netdev - [RFC PATCH for-faizal 3/4] selftests: net: tsn: allow isochron_do() to skip sync monitoring on sender too

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Date: Thu, 21 Dec 2023 15:25:20 +0200
From: Vladimir Oltean <vladimir.oltean@....com>
To: netdev@...r.kernel.org
Cc: "Abdul Rahim, Faizal" <faizal.abdul.rahim@...ux.intel.com>
Subject: [RFC PATCH for-faizal 3/4] selftests: net: tsn: allow isochron_do() to skip sync monitoring on sender too

For testing the tc-taprio software scheduling path, we don't need PTP
synchronization at all, but isochron_do() was written assuming that we
do.

Allow skipping the UNIX domain socket for the ptp4l instance on the
sender, and pass --omit-sync to isochron instead, so that it sends right
away and does not monitor the PTP quality.

Signed-off-by: Vladimir Oltean <vladimir.oltean@....com>
---
 tools/testing/selftests/net/forwarding/tsn_lib.sh | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/tools/testing/selftests/net/forwarding/tsn_lib.sh b/tools/testing/selftests/net/forwarding/tsn_lib.sh
index f081cebb1c65..189bf27bad76 100644
--- a/tools/testing/selftests/net/forwarding/tsn_lib.sh
+++ b/tools/testing/selftests/net/forwarding/tsn_lib.sh
@@ -204,6 +204,12 @@ isochron_do()
 		vid="--vid=${vid}"
 	fi
 
+	if [ -z "${sender_uds}" ]; then
+		sender_extra_args="${sender_extra_args} --omit-sync"
+	else
+		sender_extra_args="${sender_extra_args} --unix-domain-socket ${sender_uds}"
+	fi
+
 	if [ -z "${receiver_uds}" ]; then
 		sender_extra_args="${sender_extra_args} --omit-remote-sync"
 	fi
@@ -226,7 +232,6 @@ isochron_do()
 
 	isochron send \
 		--interface ${sender_if_name} \
-		--unix-domain-socket ${sender_uds} \
 		--priority ${priority} \
 		--base-time ${base_time} \
 		--cycle-time ${cycle_time} \
-- 
2.34.1