diff mbox series

[net-next,13/16] selftests: mlxsw: qos_mc_aware: Disable IPv6 autogen on bridges

Message ID ac5ac3c95fd19bbb9caf5544217aaae3e995afc0.1687265905.git.petrm@nvidia.com (mailing list archive)
State Accepted
Commit ea2d5f757e914fa0f82949e130ee9da0ee931e59
Headers show
Series selftests: Preparations for out-of-order-operations patches in mlxsw | expand

Commit Message

Petr Machata June 20, 2023, 1:55 p.m. UTC 
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 (this holds
for both bridges used here), 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.

The selftest itself however checks traffic prioritization and scheduling,
and the bridges serve for their L2 forwarding capabilities, and do not need
to participate in routing traffic. The IP addresses or the RIFs are
irrelevant.

Fix by disabling automatic IPv6 address generation for the HW-offloaded
bridges in this selftest, thus exempting them from mlxsw router attention.

Signed-off-by: Petr Machata <petrm@nvidia.com>
Reviewed-by: Danielle Ratson <danieller@nvidia.com>
---
 tools/testing/selftests/drivers/net/mlxsw/qos_mc_aware.sh | 2 ++
 1 file changed, 2 insertions(+)
diff mbox series

Patch

diff --git a/tools/testing/selftests/drivers/net/mlxsw/qos_mc_aware.sh b/tools/testing/selftests/drivers/net/mlxsw/qos_mc_aware.sh
index c8e55fa91660..6d892de43fa8 100755
--- a/tools/testing/selftests/drivers/net/mlxsw/qos_mc_aware.sh
+++ b/tools/testing/selftests/drivers/net/mlxsw/qos_mc_aware.sh
@@ -135,11 +135,13 @@  switch_create()
 		prio bands 8 priomap 7 7 7 7 7 7 7 7
 
 	ip link add name br1 type bridge vlan_filtering 0
+	ip link set dev br1 addrgenmode none
 	ip link set dev br1 up
 	ip link set dev $swp1 master br1
 	ip link set dev $swp3 master br1
 
 	ip link add name br111 type bridge vlan_filtering 0
+	ip link set dev br111 addrgenmode none
 	ip link set dev br111 up
 	ip link set dev $swp2.111 master br111
 	ip link set dev $swp3.111 master br111