From 0a4d0cb1a326cf0070a625036e19871f544f2d25 Mon Sep 17 00:00:00 2001 From: Petr Machata Date: Tue, 20 Apr 2021 16:53:48 +0200 Subject: [PATCH] selftests: mlxsw: sch_red_ets: Test proper counter cleaning in ETS There was a bug introduced during the rework which cause non-zero backlog being stuck at ETS. Introduce a selftest that would have caught the issue earlier. Signed-off-by: Petr Machata Reviewed-by: Ido Schimmel Signed-off-by: David S. Miller --- tools/testing/selftests/drivers/net/mlxsw/sch_red_ets.sh | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/tools/testing/selftests/drivers/net/mlxsw/sch_red_ets.sh b/tools/testing/selftests/drivers/net/mlxsw/sch_red_ets.sh index 3f007c5f8361..f3ef3274f9b3 100755 --- a/tools/testing/selftests/drivers/net/mlxsw/sch_red_ets.sh +++ b/tools/testing/selftests/drivers/net/mlxsw/sch_red_ets.sh @@ -67,6 +67,13 @@ red_test() { install_qdisc + # Make sure that we get the non-zero value if there is any. + local cur=$(busywait 1100 until_counter_is "> 0" \ + qdisc_stats_get $swp3 10: .backlog) + (( cur == 0 )) + check_err $? "backlog of $cur observed on non-busy qdisc" + log_test "$QDISC backlog properly cleaned" + do_red_test 10 $BACKLOG1 do_red_test 11 $BACKLOG2