From 4a93e4cfa4102bc2c7529d5c76f06d8c91c1ed94 Mon Sep 17 00:00:00 2001
From: anamehra <54692434+anamehra@users.noreply.github.com>
Date: Fri, 3 Mar 2023 15:53:33 -0800
Subject: [PATCH] Add support for platform syncd pre shutdown plugin (#13564)

Why I did it
Vendor platform may require running platform specific pre-shutdown routine before shutting down the syncd process which runs the SAI and vendor sdk instance.

How I did it
Added a platform script hook which will be executed if the plugin script is provided by the platform in device//plugins/
---
 files/scripts/syncd.sh | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/files/scripts/syncd.sh b/files/scripts/syncd.sh
index 2a3bd133c4..8aacfe8f6c 100755
--- a/files/scripts/syncd.sh
+++ b/files/scripts/syncd.sh
@@ -105,6 +105,12 @@ function stopplatform1() {
     fi
 
     if [[ x$sonic_asic_platform != x"mellanox" ]] || [[ x$TYPE != x"cold" ]]; then
+        # Invoke platform specific pre shutdown routine.
+        PLATFORM=`$SONIC_DB_CLI CONFIG_DB hget 'DEVICE_METADATA|localhost' platform`
+        PLATFORM_PRE_SHUTDOWN="/usr/share/sonic/device/$PLATFORM/plugins/syncd_request_pre_shutdown"
+        [ -f $PLATFORM_PRE_SHUTDOWN ] && \
+            /usr/bin/docker exec -i syncd$DEV /usr/share/sonic/platform/plugins/syncd_request_pre_shutdown --${TYPE}
+
         debug "${TYPE} shutdown syncd process ..."
         /usr/bin/docker exec -i syncd$DEV /usr/bin/syncd_request_shutdown --${TYPE}