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Message-ID: <4f2d65bf06dff74a97649f8234c1f1f7d01d3ce7.1690815746.git.petrm@nvidia.com>
Date: Mon, 31 Jul 2023 17:47:18 +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: Ido Schimmel <idosch@...dia.com>, Petr Machata <petrm@...dia.com>,
Danielle Ratson <danieller@...dia.com>, <mlxsw@...dia.com>
Subject: [PATCH net-next 4/8] selftests: router_bridge_lag: Add a new selftest
Add a selftest to verify that routing through a bridge works when LAG is
used instead of physical ports.
Signed-off-by: Petr Machata <petrm@...dia.com>
Reviewed-by: Danielle Ratson <danieller@...dia.com>
---
.../testing/selftests/net/forwarding/Makefile | 1 +
.../net/forwarding/router_bridge_lag.sh | 323 ++++++++++++++++++
2 files changed, 324 insertions(+)
create mode 100755 tools/testing/selftests/net/forwarding/router_bridge_lag.sh
diff --git a/tools/testing/selftests/net/forwarding/Makefile b/tools/testing/selftests/net/forwarding/Makefile
index 44a0308d8bc2..2fd0f4f87210 100644
--- a/tools/testing/selftests/net/forwarding/Makefile
+++ b/tools/testing/selftests/net/forwarding/Makefile
@@ -65,6 +65,7 @@ TEST_PROGS = bridge_igmp.sh \
q_in_vni.sh \
router_bridge.sh \
router_bridge_1d.sh \
+ router_bridge_lag.sh \
router_bridge_vlan.sh \
router_bridge_vlan_upper.sh \
router_bridge_pvid_vlan_upper.sh \
diff --git a/tools/testing/selftests/net/forwarding/router_bridge_lag.sh b/tools/testing/selftests/net/forwarding/router_bridge_lag.sh
new file mode 100755
index 000000000000..f05ffe213c46
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/router_bridge_lag.sh
@@ -0,0 +1,323 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# +----------------------------+ +--------------------------+
+# | H1 (vrf) | | H2 (vrf) |
+# | | | |
+# | + LAG1 (team) | | + LAG4 (team) |
+# | | 192.0.2.1/28 | | | 192.0.2.130/28 |
+# | | 2001:db8:1::1/64 | | | 2001:db8:2::2/64 |
+# | __^___ | | __^_____ |
+# | / \ | | / \ |
+# | + $h1 + $h4 | | + $h2 + $h3 |
+# | | | | | | | |
+# +----|--------|--------------+ +-|----------|-------------+
+# | | | |
+# +----|--------|------------------------------------|----------|-------------+
+# | SW | | | | |
+# | + $swp1 + $swp4 + $swp2 + $swp3 |
+# | \__ ___/ \__ _____/ |
+# | v v |
+# | +------|-------------------------------+ | |
+# | | + LAG2 BR1 (802.1q) | + LAG3 (team) |
+# | | (team) 192.0.2.2/28 | 192.0.2.129/28 |
+# | | 2001:db8:1::2/64 | 2001:db8:2::1/64 |
+# | | | |
+# | +--------------------------------------+ |
+# +---------------------------------------------------------------------------+
+
+: ${ALL_TESTS:="
+ ping_ipv4
+ ping_ipv6
+
+ $(: exercise remastering of LAG2 slaves )
+ config_deslave_swp4
+ config_wait
+ ping_ipv4
+ ping_ipv6
+ config_enslave_swp4
+ config_deslave_swp1
+ config_wait
+ ping_ipv4
+ ping_ipv6
+ config_deslave_swp4
+ config_enslave_swp1
+ config_enslave_swp4
+ config_wait
+ ping_ipv4
+ ping_ipv6
+
+ $(: exercise remastering of LAG2 itself )
+ config_remaster_lag2
+ config_wait
+ ping_ipv4
+ ping_ipv6
+
+ $(: exercise remastering of LAG3 slaves )
+ config_deslave_swp2
+ config_wait
+ ping_ipv4
+ ping_ipv6
+ config_enslave_swp2
+ config_deslave_swp3
+ config_wait
+ ping_ipv4
+ ping_ipv6
+ config_deslave_swp2
+ config_enslave_swp3
+ config_enslave_swp2
+ config_wait
+ ping_ipv4
+ ping_ipv6
+
+ $(: move LAG3 to a bridge and then out )
+ config_remaster_lag3
+ config_wait
+ ping_ipv4
+ ping_ipv6
+ "}
+NUM_NETIFS=8
+: ${lib_dir:=.}
+source $lib_dir/lib.sh
+$EXTRA_SOURCE
+
+h1_create()
+{
+ team_create lag1 lacp
+ ip link set dev lag1 address $(mac_get $h1)
+ ip link set dev $h1 master lag1
+ ip link set dev $h4 master lag1
+ simple_if_init lag1 192.0.2.1/28 2001:db8:1::1/64
+ ip link set dev $h1 up
+ ip link set dev $h4 up
+ ip -4 route add 192.0.2.128/28 vrf vlag1 nexthop via 192.0.2.2
+ ip -6 route add 2001:db8:2::/64 vrf vlag1 nexthop via 2001:db8:1::2
+}
+
+h1_destroy()
+{
+ ip -6 route del 2001:db8:2::/64 vrf vlag1
+ ip -4 route del 192.0.2.128/28 vrf vlag1
+ ip link set dev $h4 down
+ ip link set dev $h1 down
+ simple_if_fini lag1 192.0.2.1/28 2001:db8:1::1/64
+ ip link set dev $h4 nomaster
+ ip link set dev $h1 nomaster
+ team_destroy lag1
+}
+
+h2_create()
+{
+ team_create lag4 lacp
+ ip link set dev lag4 address $(mac_get $h2)
+ ip link set dev $h2 master lag4
+ ip link set dev $h3 master lag4
+ simple_if_init lag4 192.0.2.130/28 2001:db8:2::2/64
+ ip link set dev $h2 up
+ ip link set dev $h3 up
+ ip -4 route add 192.0.2.0/28 vrf vlag4 nexthop via 192.0.2.129
+ ip -6 route add 2001:db8:1::/64 vrf vlag4 nexthop via 2001:db8:2::1
+}
+
+h2_destroy()
+{
+ ip -6 route del 2001:db8:1::/64 vrf vlag4
+ ip -4 route del 192.0.2.0/28 vrf vlag4
+ ip link set dev $h3 down
+ ip link set dev $h2 down
+ simple_if_fini lag4 192.0.2.130/28 2001:db8:2::2/64
+ ip link set dev $h3 nomaster
+ ip link set dev $h2 nomaster
+ team_destroy lag4
+}
+
+router_create()
+{
+ team_create lag2 lacp
+ ip link set dev lag2 address $(mac_get $swp1)
+ ip link set dev $swp1 master lag2
+ ip link set dev $swp4 master lag2
+
+ ip link add name br1 address $(mac_get lag2) \
+ type bridge vlan_filtering 1
+ ip link set dev lag2 master br1
+
+ ip link set dev $swp1 up
+ ip link set dev $swp4 up
+ ip link set dev br1 up
+
+ __addr_add_del br1 add 192.0.2.2/28 2001:db8:1::2/64
+
+ team_create lag3 lacp
+ ip link set dev lag3 address $(mac_get $swp2)
+ ip link set dev $swp2 master lag3
+ ip link set dev $swp3 master lag3
+ ip link set dev $swp2 up
+ ip link set dev $swp3 up
+ __addr_add_del lag3 add 192.0.2.129/28 2001:db8:2::1/64
+}
+
+router_destroy()
+{
+ __addr_add_del lag3 del 192.0.2.129/28 2001:db8:2::1/64
+ ip link set dev $swp3 down
+ ip link set dev $swp2 down
+ ip link set dev $swp3 nomaster
+ ip link set dev $swp2 nomaster
+ team_destroy lag3
+
+ __addr_add_del br1 del 192.0.2.2/28 2001:db8:1::2/64
+
+ ip link set dev $swp4 down
+ ip link set dev $swp1 down
+ ip link set dev br1 down
+
+ ip link set dev lag2 nomaster
+ ip link del dev br1
+
+ ip link set dev $swp4 nomaster
+ ip link set dev $swp1 nomaster
+ team_destroy lag2
+}
+
+config_remaster_lag2()
+{
+ log_info "Remaster bridge slave"
+
+ ip link set dev lag2 nomaster
+ sleep 2
+ ip link set dev lag2 master br1
+}
+
+config_remaster_lag3()
+{
+ log_info "Move lag3 to the bridge, then out again"
+
+ ip link set dev lag3 master br1
+ sleep 2
+ ip link set dev lag3 nomaster
+}
+
+config_deslave()
+{
+ local netdev=$1; shift
+
+ log_info "Deslave $netdev"
+ ip link set dev $netdev down
+ ip link set dev $netdev nomaster
+ ip link set dev $netdev up
+}
+
+config_deslave_swp1()
+{
+ config_deslave $swp1
+}
+
+config_deslave_swp2()
+{
+ config_deslave $swp2
+}
+
+config_deslave_swp3()
+{
+ config_deslave $swp3
+}
+
+config_deslave_swp4()
+{
+ config_deslave $swp4
+}
+
+config_enslave()
+{
+ local netdev=$1; shift
+ local master=$1; shift
+
+ log_info "Enslave $netdev to $master"
+ ip link set dev $netdev down
+ ip link set dev $netdev master $master
+ ip link set dev $netdev up
+}
+
+config_enslave_swp1()
+{
+ config_enslave $swp1 lag2
+}
+
+config_enslave_swp2()
+{
+ config_enslave $swp2 lag3
+}
+
+config_enslave_swp3()
+{
+ config_enslave $swp3 lag3
+}
+
+config_enslave_swp4()
+{
+ config_enslave $swp4 lag2
+}
+
+config_wait()
+{
+ setup_wait_dev lag2
+ setup_wait_dev lag3
+}
+
+setup_prepare()
+{
+ h1=${NETIFS[p1]}
+ swp1=${NETIFS[p2]}
+
+ swp2=${NETIFS[p3]}
+ h2=${NETIFS[p4]}
+
+ swp3=${NETIFS[p5]}
+ h3=${NETIFS[p6]}
+
+ h4=${NETIFS[p7]}
+ swp4=${NETIFS[p8]}
+
+ vrf_prepare
+
+ h1_create
+ h2_create
+
+ router_create
+
+ forwarding_enable
+}
+
+cleanup()
+{
+ pre_cleanup
+
+ forwarding_restore
+
+ router_destroy
+
+ h2_destroy
+ h1_destroy
+
+ vrf_cleanup
+}
+
+ping_ipv4()
+{
+ ping_test lag1 192.0.2.130
+}
+
+ping_ipv6()
+{
+ ping6_test lag1 2001:db8:2::2
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tests_run
+
+exit $EXIT_STATUS
--
2.41.0
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