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Message-ID: <a1e9b237703eb76830898a5ec75e3936f73f3444.1728473602.git.petrm@nvidia.com>
Date: Wed, 9 Oct 2024 14:06:28 +0200
From: Petr Machata <petrm@...dia.com>
To: "David S. Miller" <davem@...emloft.net>, Eric Dumazet
<edumazet@...gle.com>, Jakub Kicinski <kuba@...nel.org>, Paolo Abeni
<pabeni@...hat.com>, <netdev@...r.kernel.org>
CC: <linux-kselftest@...r.kernel.org>, Shuah Khan <shuah@...nel.org>,
"Benjamin Poirier" <bpoirier@...dia.com>, Hangbin Liu <liuhangbin@...il.com>,
"Vladimir Oltean" <vladimir.oltean@....com>, Ido Schimmel
<idosch@...dia.com>, "Przemek Kitszel" <przemyslaw.kitszel@...el.com>, Petr
Machata <petrm@...dia.com>, <mlxsw@...dia.com>
Subject: [PATCH net-next 10/10] selftests: mlxsw: devlink_trap_police: Use defer for test cleanup
Use the defer framework to schedule cleanups as soon as the command is
executed.
Note that the start_traffic commands in __burst_test() are each sending a
fixed number of packets (note the -c flag) and then ending. They therefore
do not need a matching stop_traffic.
Signed-off-by: Petr Machata <petrm@...dia.com>
---
.../drivers/net/mlxsw/devlink_trap_policer.sh | 85 ++++++++-----------
1 file changed, 36 insertions(+), 49 deletions(-)
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 0bd5ffc218ac..29a672c2270f 100755
--- a/tools/testing/selftests/drivers/net/mlxsw/devlink_trap_policer.sh
+++ b/tools/testing/selftests/drivers/net/mlxsw/devlink_trap_policer.sh
@@ -45,63 +45,52 @@ source $lib_dir/devlink_lib.sh
h1_create()
{
simple_if_init $h1 192.0.2.1/24
+ defer simple_if_fini $h1 192.0.2.1/24
+
mtu_set $h1 10000
+ defer mtu_restore $h1
ip -4 route add default vrf v$h1 nexthop via 192.0.2.2
-}
-
-h1_destroy()
-{
- ip -4 route del default vrf v$h1 nexthop via 192.0.2.2
-
- mtu_restore $h1
- simple_if_fini $h1 192.0.2.1/24
+ defer ip -4 route del default vrf v$h1 nexthop via 192.0.2.2
}
h2_create()
{
simple_if_init $h2 198.51.100.1/24
+ defer simple_if_fini $h2 198.51.100.1/24
+
mtu_set $h2 10000
+ defer mtu_restore $h2
ip -4 route add default vrf v$h2 nexthop via 198.51.100.2
-}
-
-h2_destroy()
-{
- ip -4 route del default vrf v$h2 nexthop via 198.51.100.2
-
- mtu_restore $h2
- simple_if_fini $h2 198.51.100.1/24
+ defer ip -4 route del default vrf v$h2 nexthop via 198.51.100.2
}
router_create()
{
ip link set dev $rp1 up
+ defer ip link set dev $rp1 down
+
ip link set dev $rp2 up
+ defer ip link set dev $rp2 down
__addr_add_del $rp1 add 192.0.2.2/24
+ defer __addr_add_del $rp1 del 192.0.2.2/24
+
__addr_add_del $rp2 add 198.51.100.2/24
+ defer __addr_add_del $rp2 del 198.51.100.2/24
+
mtu_set $rp1 10000
+ defer mtu_restore $rp1
+
mtu_set $rp2 10000
+ defer mtu_restore $rp2
ip -4 route add blackhole 198.51.100.100
+ defer ip -4 route del blackhole 198.51.100.100
devlink trap set $DEVLINK_DEV trap blackhole_route action trap
-}
-
-router_destroy()
-{
- devlink trap set $DEVLINK_DEV trap blackhole_route action drop
-
- ip -4 route del blackhole 198.51.100.100
-
- mtu_restore $rp2
- mtu_restore $rp1
- __addr_add_del $rp2 del 198.51.100.2/24
- __addr_add_del $rp1 del 192.0.2.2/24
-
- ip link set dev $rp2 down
- ip link set dev $rp1 down
+ defer devlink trap set $DEVLINK_DEV trap blackhole_route action drop
}
setup_prepare()
@@ -114,7 +103,11 @@ setup_prepare()
rp1_mac=$(mac_get $rp1)
+ # Reload to ensure devlink-trap settings are back to default.
+ defer devlink_reload
+
vrf_prepare
+ defer vrf_cleanup
h1_create
h2_create
@@ -122,21 +115,6 @@ setup_prepare()
router_create
}
-cleanup()
-{
- pre_cleanup
-
- router_destroy
-
- h2_destroy
- h1_destroy
-
- vrf_cleanup
-
- # Reload to ensure devlink-trap settings are back to default.
- devlink_reload
-}
-
rate_limits_test()
{
RET=0
@@ -214,7 +192,10 @@ __rate_test()
# by the policer. Make sure measured received rate is about 1000 pps
log_info "=== Tx rate: Highest, Policer rate: 1000 pps ==="
+ defer_scope_push
+
start_traffic $h1 192.0.2.1 198.51.100.100 $rp1_mac
+ defer stop_traffic $!
sleep 5 # Take measurements when rate is stable
@@ -229,13 +210,16 @@ __rate_test()
check_err $? "Expected non-zero policer drop rate, got 0"
log_info "Measured policer drop rate of $drop_rate pps"
- stop_traffic
+ defer_scope_pop
# Send packets at a rate of 1000 pps and make sure they are not dropped
# by the policer
log_info "=== Tx rate: 1000 pps, Policer rate: 1000 pps ==="
+ defer_scope_push
+
start_traffic $h1 192.0.2.1 198.51.100.100 $rp1_mac -d 1msec
+ defer stop_traffic $!
sleep 5 # Take measurements when rate is stable
@@ -244,7 +228,7 @@ __rate_test()
check_err $? "Expected zero policer drop rate, got a drop rate of $drop_rate pps"
log_info "Measured policer drop rate of $drop_rate pps"
- stop_traffic
+ defer_scope_pop
# Unbind the policer and send packets at highest possible rate. Make
# sure they are not dropped by the policer and that the measured
@@ -253,7 +237,10 @@ __rate_test()
devlink trap group set $DEVLINK_DEV group l3_drops nopolicer
+ defer_scope_push
+
start_traffic $h1 192.0.2.1 198.51.100.100 $rp1_mac
+ defer stop_traffic $!
rate=$(trap_rate_get)
(( rate > 1000 ))
@@ -265,7 +252,7 @@ __rate_test()
check_err $? "Expected zero policer drop rate, got a drop rate of $drop_rate pps"
log_info "Measured policer drop rate of $drop_rate pps"
- stop_traffic
+ defer_scope_pop
log_test "Trap policer rate"
}
--
2.45.0
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