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Date: Sat, 30 Jun 2018 02:49:32 +0200
From: Petr Machata <petrm@...lanox.com>
To: netdev@...r.kernel.org, linux-kselftest@...r.kernel.org
Cc: jiri@...lanox.com, idosch@...lanox.com, shuah@...nel.org,
davem@...emloft.net
Subject: [PATCH net-next 07/13] selftests: mlxsw: Add router test
From: Arkadi Sharshevsky <arkadis@...lanox.com>
This test aims for both stand alone and internal usage by the resource
infra. The test receives the number routes to offload and checks:
- The routes were offloaded correctly
- Traffic for each route.
Signed-off-by: Arkadi Sharshevsky <arkadis@...lanox.com>
Signed-off-by: Yuval Mintz <yuvalm@...lanox.com>
Reviewed-by: Petr Machata <petrm@...lanox.com>
Signed-off-by: Petr Machata <petrm@...lanox.com>
---
.../selftests/drivers/net/mlxsw/router_scale.sh | 167 +++++++++++++++++++++
1 file changed, 167 insertions(+)
create mode 100644 tools/testing/selftests/drivers/net/mlxsw/router_scale.sh
diff --git a/tools/testing/selftests/drivers/net/mlxsw/router_scale.sh b/tools/testing/selftests/drivers/net/mlxsw/router_scale.sh
new file mode 100644
index 000000000000..d231649b4f01
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/mlxsw/router_scale.sh
@@ -0,0 +1,167 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+ROUTER_NUM_NETIFS=4
+
+router_h1_create()
+{
+ simple_if_init $h1 192.0.1.1/24
+ ip route add 193.0.0.0/8 via 192.0.1.2 dev $h1
+}
+
+router_h1_destroy()
+{
+ ip route del 193.0.0.0/8 via 192.0.1.2 dev $h1
+ simple_if_fini $h1 192.0.1.1/24
+}
+
+router_h2_create()
+{
+ simple_if_init $h2 192.0.2.1/24
+ tc qdisc add dev $h2 handle ffff: ingress
+}
+
+router_h2_destroy()
+{
+ tc qdisc del dev $h2 handle ffff: ingress
+ simple_if_fini $h2 192.0.2.1/24
+}
+
+router_create()
+{
+ ip link set dev $rp1 up
+ ip link set dev $rp2 up
+
+ ip address add 192.0.1.2/24 dev $rp1
+ ip address add 192.0.2.2/24 dev $rp2
+}
+
+router_destroy()
+{
+ ip address del 192.0.2.2/24 dev $rp2
+ ip address del 192.0.1.2/24 dev $rp1
+
+ ip link set dev $rp2 down
+ ip link set dev $rp1 down
+}
+
+router_setup_prepare()
+{
+ h1=${NETIFS[p1]}
+ rp1=${NETIFS[p2]}
+
+ rp2=${NETIFS[p3]}
+ h2=${NETIFS[p4]}
+
+ h1mac=$(mac_get $h1)
+ rp1mac=$(mac_get $rp1)
+
+ vrf_prepare
+
+ router_h1_create
+ router_h2_create
+
+ router_create
+}
+
+router_offload_validate()
+{
+ local route_count=$1
+ local offloaded_count
+
+ offloaded_count=$(ip route | grep -o 'offload' | wc -l)
+ [[ $offloaded_count -ge $route_count ]]
+}
+
+router_routes_create()
+{
+ local route_count=$1
+ local count=0
+
+ ROUTE_FILE="$(mktemp)"
+
+ for i in {0..255}
+ do
+ for j in {0..255}
+ do
+ for k in {0..255}
+ do
+ if [[ $count -eq $route_count ]]; then
+ break 3
+ fi
+
+ echo route add 193.${i}.${j}.${k}/32 via \
+ 192.0.2.1 dev $rp2 >> $ROUTE_FILE
+ ((count++))
+ done
+ done
+ done
+
+ ip -b $ROUTE_FILE &> /dev/null
+}
+
+router_routes_destroy()
+{
+ if [[ -v ROUTE_FILE ]]; then
+ rm -f $ROUTE_FILE
+ fi
+}
+
+router_test()
+{
+ local route_count=$1
+ local should_fail=$2
+ local count=0
+
+ RET=0
+
+ router_routes_create $route_count
+
+ router_offload_validate $route_count
+ check_err_fail $should_fail $? "Offload of $route_count routes"
+ if [[ $RET -ne 0 ]] || [[ $should_fail -eq 1 ]]; then
+ return
+ fi
+
+ tc filter add dev $h2 ingress protocol ip pref 1 flower \
+ skip_sw dst_ip 193.0.0.0/8 action drop
+
+ for i in {0..255}
+ do
+ for j in {0..255}
+ do
+ for k in {0..255}
+ do
+ if [[ $count -eq $route_count ]]; then
+ break 3
+ fi
+
+ $MZ $h1 -c 1 -p 64 -a $h1mac -b $rp1mac \
+ -A 192.0.1.1 -B 193.${i}.${j}.${k} \
+ -t ip -q
+ ((count++))
+ done
+ done
+ done
+
+ tc_check_packets "dev $h2 ingress" 1 $route_count
+ check_err $? "Offload mismatch"
+
+ tc filter del dev $h2 ingress protocol ip pref 1 flower \
+ skip_sw dst_ip 193.0.0.0/8 action drop
+
+ router_routes_destroy
+}
+
+router_cleanup()
+{
+ pre_cleanup
+
+ router_routes_destroy
+ router_destroy
+
+ router_h2_destroy
+ router_h1_destroy
+
+ vrf_cleanup
+}
--
2.4.11
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