[PATCH net 2/3] selftests: forwarding: fix learning_test when h1 supports IFF_UNICAST_FLT

Vladimir Oltean
2022-07-03T07:37:12Z

The first host interface has by default no interest in receiving packets
MAC DA de:ad:be:ef:13:37, so it might drop them before they hit the tc
filter and this might confuse the selftest.

Enable promiscuous mode such that the filter properly counts received
packets.

Fixes: d4deb01467ec ("selftests: forwarding: Add a test for FDB learning")
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
---
tools/testing/selftests/net/forwarding/lib.sh | 2 ++
1 file changed, 2 insertions(+)

diff --git a/tools/testing/selftests/net/forwarding/lib.sh b/tools/testing/selftests/net/forwarding/lib.sh
index 4e69497f021f..26ba8b5d264a 100755
--- a/tools/testing/selftests/net/forwarding/lib.sh
+++ b/tools/testing/selftests/net/forwarding/lib.sh
@@ -1240,6 +1240,7 @@ learning_test()
# FDB entry was installed.
bridge link set dev $br_port1 flood off

+ ip link set $host1_if promisc on
tc qdisc add dev $host1_if ingress
tc filter add dev $host1_if ingress protocol ip pref 1 handle 101 \
flower dst_mac $mac action drop
@@ -1289,6 +1290,7 @@ learning_test()

tc filter del dev $host1_if ingress protocol ip pref 1 handle 101 flower
tc qdisc del dev $host1_if ingress
+ ip link set $host1_if promisc off

bridge link set dev $br_port1 flood on

--
2.25.1