phosphor-power-supply/power_supply.cpp - openbmc/phosphor-power - Gitiles

 #include "config.h"

 #include "power_supply.hpp"

 #include "types.hpp"
 #include "util.hpp"

 #include <xyz/openbmc_project/Common/Device/error.hpp>

 #include <chrono>  // sleep_for()
 #include <cstdint> // uint8_t...
 #include <thread>  // sleep_for()

 namespace phosphor::power::psu
 {

 using namespace phosphor::logging;
 using namespace sdbusplus::xyz::openbmc_project::Common::Device::Error;

 void PowerSupply::updatePresence()
 {
     try
     {
         present = getPresence(bus, inventoryPath);
     }
     catch (const sdbusplus::exception::SdBusError& e)
     {
         // Relying on property change or interface added to retry.
         // Log an informational trace to the journal.
         log<level::INFO>("D-Bus property access failure exception");
     }
 }

 void PowerSupply::analyze()
 {
     using namespace phosphor::pmbus;

     if ((present) && (readFail < LOG_LIMIT))
     {
         try
         {
             statusWord = pmbusIntf->read(STATUS_WORD, Type::Debug);
             // Read worked, reset the fail count.
             readFail = 0;

             if (statusWord)
             {
                 if (statusWord & status_word::INPUT_FAULT_WARN)
                 {
                     if (!inputFault)
                     {
                         log<level::INFO>(
                             "INPUT fault",
                             entry("STATUS_WORD=0x%04X",
                                   static_cast<uint16_t>(statusWord)));
                     }

                     faultFound = true;
                     inputFault = true;
                 }

                 if (statusWord & status_word::MFR_SPECIFIC_FAULT)
                 {
                     if (!mfrFault)
                     {
                         log<level::INFO>(
                             "MFRSPECIFIC fault",
                             entry("STATUS_WORD=0x%04X",
                                   static_cast<uint16_t>(statusWord)));
                     }
                     faultFound = true;
                     mfrFault = true;
                 }

                 if (statusWord & status_word::VIN_UV_FAULT)
                 {
                     if (!vinUVFault)
                     {
                         log<level::INFO>(
                             "VIN_UV fault",
                             entry("STATUS_WORD=0x%04X",
                                   static_cast<uint16_t>(statusWord)));
                     }

                     faultFound = true;
                     vinUVFault = true;
                 }
             }
             else
             {
                 faultFound = false;
                 inputFault = false;
                 mfrFault = false;
                 vinUVFault = false;
             }
         }
         catch (ReadFailure& e)
         {
             readFail++;
             phosphor::logging::commit<ReadFailure>();
         }
     }
 }

 void PowerSupply::onOffConfig(uint8_t data)
 {
     using namespace phosphor::pmbus;

     if (present)
     {
         log<level::INFO>("ON_OFF_CONFIG write", entry("DATA=0x%02X", data));
         try
         {
             std::vector<uint8_t> configData{data};
             pmbusIntf->writeBinary(ON_OFF_CONFIG, configData,
                                    Type::HwmonDeviceDebug);
         }
         catch (...)
         {
             // The underlying code in writeBinary will log a message to the
             // journal if the write fails. If the ON_OFF_CONFIG is not setup as
             // desired, later fault detection and analysis code should catch any
             // of the fall out. We should not need to terminate the application
             // if this write fails.
         }
     }
 }

 void PowerSupply::clearFaults()
 {
     faultFound = false;
     inputFault = false;
     mfrFault = false;
     vinUVFault = false;
     readFail = 0;
     faultLogged = false;

     // The PMBus device driver does not allow for writing CLEAR_FAULTS
     // directly. However, the pmbus hwmon device driver code will send a
     // CLEAR_FAULTS after reading from any of the hwmon "files" in sysfs, so
     // reading in1_input should result in clearing the fault bits in
     // STATUS_BYTE/STATUS_WORD.
     // I do not care what the return value is.
     try
     {
         static_cast<void>(
             pmbusIntf->read("in1_input", phosphor::pmbus::Type::Hwmon));
     }
     catch (ReadFailure& e)
     {
         // Since I do not care what the return value is, I really do not
         // care much if it gets a ReadFailure either. However, this should not
         // prevent the application from continuing to run, so catching the read
         // failure.
     }
 }

 void PowerSupply::inventoryChanged(sdbusplus::message::message& msg)
 {
     std::string msgSensor;
     std::map<std::string, std::variant<uint32_t, bool>> msgData;
     msg.read(msgSensor, msgData);

     // Check if it was the Present property that changed.
     auto valPropMap = msgData.find(PRESENT_PROP);
     if (valPropMap != msgData.end())
     {
         if (std::get<bool>(valPropMap->second))
         {
             present = true;
             // TODO: Immediately trying to read or write the "files" causes read
             // or write failures.
             using namespace std::chrono_literals;
             std::this_thread::sleep_for(20ms);
             onOffConfig(phosphor::pmbus::ON_OFF_CONFIG_CONTROL_PIN_ONLY);
             clearFaults();
             updateInventory();
         }
         else
         {
             present = false;

             // Clear out the now outdated inventory properties
             updateInventory();
         }
     }
 }

 void PowerSupply::updateInventory()
 {
     using namespace phosphor::pmbus;

 #ifdef IBM_VPD
     std::string ccin;
     std::string pn;
     std::string fn;
     std::string header;
     std::string sn;
     std::string version;
     using PropertyMap =
         std::map<std::string, std::variant<std::string, std::vector<uint8_t>>>;
     PropertyMap assetProps;
     PropertyMap versionProps;
     PropertyMap ipzvpdDINFProps;
     PropertyMap ipzvpdVINIProps;
     using InterfaceMap = std::map<std::string, PropertyMap>;
     InterfaceMap interfaces;
     using ObjectMap = std::map<sdbusplus::message::object_path, InterfaceMap>;
     ObjectMap object;
 #endif

     if (present)
     {
         // TODO: non-IBM inventory updates?

 #ifdef IBM_VPD
         try
         {
             ccin = pmbusIntf->readString(CCIN, Type::HwmonDeviceDebug);
             assetProps.emplace(MODEL_PROP, ccin);
         }
         catch (ReadFailure& e)
         {
             // Ignore the read failure, let pmbus code indicate failure, path...
             // TODO - ibm918
             // https://github.com/openbmc/docs/blob/master/designs/vpd-collection.md
             // The BMC must log errors if any of the VPD cannot be properly
             // parsed or fails ECC checks.
         }

         try
         {
             pn = pmbusIntf->readString(PART_NUMBER, Type::HwmonDeviceDebug);
             assetProps.emplace(PN_PROP, pn);
         }
         catch (ReadFailure& e)
         {
             // Ignore the read failure, let pmbus code indicate failure, path...
         }

         try
         {
             fn = pmbusIntf->readString(FRU_NUMBER, Type::HwmonDeviceDebug);
         }
         catch (ReadFailure& e)
         {
             // Ignore the read failure, let pmbus code indicate failure, path...
         }

         try
         {
             header =
                 pmbusIntf->readString(SERIAL_HEADER, Type::HwmonDeviceDebug);
             sn = pmbusIntf->readString(SERIAL_NUMBER, Type::HwmonDeviceDebug);
             assetProps.emplace(SN_PROP, sn);
         }
         catch (ReadFailure& e)
         {
             // Ignore the read failure, let pmbus code indicate failure, path...
         }

         try
         {
             version = pmbusIntf->readString(FW_VERSION, Type::HwmonDeviceDebug);
             versionProps.emplace(VERSION_PROP, version);
         }
         catch (ReadFailure& e)
         {
             // Ignore the read failure, let pmbus code indicate failure, path...
         }

         ipzvpdVINIProps.emplace("CC",
                                 std::vector<uint8_t>(ccin.begin(), ccin.end()));
         ipzvpdVINIProps.emplace("PN",
                                 std::vector<uint8_t>(pn.begin(), pn.end()));
         ipzvpdVINIProps.emplace("FN",
                                 std::vector<uint8_t>(fn.begin(), fn.end()));
         std::string header_sn = header + sn + '\0';
         ipzvpdVINIProps.emplace(
             "SN", std::vector<uint8_t>(header_sn.begin(), header_sn.end()));
         std::string description = "IBM PS";
         ipzvpdVINIProps.emplace(
             "DR", std::vector<uint8_t>(description.begin(), description.end()));

         // Update the Resource Identifier (RI) keyword
         // 2 byte FRC: 0x0003
         // 2 byte RID: 0x1000, 0x1001...
         std::uint8_t num = std::stoul(
             inventoryPath.substr(inventoryPath.size() - 1, 1), nullptr, 0);
         std::vector<uint8_t> ri{0x00, 0x03, 0x10, num};
         ipzvpdDINFProps.emplace("RI", ri);

         // Fill in the FRU Label (FL) keyword.
         std::string fl = "E";
         fl.push_back(inventoryPath.back());
         fl.resize(FL_KW_SIZE, ' ');
         ipzvpdDINFProps.emplace("FL",
                                 std::vector<uint8_t>(fl.begin(), fl.end()));

         interfaces.emplace(ASSET_IFACE, std::move(assetProps));
         interfaces.emplace(VERSION_IFACE, std::move(versionProps));
         interfaces.emplace(DINF_IFACE, std::move(ipzvpdDINFProps));
         interfaces.emplace(VINI_IFACE, std::move(ipzvpdVINIProps));

         auto path = inventoryPath.substr(strlen(INVENTORY_OBJ_PATH));
         object.emplace(path, std::move(interfaces));

         try
         {
             auto service =
                 util::getService(INVENTORY_OBJ_PATH, INVENTORY_MGR_IFACE, bus);

             if (service.empty())
             {
                 log<level::ERR>("Unable to get inventory manager service");
                 return;
             }

             auto method =
                 bus.new_method_call(service.c_str(), INVENTORY_OBJ_PATH,
                                     INVENTORY_MGR_IFACE, "Notify");

             method.append(std::move(object));

             auto reply = bus.call(method);
         }
         catch (std::exception& e)
         {
             log<level::ERR>(
                 std::string(e.what() + std::string(" PATH=") + inventoryPath)
                     .c_str());
         }
 #endif
     }
 }

 } // namespace phosphor::power::psu
	#include "config.h"

	#include "power_supply.hpp"

	#include "types.hpp"
	#include "util.hpp"

	#include <xyz/openbmc_project/Common/Device/error.hpp>

	#include <chrono> // sleep_for()
	#include <cstdint> // uint8_t...
	#include <thread> // sleep_for()

	namespace phosphor::power::psu
	{

	using namespace phosphor::logging;
	using namespace sdbusplus::xyz::openbmc_project::Common::Device::Error;

	void PowerSupply::updatePresence()
	{
	try
	{
	present = getPresence(bus, inventoryPath);
	}
	catch (const sdbusplus::exception::SdBusError& e)
	{
	// Relying on property change or interface added to retry.
	// Log an informational trace to the journal.
	log<level::INFO>("D-Bus property access failure exception");
	}
	}

	void PowerSupply::analyze()
	{
	using namespace phosphor::pmbus;

	if ((present) && (readFail < LOG_LIMIT))
	{
	try
	{
	statusWord = pmbusIntf->read(STATUS_WORD, Type::Debug);
	// Read worked, reset the fail count.
	readFail = 0;

	if (statusWord)
	{
	if (statusWord & status_word::INPUT_FAULT_WARN)
	{
	if (!inputFault)
	{
	log<level::INFO>(
	"INPUT fault",
	entry("STATUS_WORD=0x%04X",
	static_cast<uint16_t>(statusWord)));
	}

	faultFound = true;
	inputFault = true;
	}

	if (statusWord & status_word::MFR_SPECIFIC_FAULT)
	{
	if (!mfrFault)
	{
	log<level::INFO>(
	"MFRSPECIFIC fault",
	entry("STATUS_WORD=0x%04X",
	static_cast<uint16_t>(statusWord)));
	}
	faultFound = true;
	mfrFault = true;
	}

	if (statusWord & status_word::VIN_UV_FAULT)
	{
	if (!vinUVFault)
	{
	log<level::INFO>(
	"VIN_UV fault",
	entry("STATUS_WORD=0x%04X",
	static_cast<uint16_t>(statusWord)));
	}

	faultFound = true;
	vinUVFault = true;
	}
	}
	else
	{
	faultFound = false;
	inputFault = false;
	mfrFault = false;
	vinUVFault = false;
	}
	}
	catch (ReadFailure& e)
	{
	readFail++;
	phosphor::logging::commit<ReadFailure>();
	}
	}
	}

	void PowerSupply::onOffConfig(uint8_t data)
	{
	using namespace phosphor::pmbus;

	if (present)
	{
	log<level::INFO>("ON_OFF_CONFIG write", entry("DATA=0x%02X", data));
	try
	{
	std::vector<uint8_t> configData{data};
	pmbusIntf->writeBinary(ON_OFF_CONFIG, configData,
	Type::HwmonDeviceDebug);
	}
	catch (...)
	{
	// The underlying code in writeBinary will log a message to the
	// journal if the write fails. If the ON_OFF_CONFIG is not setup as
	// desired, later fault detection and analysis code should catch any
	// of the fall out. We should not need to terminate the application
	// if this write fails.
	}
	}
	}

	void PowerSupply::clearFaults()
	{
	faultFound = false;
	inputFault = false;
	mfrFault = false;
	vinUVFault = false;
	readFail = 0;
	faultLogged = false;

	// The PMBus device driver does not allow for writing CLEAR_FAULTS
	// directly. However, the pmbus hwmon device driver code will send a
	// CLEAR_FAULTS after reading from any of the hwmon "files" in sysfs, so
	// reading in1_input should result in clearing the fault bits in
	// STATUS_BYTE/STATUS_WORD.
	// I do not care what the return value is.
	try
	{
	static_cast<void>(
	pmbusIntf->read("in1_input", phosphor::pmbus::Type::Hwmon));
	}
	catch (ReadFailure& e)
	{
	// Since I do not care what the return value is, I really do not
	// care much if it gets a ReadFailure either. However, this should not
	// prevent the application from continuing to run, so catching the read
	// failure.
	}
	}

	void PowerSupply::inventoryChanged(sdbusplus::message::message& msg)
	{
	std::string msgSensor;
	std::map<std::string, std::variant<uint32_t, bool>> msgData;
	msg.read(msgSensor, msgData);

	// Check if it was the Present property that changed.
	auto valPropMap = msgData.find(PRESENT_PROP);
	if (valPropMap != msgData.end())
	{
	if (std::get<bool>(valPropMap->second))
	{
	present = true;
	// TODO: Immediately trying to read or write the "files" causes read
	// or write failures.
	using namespace std::chrono_literals;
	std::this_thread::sleep_for(20ms);
	onOffConfig(phosphor::pmbus::ON_OFF_CONFIG_CONTROL_PIN_ONLY);
	clearFaults();
	updateInventory();
	}
	else
	{
	present = false;

	// Clear out the now outdated inventory properties
	updateInventory();
	}
	}
	}

	void PowerSupply::updateInventory()
	{
	using namespace phosphor::pmbus;

	#ifdef IBM_VPD
	std::string ccin;
	std::string pn;
	std::string fn;
	std::string header;
	std::string sn;
	std::string version;
	using PropertyMap =
	std::map<std::string, std::variant<std::string, std::vector<uint8_t>>>;
	PropertyMap assetProps;
	PropertyMap versionProps;
	PropertyMap ipzvpdDINFProps;
	PropertyMap ipzvpdVINIProps;
	using InterfaceMap = std::map<std::string, PropertyMap>;
	InterfaceMap interfaces;
	using ObjectMap = std::map<sdbusplus::message::object_path, InterfaceMap>;
	ObjectMap object;
	#endif

	if (present)
	{
	// TODO: non-IBM inventory updates?

	#ifdef IBM_VPD
	try
	{
	ccin = pmbusIntf->readString(CCIN, Type::HwmonDeviceDebug);
	assetProps.emplace(MODEL_PROP, ccin);
	}
	catch (ReadFailure& e)
	{
	// Ignore the read failure, let pmbus code indicate failure, path...
	// TODO - ibm918
	// https://github.com/openbmc/docs/blob/master/designs/vpd-collection.md
	// The BMC must log errors if any of the VPD cannot be properly
	// parsed or fails ECC checks.
	}

	try
	{
	pn = pmbusIntf->readString(PART_NUMBER, Type::HwmonDeviceDebug);
	assetProps.emplace(PN_PROP, pn);
	}
	catch (ReadFailure& e)
	{
	// Ignore the read failure, let pmbus code indicate failure, path...
	}

	try
	{
	fn = pmbusIntf->readString(FRU_NUMBER, Type::HwmonDeviceDebug);
	}
	catch (ReadFailure& e)
	{
	// Ignore the read failure, let pmbus code indicate failure, path...
	}

	try
	{
	header =
	pmbusIntf->readString(SERIAL_HEADER, Type::HwmonDeviceDebug);
	sn = pmbusIntf->readString(SERIAL_NUMBER, Type::HwmonDeviceDebug);
	assetProps.emplace(SN_PROP, sn);
	}
	catch (ReadFailure& e)
	{
	// Ignore the read failure, let pmbus code indicate failure, path...
	}

	try
	{
	version = pmbusIntf->readString(FW_VERSION, Type::HwmonDeviceDebug);
	versionProps.emplace(VERSION_PROP, version);
	}
	catch (ReadFailure& e)
	{
	// Ignore the read failure, let pmbus code indicate failure, path...
	}

	ipzvpdVINIProps.emplace("CC",
	std::vector<uint8_t>(ccin.begin(), ccin.end()));
	ipzvpdVINIProps.emplace("PN",
	std::vector<uint8_t>(pn.begin(), pn.end()));
	ipzvpdVINIProps.emplace("FN",
	std::vector<uint8_t>(fn.begin(), fn.end()));
	std::string header_sn = header + sn + '\0';
	ipzvpdVINIProps.emplace(
	"SN", std::vector<uint8_t>(header_sn.begin(), header_sn.end()));
	std::string description = "IBM PS";
	ipzvpdVINIProps.emplace(
	"DR", std::vector<uint8_t>(description.begin(), description.end()));

	// Update the Resource Identifier (RI) keyword
	// 2 byte FRC: 0x0003
	// 2 byte RID: 0x1000, 0x1001...
	std::uint8_t num = std::stoul(
	inventoryPath.substr(inventoryPath.size() - 1, 1), nullptr, 0);
	std::vector<uint8_t> ri{0x00, 0x03, 0x10, num};
	ipzvpdDINFProps.emplace("RI", ri);

	// Fill in the FRU Label (FL) keyword.
	std::string fl = "E";
	fl.push_back(inventoryPath.back());
	fl.resize(FL_KW_SIZE, ' ');
	ipzvpdDINFProps.emplace("FL",
	std::vector<uint8_t>(fl.begin(), fl.end()));

	interfaces.emplace(ASSET_IFACE, std::move(assetProps));
	interfaces.emplace(VERSION_IFACE, std::move(versionProps));
	interfaces.emplace(DINF_IFACE, std::move(ipzvpdDINFProps));
	interfaces.emplace(VINI_IFACE, std::move(ipzvpdVINIProps));

	auto path = inventoryPath.substr(strlen(INVENTORY_OBJ_PATH));
	object.emplace(path, std::move(interfaces));

	try
	{
	auto service =
	util::getService(INVENTORY_OBJ_PATH, INVENTORY_MGR_IFACE, bus);

	if (service.empty())
	{
	log<level::ERR>("Unable to get inventory manager service");
	return;
	}

	auto method =
	bus.new_method_call(service.c_str(), INVENTORY_OBJ_PATH,
	INVENTORY_MGR_IFACE, "Notify");

	method.append(std::move(object));

	auto reply = bus.call(method);
	}
	catch (std::exception& e)
	{
	log<level::ERR>(
	std::string(e.what() + std::string(" PATH=") + inventoryPath)
	.c_str());
	}
	#endif
	}
	}

	} // namespace phosphor::power::psu