selftests: mlxsw: Add tc action hw_stats tests

Add tests for mlxsw hw_stats types.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/tools/testing/selftests/drivers/net/mlxsw/tc_action_hw_stats.sh b/tools/testing/selftests/drivers/net/mlxsw/tc_action_hw_stats.sh
new file mode 100755 (executable)
index 0000000..20ed98f
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/mlxsw/tc_action_hw_stats.sh
@@ -0,0 +1,130 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+lib_dir=$(dirname $0)/../../../net/forwarding
+
+ALL_TESTS="
+       default_hw_stats_test
+       immediate_hw_stats_test
+       delayed_hw_stats_test
+       disabled_hw_stats_test
+"
+NUM_NETIFS=2
+
+source $lib_dir/tc_common.sh
+source $lib_dir/lib.sh
+source $lib_dir/devlink_lib.sh
+
+h1_create()
+{
+       simple_if_init $h1 192.0.2.1/24
+}
+
+h1_destroy()
+{
+       simple_if_fini $h1 192.0.2.1/24
+}
+
+switch_create()
+{
+       simple_if_init $swp1 192.0.2.2/24
+       tc qdisc add dev $swp1 clsact
+}
+
+switch_destroy()
+{
+       tc qdisc del dev $swp1 clsact
+       simple_if_fini $swp1 192.0.2.2/24
+}
+
+hw_stats_test()
+{
+       RET=0
+
+       local name=$1
+       local action_hw_stats=$2
+       local occ_delta=$3
+       local expected_packet_count=$4
+
+       local orig_occ=$(devlink_resource_get "counters" "flow" | jq '.["occ"]')
+
+       tc filter add dev $swp1 ingress protocol ip pref 1 handle 101 flower \
+               skip_sw dst_ip 192.0.2.2 action drop $action_hw_stats
+       check_err $? "Failed to add rule with $name hw_stats"
+
+       local new_occ=$(devlink_resource_get "counters" "flow" | jq '.["occ"]')
+       local expected_occ=$((orig_occ + occ_delta))
+       [ "$new_occ" == "$expected_occ" ]
+       check_err $? "Expected occupancy of $expected_occ, got $new_occ"
+
+       $MZ $h1 -c 1 -p 64 -a $h1mac -b $swp1mac -A 192.0.2.1 -B 192.0.2.2 \
+               -t ip -q
+
+       tc_check_packets "dev $swp1 ingress" 101 $expected_packet_count
+       check_err $? "Did not match incoming packet"
+
+       tc filter del dev $swp1 ingress protocol ip pref 1 handle 101 flower
+
+       log_test "$name hw_stats"
+}
+
+default_hw_stats_test()
+{
+       hw_stats_test "default" "" 2 1
+}
+
+immediate_hw_stats_test()
+{
+       hw_stats_test "immediate" "hw_stats immediate" 2 1
+}
+
+delayed_hw_stats_test()
+{
+       RET=0
+
+       tc filter add dev $swp1 ingress protocol ip pref 1 handle 101 flower \
+               skip_sw dst_ip 192.0.2.2 action drop hw_stats delayed
+       check_fail $? "Unexpected success in adding rule with delayed hw_stats"
+
+       log_test "delayed hw_stats"
+}
+
+disabled_hw_stats_test()
+{
+       hw_stats_test "disabled" "hw_stats disabled" 0 0
+}
+
+setup_prepare()
+{
+       h1=${NETIFS[p1]}
+       swp1=${NETIFS[p2]}
+
+       h1mac=$(mac_get $h1)
+       swp1mac=$(mac_get $swp1)
+
+       vrf_prepare
+
+       h1_create
+       switch_create
+}
+
+cleanup()
+{
+       pre_cleanup
+
+       switch_destroy
+       h1_destroy
+
+       vrf_cleanup
+}
+
+check_tc_action_hw_stats_support
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tests_run
+
+exit $EXIT_STATUS

diff --git a/tools/testing/selftests/net/forwarding/lib.sh b/tools/testing/selftests/net/forwarding/lib.sh
index a4a7879b3bb958e44a5808ce5ffd3f5e277ecec3..977fc2b326a2e43ec81e1c4a787c7b79c18bb56b 100644 (file)
--- a/tools/testing/selftests/net/forwarding/lib.sh
+++ b/tools/testing/selftests/net/forwarding/lib.sh
@@ -60,6 +60,15 @@ check_tc_chain_support()
        fi
 }
 
+check_tc_action_hw_stats_support()
+{
+       tc actions help 2>&1 | grep -q hw_stats
+       if [[ $? -ne 0 ]]; then
+               echo "SKIP: iproute2 too old; tc is missing action hw_stats support"
+               exit 1
+       fi
+}
+
 if [[ "$(id -u)" -ne 0 ]]; then
        echo "SKIP: need root privileges"
        exit 0