netdev - [PATCH net-next 8/9] selftests: mlxsw: tc_restrictions: add test to check sample action restrictions

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Date:   Sat,  9 May 2020 23:06:09 +0300
From:   Ido Schimmel <idosch@...sch.org>
To:     netdev@...r.kernel.org
Cc:     davem@...emloft.net, kuba@...nel.org, jiri@...lanox.com,
        mlxsw@...lanox.com, Ido Schimmel <idosch@...lanox.com>
Subject: [PATCH net-next 8/9] selftests: mlxsw: tc_restrictions: add test to check sample action restrictions

From: Jiri Pirko <jiri@...lanox.com>

Check that matchall rules with sample actions are not possible to be
inserted to egress.

Signed-off-by: Jiri Pirko <jiri@...lanox.com>
Signed-off-by: Ido Schimmel <idosch@...lanox.com>
---
 .../drivers/net/mlxsw/tc_restrictions.sh      | 25 +++++++++++++++++++
 1 file changed, 25 insertions(+)

diff --git a/tools/testing/selftests/drivers/net/mlxsw/tc_restrictions.sh b/tools/testing/selftests/drivers/net/mlxsw/tc_restrictions.sh
index 68c80d0ec1ec..a67e80315e47 100755
--- a/tools/testing/selftests/drivers/net/mlxsw/tc_restrictions.sh
+++ b/tools/testing/selftests/drivers/net/mlxsw/tc_restrictions.sh
@@ -7,6 +7,7 @@ ALL_TESTS="
 	shared_block_drop_test
 	egress_redirect_test
 	multi_mirror_test
+	matchall_sample_egress_test
 "
 NUM_NETIFS=2
 
@@ -155,6 +156,30 @@ multi_mirror_test()
 	log_test "multi mirror"
 }
 
+matchall_sample_egress_test()
+{
+	RET=0
+
+	# It is forbidden in mlxsw driver to have matchall with sample action
+	# bound on egress
+
+	tc qdisc add dev $swp1 clsact
+
+	tc filter add dev $swp1 ingress protocol all pref 1 handle 101 \
+		matchall skip_sw action sample rate 100 group 1
+	check_err $? "Failed to add rule with sample action on ingress"
+
+	tc filter del dev $swp1 ingress protocol all pref 1 handle 101 matchall
+
+	tc filter add dev $swp1 egress protocol all pref 1 handle 101 \
+		matchall skip_sw action sample rate 100 group 1
+	check_fail $? "Incorrect success to add rule with sample action on egress"
+
+	tc qdisc del dev $swp1 clsact
+
+	log_test "matchall sample egress"
+}
+
 setup_prepare()
 {
 	swp1=${NETIFS[p1]}
-- 
2.26.2