From 53b61f29367df398243b7298ad1e5793c289a493 Mon Sep 17 00:00:00 2001 From: Baowen Zheng Date: Fri, 26 Mar 2021 14:09:38 +0100 Subject: [PATCH] selftests: forwarding: Add tc-police tests for packets per second Test tc-police action for packets per second. The test is mainly in scenarios Rx policing and Tx policing. The test passes with veth pairs ports. Signed-off-by: Baowen Zheng Signed-off-by: Simon Horman Signed-off-by: David S. Miller --- tools/testing/selftests/net/forwarding/lib.sh | 9 ++++ .../testing/selftests/net/forwarding/tc_police.sh | 56 ++++++++++++++++++++++ 2 files changed, 65 insertions(+) diff --git a/tools/testing/selftests/net/forwarding/lib.sh b/tools/testing/selftests/net/forwarding/lib.sh index 05c05e02bade..42e28c983d41 100644 --- a/tools/testing/selftests/net/forwarding/lib.sh +++ b/tools/testing/selftests/net/forwarding/lib.sh @@ -772,6 +772,15 @@ rate() echo $((8 * (t1 - t0) / interval)) } +packets_rate() +{ + local t0=$1; shift + local t1=$1; shift + local interval=$1; shift + + echo $(((t1 - t0) / interval)) +} + mac_get() { local if_name=$1 diff --git a/tools/testing/selftests/net/forwarding/tc_police.sh b/tools/testing/selftests/net/forwarding/tc_police.sh index 160f9cccdfb7..4f9f17cb45d6 100755 --- a/tools/testing/selftests/net/forwarding/tc_police.sh +++ b/tools/testing/selftests/net/forwarding/tc_police.sh @@ -35,6 +35,8 @@ ALL_TESTS=" police_shared_test police_rx_mirror_test police_tx_mirror_test + police_pps_rx_test + police_pps_tx_test " NUM_NETIFS=6 source tc_common.sh @@ -290,6 +292,60 @@ police_tx_mirror_test() police_mirror_common_test $rp2 egress "police tx and mirror" } +police_pps_common_test() +{ + local test_name=$1; shift + + RET=0 + + # Rule to measure bandwidth on ingress of $h2 + tc filter add dev $h2 ingress protocol ip pref 1 handle 101 flower \ + dst_ip 198.51.100.1 ip_proto udp dst_port 54321 \ + action drop + + mausezahn $h1 -a own -b $(mac_get $rp1) -A 192.0.2.1 -B 198.51.100.1 \ + -t udp sp=12345,dp=54321 -p 1000 -c 0 -q & + + local t0=$(tc_rule_stats_get $h2 1 ingress .packets) + sleep 10 + local t1=$(tc_rule_stats_get $h2 1 ingress .packets) + + local er=$((2000)) + local nr=$(packets_rate $t0 $t1 10) + local nr_pct=$((100 * (nr - er) / er)) + ((-10 <= nr_pct && nr_pct <= 10)) + check_err $? "Expected rate $(humanize $er), got $(humanize $nr), which is $nr_pct% off. Required accuracy is +-10%." + + log_test "$test_name" + + { kill %% && wait %%; } 2>/dev/null + tc filter del dev $h2 ingress protocol ip pref 1 handle 101 flower +} + +police_pps_rx_test() +{ + # Rule to police traffic destined to $h2 on ingress of $rp1 + tc filter add dev $rp1 ingress protocol ip pref 1 handle 101 flower \ + dst_ip 198.51.100.1 ip_proto udp dst_port 54321 \ + action police pkts_rate 2000 pkts_burst 400 conform-exceed drop/ok + + police_pps_common_test "police pps on rx" + + tc filter del dev $rp1 ingress protocol ip pref 1 handle 101 flower +} + +police_pps_tx_test() +{ + # Rule to police traffic destined to $h2 on egress of $rp2 + tc filter add dev $rp2 egress protocol ip pref 1 handle 101 flower \ + dst_ip 198.51.100.1 ip_proto udp dst_port 54321 \ + action police pkts_rate 2000 pkts_burst 400 conform-exceed drop/ok + + police_pps_common_test "police pps on tx" + + tc filter del dev $rp2 egress protocol ip pref 1 handle 101 flower +} + setup_prepare() { h1=${NETIFS[p1]} -- 2.11.0