Commit dd5d20e1 authored Jun 16, 2022 by Petr Machata Committed by David S. Miller Jun 17, 2022

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>

parent 35d5829e

tools/testing/selftests/drivers/net/mlxsw/tc_flower_scale.sh

+17 −0

Original line number	Diff line number	Diff line
		@@ -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
		}