netdev - [PATCH net-next 3/7] selftests: mlxsw: Increase burst size for rate test

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Date:   Sun, 23 Aug 2020 11:06:24 +0300
From:   Ido Schimmel <idosch@...sch.org>
To:     netdev@...r.kernel.org
Cc:     davem@...emloft.net, kuba@...nel.org, jiri@...dia.com,
        mlxsw@...dia.com, Ido Schimmel <idosch@...lanox.com>
Subject: [PATCH net-next 3/7] selftests: mlxsw: Increase burst size for rate test

From: Ido Schimmel <idosch@...lanox.com>

The current combination of rate and burst size does not adhere to
Spectrum-{2,3} limitation which states that the minimum burst size
should be 40% of the rate.

Increase the burst size in order to honor above mentioned limitation and
avoid intermittent failures of this test case on Spectrum-{2,3}.

Signed-off-by: Ido Schimmel <idosch@...lanox.com>
---
 .../testing/selftests/drivers/net/mlxsw/devlink_trap_policer.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/testing/selftests/drivers/net/mlxsw/devlink_trap_policer.sh b/tools/testing/selftests/drivers/net/mlxsw/devlink_trap_policer.sh
index bd4ffed1cca3..ecba9ab81c2a 100755
--- a/tools/testing/selftests/drivers/net/mlxsw/devlink_trap_policer.sh
+++ b/tools/testing/selftests/drivers/net/mlxsw/devlink_trap_policer.sh
@@ -207,7 +207,7 @@ __rate_test()
 
 	RET=0
 
-	devlink trap policer set $DEVLINK_DEV policer $id rate 1000 burst 16
+	devlink trap policer set $DEVLINK_DEV policer $id rate 1000 burst 512
 	devlink trap group set $DEVLINK_DEV group l3_drops policer $id
 
 	# Send packets at highest possible rate and make sure they are dropped
-- 
2.26.2