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Message-Id: <20200114112318.876378-10-idosch@idosch.org>
Date: Tue, 14 Jan 2020 13:23:17 +0200
From: Ido Schimmel <idosch@...sch.org>
To: netdev@...r.kernel.org
Cc: davem@...emloft.net, kuba@...nel.org, jiri@...lanox.com,
dsahern@...il.com, roopa@...ulusnetworks.com, mlxsw@...lanox.com,
Ido Schimmel <idosch@...lanox.com>
Subject: [PATCH net-next v2 09/10] selftests: netdevsim: Add test for FIB offload API
From: Ido Schimmel <idosch@...lanox.com>
Test various aspects of the FIB offload API on top of the netdevsim
implementation. Both good and bad flows are tested.
Signed-off-by: Ido Schimmel <idosch@...lanox.com>
Acked-by: Jiri Pirko <jiri@...lanox.com>
---
.../selftests/drivers/net/netdevsim/fib.sh | 341 ++++++++++++++++++
1 file changed, 341 insertions(+)
create mode 100755 tools/testing/selftests/drivers/net/netdevsim/fib.sh
diff --git a/tools/testing/selftests/drivers/net/netdevsim/fib.sh b/tools/testing/selftests/drivers/net/netdevsim/fib.sh
new file mode 100755
index 000000000000..2f87c3be76a9
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/netdevsim/fib.sh
@@ -0,0 +1,341 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# This test is for checking the FIB offload API. It makes use of netdevsim
+# which registers a listener to the FIB notification chain.
+
+lib_dir=$(dirname $0)/../../../net/forwarding
+
+ALL_TESTS="
+ ipv4_identical_routes
+ ipv4_tos
+ ipv4_metric
+ ipv4_replace
+ ipv4_delete
+ ipv4_plen
+ ipv4_replay
+ ipv4_flush
+ ipv4_error_path
+ ipv6_add
+ ipv6_metric
+ ipv6_append_single
+ ipv6_replace_single
+ ipv6_metric_multipath
+ ipv6_append_multipath
+ ipv6_replace_multipath
+ ipv6_append_multipath_to_single
+ ipv6_delete_single
+ ipv6_delete_multipath
+ ipv6_replay_single
+ ipv6_replay_multipath
+ ipv6_error_path
+"
+NETDEVSIM_PATH=/sys/bus/netdevsim/
+DEV_ADDR=1337
+DEV=netdevsim${DEV_ADDR}
+DEVLINK_DEV=netdevsim/${DEV}
+SYSFS_NET_DIR=/sys/bus/netdevsim/devices/$DEV/net/
+NUM_NETIFS=0
+source $lib_dir/lib.sh
+source $lib_dir/devlink_lib.sh
+source $lib_dir/fib_offload_lib.sh
+
+ipv4_identical_routes()
+{
+ fib_ipv4_identical_routes_test "testns1"
+}
+
+ipv4_tos()
+{
+ fib_ipv4_tos_test "testns1"
+}
+
+ipv4_metric()
+{
+ fib_ipv4_metric_test "testns1"
+}
+
+ipv4_replace()
+{
+ fib_ipv4_replace_test "testns1"
+}
+
+ipv4_delete()
+{
+ fib_ipv4_delete_test "testns1"
+}
+
+ipv4_plen()
+{
+ fib_ipv4_plen_test "testns1"
+}
+
+ipv4_replay_metric()
+{
+ fib_ipv4_replay_metric_test "testns1" "$DEVLINK_DEV"
+}
+
+ipv4_replay_tos()
+{
+ fib_ipv4_replay_tos_test "testns1" "$DEVLINK_DEV"
+}
+
+ipv4_replay_plen()
+{
+ fib_ipv4_replay_plen_test "testns1" "$DEVLINK_DEV"
+}
+
+ipv4_replay()
+{
+ ipv4_replay_metric
+ ipv4_replay_tos
+ ipv4_replay_plen
+}
+
+ipv4_flush()
+{
+ fib_ipv4_flush_test "testns1"
+}
+
+ipv4_error_path_add()
+{
+ local lsb
+
+ RET=0
+
+ ip -n testns1 link add name dummy1 type dummy
+ ip -n testns1 link set dev dummy1 up
+
+ devlink -N testns1 resource set $DEVLINK_DEV path IPv4/fib size 10
+ devlink -N testns1 dev reload $DEVLINK_DEV
+
+ for lsb in $(seq 1 20); do
+ ip -n testns1 route add 192.0.2.${lsb}/32 dev dummy1 \
+ &> /dev/null
+ done
+
+ log_test "IPv4 error path - add"
+
+ ip -n testns1 link del dev dummy1
+}
+
+ipv4_error_path_replay()
+{
+ local lsb
+
+ RET=0
+
+ ip -n testns1 link add name dummy1 type dummy
+ ip -n testns1 link set dev dummy1 up
+
+ devlink -N testns1 resource set $DEVLINK_DEV path IPv4/fib size 100
+ devlink -N testns1 dev reload $DEVLINK_DEV
+
+ for lsb in $(seq 1 20); do
+ ip -n testns1 route add 192.0.2.${lsb}/32 dev dummy1
+ done
+
+ devlink -N testns1 resource set $DEVLINK_DEV path IPv4/fib size 10
+ devlink -N testns1 dev reload $DEVLINK_DEV &> /dev/null
+
+ log_test "IPv4 error path - replay"
+
+ ip -n testns1 link del dev dummy1
+
+ # Successfully reload after deleting all the routes.
+ devlink -N testns1 resource set $DEVLINK_DEV path IPv4/fib size 100
+ devlink -N testns1 dev reload $DEVLINK_DEV
+}
+
+ipv4_error_path()
+{
+ # Test the different error paths of the notifiers by limiting the size
+ # of the "IPv4/fib" resource.
+ ipv4_error_path_add
+ ipv4_error_path_replay
+}
+
+ipv6_add()
+{
+ fib_ipv6_add_test "testns1"
+}
+
+ipv6_metric()
+{
+ fib_ipv6_metric_test "testns1"
+}
+
+ipv6_append_single()
+{
+ fib_ipv6_append_single_test "testns1"
+}
+
+ipv6_replace_single()
+{
+ fib_ipv6_replace_single_test "testns1"
+}
+
+ipv6_metric_multipath()
+{
+ fib_ipv6_metric_multipath_test "testns1"
+}
+
+ipv6_append_multipath()
+{
+ fib_ipv6_append_multipath_test "testns1"
+}
+
+ipv6_replace_multipath()
+{
+ fib_ipv6_replace_multipath_test "testns1"
+}
+
+ipv6_append_multipath_to_single()
+{
+ fib_ipv6_append_multipath_to_single_test "testns1"
+}
+
+ipv6_delete_single()
+{
+ fib_ipv6_delete_single_test "testns1"
+}
+
+ipv6_delete_multipath()
+{
+ fib_ipv6_delete_multipath_test "testns1"
+}
+
+ipv6_replay_single()
+{
+ fib_ipv6_replay_single_test "testns1" "$DEVLINK_DEV"
+}
+
+ipv6_replay_multipath()
+{
+ fib_ipv6_replay_multipath_test "testns1" "$DEVLINK_DEV"
+}
+
+ipv6_error_path_add_single()
+{
+ local lsb
+
+ RET=0
+
+ ip -n testns1 link add name dummy1 type dummy
+ ip -n testns1 link set dev dummy1 up
+
+ devlink -N testns1 resource set $DEVLINK_DEV path IPv6/fib size 10
+ devlink -N testns1 dev reload $DEVLINK_DEV
+
+ for lsb in $(seq 1 20); do
+ ip -n testns1 route add 2001:db8:1::${lsb}/128 dev dummy1 \
+ &> /dev/null
+ done
+
+ log_test "IPv6 error path - add single"
+
+ ip -n testns1 link del dev dummy1
+}
+
+ipv6_error_path_add_multipath()
+{
+ local lsb
+
+ RET=0
+
+ for i in $(seq 1 2); do
+ ip -n testns1 link add name dummy$i type dummy
+ ip -n testns1 link set dev dummy$i up
+ ip -n testns1 address add 2001:db8:$i::1/64 dev dummy$i
+ done
+
+ devlink -N testns1 resource set $DEVLINK_DEV path IPv6/fib size 10
+ devlink -N testns1 dev reload $DEVLINK_DEV
+
+ for lsb in $(seq 1 20); do
+ ip -n testns1 route add 2001:db8:10::${lsb}/128 \
+ nexthop via 2001:db8:1::2 dev dummy1 \
+ nexthop via 2001:db8:2::2 dev dummy2 &> /dev/null
+ done
+
+ log_test "IPv6 error path - add multipath"
+
+ for i in $(seq 1 2); do
+ ip -n testns1 link del dev dummy$i
+ done
+}
+
+ipv6_error_path_replay()
+{
+ local lsb
+
+ RET=0
+
+ ip -n testns1 link add name dummy1 type dummy
+ ip -n testns1 link set dev dummy1 up
+
+ devlink -N testns1 resource set $DEVLINK_DEV path IPv6/fib size 100
+ devlink -N testns1 dev reload $DEVLINK_DEV
+
+ for lsb in $(seq 1 20); do
+ ip -n testns1 route add 2001:db8:1::${lsb}/128 dev dummy1
+ done
+
+ devlink -N testns1 resource set $DEVLINK_DEV path IPv6/fib size 10
+ devlink -N testns1 dev reload $DEVLINK_DEV &> /dev/null
+
+ log_test "IPv6 error path - replay"
+
+ ip -n testns1 link del dev dummy1
+
+ # Successfully reload after deleting all the routes.
+ devlink -N testns1 resource set $DEVLINK_DEV path IPv6/fib size 100
+ devlink -N testns1 dev reload $DEVLINK_DEV
+}
+
+ipv6_error_path()
+{
+ # Test the different error paths of the notifiers by limiting the size
+ # of the "IPv6/fib" resource.
+ ipv6_error_path_add_single
+ ipv6_error_path_add_multipath
+ ipv6_error_path_replay
+}
+
+setup_prepare()
+{
+ local netdev
+
+ modprobe netdevsim &> /dev/null
+
+ echo "$DEV_ADDR 1" > ${NETDEVSIM_PATH}/new_device
+ while [ ! -d $SYSFS_NET_DIR ] ; do :; done
+
+ ip netns add testns1
+ if [ $? -ne 0 ]; then
+ echo "Failed to add netns \"testns1\""
+ exit 1
+ fi
+
+ devlink dev reload $DEVLINK_DEV netns testns1
+ if [ $? -ne 0 ]; then
+ echo "Failed to reload into netns \"testns1\""
+ exit 1
+ fi
+}
+
+cleanup()
+{
+ pre_cleanup
+ ip netns del testns1
+ echo "$DEV_ADDR" > ${NETDEVSIM_PATH}/del_device
+ modprobe -r netdevsim &> /dev/null
+}
+
+trap cleanup EXIT
+
+setup_prepare
+
+tests_run
+
+exit $EXIT_STATUS
--
2.24.1
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