selftests: mlxsw: Add a new test extack.sh

Add a testsuite dedicated to testing extack propagation and related
functionality.

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

diff --git a/tools/testing/selftests/drivers/net/mlxsw/extack.sh b/tools/testing/selftests/drivers/net/mlxsw/extack.sh
new file mode 100755 (executable)
index 0000000..101a550
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/mlxsw/extack.sh
@@ -0,0 +1,84 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# Test operations that we expect to report extended ack.
+
+lib_dir=$(dirname $0)/../../../net/forwarding
+
+ALL_TESTS="
+       netdev_pre_up_test
+"
+NUM_NETIFS=2
+source $lib_dir/lib.sh
+
+setup_prepare()
+{
+       swp1=${NETIFS[p1]}
+       swp2=${NETIFS[p2]}
+
+       ip link set dev $swp1 up
+       ip link set dev $swp2 up
+}
+
+cleanup()
+{
+       pre_cleanup
+
+       ip link set dev $swp2 down
+       ip link set dev $swp1 down
+}
+
+netdev_pre_up_test()
+{
+       RET=0
+
+       ip link add name br1 up type bridge vlan_filtering 0 mcast_snooping 0
+       ip link add name vx1 up type vxlan id 1000 \
+               local 192.0.2.17 remote 192.0.2.18 \
+               dstport 4789 nolearning noudpcsum tos inherit ttl 100
+
+       ip link set dev vx1 master br1
+       check_err $?
+
+       ip link set dev $swp1 master br1
+       check_err $?
+
+       ip link add name br2 up type bridge vlan_filtering 0 mcast_snooping 0
+       ip link add name vx2 up type vxlan id 2000 \
+               local 192.0.2.17 remote 192.0.2.18 \
+               dstport 4789 nolearning noudpcsum tos inherit ttl 100
+
+       ip link set dev vx2 master br2
+       check_err $?
+
+       ip link set dev $swp2 master br2
+       check_err $?
+
+       # Unsupported configuration: mlxsw demands that all offloaded VXLAN
+       # devices have the same TTL.
+       ip link set dev vx2 down
+       ip link set dev vx2 type vxlan ttl 200
+
+       ip link set dev vx2 up &>/dev/null
+       check_fail $?
+
+       ip link set dev vx2 up 2>&1 >/dev/null | grep -q mlxsw_spectrum
+       check_err $?
+
+       log_test "extack - NETDEV_PRE_UP"
+
+       ip link del dev vx2
+       ip link del dev br2
+
+       ip link del dev vx1
+       ip link del dev br1
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tests_run
+
+exit $EXIT_STATUS