Add func for Maximum when sensor from DBus
Add function to calculate the maximum value.
Tested:
in entity-manager/baseboard.json:
add virtual sensor use Type=Maximum:
```
{
"Exposes": [
{
"Name": "NVMe MAX Temp",
"Sensors": [
"NVMe 0 Temp",
"NVMe 1 Temp",
"NVMe 2 Temp",
"NVMe 3 Temp",
"NVMe 4 Temp"
],
"Thresholds": [
{
"Direction": "greater than",
"Name": "upper critical",
"Severity": 1,
"Value": 116
},
{
"Direction": "less than",
"Name": "lower critical",
"Severity": 1,
"Value": 1
}
],
"Type": "Maximum",
"Units": "DegreesC"
}
],
"Logging": "Off",
"Name": "NVMe MAX",
"Probe": "TRUE",
"Type": "NVMe",
"xyz.openbmc_project.Inventory.Item.Chassis": {}
}
```
in phosphor-virtual-sensor/virtual_sensor_config.json
```
{
"Desc": {
"Config": "D-Bus",
"Type": "Maximum"
}
}
```
root@NULL:~# busctl tree xyz.openbmc_project.VirtualSensor
`-/xyz
`-/xyz/openbmc_project
`-/xyz/openbmc_project/sensors/temperature
|-/xyz/openbmc_project/sensors/temperature/NVMe_MAX_Temp
root@NULL:~# ipmitool sensor list | grep -i NVMe
NVMe_MAX_Temp |70| degrees C |na| na|1.000|6.000|111.000|116.000|na
root@NULL:~#
Signed-off-by: Tao Lin <lintao.lc@inspur.com>
Change-Id: I620a0ee3c3cc4dbae6485c77fe4e47c62a04a804
diff --git a/virtualSensor.cpp b/virtualSensor.cpp
index 063fb0f..d130200 100644
--- a/virtualSensor.cpp
+++ b/virtualSensor.cpp
@@ -10,8 +10,9 @@
static constexpr auto busName = "xyz.openbmc_project.VirtualSensor";
static constexpr auto sensorDbusPath = "/xyz/openbmc_project/sensors/";
static constexpr auto vsThresholdsIfaceSuffix = ".Thresholds";
-static constexpr std::array<const char*, 1> calculationIfaces = {
- "xyz.openbmc_project.Configuration.ModifiedMedian"};
+static constexpr std::array<const char*, 2> calculationIfaces = {
+ "xyz.openbmc_project.Configuration.ModifiedMedian",
+ "xyz.openbmc_project.Configuration.Maximum"};
static constexpr auto defaultHysteresis = 0;
PHOSPHOR_LOG2_USING_WITH_FLAGS;
@@ -461,6 +462,10 @@
{
return calculateModifiedMedianValue(paramMap);
}
+ else if (calculation == "xyz.openbmc_project.Configuration.Maximum")
+ {
+ return calculateMaximumValue(paramMap);
+ }
return std::numeric_limits<double>::quiet_NaN();
}
@@ -552,6 +557,31 @@
}
}
+double VirtualSensor::calculateMaximumValue(
+ const VirtualSensor::ParamMap& paramMap)
+{
+ std::vector<double> values;
+
+ for (auto& param : paramMap)
+ {
+ auto& name = param.first;
+ if (auto var = symbols.get_variable(name))
+ {
+ if (!sensorInRange(var->ref()))
+ {
+ continue;
+ }
+ values.push_back(var->ref());
+ }
+ }
+ auto maxIt = std::max_element(values.begin(), values.end());
+ if (maxIt == values.end())
+ {
+ return std::numeric_limits<double>::quiet_NaN();
+ }
+ return *maxIt;
+}
+
void VirtualSensor::createThresholds(const Json& threshold,
const std::string& objPath)
{