In a future patch, mlxsw will start adding RIFs to uppers of front panel port netdevices, if they have an IP address.
At the time that the front panel port is enslaved to the bridge, the bridge MAC address does not have the same prefix as other interfaces in the system. On Nvidia Spectrum-1 machines all the RIFs have to have the same 38-bit MAC address prefix. Since the bridge does not obey this limitation, the RIF cannot be created, and the enslavement attempt is vetoed on the grounds of the configuration not being offloadable.
These two selftests however check mirroring traffic to a gretap netdevice. The bridge here does not participate in routing traffic and the IP address or the RIF are irrelevant.
Fix by disabling automatic IPv6 address generation for the HW-offloaded bridges in these selftests, thus exempting them from mlxsw router attention. Since the bridges are only used for L2 forwarding, this change should not hinder usefulness of this selftest for testing SW datapath or HW datapaths in other devices.
Signed-off-by: Petr Machata petrm@nvidia.com Reviewed-by: Danielle Ratson danieller@nvidia.com --- tools/testing/selftests/net/forwarding/mirror_gre_bound.sh | 1 + tools/testing/selftests/net/forwarding/mirror_topo_lib.sh | 1 + 2 files changed, 2 insertions(+)
diff --git a/tools/testing/selftests/net/forwarding/mirror_gre_bound.sh b/tools/testing/selftests/net/forwarding/mirror_gre_bound.sh index 360ca133bead..6c257ec03756 100755 --- a/tools/testing/selftests/net/forwarding/mirror_gre_bound.sh +++ b/tools/testing/selftests/net/forwarding/mirror_gre_bound.sh @@ -98,6 +98,7 @@ switch_create() # Bridge between H1 and H2.
ip link add name br1 type bridge vlan_filtering 1 + ip link set dev br1 addrgenmode none ip link set dev br1 up
ip link set dev $swp1 master br1 diff --git a/tools/testing/selftests/net/forwarding/mirror_topo_lib.sh b/tools/testing/selftests/net/forwarding/mirror_topo_lib.sh index 04979e5962e7..bb1adbb7b98a 100644 --- a/tools/testing/selftests/net/forwarding/mirror_topo_lib.sh +++ b/tools/testing/selftests/net/forwarding/mirror_topo_lib.sh @@ -60,6 +60,7 @@ mirror_topo_switch_create() ip link set dev $swp3 up
ip link add name br1 type bridge vlan_filtering 1 + ip link set dev br1 addrgenmode none ip link set dev br1 up
ip link set dev $swp1 master br1