| commit | 45e9277ddfb54b6c21093ba6c2439e5eead8ac51 | [log] [tgz] |
|---|---|---|
| author | Adrian Ambrożewicz <adrian.ambrozewicz@linux.intel.com> | Thu Jun 04 13:59:55 2020 +0200 |
| committer | Adrian Ambrożewicz <adrian.ambrozewicz@linux.intel.com> | Mon Jun 08 09:52:31 2020 +0000 |
| tree | 4ff90ef22c4fe2afb70f2745732ad9aaca06570b | |
| parent | 8d8d8d7ca49b06cecfbc0a87f821f05dec535fa3 [diff] |
Support retrieving 'utilization' from ME
ME exposes sensors which express host CPU utilization in range 0-255.
This change introduces following things:
- 'MESensor' sensor type introduced alongside legacy 'METemp' for clarity
- ability to expose 'utilization' sensor with range 0-100 (percent)
- scaling utilization value from 0-255 to 0-100
Testing:
- added following configuration on platform:
{
"Address": 190,
"Class": "MESensor",
"Name": "Host CPU Core Utilization",
"SensorType": "utilization",
"ScaleValue": 0.392,
"Type": "IpmbSensor"
}
- configuration properly loaded
- sensors appear on D-Bus and Redfish:
{
"@odata.id": "/redfish/v1/Chassis/WC_Baseboard/Sensors/Host_CPU_Core_Utilization",
"@odata.type": "#Sensor.v1_0_0.Sensor",
"Id": "Host_CPU_Core_Utilization",
"Name": "Host CPU Core Utilization",
"Reading": 98.784,
"ReadingRangeMax": 100.0,
"ReadingRangeMin": 0.0,
"ReadingUnits": "Percent",
"Status": {
"Health": "OK",
"State": "Enabled"
}
}
Change-Id: I49a14820e1b72f9776bd24ba1584d81ee0c95cd5
Signed-off-by: Adrian Ambrożewicz <adrian.ambrozewicz@linux.intel.com>
dbus-sensors is a collection of sensor applications that provide the xyz.openbmc_project.Sensor collection of interfaces. They read sensor values from hwmon, d-bus, or direct driver access to provide readings. Some advance non-sensor features such as fan presence, pwm control, and automatic cpu detection (x86) are also supported.
runtime re-configurable from d-bus (entity-manager or the like)
isolated: each sensor type is isolated into its own daemon, so a bug in one sensor is unlikely to affect another, and single sensor modifications are possible
async single-threaded: uses sdbusplus/asio bindings
multiple data inputs: hwmon, d-bus, direct driver access