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selftests: forwarding: Add tc-police tests for packets per second

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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 <baowen.zheng@corigine.com>
Signed-off-by: Simon Horman <simon.horman@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Baowen Zheng 2021-03-26 14:09:38 +01:00 committed by David S. Miller
parent c127ffa23e
commit 53b61f2936
2 changed files with 65 additions and 0 deletions
tools/testing/selftests/net/forwarding
lib.shtc_police.sh

9
tools/testing/selftests/net/forwarding/lib.sh
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@ -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

56
tools/testing/selftests/net/forwarding/tc_police.sh
View File

@ -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]}