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Message-Id: <d7902978499da81c6fa8bc530d16e2f71f84c0f1.1660098382.git.jtoppins@redhat.com>
Date: Tue, 9 Aug 2022 22:33:21 -0400
From: Jonathan Toppins <jtoppins@...hat.com>
To: netdev@...r.kernel.org
Cc: liuhangbin@...il.com, Shuah Khan <shuah@...nel.org>,
linux-kernel@...r.kernel.org, linux-kselftest@...r.kernel.org
Subject: [PATCH net v2 1/2] selftests: include bonding tests into the kselftest infra
This creates a test collection in drivers/net/bonding for bonding
specific kernel selftests.
The first test is a reproducer that provisions a bond and given the
specific order in how the ip-link(8) commands are issued the bond never
transmits an LACPDU frame on any of its slaves.
Signed-off-by: Jonathan Toppins <jtoppins@...hat.com>
---
Notes:
v2:
* fully integrated the test into the kselftests infrastructure
* moved the reproducer to under
tools/testing/selftests/drivers/net/bonding
* reduced the test to its minimial amount and used ip-link(8) for
all bond interface configuration
MAINTAINERS | 1 +
tools/testing/selftests/Makefile | 1 +
.../selftests/drivers/net/bonding/Makefile | 6 ++
.../net/bonding/bond-break-lacpdu-tx.sh | 82 +++++++++++++++++++
.../selftests/drivers/net/bonding/config | 1 +
.../selftests/drivers/net/bonding/settings | 1 +
6 files changed, 92 insertions(+)
create mode 100644 tools/testing/selftests/drivers/net/bonding/Makefile
create mode 100755 tools/testing/selftests/drivers/net/bonding/bond-break-lacpdu-tx.sh
create mode 100644 tools/testing/selftests/drivers/net/bonding/config
create mode 100644 tools/testing/selftests/drivers/net/bonding/settings
diff --git a/MAINTAINERS b/MAINTAINERS
index 386178699ae7..6e7cebc1bca3 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -3636,6 +3636,7 @@ F: Documentation/networking/bonding.rst
F: drivers/net/bonding/
F: include/net/bond*
F: include/uapi/linux/if_bonding.h
+F: tools/testing/selftests/net/bonding/
BOSCH SENSORTEC BMA400 ACCELEROMETER IIO DRIVER
M: Dan Robertson <dan@...obertson.com>
diff --git a/tools/testing/selftests/Makefile b/tools/testing/selftests/Makefile
index 5047d8eef53e..86f5f6d65526 100644
--- a/tools/testing/selftests/Makefile
+++ b/tools/testing/selftests/Makefile
@@ -12,6 +12,7 @@ TARGETS += cpu-hotplug
TARGETS += damon
TARGETS += drivers/dma-buf
TARGETS += drivers/s390x/uvdevice
+TARGETS += drivers/net/bonding
TARGETS += efivarfs
TARGETS += exec
TARGETS += filesystems
diff --git a/tools/testing/selftests/drivers/net/bonding/Makefile b/tools/testing/selftests/drivers/net/bonding/Makefile
new file mode 100644
index 000000000000..ab6c54b12098
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/bonding/Makefile
@@ -0,0 +1,6 @@
+# SPDX-License-Identifier: GPL-2.0
+# Makefile for net selftests
+
+TEST_PROGS := bond-break-lacpdu-tx.sh
+
+include ../../../lib.mk
diff --git a/tools/testing/selftests/drivers/net/bonding/bond-break-lacpdu-tx.sh b/tools/testing/selftests/drivers/net/bonding/bond-break-lacpdu-tx.sh
new file mode 100755
index 000000000000..a4f174aeabd9
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/bonding/bond-break-lacpdu-tx.sh
@@ -0,0 +1,82 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+
+# Regression Test:
+# Verify LACPDUs get transmitted after setting the MAC address of
+# the bond.
+#
+# https://bugzilla.redhat.com/show_bug.cgi?id=2020773
+#
+# +---------+
+# | fab-br0 |
+# +---------+
+# |
+# +---------+
+# | fbond |
+# +---------+
+# | |
+# +------+ +------+
+# |veth1 | |veth2 |
+# +------+ +------+
+#
+# We use veths instead of physical interfaces
+
+set -e
+#set -x
+tmp=$(mktemp -q dump.XXXXXX)
+cleanup() {
+ ip link del fab-br0 >/dev/null 2>&1 || :
+ ip link del fbond >/dev/null 2>&1 || :
+ ip link del veth1-bond >/dev/null 2>&1 || :
+ ip link del veth2-bond >/dev/null 2>&1 || :
+ modprobe -r bonding >/dev/null 2>&1 || :
+ rm -f -- ${tmp}
+}
+
+trap cleanup 0 1 2
+cleanup
+sleep 1
+
+# create the bridge
+ip link add fab-br0 address 52:54:00:3B:7C:A6 mtu 1500 type bridge \
+ forward_delay 15
+
+# create the bond
+ip link add fbond type bond mode 4 miimon 200 xmit_hash_policy 1 \
+ ad_actor_sys_prio 65535 lacp_rate fast
+
+# set bond address
+ip link set fbond address 52:54:00:3B:7C:A6
+ip link set fbond up
+
+# set again bond sysfs parameters
+ip link set fbond type bond ad_actor_sys_prio 65535
+
+# create veths
+ip link add name veth1-bond type veth peer name veth1-end
+ip link add name veth2-bond type veth peer name veth2-end
+
+# add ports
+ip link set fbond master fab-br0
+ip link set veth1-bond down master fbond
+ip link set veth2-bond down master fbond
+
+# bring up
+ip link set veth1-end up
+ip link set veth2-end up
+ip link set fab-br0 up
+ip link set fbond up
+ip addr add dev fab-br0 10.0.0.3
+
+tcpdump -n -i veth1-end -e ether proto 0x8809 >${tmp} 2>&1 &
+sleep 15
+pkill tcpdump >/dev/null 2>&1
+rc=0
+num=$(grep "packets captured" ${tmp} | awk '{print $1}')
+if test "$num" -gt 0; then
+ echo "PASS, captured ${num}"
+else
+ echo "FAIL"
+ rc=1
+fi
+exit $rc
diff --git a/tools/testing/selftests/drivers/net/bonding/config b/tools/testing/selftests/drivers/net/bonding/config
new file mode 100644
index 000000000000..dc1c22de3c92
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/bonding/config
@@ -0,0 +1 @@
+CONFIG_BONDING=y
diff --git a/tools/testing/selftests/drivers/net/bonding/settings b/tools/testing/selftests/drivers/net/bonding/settings
new file mode 100644
index 000000000000..867e118223cd
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/bonding/settings
@@ -0,0 +1 @@
+timeout=60
--
2.31.1
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