sonic-buildimage/platform/mellanox/hw-management/0003-Make-hw-mgmt-SimX-compatiable.patch

From 5858f60aa5948a502ca8a1c9357ac81baa6f68dc Mon Sep 17 00:00:00 2001
From: junchao <junchao@nvidia.com>
Date: Fri, 23 Apr 2021 09:27:43 +0800
Subject: [PATCH] Make hw-mgmt SimX compatible

---
 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 3c9f7b6..05d143f 100755
--- a/usr/usr/bin/hw-management-ready.sh
+++ b/usr/usr/bin/hw-management-ready.sh
@@ -49,9 +49,12 @@ if [ -d /var/run/hw-management ]; then
 	rm -fr /var/run/hw-management
 fi
 
-while [ ! -d /sys/devices/platform/mlxplat/mlxreg-hotplug/hwmon ]
-do
-	sleep 1
-done
+if [ -z "$(lspci -vvv | grep SimX)" ]; then
+        while [ ! -d /sys/devices/platform/mlxplat/mlxreg-hotplug/hwmon ]
+        do
+                sleep 1
+        done
+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 991cf45..16ad0bf 100755
--- a/usr/usr/bin/hw-management.sh
+++ b/usr/usr/bin/hw-management.sh
@@ -1265,6 +1265,13 @@ 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]
 
@@ -1290,6 +1297,8 @@ Options:
 	force-reload	Performs hw-management 'stop' and the 'start.
 "
 
+check_simx
+
 case $ACTION in
 	start)
 		if [ -d /var/run/hw-management ]; then
-- 
1.9.1