From 71198b59df56a9a0115115091cc1aad2a4e3c74d Mon Sep 17 00:00:00 2001 From: Petr Machata Date: Tue, 6 Oct 2026 16:21:29 +0200 Subject: [PATCH] selftests: mlxsw: Test port range occupancy on template create Add a test that creates a tc chain template matching on both source and destination port ranges and verifies via devlink-resource occupancy that this does not leak port range registers, neither while the template exists nor after it is deleted. Reviewed-by: Ido Schimmel Signed-off-by: Petr Machata Reviewed-by: Jacob Keller Link: https://patch.msgid.link/e7b37b80adb7ac8b0ef20a22d7654a6656c1c545.1791294384.git.petrm@nvidia.com Signed-off-by: Jakub Kicinski --- .../drivers/net/mlxsw/port_range_occ.sh | 26 +++++++++++++++++++ 1 file changed, 26 insertions(+) diff --git a/tools/testing/selftests/drivers/net/mlxsw/port_range_occ.sh b/tools/testing/selftests/drivers/net/mlxsw/port_range_occ.sh index b1f0781f6b25..c7eba3f15066 100755 --- a/tools/testing/selftests/drivers/net/mlxsw/port_range_occ.sh +++ b/tools/testing/selftests/drivers/net/mlxsw/port_range_occ.sh @@ -9,6 +9,7 @@ lib_dir=$(dirname $0)/../../../net/forwarding ALL_TESTS=" port_range_occ_test + port_range_occ_tmplt_test " NUM_NETIFS=2 source $lib_dir/lib.sh @@ -101,6 +102,31 @@ port_range_occ_test() log_test "port range occupancy" } +port_range_occ_tmplt_test() +{ + local occ + + RET=0 + occ=$(port_range_occ_get) + + # Addition of a chain template should not impact occupancy. + tc chain add dev "$swp1" ingress chain 1 protocol ip \ + flower ip_proto udp src_port 501-600 dst_port 701-800 + check_err $? "Could not add chain template" + + (( occ == $(port_range_occ_get) )) + check_err $? "Got occupancy $(port_range_occ_get), expected $occ" + + # And just for completeness sake, neither should deletion. + tc chain del dev "$swp1" ingress chain 1 + check_err $? "Could not delete chain template" + + (( occ == $(port_range_occ_get) )) + check_err $? "Got occupancy $(port_range_occ_get), expected $occ" + + log_test "port range occupancy after template create/destroy" +} + trap cleanup EXIT setup_prepare