From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ido Schimmel Subject: [PATCH net 3/4] selftests: mlxsw: qos_mc_aware: Tweak for min shaper Date: Wed, 31 Oct 2018 09:56:45 +0000 Message-ID: <20181031095601.29846-4-idosch@mellanox.com> References: <20181031095601.29846-1-idosch@mellanox.com> Mime-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Cc: "davem@davemloft.net" , Jiri Pirko , Petr Machata , mlxsw , Ido Schimmel To: "netdev@vger.kernel.org" Return-path: Received: from mail-eopbgr50083.outbound.protection.outlook.com ([40.107.5.83]:6062 "EHLO EUR03-VE1-obe.outbound.protection.outlook.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1727645AbeJaSyO (ORCPT ); Wed, 31 Oct 2018 14:54:14 -0400 In-Reply-To: <20181031095601.29846-1-idosch@mellanox.com> Content-Language: en-US Sender: netdev-owner@vger.kernel.org List-ID: From: Petr Machata Since the minimum shaper is now being enabled for MC TCs, it's unreasonable to expect no UC traffic loss. Minimal min shaper value is 200Mbps, which is 20% of the 1Gbps that this test configures on egress. To cover for glitches, tolerate up to 25% UC degradation under MC overload. Fixes: b5638d46c90a ("selftests: mlxsw: Add a test for UC behavior under MC= flood") Signed-off-by: Petr Machata Signed-off-by: Ido Schimmel --- tools/testing/selftests/drivers/net/mlxsw/qos_mc_aware.sh | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/testing/selftests/drivers/net/mlxsw/qos_mc_aware.sh b/to= ols/testing/selftests/drivers/net/mlxsw/qos_mc_aware.sh index 0150bb2741eb..a8fc36d670e1 100755 --- a/tools/testing/selftests/drivers/net/mlxsw/qos_mc_aware.sh +++ b/tools/testing/selftests/drivers/net/mlxsw/qos_mc_aware.sh @@ -311,7 +311,7 @@ test_mc_aware() ret =3D 100 * ($ucth1 - $ucth2) / $ucth1 if (ret > 0) { ret } else { 0 } ") - check_err $(bc <<< "$deg > 10") + check_err $(bc <<< "$deg > 25") =20 local interval=3D$((d1 - d0)) local mc_ir=3D$(rate $u0 $u1 $interval) --=20 2.17.2