Re: [PATCH net-next v6 8/8] selftests: hsr: Add test for the inline PTP header on HSR

[Hangbin Liu <hangbin.liu@linux.dev>]

Hi Sebastian,

On Wed, Sep 23, 2026 at 02:14:09PM +0200, Sebastian Andrzej Siewior wrote:
> This test verifies the inline header which is used by HSR stack with the
> ether type ETH_P_1588.
> The HSR stack needs to recognize this header, strip it and send the
> requested packet only on the requested port.
> 
> This test needs a HSR device and the two slave devices passed. It will
> will send a sample PTP packet with this inline header, requesting one of
> the ports combining with and without the HSR header. A total of four
> packets is sent.
> The test checks both ports devices for packets and complains if the
> packet was not observed on the expected port and/ or observed on the
> other port. The received content of the data is compared against the
> send data sample.
> 
> Test suggested by Felix Maurer.
> 
> Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
> ---
>  tools/testing/selftests/net/hsr/.gitignore     |   1 +
>  tools/testing/selftests/net/hsr/Makefile       |   5 +
>  tools/testing/selftests/net/hsr/hsr_ptp.sh     | 109 ++++++
>  tools/testing/selftests/net/hsr/hsr_ptp_test.c | 495 +++++++++++++++++++++++++
>  4 files changed, 610 insertions(+)
> 
> diff --git a/tools/testing/selftests/net/hsr/.gitignore b/tools/testing/selftests/net/hsr/.gitignore
> new file mode 100644
> index 0000000000000..849eecb84c974
> --- /dev/null
> +++ b/tools/testing/selftests/net/hsr/.gitignore
> @@ -0,0 +1 @@
> +hsr_ptp_test
> diff --git a/tools/testing/selftests/net/hsr/Makefile b/tools/testing/selftests/net/hsr/Makefile
> index 2150e487ac7d7..5d0134ead65d7 100644
> --- a/tools/testing/selftests/net/hsr/Makefile
> +++ b/tools/testing/selftests/net/hsr/Makefile
> @@ -2,14 +2,19 @@
>  
>  top_srcdir = ../../../../..
>  
> +CFLAGS += -Wall -Wl,--no-as-needed -O2 -g
> +
>  TEST_PROGS := \
>  	hsr_ping.sh \
>  	hsr_prp_redbox.sh \
>  	hsr_redbox.sh \
>  	link_faults.sh \
>  	prp_ping.sh \
> +	hsr_ptp.sh \
>  # end of TEST_PROGS

If there is a new version. Please sort the test with alphabet order.

>  
>  TEST_FILES += hsr_common.sh
>  
> +TEST_GEN_FILES := hsr_ptp_test
> +
>  include ../../lib.mk
> diff --git a/tools/testing/selftests/net/hsr/hsr_ptp.sh b/tools/testing/selftests/net/hsr/hsr_ptp.sh
> new file mode 100755
> index 0000000000000..034c635916f81
> --- /dev/null
> +++ b/tools/testing/selftests/net/hsr/hsr_ptp.sh
> @@ -0,0 +1,109 @@
> +#!/bin/bash
> +# SPDX-License-Identifier: GPL-2.0
> +
> +ipv6=false
> +
> +source ./hsr_common.sh
> +
> +optstring="h4"
> +usage() {
> +	echo "Usage: $0"
> +}
> +
> +while getopts "$optstring" option;do
> +	case "$option" in
> +	"h")
> +		usage $0

usage "$0"

> +		exit 0
> +		;;
> +	"?")
> +		usage $0
> +		exit 1
> +		;;

Thanks
Hangbin