@@ -847,6 +847,24 @@ sanitization_vlan_aware_test()
 
         log_test "vlan-aware - failed enslavement to vlan-aware bridge"
 
+        bridge vlan del vid 10 dev vxlan20
+        bridge vlan add vid 20 dev vxlan20 pvid untagged
+
+        # Test that offloading of an unsupported tunnel fails when it is
+        # triggered by addition of VLAN to a local port
+        RET=0
+
+        # TOS must be set to inherit
+        ip link set dev vxlan10 type vxlan tos 42
+
+        ip link set dev $swp1 master br0
+        bridge vlan add vid 10 dev $swp1 &> /dev/null
+        check_fail $?
+
+        log_test "vlan-aware - failed vlan addition to a local port"
+
+        ip link set dev vxlan10 type vxlan tos inherit
+
         ip link del dev vxlan20
         ip link del dev vxlan10
         ip link del dev br0