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Message-ID: <20250814104256.18372-4-liuhangbin@gmail.com>
Date: Thu, 14 Aug 2025 10:42:56 +0000
From: Hangbin Liu <liuhangbin@...il.com>
To: netdev@...r.kernel.org
Cc: Jay Vosburgh <jv@...sburgh.net>,
Andrew Lunn <andrew+netdev@...n.ch>,
"David S. Miller" <davem@...emloft.net>,
Eric Dumazet <edumazet@...gle.com>,
Jakub Kicinski <kuba@...nel.org>,
Paolo Abeni <pabeni@...hat.com>,
Nikolay Aleksandrov <razor@...ckwall.org>,
Simon Horman <horms@...nel.org>,
Shuah Khan <shuah@...nel.org>,
Jonathan Corbet <corbet@....net>,
Petr Machata <petrm@...dia.com>,
Amit Cohen <amcohen@...dia.com>,
Vladimir Oltean <vladimir.oltean@....com>,
Stephen Hemminger <stephen@...workplumber.org>,
David Ahern <dsahern@...il.com>,
linux-doc@...r.kernel.org,
linux-kselftest@...r.kernel.org,
Hangbin Liu <liuhangbin@...il.com>
Subject: [PATCHv2 net-next 3/3] selftests: bonding: add test for LACP actor port priority
Add comprehensive selftest to verify:
- Per-port actor priority setting via ad_actor_port_prio
- Aggregator selection behavior with port_priority ad_select policy
Also move cmd_jq helper from forwarding/lib.sh to net/lib.sh for
broader reusability across network selftests.
Here is the result output
# ./bond_lacp_prio.sh
TEST: bond 802.3ad (ad_actor_port_prio setting) [ OK ]
TEST: bond 802.3ad (ad_actor_port_prio select) [ OK ]
TEST: bond 802.3ad (ad_actor_port_prio switch) [ OK ]
Signed-off-by: Hangbin Liu <liuhangbin@...il.com>
---
.../selftests/drivers/net/bonding/Makefile | 3 +-
.../drivers/net/bonding/bond_lacp_prio.sh | 93 +++++++++++++++++++
tools/testing/selftests/net/forwarding/lib.sh | 24 -----
tools/testing/selftests/net/lib.sh | 24 +++++
4 files changed, 119 insertions(+), 25 deletions(-)
create mode 100755 tools/testing/selftests/drivers/net/bonding/bond_lacp_prio.sh
diff --git a/tools/testing/selftests/drivers/net/bonding/Makefile b/tools/testing/selftests/drivers/net/bonding/Makefile
index 2b10854e4b1e..32617a834a6b 100644
--- a/tools/testing/selftests/drivers/net/bonding/Makefile
+++ b/tools/testing/selftests/drivers/net/bonding/Makefile
@@ -10,7 +10,8 @@ TEST_PROGS := \
mode-2-recovery-updelay.sh \
bond_options.sh \
bond-eth-type-change.sh \
- bond_macvlan_ipvlan.sh
+ bond_macvlan_ipvlan.sh \
+ bond_lacp_prio.sh
TEST_FILES := \
lag_lib.sh \
diff --git a/tools/testing/selftests/drivers/net/bonding/bond_lacp_prio.sh b/tools/testing/selftests/drivers/net/bonding/bond_lacp_prio.sh
new file mode 100755
index 000000000000..c278e5ec76e0
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/bonding/bond_lacp_prio.sh
@@ -0,0 +1,93 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# Testing if bond lacp per port priority works
+#
+# Switch (s_ns) Backup Switch (b_ns)
+# +-------------------------+ +-------------------------+
+# | bond0 | | bond0 |
+# | + | | + |
+# | eth0 | eth1 | | eth0 | eth1 |
+# | +---+---+ | | +---+---+ |
+# | | | | | | | |
+# +-------------------------+ +-------------------------+
+# | | | |
+# +-----------------------------------------------------+
+# | | | | | |
+# | +-------+---------+---------+-------+ |
+# | eth0 eth1 | eth2 eth3 |
+# | + |
+# | bond0 |
+# +-----------------------------------------------------+
+# Client (c_ns)
+
+lib_dir=$(dirname "$0")
+# shellcheck disable=SC1091
+source "$lib_dir"/../../../net/lib.sh
+RET=0
+
+trap cleanup_all_ns EXIT
+# create client, switch, backup switch netns
+setup_ns c_ns s_ns b_ns
+
+# setup links
+# shellcheck disable=SC2154
+ip -n "${c_ns}" link add eth0 type veth peer name eth0 netns "${s_ns}"
+ip -n "${c_ns}" link add eth1 type veth peer name eth1 netns "${s_ns}"
+# shellcheck disable=SC2154
+ip -n "${c_ns}" link add eth2 type veth peer name eth0 netns "${b_ns}"
+ip -n "${c_ns}" link add eth3 type veth peer name eth1 netns "${b_ns}"
+
+ip -n "${c_ns}" link add bond0 type bond mode 802.3ad miimon 100 lacp_rate fast ad_select prio
+ip -n "${s_ns}" link add bond0 type bond mode 802.3ad miimon 100 lacp_rate fast
+ip -n "${b_ns}" link add bond0 type bond mode 802.3ad miimon 100 lacp_rate fast
+
+ip -n "${c_ns}" link set eth0 master bond0
+ip -n "${c_ns}" link set eth1 master bond0
+ip -n "${c_ns}" link set eth2 master bond0
+ip -n "${c_ns}" link set eth3 master bond0
+ip -n "${s_ns}" link set eth0 master bond0
+ip -n "${s_ns}" link set eth1 master bond0
+ip -n "${b_ns}" link set eth0 master bond0
+ip -n "${b_ns}" link set eth1 master bond0
+
+ip -n "${c_ns}" link set bond0 up
+ip -n "${s_ns}" link set bond0 up
+ip -n "${b_ns}" link set bond0 up
+
+# set ad actor port priority, default 255
+ip -n "${c_ns}" link set eth0 type bond_slave ad_actor_port_prio 1000
+prio=$(cmd_jq "ip -n ${c_ns} -d -j link show eth0" ".[].linkinfo.info_slave_data.ad_actor_port_prio")
+[ "$prio" -ne 1000 ] && RET=1
+ip -n "${c_ns}" link set eth2 type bond_slave ad_actor_port_prio 10
+prio=$(cmd_jq "ip -n ${c_ns} -d -j link show eth2" ".[].linkinfo.info_slave_data.ad_actor_port_prio")
+[ "$prio" -ne 10 ] && RET=1
+log_test "bond 802.3ad" "ad_actor_port_prio setting"
+
+# Trigger link state change to reselect the aggregator
+ip -n "${c_ns}" link set eth1 down
+sleep 1
+ip -n "${c_ns}" link set eth1 up
+# the active agg should be connect to switch
+bond_agg_id=$(cmd_jq "ip -n ${c_ns} -d -j link show bond0" ".[].linkinfo.info_data.ad_info.aggregator")
+eth0_agg_id=$(cmd_jq "ip -n ${c_ns} -d -j link show eth0" ".[].linkinfo.info_slave_data.ad_aggregator_id")
+[ "${bond_agg_id}" -ne "${eth0_agg_id}" ] && RET=1
+log_test "bond 802.3ad" "ad_actor_port_prio select"
+
+# Change the actor port prio and re-test
+ip -n "${c_ns}" link set eth0 type bond_slave ad_actor_port_prio 10
+ip -n "${c_ns}" link set eth2 type bond_slave ad_actor_port_prio 1000
+# Trigger link state change to reselect the aggregator
+ip -n "${c_ns}" link set eth1 down
+sleep 1
+ip -n "${c_ns}" link set eth1 up
+# now the active agg should be connect to backup switch
+bond_agg_id=$(cmd_jq "ip -n ${c_ns} -d -j link show bond0" ".[].linkinfo.info_data.ad_info.aggregator")
+eth2_agg_id=$(cmd_jq "ip -n ${c_ns} -d -j link show eth2" ".[].linkinfo.info_slave_data.ad_aggregator_id")
+# shellcheck disable=SC2034
+if [ "${bond_agg_id}" -ne "${eth2_agg_id}" ]; then
+ RET=1
+fi
+log_test "bond 802.3ad" "ad_actor_port_prio switch"
+
+exit "${EXIT_STATUS}"
diff --git a/tools/testing/selftests/net/forwarding/lib.sh b/tools/testing/selftests/net/forwarding/lib.sh
index 890b3374dacd..08121cb9dc26 100644
--- a/tools/testing/selftests/net/forwarding/lib.sh
+++ b/tools/testing/selftests/net/forwarding/lib.sh
@@ -571,30 +571,6 @@ wait_for_dev()
fi
}
-cmd_jq()
-{
- local cmd=$1
- local jq_exp=$2
- local jq_opts=$3
- local ret
- local output
-
- output="$($cmd)"
- # it the command fails, return error right away
- ret=$?
- if [[ $ret -ne 0 ]]; then
- return $ret
- fi
- output=$(echo $output | jq -r $jq_opts "$jq_exp")
- ret=$?
- if [[ $ret -ne 0 ]]; then
- return $ret
- fi
- echo $output
- # return success only in case of non-empty output
- [ ! -z "$output" ]
-}
-
pre_cleanup()
{
if [ "${PAUSE_ON_CLEANUP}" = "yes" ]; then
diff --git a/tools/testing/selftests/net/lib.sh b/tools/testing/selftests/net/lib.sh
index c7add0dc4c60..4dca6893aa8a 100644
--- a/tools/testing/selftests/net/lib.sh
+++ b/tools/testing/selftests/net/lib.sh
@@ -645,3 +645,27 @@ wait_local_port_listen()
sleep 0.1
done
}
+
+cmd_jq()
+{
+ local cmd=$1
+ local jq_exp=$2
+ local jq_opts=$3
+ local ret
+ local output
+
+ output="$($cmd)"
+ # it the command fails, return error right away
+ ret=$?
+ if [[ $ret -ne 0 ]]; then
+ return $ret
+ fi
+ output=$(echo $output | jq -r $jq_opts "$jq_exp")
+ ret=$?
+ if [[ $ret -ne 0 ]]; then
+ return $ret
+ fi
+ echo $output
+ # return success only in case of non-empty output
+ [ ! -z "$output" ]
+}
--
2.50.1
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