From 9a9dffcb4ff9b2476dfeda36c4ddd35d7515f6e3 Mon Sep 17 00:00:00 2001 From: Petr Machata Date: Thu, 26 Mar 2020 16:01:14 +0200 Subject: [PATCH] selftests: mlxsw: qos_dscp_router: Test no DSCP rewrite after pedit When DSCP is updated through an offloaded pedit action, DSCP rewrite on egress should be disabled. Add a test that check that it is so. Signed-off-by: Petr Machata Signed-off-by: Ido Schimmel Signed-off-by: David S. Miller --- .../drivers/net/mlxsw/qos_dscp_router.sh | 30 +++++++++++++++++++ 1 file changed, 30 insertions(+) diff --git a/tools/testing/selftests/drivers/net/mlxsw/qos_dscp_router.sh b/tools/testing/selftests/drivers/net/mlxsw/qos_dscp_router.sh index c745ce3befee..4cb2aa65278a 100755 --- a/tools/testing/selftests/drivers/net/mlxsw/qos_dscp_router.sh +++ b/tools/testing/selftests/drivers/net/mlxsw/qos_dscp_router.sh @@ -31,6 +31,7 @@ ALL_TESTS=" ping_ipv4 test_update test_no_update + test_pedit_norewrite test_dscp_leftover " @@ -56,6 +57,11 @@ zero() echo 0 } +three() +{ + echo 3 +} + h1_create() { simple_if_init $h1 192.0.2.1/28 @@ -103,6 +109,9 @@ switch_create() simple_if_init $swp1 192.0.2.2/28 __simple_if_init $swp2 v$swp1 192.0.2.17/28 + tc qdisc add dev $swp1 clsact + tc qdisc add dev $swp2 clsact + lldptool -T -i $swp1 -V APP $(dscp_map 0) >/dev/null lldptool -T -i $swp2 -V APP $(dscp_map 0) >/dev/null lldpad_app_wait_set $swp1 @@ -115,6 +124,9 @@ switch_destroy() lldptool -T -i $swp1 -V APP -d $(dscp_map 0) >/dev/null lldpad_app_wait_del + tc qdisc del dev $swp2 clsact + tc qdisc del dev $swp1 clsact + __simple_if_fini $swp2 192.0.2.17/28 simple_if_fini $swp1 192.0.2.2/28 } @@ -223,18 +235,36 @@ __test_update() test_update() { + echo "Test net.ipv4.ip_forward_update_priority=1" __test_update 1 reprioritize } test_no_update() { + echo "Test net.ipv4.ip_forward_update_priority=0" __test_update 0 echo } +# Test that when DSCP is updated in pedit, the DSCP rewrite is turned off. +test_pedit_norewrite() +{ + echo "Test no DSCP rewrite after DSCP is updated by pedit" + + tc filter add dev $swp1 ingress handle 101 pref 1 prot ip flower \ + action pedit ex munge ip dsfield set $((3 << 2)) retain 0xfc \ + action skbedit priority 3 + + __test_update 0 three + + tc filter del dev $swp1 ingress pref 1 +} + # Test that when the last APP rule is removed, the prio->DSCP map is properly # set to zeroes, and that the last APP rule does not stay active in the ASIC. test_dscp_leftover() { + echo "Test that last removed DSCP rule is deconfigured correctly" + lldptool -T -i $swp2 -V APP -d $(dscp_map 0) >/dev/null lldpad_app_wait_del -- 2.30.2