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Message-ID: <c8fe5ce0559a9597e27a49eeb9b9c5a67ee50a0c.1766433800.git.fmaurer@redhat.com>
Date: Mon, 22 Dec 2025 21:57:31 +0100
From: Felix Maurer <fmaurer@...hat.com>
To: netdev@...r.kernel.org
Cc: davem@...emloft.net,
edumazet@...gle.com,
kuba@...nel.org,
pabeni@...hat.com,
horms@...nel.org,
jkarrenpalo@...il.com,
tglx@...utronix.de,
mingo@...nel.org,
allison.henderson@...cle.com,
matttbe@...nel.org,
petrm@...dia.com,
bigeasy@...utronix.de
Subject: [RFC net 1/6] selftests: hsr: Add ping test for PRP
Add a selftest for PRP that performs a basic ping test on IPv4 and IPv6,
over the plain PRP interface and a VLAN interface, similar to the existing
ping test for HSR. The test first checks reachability of of the other node,
then checks for no loss and no duplicates.
Signed-off-by: Felix Maurer <fmaurer@...hat.com>
---
tools/testing/selftests/net/hsr/Makefile | 1 +
tools/testing/selftests/net/hsr/prp_ping.sh | 141 ++++++++++++++++++++
2 files changed, 142 insertions(+)
create mode 100755 tools/testing/selftests/net/hsr/prp_ping.sh
diff --git a/tools/testing/selftests/net/hsr/Makefile b/tools/testing/selftests/net/hsr/Makefile
index 4b6afc0fe9f8..1886f345897a 100644
--- a/tools/testing/selftests/net/hsr/Makefile
+++ b/tools/testing/selftests/net/hsr/Makefile
@@ -5,6 +5,7 @@ top_srcdir = ../../../../..
TEST_PROGS := \
hsr_ping.sh \
hsr_redbox.sh \
+ prp_ping.sh \
# end of TEST_PROGS
TEST_FILES += hsr_common.sh
diff --git a/tools/testing/selftests/net/hsr/prp_ping.sh b/tools/testing/selftests/net/hsr/prp_ping.sh
new file mode 100755
index 000000000000..e326376b017b
--- /dev/null
+++ b/tools/testing/selftests/net/hsr/prp_ping.sh
@@ -0,0 +1,141 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+ipv6=true
+
+source ./hsr_common.sh
+
+optstring="h4"
+usage() {
+ echo "Usage: $0 [OPTION]"
+ echo -e "\t-4: IPv4 only: disable IPv6 tests (default: test both IPv4 and IPv6)"
+}
+
+while getopts "$optstring" option;do
+ case "$option" in
+ "h")
+ usage $0
+ exit 0
+ ;;
+ "4")
+ ipv6=false
+ ;;
+ "?")
+ usage $0
+ exit 1
+ ;;
+esac
+done
+
+setup_prp_interfaces()
+{
+ echo "INFO: Preparing interfaces for PRP"
+# Two PRP nodes, connected by two links (treated as LAN A and LAN B).
+#
+# vethA ----- vethA
+# prp1 prp2
+# vethB ----- vethB
+#
+# node1 node2
+
+ # Interfaces
+ ip link add vethA netns "$node1" type veth peer name vethA netns "$node2"
+ ip link add vethB netns "$node1" type veth peer name vethB netns "$node2"
+
+ # MAC addresses will be copied from LAN A interface
+ ip -net "$node1" link set address 00:11:22:00:00:01 dev vethA
+ ip -net "$node2" link set address 00:11:22:00:00:02 dev vethA
+
+ # PRP
+ ip -net "$node1" link add name prp1 type hsr slave1 vethA slave2 vethB supervision 45 proto 1
+ ip -net "$node2" link add name prp2 type hsr slave1 vethA slave2 vethB supervision 45 proto 1
+
+ # IP addresses
+ ip -net "$node1" addr add 100.64.0.1/24 dev prp1
+ ip -net "$node1" addr add dead:beef:0::1/64 dev prp1 nodad
+ ip -net "$node2" addr add 100.64.0.2/24 dev prp2
+ ip -net "$node2" addr add dead:beef:0::2/64 dev prp2 nodad
+
+ # All links up
+ ip -net "$node1" link set vethA up
+ ip -net "$node1" link set vethB up
+ ip -net "$node1" link set prp1 up
+
+ ip -net "$node2" link set vethA up
+ ip -net "$node2" link set vethB up
+ ip -net "$node2" link set prp2 up
+}
+
+setup_vlan_interfaces()
+{
+ # Interfaces
+ ip -net "$node1" link add link prp1 name prp1.2 type vlan id 2
+ ip -net "$node2" link add link prp2 name prp2.2 type vlan id 2
+
+ # IP addresses
+ ip -net "$node1" addr add 100.64.2.1/24 dev prp1.2
+ ip -net "$node1" addr add dead:beef:2::1/64 dev prp1.2 nodad
+
+ ip -net "$node2" addr add 100.64.2.2/24 dev prp2.2
+ ip -net "$node2" addr add dead:beef:2::2/64 dev prp2.2 nodad
+
+ # All links up
+ ip -net "$node1" link set prp1.2 up
+ ip -net "$node2" link set prp2.2 up
+}
+
+do_ping_tests()
+{
+ local netid="$1"
+
+ echo "INFO: Initial validation ping"
+
+ do_ping "$node1" 100.64.$netid.2
+ do_ping "$node2" 100.64.$netid.1
+ stop_if_error "Initial validation failed on IPv4"
+
+ do_ping "$node1" dead:beef:$netid::2
+ do_ping "$node2" dead:beef:$netid::1
+ stop_if_error "Initial validation failed on IPv6"
+
+ echo "INFO: Longer ping test."
+
+ do_ping_long "$node1" 100.64.$netid.2
+ do_ping_long "$node2" 100.64.$netid.1
+ stop_if_error "Longer ping test failed on IPv4."
+
+ do_ping_long "$node1" dead:beef:$netid::2
+ do_ping_long "$node2" dead:beef:$netid::1
+ stop_if_error "Longer ping test failed on IPv6."
+}
+
+run_ping_tests()
+{
+ echo "INFO: Running ping tests"
+ do_ping_tests 0
+}
+
+run_vlan_ping_tests()
+{
+ vlan_challenged_prp1=$(ip net exec "$node1" ethtool -k prp1 | grep "vlan-challenged" | awk '{print $2}')
+ vlan_challenged_prp2=$(ip net exec "$node2" ethtool -k prp2 | grep "vlan-challenged" | awk '{print $2}')
+
+ if [[ "$vlan_challenged_prp1" = "off" || "$vlan_challenged_prp2" = "off" ]]; then
+ echo "INFO: Running VLAN ping tests"
+ setup_vlan_interfaces
+ do_ping_tests 2
+ else
+ echo "INFO: Not Running VLAN tests as the device does not support VLAN"
+ fi
+}
+
+check_prerequisites
+trap cleanup_all_ns EXIT
+
+setup_ns node1 node2
+setup_prp_interfaces
+
+run_ping_tests
+run_vlan_ping_tests
+
+exit $ret
--
2.52.0
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