From dd5d20e17c960dc5c8b8c585dfae79cf39660867 Mon Sep 17 00:00:00 2001
From: Petr Machata <petrm@nvidia.com>
Date: Thu, 16 Jun 2022 13:42:43 +0300
Subject: [PATCH] selftests: mlxsw: tc_flower_scale: Add a traffic test
Add a test that checks that the created filters do actually trigger on
matching traffic.
Exercising all the rules would be a very lengthy process. Instead, take a
log2 subset of rules. The logic behind picking log2 rules is that then
every bit of the instantiated item's number is exercised. This should catch
issues whether they happen at the high end, low end, or somewhere in
between.
Signed-off-by: Petr Machata <petrm@nvidia.com>
Reviewed-by: Amit Cohen <amcohen@nvidia.com>
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
.../drivers/net/mlxsw/tc_flower_scale.sh | 17 +++++++++++++++++
1 file changed, 17 insertions(+)
diff --git a/tools/testing/selftests/drivers/net/mlxsw/tc_flower_scale.sh b/tools/testing/selftests/drivers/net/mlxsw/tc_flower_scale.sh
index aa74be9f47c85..d3d9e60d6ddfe 100644
--- a/tools/testing/selftests/drivers/net/mlxsw/tc_flower_scale.sh
+++ b/tools/testing/selftests/drivers/net/mlxsw/tc_flower_scale.sh
@@ -77,6 +77,7 @@ tc_flower_rules_create()
filter add dev $h2 ingress \
prot ipv6 \
pref 1000 \
+ handle 42$i \
flower $tcflags dst_ip $(tc_flower_addr $i) \
action drop
EOF
@@ -121,3 +122,19 @@ tc_flower_test()
tcflags="skip_sw"
__tc_flower_test $count $should_fail
}
+
+tc_flower_traffic_test()
+{
+ local count=$1; shift
+ local i;
+
+ for ((i = count - 1; i > 0; i /= 2)); do
+ $MZ -6 $h1 -c 1 -d 20msec -p 100 -a own -b $(mac_get $h2) \
+ -A $(tc_flower_addr 0) -B $(tc_flower_addr $i) \
+ -q -t udp sp=54321,dp=12345
+ done
+ for ((i = count - 1; i > 0; i /= 2)); do
+ tc_check_packets "dev $h2 ingress" 42$i 1
+ check_err $? "Traffic not seen at rule #$i"
+ done
+}
--
2.30.2