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Message-Id: <20191229114829.61803-4-idosch@idosch.org>
Date: Sun, 29 Dec 2019 13:48:29 +0200
From: Ido Schimmel <idosch@...sch.org>
To: netdev@...r.kernel.org
Cc: davem@...emloft.net, jiri@...lanox.com, petrm@...lanox.com,
mlxsw@...lanox.com, Ido Schimmel <idosch@...lanox.com>
Subject: [PATCH net-next 3/3] selftests: mlxsw: Add a self-test for port-default priority
From: Petr Machata <petrm@...lanox.com>
Send non-IP traffic to a port and observe that it gets prioritized
according to the lldptool app=$prio,1,0 rules.
Signed-off-by: Petr Machata <petrm@...lanox.com>
Reviewed-by: Jiri Pirko <jiri@...lanox.com>
Signed-off-by: Ido Schimmel <idosch@...lanox.com>
---
.../drivers/net/mlxsw/qos_defprio.sh | 176 ++++++++++++++++++
tools/testing/selftests/net/forwarding/lib.sh | 23 +++
2 files changed, 199 insertions(+)
create mode 100755 tools/testing/selftests/drivers/net/mlxsw/qos_defprio.sh
diff --git a/tools/testing/selftests/drivers/net/mlxsw/qos_defprio.sh b/tools/testing/selftests/drivers/net/mlxsw/qos_defprio.sh
new file mode 100755
index 000000000000..eff6393ce974
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/mlxsw/qos_defprio.sh
@@ -0,0 +1,176 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# Test for port-default priority. Non-IP packets ingress $swp1 and are
+# prioritized according to the default priority specified at the port.
+# rx_octets_prio_* counters are used to verify the prioritization.
+#
+# +-----------------------+
+# | H1 |
+# | + $h1 |
+# | | 192.0.2.1/28 |
+# +----|------------------+
+# |
+# +----|------------------+
+# | SW | |
+# | + $swp1 |
+# | 192.0.2.2/28 |
+# | APP=<prio>,1,0 |
+# +-----------------------+
+
+ALL_TESTS="
+ ping_ipv4
+ test_defprio
+"
+
+lib_dir=$(dirname $0)/../../../net/forwarding
+
+NUM_NETIFS=2
+: ${HIT_TIMEOUT:=1000} # ms
+source $lib_dir/lib.sh
+
+declare -a APP
+
+defprio_install()
+{
+ local dev=$1; shift
+ local prio=$1; shift
+ local app="app=$prio,1,0"
+
+ lldptool -T -i $dev -V APP $app >/dev/null
+ lldpad_app_wait_set $dev
+ APP[$prio]=$app
+}
+
+defprio_uninstall()
+{
+ local dev=$1; shift
+ local prio=$1; shift
+ local app=${APP[$prio]}
+
+ lldptool -T -i $dev -V APP -d $app >/dev/null
+ lldpad_app_wait_del
+ unset APP[$prio]
+}
+
+defprio_flush()
+{
+ local dev=$1; shift
+ local prio
+
+ if ((${#APP[@]})); then
+ lldptool -T -i $dev -V APP -d ${APP[@]} >/dev/null
+ fi
+ lldpad_app_wait_del
+ APP=()
+}
+
+h1_create()
+{
+ simple_if_init $h1 192.0.2.1/28
+}
+
+h1_destroy()
+{
+ simple_if_fini $h1 192.0.2.1/28
+}
+
+switch_create()
+{
+ ip link set dev $swp1 up
+ ip addr add dev $swp1 192.0.2.2/28
+}
+
+switch_destroy()
+{
+ defprio_flush $swp1
+ ip addr del dev $swp1 192.0.2.2/28
+ ip link set dev $swp1 down
+}
+
+setup_prepare()
+{
+ h1=${NETIFS[p1]}
+ swp1=${NETIFS[p2]}
+
+ vrf_prepare
+
+ h1_create
+ switch_create
+}
+
+cleanup()
+{
+ pre_cleanup
+
+ switch_destroy
+ h1_destroy
+
+ vrf_cleanup
+}
+
+ping_ipv4()
+{
+ ping_test $h1 192.0.2.2
+}
+
+wait_for_packets()
+{
+ local t0=$1; shift
+ local prio_observe=$1; shift
+
+ local t1=$(ethtool_stats_get $swp1 rx_frames_prio_$prio_observe)
+ local delta=$((t1 - t0))
+ echo $delta
+ ((delta >= 10))
+}
+
+__test_defprio()
+{
+ local prio_install=$1; shift
+ local prio_observe=$1; shift
+ local delta
+ local key
+ local i
+
+ RET=0
+
+ defprio_install $swp1 $prio_install
+
+ local t0=$(ethtool_stats_get $swp1 rx_frames_prio_$prio_observe)
+ mausezahn -q $h1 -d 100m -c 10 -t arp reply
+ delta=$(busywait "$HIT_TIMEOUT" wait_for_packets $t0 $prio_observe)
+
+ check_err $? "Default priority $prio_install/$prio_observe: Expected to capture 10 packets, got $delta."
+ log_test "Default priority $prio_install/$prio_observe"
+
+ defprio_uninstall $swp1 $prio_install
+}
+
+test_defprio()
+{
+ local prio
+
+ for prio in {0..7}; do
+ __test_defprio $prio $prio
+ done
+
+ defprio_install $swp1 3
+ __test_defprio 0 3
+ __test_defprio 1 3
+ __test_defprio 2 3
+ __test_defprio 4 4
+ __test_defprio 5 5
+ __test_defprio 6 6
+ __test_defprio 7 7
+ defprio_uninstall $swp1 3
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/lib.sh b/tools/testing/selftests/net/forwarding/lib.sh
index a0b09bb6995e..8dc5fac98cbc 100644
--- a/tools/testing/selftests/net/forwarding/lib.sh
+++ b/tools/testing/selftests/net/forwarding/lib.sh
@@ -225,6 +225,29 @@ log_info()
echo "INFO: $msg"
}
+busywait()
+{
+ local timeout=$1; shift
+
+ local start_time="$(date -u +%s%3N)"
+ while true
+ do
+ local out
+ out=$("$@")
+ local ret=$?
+ if ((!ret)); then
+ echo -n "$out"
+ return 0
+ fi
+
+ local current_time="$(date -u +%s%3N)"
+ if ((current_time - start_time > timeout)); then
+ echo -n "$out"
+ return 1
+ fi
+ done
+}
+
setup_wait_dev()
{
local dev=$1; shift
--
2.24.1
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