[PATCH net 2/2] selftests: mlxsw: Test port range occupancy on template create
flat view
WARM2d
LANDED: 3 (3M)
From: Petr Machata <petrm@nvidia.com>
Date: 2026-10-06 14:22:43
Subsystem:
kernel selftest framework, mellanox ethernet switch drivers, networking drivers, the rest · Maintainers:
Shuah Khan, Shuah Khan, Ido Schimmel, Petr Machata, Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
1 review trailer (1 from subsystem maintainers); landed in mainline as 71198b59df56 on 2026-10-08.
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. Assisted-by: LLM Reviewed-by: Ido Schimmel <idosch@nvidia.com> Signed-off-by: Petr Machata <petrm@nvidia.com> --- .../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
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2.55.0