sonic-buildimage/platform/mellanox/hw-management/0002-Disable-hw-mgmt-on-SimX-platforms.patch

From 422b64397f2f33b394d037820f0ceb4c09e3a725 Mon Sep 17 00:00:00 2001
From: Alexander Allen <arallen@nvidia.com>
Date: Fri, 21 Jan 2022 16:47:19 +0000
Subject: [PATCH 2/4] Disable hw-mgmt on SimX platforms

---
 usr/usr/bin/hw-management-ready.sh | 11 +++++++----
 usr/usr/bin/hw-management.sh       |  9 +++++++++
 2 files changed, 16 insertions(+), 4 deletions(-)

diff --git a/usr/usr/bin/hw-management-ready.sh b/usr/usr/bin/hw-management-ready.sh
index 88672a8..7558c68 100755
--- a/usr/usr/bin/hw-management-ready.sh
+++ b/usr/usr/bin/hw-management-ready.sh
@@ -51,17 +51,20 @@ if [ -d /var/run/hw-management ]; then
 	rm -fr /var/run/hw-management
 fi
 
-case $board_type in
-VMOD0014)
+if [ -z "$(lspci -vvv | grep SimX)" ]; then
+    case $board_type in
+    VMOD0014)
 	if [ ! -d /sys/devices/pci0000:00/0000:00:1f.0/NVSN2201:00/mlxreg-hotplug/hwmon ]; then
 		timeout 180 bash -c 'until [ -d /sys/devices/pci0000:00/0000:00:1f.0/NVSN2201:00/mlxreg-hotplug/hwmon ]; do sleep 0.2; done'
 	fi
 	;;
-*)
+    *)
 	if [ ! -d /sys/devices/platform/mlxplat/mlxreg-hotplug/hwmon ]; then
 		timeout 180 bash -c 'until [ -d /sys/devices/platform/mlxplat/mlxreg-hotplug/hwmon ]; do sleep 0.2; done'
 	fi
 	;;
-esac
+    esac
+fi
+
 echo "Start Chassis HW management service."
 logger -t hw-management -p daemon.notice "Start Chassis HW management service."
diff --git a/usr/usr/bin/hw-management.sh b/usr/usr/bin/hw-management.sh
index 1ee05b5..50d922b 100755
--- a/usr/usr/bin/hw-management.sh
+++ b/usr/usr/bin/hw-management.sh
@@ -2310,6 +2310,13 @@ do_chip_down()
 	/usr/bin/hw-management-thermal-events.sh change hotplug_asic down %S %p
 }
 
+check_simx()
+{
+	if [ -n "$(lspci -vvv | grep SimX)" ]; then
+		exit 0
+	fi
+}
+
 __usage="
 Usage: $(basename "$0") [Options]
 
@@ -2335,6 +2342,8 @@ Options:
 	force-reload	Performs hw-management 'stop' and the 'start.
 "
 
+check_simx
+
 case $ACTION in
 	start)
 		if [ -d /var/run/hw-management ]; then
-- 
2.20.1