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/*
// Copyright (c) 2018 Intel Corporation
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
*/
#include <boost/algorithm/string.hpp>
#include <boost/bimap.hpp>
#include <boost/container/flat_map.hpp>
#include <cstdio>
#include <cstring>
#include <exception>
#include <filesystem>
#include <ipmid/api.hpp>
#include <ipmid/types.hpp>
#include <map>
#include <phosphor-logging/log.hpp>
#include <sdbusplus/bus/match.hpp>
#include <string>
#include <vector>
#pragma once
static constexpr bool debug = false;
struct CmpStrVersion
{
bool operator()(std::string a, std::string b) const
{
return strverscmp(a.c_str(), b.c_str()) < 0;
}
};
using SensorSubTree = boost::container::flat_map<
std::string,
boost::container::flat_map<std::string, std::vector<std::string>>,
CmpStrVersion>;
using SensorNumMap = boost::bimap<int, std::string>;
static constexpr uint16_t maxSensorsPerLUN = 255;
static constexpr uint16_t maxIPMISensors = (maxSensorsPerLUN * 3);
static constexpr uint16_t lun1Sensor0 = 0x100;
static constexpr uint16_t lun3Sensor0 = 0x300;
static constexpr uint16_t invalidSensorNumber = 0xFFFF;
static constexpr uint8_t reservedSensorNumber = 0xFF;
namespace details
{
// Enable/disable the logging of stats instrumentation
static constexpr bool enableInstrumentation = false;
class IPMIStatsEntry
{
private:
int numReadings = 0;
int numMissings = 0;
int numStreakRead = 0;
int numStreakMiss = 0;
double minValue = 0.0;
double maxValue = 0.0;
std::string sensorName;
public:
const std::string& getName(void) const
{
return sensorName;
}
void updateName(std::string_view name)
{
sensorName = name;
}
// Returns true if this is the first successful reading
// This is so the caller can log the coefficients used
bool updateReading(double reading, int raw)
{
if constexpr (!enableInstrumentation)
{
return false;
}
bool first = ((numReadings == 0) && (numMissings == 0));
// Sensors can use "nan" to indicate unavailable reading
if (!(std::isfinite(reading)))
{
// Only show this if beginning a new streak
if (numStreakMiss == 0)
{
std::cerr << "IPMI sensor " << sensorName
<< ": Missing reading, byte=" << raw
<< ", Reading counts good=" << numReadings
<< " miss=" << numMissings
<< ", Prior good streak=" << numStreakRead << "\n";
}
numStreakRead = 0;
++numMissings;
++numStreakMiss;
return first;
}
// Only show this if beginning a new streak and not the first time
if ((numStreakRead == 0) && (numReadings != 0))
{
std::cerr << "IPMI sensor " << sensorName
<< ": Recovered reading, value=" << reading
<< " byte=" << raw
<< ", Reading counts good=" << numReadings
<< " miss=" << numMissings
<< ", Prior miss streak=" << numStreakMiss << "\n";
}
// Initialize min/max if the first successful reading
if (numReadings == 0)
{
std::cerr << "IPMI sensor " << sensorName
<< ": First reading, value=" << reading << " byte=" << raw
<< "\n";
minValue = reading;
maxValue = reading;
}
numStreakMiss = 0;
++numReadings;
++numStreakRead;
// Only provide subsequent output if new min/max established
if (reading < minValue)
{
std::cerr << "IPMI sensor " << sensorName
<< ": Lowest reading, value=" << reading
<< " byte=" << raw << "\n";
minValue = reading;
}
if (reading > maxValue)
{
std::cerr << "IPMI sensor " << sensorName
<< ": Highest reading, value=" << reading
<< " byte=" << raw << "\n";
maxValue = reading;
}
return first;
}
};
class IPMIStatsTable
{
private:
std::vector<IPMIStatsEntry> entries;
private:
void padEntries(size_t index)
{
char hexbuf[16];
// Pad vector until entries[index] becomes a valid index
while (entries.size() <= index)
{
// As name not known yet, use human-readable hex as name
IPMIStatsEntry newEntry;
sprintf(hexbuf, "0x%02zX", entries.size());
newEntry.updateName(hexbuf);
entries.push_back(std::move(newEntry));
}
}
public:
void wipeTable(void)
{
entries.clear();
}
const std::string& getName(size_t index)
{
padEntries(index);
return entries[index].getName();
}
void updateName(size_t index, std::string_view name)
{
padEntries(index);
entries[index].updateName(name);
}
bool updateReading(size_t index, double reading, int raw)
{
padEntries(index);
return entries[index].updateReading(reading, raw);
}
};
// Store information for threshold sensors and they are not used by VR
// sensors. These objects are global singletons, used from a variety of places.
inline IPMIStatsTable sdrStatsTable;
/**
* Search ObjectMapper for sensors and update them to subtree.
*
* The function will search for sensors under either
* /xyz/openbmc_project/sensors or /xyz/openbmc_project/extsensors. It will
* optionally search VR typed sensors under /xyz/openbmc_project/vr
*
* @return the updated amount of times any of "sensors" or "extsensors" sensor
* paths updated successfully, previous amount if all failed. The "vr"
* sensor path is optional, and does not participate in the return value.
*/
uint16_t getSensorSubtree(std::shared_ptr<SensorSubTree>& subtree);
bool getSensorNumMap(std::shared_ptr<SensorNumMap>& sensorNumMap);
} // namespace details
bool getSensorSubtree(SensorSubTree& subtree);
#ifdef FEATURE_HYBRID_SENSORS
ipmi::sensor::IdInfoMap::const_iterator
findStaticSensor(const std::string& path);
#endif
struct CmpStr
{
bool operator()(const char* a, const char* b) const
{
return std::strcmp(a, b) < 0;
}
};
static constexpr size_t sensorTypeCodes = 0;
static constexpr size_t sensorEventTypeCodes = 1;
enum class SensorTypeCodes : uint8_t
{
reserved = 0x0,
temperature = 0x1,
voltage = 0x2,
current = 0x3,
fan = 0x4,
other = 0xB,
memory = 0x0c,
power_unit = 0x09,
buttons = 0x14,
watchdog2 = 0x23,
};
enum class SensorEventTypeCodes : uint8_t
{
unspecified = 0x00,
threshold = 0x01,
sensorSpecified = 0x6f
};
const static boost::container::flat_map<
const char*, std::pair<SensorTypeCodes, SensorEventTypeCodes>, CmpStr>
sensorTypes{
{{"temperature", std::make_pair(SensorTypeCodes::temperature,
SensorEventTypeCodes::threshold)},
{"voltage", std::make_pair(SensorTypeCodes::voltage,
SensorEventTypeCodes::threshold)},
{"current", std::make_pair(SensorTypeCodes::current,
SensorEventTypeCodes::threshold)},
{"fan_tach", std::make_pair(SensorTypeCodes::fan,
SensorEventTypeCodes::threshold)},
{"fan_pwm", std::make_pair(SensorTypeCodes::fan,
SensorEventTypeCodes::threshold)},
{"power", std::make_pair(SensorTypeCodes::other,
SensorEventTypeCodes::threshold)},
{"memory", std::make_pair(SensorTypeCodes::memory,
SensorEventTypeCodes::sensorSpecified)},
{"state", std::make_pair(SensorTypeCodes::power_unit,
SensorEventTypeCodes::sensorSpecified)},
{"buttons", std::make_pair(SensorTypeCodes::buttons,
SensorEventTypeCodes::sensorSpecified)},
{"watchdog", std::make_pair(SensorTypeCodes::watchdog2,
SensorEventTypeCodes::sensorSpecified)}}};
std::string getSensorTypeStringFromPath(const std::string& path);
uint8_t getSensorTypeFromPath(const std::string& path);
uint16_t getSensorNumberFromPath(const std::string& path);
uint8_t getSensorEventTypeFromPath(const std::string& path);
std::string getPathFromSensorNumber(uint16_t sensorNum);
namespace ipmi
{
std::map<std::string, std::vector<std::string>>
getObjectInterfaces(const char* path);
std::map<std::string, Value> getEntityManagerProperties(const char* path,
const char* interface);
const std::string* getSensorConfigurationInterface(
const std::map<std::string, std::vector<std::string>>&
sensorInterfacesResponse);
void updateIpmiFromAssociation(const std::string& path,
const DbusInterfaceMap& sensorMap,
uint8_t& entityId, uint8_t& entityInstance);
} // namespace ipmi