From: Ido Schimmel <idosch@xxxxxxxxxx> commit 23fb886a1ced6f885ddd541cc86d45c415ce705c upstream. MAC Merge cannot be tested with veth pairs, resulting in failures: # ./ethtool_mm.sh [...] TEST: Manual configuration with verification: swp1 to swp2 [FAIL] Verification did not succeed Fix by skipping the test when the interfaces do not support MAC Merge. Fixes: e6991384ace5 ("selftests: forwarding: add a test for MAC Merge layer") Reported-by: Mirsad Todorovac <mirsad.todorovac@xxxxxxxxxxxx> Closes: https://lore.kernel.org/netdev/adc5e40d-d040-a65e-eb26-edf47dac5b02@xxxxxxxxxxxx/ Signed-off-by: Ido Schimmel <idosch@xxxxxxxxxx> Reviewed-by: Hangbin Liu <liuhangbin@xxxxxxxxx> Acked-by: Nikolay Aleksandrov <razor@xxxxxxxxxxxxx> Link: https://lore.kernel.org/r/20230808141503.4060661-11-idosch@xxxxxxxxxx Signed-off-by: Jakub Kicinski <kuba@xxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- .../selftests/net/forwarding/ethtool_mm.sh | 18 +++++++++++++----- 1 file changed, 13 insertions(+), 5 deletions(-) diff --git a/tools/testing/selftests/net/forwarding/ethtool_mm.sh b/tools/testing/selftests/net/forwarding/ethtool_mm.sh index c580ad623848..39e736f30322 100755 --- a/tools/testing/selftests/net/forwarding/ethtool_mm.sh +++ b/tools/testing/selftests/net/forwarding/ethtool_mm.sh @@ -258,11 +258,6 @@ h2_destroy() setup_prepare() { - check_ethtool_mm_support - check_tc_fp_support - require_command lldptool - bail_on_lldpad "autoconfigure the MAC Merge layer" "configure it manually" - h1=${NETIFS[p1]} h2=${NETIFS[p2]} @@ -278,6 +273,19 @@ cleanup() h1_destroy } +check_ethtool_mm_support +check_tc_fp_support +require_command lldptool +bail_on_lldpad "autoconfigure the MAC Merge layer" "configure it manually" + +for netif in ${NETIFS[@]}; do + ethtool --show-mm $netif 2>&1 &> /dev/null + if [[ $? -ne 0 ]]; then + echo "SKIP: $netif does not support MAC Merge" + exit $ksft_skip + fi +done + trap cleanup EXIT setup_prepare -- 2.41.0