tree 538bf953d4bf5e9fe8747ab517cb3f27c8f4a079
parent d3a48a141a5849ba10d7a36441eaf7baae0d4165
author George Liu <liuxiwei@inspur.com> 1689836797 +0800
committer Ed Tanous <ed@tanous.net> 1728921027 +0000

Implement TemperatureReadingsCelsius property for ThermalMetrics

The ThermalMetrics schema[1] provides for efficient thermal metric
gathering for thermal sensors. The schema allows retrieving just the
thermal metrics with one Redfish URI. This prevents the additional work
required when returning all the sensor data, or multiple Redfish URI
calls to retrieve the properties for all of the thermal sensors.

This commit implements the TemperatureReadingsCelsius property of
ThermalMetrics[1]. ThermalMetrics is a property of ThermalSubsystem[2].
TemperatureReadingsCelsius is a SensorArrayExcerpt[3].

[1] https://redfish.dmtf.org/schemas/v1/ThermalMetrics.v1_0_1.json
[2] https://redfish.dmtf.org/schemas/v1/ThermalSubsystem.v1_3_2.json
[3] http://redfish.dmtf.org/schemas/v1/Sensor.v1_9_0.json#/definitions/SensorArrayExcerpt

The temperature sensors are found by finding 'all_sensors' endpoints for
specific chassis of D-Bus service
/xyz/openbmc_project/sensors/temperature. An entry of SensorArrayExcerpt
is built for each temperature sensor retrieved.

Implementation Notes:
 - Common function sensor_utils::objectPropertiesToJson() is used to
   fill in sensor excerpt properties. Currently the only excerpt
   ChassisSubNode is ThermalMetrics. However there are others excerpts
   defined by Redfish. Right now mostly this is just skipping things,
   but I'm expecting when other sensor excerpts are implemented that
   some of the other properties may be added for excerpts as well. I'm
   expecting the combination of the chassisSubNode and the sensorType
   will be used to determine which properties are included for a
   particular call to build a sensor Json representation.
 - New sensor_utils::objectExcerptToJson() function created. This wraps
   sensor_utils::objectPropertiesToJson() and builds DataSourceUri for a
   sensor excerpt.
 - New sensor_utils::getAllSensorObjects() function created. This builds
   list of 'all_sensors' association endpoints for specified D-Bus path
   with specified D-Bus interfaces. Callback function is called with
   list for handling sensors.

Tested:
1. Redfish Service Validator passed.
2. doGet method:
```
curl -k -H "X-Auth-Token: ${token}" -X GET https://${bmc}/redfish/v1/Chassis/chassis/ThermalSubsystem/ThermalMetrics
{
  "@odata.id": "/redfish/v1/Chassis/chassis/ThermalSubsystem/ThermalMetrics",
  "@odata.type": "#ThermalMetrics.v1_0_1.ThermalMetrics",
  "Id": "ThermalMetrics",
  "Name": "Thermal Metrics",
  "TemperatureReadingsCelsius": [
    {
      "DataSourceUri": "/redfish/v1/Chassis/chassis/Sensors/temperature_ps0_temp0",
      "Reading": -131072000.0
    },
    {
      "DataSourceUri": "/redfish/v1/Chassis/chassis/Sensors/temperature_ps0_temp1",
      "Reading": -131072000.0
    },
    {
      "DataSourceUri": "/redfish/v1/Chassis/chassis/Sensors/temperature_ps0_temp2",
      "Reading": -131072000.0
    },
    {
      "DataSourceUri": "/redfish/v1/Chassis/chassis/Sensors/temperature_ps1_temp0",
      "Reading": -131072000.0
    },
    {
      "DataSourceUri": "/redfish/v1/Chassis/chassis/Sensors/temperature_ps1_temp1",
      "Reading": -131072000.0
    },
    {
      "DataSourceUri": "/redfish/v1/Chassis/chassis/Sensors/temperature_ps1_temp2",
      "Reading": -131072000.0
    }
  ],
  "TemperatureReadingsCelsius@odata.count": 6
}
```

3. Verification of DataSourceUri:
```
curl -k -H "X-Auth-Token: ${token}" -X GET https://${bmc}/redfish/v1/Chassis/chassis/Sensors/temperature_ps1_temp0
{
  "@odata.id": "/redfish/v1/Chassis/chassis/Sensors/temperature_ps1_temp0",
  "@odata.type": "#Sensor.v1_2_0.Sensor",
  "Id": "temperature_ps1_temp0",
  "Name": "ps1 temp0",
  "Reading": -131072000.0,
  "ReadingType": "Temperature",
  "ReadingUnits": "Cel",
  "Status": {
    "Health": "OK",
    "State": "Enabled"
  }
}
```

4. A bad chassis ID:
```
curl -k -H "X-Auth-Token: ${token}" -X GET https://${bmc}/redfish/v1/Chassis/chassisBAD/ThermalSubsystem/ThermalMetrics
{
  "error": {
    "@Message.ExtendedInfo": [
      {
        "@odata.type": "#Message.v1_1_1.Message",
        "Message": "The requested resource of type Chassis named 'chassisBAD' was not found.",
        "MessageArgs": [
          "Chassis",
          "chassisBAD"
        ],
        "MessageId": "Base.1.18.1.ResourceNotFound",
        "MessageSeverity": "Critical",
        "Resolution": "Provide a valid resource identifier and resubmit the request."
      }
    ],
    "code": "Base.1.18.1.ResourceNotFound",
    "message": "The requested resource of type Chassis named 'chassisBAD' was not found."
  }
}
```

Signed-off-by: George Liu <liuxiwei@ieisystem.com>
Change-Id: I6e4ed1f281fd5371c978983b6cc5666badd3752c
Signed-off-by: Janet Adkins <janeta@us.ibm.com>