From e25c2d984f9b1a26e2dd3d069897de2666e0c86c Mon Sep 17 00:00:00 2001
From: Junchao-Mellanox <57339448+Junchao-Mellanox@users.noreply.github.com>
Date: Wed, 27 May 2020 01:46:29 +0800
Subject: [PATCH] [Mellanox] Never disable kernel thermal algorithm at
 real-time (#4638)

---
 .../x86_64-mlnx_msn2700-r0/thermal_policy.json    | 15 +--------------
 .../sonic_platform/thermal_actions.py             |  6 ++++++
 2 files changed, 7 insertions(+), 14 deletions(-)

diff --git a/device/mellanox/x86_64-mlnx_msn2700-r0/thermal_policy.json b/device/mellanox/x86_64-mlnx_msn2700-r0/thermal_policy.json
index f16f68dd00..1e23d6c8b2 100644
--- a/device/mellanox/x86_64-mlnx_msn2700-r0/thermal_policy.json
+++ b/device/mellanox/x86_64-mlnx_msn2700-r0/thermal_policy.json
@@ -23,10 +23,6 @@
                 }
             ],
             "actions": [
-                {
-                    "type": "thermal_control.control",
-                    "status": "false"
-                },
                 {
                     "type": "fan.all.set_speed",
                     "speed": "100"
@@ -41,10 +37,6 @@
                 }
             ],
             "actions": [
-                {
-                    "type": "thermal_control.control",
-                    "status": "false"
-                },
                 {
                     "type": "fan.all.set_speed",
                     "speed": "100"
@@ -59,10 +51,6 @@
                 }
             ],
             "actions": [
-                {
-                    "type": "thermal_control.control",
-                    "status": "false"
-                },
                 {
                     "type": "fan.all.set_speed",
                     "speed": "100"
@@ -84,8 +72,7 @@
             ],
             "actions": [
                 {
-                    "type": "thermal_control.control",
-                    "status": "true"
+                    "type": "thermal.recover"
                 }
             ]
         }
diff --git a/platform/mellanox/mlnx-platform-api/sonic_platform/thermal_actions.py b/platform/mellanox/mlnx-platform-api/sonic_platform/thermal_actions.py
index 9a4cde05b8..e7436bd0a5 100644
--- a/platform/mellanox/mlnx-platform-api/sonic_platform/thermal_actions.py
+++ b/platform/mellanox/mlnx-platform-api/sonic_platform/thermal_actions.py
@@ -141,6 +141,12 @@ class ControlThermalAlgoAction(ThermalPolicyActionBase):
             logger.log_info('Changed thermal algorithm status to {}'.format(self.status))
 
 
+@thermal_json_object('thermal.recover')
+class ThermalRecoverAction(ThermalPolicyActionBase):
+    def execute(self, thermal_info_dict):
+         UpdateCoolingLevelToMinAction.update_cooling_level_to_minimum(thermal_info_dict)
+
+
 class ChangeMinCoolingLevelAction(ThermalPolicyActionBase):
     UNKNOWN_SKU_COOLING_LEVEL = 6
     def execute(self, thermal_info_dict):