blob: ea2020c00d4857b89885e78fe819125565d32e6f [file] [log] [blame]
#include "config.h"
#include "occ_manager.hpp"
#include "i2c_occ.hpp"
#include "occ_dbus.hpp"
#include "utils.hpp"
#include <phosphor-logging/elog-errors.hpp>
#include <phosphor-logging/log.hpp>
#include <xyz/openbmc_project/Common/error.hpp>
#include <chrono>
#include <cmath>
#include <filesystem>
#include <regex>
namespace open_power
{
namespace occ
{
constexpr uint32_t fruTypeNotAvailable = 0xFF;
constexpr auto fruTypeSuffix = "fru_type";
constexpr auto faultSuffix = "fault";
constexpr auto inputSuffix = "input";
using namespace phosphor::logging;
template <typename T>
T readFile(const std::string& path)
{
std::ifstream ifs;
ifs.exceptions(std::ifstream::failbit | std::ifstream::badbit |
std::ifstream::eofbit);
T data;
try
{
ifs.open(path);
ifs >> data;
ifs.close();
}
catch (const std::exception& e)
{
auto err = errno;
throw std::system_error(err, std::generic_category());
}
return data;
}
void Manager::findAndCreateObjects()
{
#ifndef POWER10
for (auto id = 0; id < MAX_CPUS; ++id)
{
// Create one occ per cpu
auto occ = std::string(OCC_NAME) + std::to_string(id);
createObjects(occ);
}
#else
// Create the OCCs based on on the /dev/occX devices
auto occs = findOCCsInDev();
if (occs.empty() || (prevOCCSearch.size() != occs.size()))
{
// Something changed or no OCCs yet, try again in 10s.
// Note on the first pass prevOCCSearch will be empty,
// so there will be at least one delay to give things
// a chance to settle.
prevOCCSearch = occs;
using namespace std::literals::chrono_literals;
discoverTimer->restartOnce(10s);
}
else
{
discoverTimer.reset();
// createObjects requires OCC0 first.
std::sort(occs.begin(), occs.end());
for (auto id : occs)
{
createObjects(std::string(OCC_NAME) + std::to_string(id));
}
}
#endif
}
std::vector<int> Manager::findOCCsInDev()
{
std::vector<int> occs;
std::regex expr{R"(occ(\d+)$)"};
for (auto& file : fs::directory_iterator("/dev"))
{
std::smatch match;
std::string path{file.path().string()};
if (std::regex_search(path, match, expr))
{
auto num = std::stoi(match[1].str());
// /dev numbering starts at 1, ours starts at 0.
occs.push_back(num - 1);
}
}
return occs;
}
int Manager::cpuCreated(sdbusplus::message::message& msg)
{
namespace fs = std::filesystem;
sdbusplus::message::object_path o;
msg.read(o);
fs::path cpuPath(std::string(std::move(o)));
auto name = cpuPath.filename().string();
auto index = name.find(CPU_NAME);
name.replace(index, std::strlen(CPU_NAME), OCC_NAME);
createObjects(name);
return 0;
}
void Manager::createObjects(const std::string& occ)
{
auto path = fs::path(OCC_CONTROL_ROOT) / occ;
passThroughObjects.emplace_back(
std::make_unique<PassThrough>(path.c_str()));
statusObjects.emplace_back(std::make_unique<Status>(
event, path.c_str(), *this,
std::bind(std::mem_fn(&Manager::statusCallBack), this,
std::placeholders::_1)
#ifdef PLDM
,
std::bind(std::mem_fn(&pldm::Interface::resetOCC), pldmHandle.get(),
std::placeholders::_1)
#endif
));
// Create the power cap monitor object for master occ (0)
if (!pcap)
{
pcap = std::make_unique<open_power::occ::powercap::PowerCap>(
*statusObjects.front());
}
#ifdef POWER10
// Create the power mode monitor object for master occ (0)
if (!pmode)
{
pmode = std::make_unique<open_power::occ::powermode::PowerMode>(
*statusObjects.front());
}
#endif
}
void Manager::statusCallBack(bool status)
{
using InternalFailure =
sdbusplus::xyz::openbmc_project::Common::Error::InternalFailure;
// At this time, it won't happen but keeping it
// here just in case something changes in the future
if ((activeCount == 0) && (!status))
{
log<level::ERR>("Invalid update on OCCActive");
elog<InternalFailure>();
}
activeCount += status ? 1 : -1;
// Only start presence detection if all the OCCs are bound
if (activeCount == statusObjects.size())
{
for (auto& obj : statusObjects)
{
obj->addPresenceWatchMaster();
}
}
if ((!_pollTimer->isEnabled()) && (activeCount > 0))
{
log<level::INFO>(
fmt::format(
"Manager::statusCallBack(): {} OCCs will be polled every {} seconds",
activeCount, pollInterval)
.c_str());
// Send poll and start OCC poll timer
pollerTimerExpired();
}
else if ((_pollTimer->isEnabled()) && (activeCount == 0))
{
// Stop OCC poll timer
log<level::INFO>(
"Manager::statusCallBack(): OCCs are not running, stopping poll timer");
_pollTimer->setEnabled(false);
#ifdef READ_OCC_SENSORS
for (auto& obj : statusObjects)
{
setSensorValueToNaN(obj->getOccInstanceID());
}
#endif
}
}
#ifdef I2C_OCC
void Manager::initStatusObjects()
{
// Make sure we have a valid path string
static_assert(sizeof(DEV_PATH) != 0);
auto deviceNames = i2c_occ::getOccHwmonDevices(DEV_PATH);
auto occMasterName = deviceNames.front();
for (auto& name : deviceNames)
{
i2c_occ::i2cToDbus(name);
name = std::string(OCC_NAME) + '_' + name;
auto path = fs::path(OCC_CONTROL_ROOT) / name;
statusObjects.emplace_back(
std::make_unique<Status>(event, path.c_str(), *this));
}
// The first device is master occ
pcap = std::make_unique<open_power::occ::powercap::PowerCap>(
*statusObjects.front(), occMasterName);
#ifdef POWER10
pmode = std::make_unique<open_power::occ::powermode::PowerMode>(
*statusObjects.front());
#endif
}
#endif
#ifdef PLDM
bool Manager::updateOCCActive(instanceID instance, bool status)
{
return (statusObjects[instance])->occActive(status);
}
#endif
void Manager::pollerTimerExpired()
{
if (activeCount == 0)
{
// No OCCs running, so poll timer will not be restarted
log<level::INFO>(
"Manager::pollerTimerExpire(): No OCCs running, poll timer not restarted");
}
if (!_pollTimer)
{
log<level::ERR>(
"Manager::pollerTimerExpired() ERROR: Timer not defined");
return;
}
for (auto& obj : statusObjects)
{
// Read sysfs to force kernel to poll OCC
obj->readOccState();
#ifdef READ_OCC_SENSORS
// Read occ sensor values
auto id = obj->getOccInstanceID();
if (!obj->occActive())
{
// Occ not activated
setSensorValueToNaN(id);
continue;
}
getSensorValues(id, obj->isMasterOcc());
#endif
}
// Restart OCC poll timer
_pollTimer->restartOnce(std::chrono::seconds(pollInterval));
}
#ifdef READ_OCC_SENSORS
void Manager::readTempSensors(const fs::path& path, uint32_t id)
{
std::regex expr{"temp\\d+_label$"}; // Example: temp5_label
for (auto& file : fs::directory_iterator(path))
{
if (!std::regex_search(file.path().string(), expr))
{
continue;
}
uint32_t labelValue{0};
try
{
labelValue = readFile<uint32_t>(file.path());
}
catch (const std::system_error& e)
{
log<level::DEBUG>(
fmt::format("readTempSensors: Failed reading {}, errno = {}",
file.path().string(), e.code().value())
.c_str());
continue;
}
const std::string& tempLabel = "label";
const std::string filePathString = file.path().string().substr(
0, file.path().string().length() - tempLabel.length());
uint32_t fruTypeValue{0};
try
{
fruTypeValue = readFile<uint32_t>(filePathString + fruTypeSuffix);
}
catch (const std::system_error& e)
{
log<level::DEBUG>(
fmt::format("readTempSensors: Failed reading {}, errno = {}",
filePathString + fruTypeSuffix, e.code().value())
.c_str());
continue;
}
std::string sensorPath =
OCC_SENSORS_ROOT + std::string("/temperature/");
if (fruTypeValue == VRMVdd)
{
sensorPath.append("vrm_vdd" + std::to_string(id) + "_temp");
}
else
{
uint16_t type = (labelValue & 0xFF000000) >> 24;
uint16_t instanceID = labelValue & 0x0000FFFF;
if (type == OCC_DIMM_TEMP_SENSOR_TYPE)
{
if (fruTypeValue == fruTypeNotAvailable)
{
// Not all DIMM related temps are available to read
// (no _input file in this case)
continue;
}
auto iter = dimmTempSensorName.find(fruTypeValue);
if (iter == dimmTempSensorName.end())
{
log<level::ERR>(
fmt::format(
"readTempSensors: Fru type error! fruTypeValue = {}) ",
fruTypeValue)
.c_str());
continue;
}
sensorPath.append("dimm" + std::to_string(instanceID) +
iter->second);
}
else if (type == OCC_CPU_TEMP_SENSOR_TYPE)
{
if (fruTypeValue != processorCore)
{
// TODO: support IO ring temp
continue;
}
// The OCC reports small core temps, of which there are
// two per big core. All current P10 systems are in big
// core mode, so use a big core name.
uint16_t coreNum = instanceID / 2;
uint16_t tempNum = instanceID % 2;
sensorPath.append("proc" + std::to_string(id) + "_core" +
std::to_string(coreNum) + "_" +
std::to_string(tempNum) + "_temp");
}
else
{
continue;
}
}
uint32_t faultValue{0};
try
{
faultValue = readFile<uint32_t>(filePathString + faultSuffix);
}
catch (const std::system_error& e)
{
log<level::DEBUG>(
fmt::format("readTempSensors: Failed reading {}, errno = {}",
filePathString + faultSuffix, e.code().value())
.c_str());
continue;
}
// At this point, the sensor will be created for sure.
if (existingSensors.find(sensorPath) == existingSensors.end())
{
open_power::occ::dbus::OccDBusSensors::getOccDBus()
.setChassisAssociation(sensorPath);
}
if (faultValue != 0)
{
open_power::occ::dbus::OccDBusSensors::getOccDBus().setValue(
sensorPath, std::numeric_limits<double>::quiet_NaN());
open_power::occ::dbus::OccDBusSensors::getOccDBus()
.setOperationalStatus(sensorPath, false);
continue;
}
double tempValue{0};
try
{
tempValue = readFile<double>(filePathString + inputSuffix);
}
catch (const std::system_error& e)
{
log<level::DEBUG>(
fmt::format("readTempSensors: Failed reading {}, errno = {}",
filePathString + inputSuffix, e.code().value())
.c_str());
continue;
}
open_power::occ::dbus::OccDBusSensors::getOccDBus().setValue(
sensorPath, tempValue * std::pow(10, -3));
open_power::occ::dbus::OccDBusSensors::getOccDBus()
.setOperationalStatus(sensorPath, true);
existingSensors[sensorPath] = id;
}
return;
}
std::optional<std::string>
Manager::getPowerLabelFunctionID(const std::string& value)
{
// If the value is "system", then the FunctionID is "system".
if (value == "system")
{
return value;
}
// If the value is not "system", then the label value have 3 numbers, of
// which we only care about the middle one:
// <sensor id>_<function id>_<apss channel>
// eg: The value is "0_10_5" , then the FunctionID is "10".
if (value.find("_") == std::string::npos)
{
return std::nullopt;
}
auto powerLabelValue = value.substr((value.find("_") + 1));
if (powerLabelValue.find("_") == std::string::npos)
{
return std::nullopt;
}
return powerLabelValue.substr(0, powerLabelValue.find("_"));
}
void Manager::readPowerSensors(const fs::path& path, uint32_t id)
{
std::regex expr{"power\\d+_label$"}; // Example: power5_label
for (auto& file : fs::directory_iterator(path))
{
if (!std::regex_search(file.path().string(), expr))
{
continue;
}
std::string labelValue;
try
{
labelValue = readFile<std::string>(file.path());
}
catch (const std::system_error& e)
{
log<level::DEBUG>(
fmt::format("readPowerSensors: Failed reading {}, errno = {}",
file.path().string(), e.code().value())
.c_str());
continue;
}
auto functionID = getPowerLabelFunctionID(labelValue);
if (functionID == std::nullopt)
{
continue;
}
const std::string& tempLabel = "label";
const std::string filePathString = file.path().string().substr(
0, file.path().string().length() - tempLabel.length());
std::string sensorPath = OCC_SENSORS_ROOT + std::string("/power/");
auto iter = powerSensorName.find(*functionID);
if (iter == powerSensorName.end())
{
continue;
}
sensorPath.append(iter->second);
double tempValue{0};
try
{
tempValue = readFile<double>(filePathString + inputSuffix);
}
catch (const std::system_error& e)
{
log<level::DEBUG>(
fmt::format("readTempSensors: Failed reading {}, errno = {}",
filePathString + inputSuffix, e.code().value())
.c_str());
continue;
}
open_power::occ::dbus::OccDBusSensors::getOccDBus().setValue(
sensorPath, tempValue * std::pow(10, -3) * std::pow(10, -3));
open_power::occ::dbus::OccDBusSensors::getOccDBus()
.setOperationalStatus(sensorPath, true);
if (existingSensors.find(sensorPath) == existingSensors.end())
{
open_power::occ::dbus::OccDBusSensors::getOccDBus()
.setChassisAssociation(sensorPath);
}
existingSensors[sensorPath] = id;
}
return;
}
void Manager::setSensorValueToNaN(uint32_t id)
{
for (const auto& [sensorPath, occId] : existingSensors)
{
if (occId == id)
{
open_power::occ::dbus::OccDBusSensors::getOccDBus().setValue(
sensorPath, std::numeric_limits<double>::quiet_NaN());
}
}
return;
}
void Manager::getSensorValues(uint32_t id, bool masterOcc)
{
const auto occ = std::string("occ-hwmon.") + std::to_string(id + 1);
fs::path fileName{OCC_HWMON_PATH + occ + "/hwmon/"};
// Need to get the hwmonXX directory name, there better only be 1 dir
assert(std::distance(fs::directory_iterator(fileName),
fs::directory_iterator{}) == 1);
// Now set our path to this full path, including this hwmonXX directory
fileName = fs::path(*fs::directory_iterator(fileName));
// Read temperature sensors
readTempSensors(fileName, id);
if (masterOcc)
{
// Read power sensors
readPowerSensors(fileName, id);
}
return;
}
#endif
} // namespace occ
} // namespace open_power