blob: a10284dfe679553711c2ba09aa49ceb39fe669df [file] [log] [blame]
#pragma once
#include "occ_status.hpp"
#include "utils.hpp"
#include <libpldm/pldm.h>
#include <sdbusplus/bus/match.hpp>
namespace pldm
{
namespace MatchRules = sdbusplus::bus::match::rules;
using CompositeEffecterCount = uint8_t;
using EffecterID = uint16_t;
using EntityType = uint16_t;
using EntityInstance = uint16_t;
using EventState = uint8_t;
using OccInstanceToEffecter = std::map<open_power::occ::instanceID, EffecterID>;
using PdrList = std::vector<std::vector<uint8_t>>;
using SensorID = uint16_t;
using SensorOffset = uint8_t;
using SensorToOCCInstance = std::map<SensorID, open_power::occ::instanceID>;
using TerminusID = uint8_t;
/** @brief Hardcoded TID */
constexpr TerminusID tid = 0;
/** @brief OCC instance starts with 0 for example "occ0" */
constexpr open_power::occ::instanceID start = 0;
/** @brief Hardcoded mctpEid for HBRT */
constexpr mctp_eid_t mctpEid = 10;
/** @class Interface
*
* @brief Abstracts the PLDM details related to the OCC
*/
class Interface
{
public:
Interface() = delete;
~Interface() = default;
Interface(const Interface&) = delete;
Interface& operator=(const Interface&) = delete;
Interface(Interface&&) = delete;
Interface& operator=(Interface&&) = delete;
/** @brief Constructs the PLDM Interface object for OCC functions
*
* @param[in] callBack - callBack handler to invoke when the OCC state
* changes.
*/
explicit Interface(
std::function<bool(open_power::occ::instanceID, bool)> callBack) :
callBack(callBack),
pldmEventSignal(
open_power::occ::utils::getBus(),
MatchRules::type::signal() +
MatchRules::member("StateSensorEvent") +
MatchRules::path("/xyz/openbmc_project/pldm") +
MatchRules::interface("xyz.openbmc_project.PLDM.Event"),
std::bind(std::mem_fn(&Interface::sensorEvent), this,
std::placeholders::_1)),
hostStateSignal(
open_power::occ::utils::getBus(),
MatchRules::propertiesChanged("/xyz/openbmc_project/state/host0",
"xyz.openbmc_project.State.Host"),
std::bind(std::mem_fn(&Interface::hostStateEvent), this,
std::placeholders::_1))
{
}
/** @brief Fetch the OCC state sensor PDRs and populate the cache with
* sensorId to OCC instance mapping information and the sensor
* offset for Operational Running Status.
*
* @param[in] pdrs - OCC state sensor PDRs
* @param[out] sensorInstanceMap - map of sensorID to OCC instance
* @param[out] sensorOffset - sensor offset of interested state set ID
*/
void fetchOCCSensorInfo(const PdrList& pdrs,
SensorToOCCInstance& sensorInstanceMap,
SensorOffset& sensorOffset);
/** @brief Fetch the OCC state effecter PDRs and populate the cache with
* OCC instance to EffecterID information.
*
* @param[in] pdrs - OCC state effecter PDRs
* @param[out] instanceToEffecterMap - map of OCC instance to effecterID
* @param[out] count - sensor offset of interested state set ID
* @param[out] bootRestartPos - position of Boot/Restart Cause stateSetID
*/
void fetchOCCEffecterInfo(const PdrList& pdrs,
OccInstanceToEffecter& instanceToEffecterMap,
CompositeEffecterCount& count,
uint8_t& bootRestartPos);
/** @brief Prepare the request for SetStateEffecterStates command
*
* @param[in] instanceId - PLDM instanceID
* @param[in] instanceToEffecterMap - map of OCC instance to effecterID
* @param[in] count - compositeEffecterCount for OCC reset effecter PDR
* @param[in] bootRestartPos - position of Boot/Restart Cause stateSetID
*
* @return PLDM request message to be sent to host for OCC reset, empty
* response in the case of failure.
*/
std::vector<uint8_t>
prepareSetEffecterReq(uint8_t instanceId, EffecterID effecterId,
CompositeEffecterCount effecterCount,
uint8_t bootRestartPos);
/** @brief Send the PLDM message to reset the OCC
*
* @param[in] instanceId - OCC instance to reset
*
*/
void resetOCC(open_power::occ::instanceID occInstanceId);
private:
/** @brief Callback handler to be invoked when the state of the OCC
* changes
*/
std::function<bool(open_power::occ::instanceID, bool)> callBack = nullptr;
/** @brief Used to subscribe to D-Bus PLDM StateSensorEvent signal and
* processes if the event corresponds to OCC state change.
*/
sdbusplus::bus::match_t pldmEventSignal;
/** @brief Used to subscribe for host state change signal */
sdbusplus::bus::match_t hostStateSignal;
/** @brief PLDM Sensor ID to OCC Instance mapping
*/
SensorToOCCInstance sensorToOCCInstance;
/** @brief Sensor offset of state set ID
* PLDM_STATE_SET_OPERATIONAL_RUNNING_STATUS in state sensor PDR.
*/
SensorOffset sensorOffset;
/** @brief OCC Instance mapping to PLDM Effecter ID
*/
OccInstanceToEffecter occInstanceToEffecter;
/** @brief compositeEffecterCount for OCC reset state effecter PDR */
CompositeEffecterCount effecterCount = 0;
/** @brief Position of Boot/Restart Cause stateSetID in OCC state
* effecter PDR
*/
uint8_t bootRestartPosition = 0;
/** @brief When the OCC state changes host sends PlatformEventMessage
* StateSensorEvent, this function processes the D-Bus signal
* with the sensor event information and invokes the callback
* to change the OCC state.
*
* @param[in] msg - data associated with the subscribed signal
*/
void sensorEvent(sdbusplus::message::message& msg);
/** @brief When the host state changes and if the CurrentHostState is
* xyz.openbmc_project.State.Host.HostState.Off then
* the cache of OCC sensors and effecters mapping is cleared.
*
* @param[in] msg - data associated with the subscribed signal
*/
void hostStateEvent(sdbusplus::message::message& msg);
/** @brief Check if the PDR cache for PLDM OCC sensors is valid
*
* @return true if cache is populated and false if the cache is not
* populated.
*/
auto isOCCSensorCacheValid()
{
return (sensorToOCCInstance.empty() ? false : true);
}
/** @brief Check if the PDR cache for PLDM OCC effecters is valid
*
* @return true if cache is populated and false if the cache is not
* populated.
*/
auto isPDREffecterCacheValid()
{
return (occInstanceToEffecter.empty() ? false : true);
}
};
} // namespace pldm