1 #pragma once 2 #include "occ_events.hpp" 3 #include "occ_status.hpp" 4 #include "utils.hpp" 5 6 #include <libpldm/pldm.h> 7 8 #include <sdbusplus/bus/match.hpp> 9 #include <sdeventplus/event.hpp> 10 #include <sdeventplus/utility/timer.hpp> 11 12 namespace pldm 13 { 14 15 namespace MatchRules = sdbusplus::bus::match::rules; 16 using namespace open_power::occ; 17 18 using CompositeEffecterCount = uint8_t; 19 using EffecterID = uint16_t; 20 using EntityType = uint16_t; 21 using EntityInstance = uint16_t; 22 using EventState = uint8_t; 23 using InstanceToEffecter = std::map<open_power::occ::instanceID, EffecterID>; 24 using PdrList = std::vector<std::vector<uint8_t>>; 25 using SensorID = uint16_t; 26 using SensorOffset = uint8_t; 27 using SensorToInstance = std::map<SensorID, open_power::occ::instanceID>; 28 using TerminusID = uint8_t; 29 30 /** @brief Hardcoded TID */ 31 constexpr TerminusID tid = 0; 32 33 /** @brief OCC instance starts with 0 for example "occ0" */ 34 constexpr open_power::occ::instanceID start = 0; 35 36 /** @brief Hardcoded mctpEid for HBRT */ 37 constexpr mctp_eid_t mctpEid = 10; 38 39 /** @class Interface 40 * 41 * @brief Abstracts the PLDM details related to the OCC 42 */ 43 class Interface 44 { 45 public: 46 Interface() = delete; 47 ~Interface() = default; 48 Interface(const Interface&) = delete; 49 Interface& operator=(const Interface&) = delete; 50 Interface(Interface&&) = delete; 51 Interface& operator=(Interface&&) = delete; 52 53 /** @brief Constructs the PLDM Interface object for OCC functions 54 * 55 * @param[in] callBack - callBack handler to invoke when the OCC state 56 * changes. 57 */ 58 explicit Interface( 59 std::function<bool(open_power::occ::instanceID, bool)> callBack, 60 std::function<void(open_power::occ::instanceID, bool)> sbeCallBack, 61 std::function<void(bool)> safeModeCallBack, EventPtr& event) : 62 callBack(callBack), 63 sbeCallBack(sbeCallBack), safeModeCallBack(safeModeCallBack), 64 event(event), 65 pldmEventSignal( 66 open_power::occ::utils::getBus(), 67 MatchRules::type::signal() + 68 MatchRules::member("StateSensorEvent") + 69 MatchRules::path("/xyz/openbmc_project/pldm") + 70 MatchRules::interface("xyz.openbmc_project.PLDM.Event"), 71 std::bind(std::mem_fn(&Interface::sensorEvent), this, 72 std::placeholders::_1)), 73 hostStateSignal( 74 open_power::occ::utils::getBus(), 75 MatchRules::propertiesChanged("/xyz/openbmc_project/state/host0", 76 "xyz.openbmc_project.State.Host"), 77 std::bind(std::mem_fn(&Interface::hostStateEvent), this, 78 std::placeholders::_1)), 79 sdpEvent(sdeventplus::Event::get_default()), 80 pldmRspTimer( 81 sdeventplus::utility::Timer<sdeventplus::ClockId::Monotonic>( 82 sdpEvent, std::bind(&Interface::pldmRspExpired, this))) 83 {} 84 85 /** @brief Fetch the state sensor PDRs and populate the cache with 86 * sensorId to OCC/SBE instance mapping information and the sensor 87 * offset for the relevent state set. 88 * 89 * @param[in] stateSetId - the state set ID to look for 90 * @param[out] sensorInstanceMap - map of sensorID to instance 91 * @param[out] sensorOffset - sensor offset of interested state set ID 92 */ 93 void fetchSensorInfo(uint16_t stateSetId, 94 SensorToInstance& sensorInstanceMap, 95 SensorOffset& sensorOffset); 96 97 /** @brief Fetch the OCC/SBE state effecter PDRs and populate the cache 98 * with OCC/SBE instance to EffecterID information. 99 * 100 * @param[in] stateSetId - the state set ID to look for 101 * @param[out] instanceToEffecterMap - map of instance to effecterID 102 * @param[out] count - sensor offset of interested state set ID 103 * @param[out] stateIdPos - position of the stateSetID 104 */ 105 void fetchEffecterInfo(uint16_t stateSetId, 106 InstanceToEffecter& instanceToEffecterMap, 107 CompositeEffecterCount& count, uint8_t& stateIdPos); 108 109 /** @brief Prepare the request for SetStateEffecterStates command 110 * 111 * @param[in] effecterId - the instance effecter ID 112 * @param[in] effecterCount - compositeEffecterCount for the effecter PDR 113 * @param[in] stateIdPos - position of the stateSetID 114 * @param[in] stateSetValue - the value to set the state set to 115 * 116 * @return PLDM request message to be sent to host for OCC reset or SBE 117 * HRESET, empty response in the case of failure. 118 */ 119 std::vector<uint8_t> 120 prepareSetEffecterReq(EffecterID effecterId, 121 CompositeEffecterCount effecterCount, 122 uint8_t stateIdPos, uint8_t stateSetValue); 123 124 /** @brief Send the PLDM message to reset the OCC 125 * 126 * @param[in] instanceId - OCC instance to reset 127 * 128 */ 129 void resetOCC(open_power::occ::instanceID occInstanceId); 130 131 /** @brief Send the PLDM message to perform the HRESET 132 * 133 * @param[in] instanceID - SBE instance to HRESET 134 */ 135 void sendHRESET(open_power::occ::instanceID sbeInstanceId); 136 137 /** @brief Check if the OCC active sensor is available 138 * On successful read, the Manager callback will be called to update 139 * the status 140 * 141 * @param[in] instance - OCC instance to check 142 */ 143 void checkActiveSensor(uint8_t instance); 144 145 private: 146 /** @brief MCTP instance number used in PLDM requests 147 */ 148 std::optional<uint8_t> mctpInstance; 149 150 /** @brief Callback handler to be invoked when the state of the OCC 151 * changes 152 */ 153 std::function<bool(open_power::occ::instanceID, bool)> callBack = nullptr; 154 155 /** @brief Callback handler to be invoked when the maintenance state of the 156 * SBE changes 157 */ 158 std::function<void(open_power::occ::instanceID, bool)> sbeCallBack = 159 nullptr; 160 161 /** @brief Callback handler to be invoked when the OCC is in SAFE Mode = 162 * true or when OCCs are in_service = false. 163 */ 164 std::function<void(bool)> safeModeCallBack = nullptr; 165 166 /** @brief reference to sd_event wrapped in unique_ptr */ 167 EventPtr& event; 168 169 /** @brief event source wrapped in unique_ptr */ 170 EventSourcePtr eventSource; 171 172 /** @brief Used to subscribe to D-Bus PLDM StateSensorEvent signal and 173 * processes if the event corresponds to OCC state change. 174 */ 175 sdbusplus::bus::match_t pldmEventSignal; 176 177 /** @brief Used to subscribe for host state change signal */ 178 sdbusplus::bus::match_t hostStateSignal; 179 180 /** @brief PLDM Sensor ID to OCC Instance mapping 181 */ 182 SensorToInstance sensorToOCCInstance; 183 184 /** @brief PLDM Sensor ID to SBE Instance mapping 185 */ 186 SensorToInstance sensorToSBEInstance; 187 188 /** @brief Sensor offset of OCC state set ID 189 * PLDM_STATE_SET_OPERATIONAL_RUNNING_STATUS in state sensor PDR. 190 */ 191 SensorOffset OCCSensorOffset = 0; 192 193 /** @brief Sensor offset of the SBE state set ID 194 * PLDM_OEM_IBM_SBE_HRESET_STATE in state sensor PDR. 195 */ 196 SensorOffset SBESensorOffset = 0; 197 198 /** @brief OCC Instance mapping to PLDM Effecter ID 199 */ 200 InstanceToEffecter occInstanceToEffecter; 201 202 /** @brief SBE instance mapping to PLDM Effecter ID 203 */ 204 InstanceToEffecter sbeInstanceToEffecter; 205 206 /** @brief compositeEffecterCount for OCC reset state effecter PDR */ 207 CompositeEffecterCount OCCEffecterCount = 0; 208 209 /** @brief compositeEffecterCount for SBE HRESET state effecter PDR */ 210 CompositeEffecterCount SBEEffecterCount = 0; 211 212 /** @brief Position of Boot/Restart Cause stateSetID in OCC state 213 * effecter PDR 214 */ 215 uint8_t bootRestartPosition = 0; 216 217 /** @brief Position of the SBE maintenance stateSetID in the state 218 * effecter PDR 219 */ 220 uint8_t sbeMaintenanceStatePosition = 0; 221 222 /** @brief OCC instance number for the PLDM message */ 223 uint8_t pldmResponseOcc = 0; 224 225 /** @brief File descriptor for PLDM messages */ 226 int pldmFd = -1; 227 228 /** @brief The response for the PLDM request msg is received flag. 229 */ 230 bool pldmResponseReceived = false; 231 232 /** @brief The response for the PLDM request has timed out. 233 */ 234 bool pldmResponseTimeout = false; 235 236 /** @brief timer event */ 237 sdeventplus::Event sdpEvent; 238 239 /** @brief Timer that is started when PLDM command is sent 240 */ 241 sdeventplus::utility::Timer<sdeventplus::ClockId::Monotonic> pldmRspTimer; 242 243 std::set<uint8_t> outstandingHResets; 244 245 /** @brief Callback when PLDM response has not been received within the 246 * timeout period. 247 */ 248 void pldmRspExpired(); 249 250 /** @brief Close the MCTP file */ 251 void pldmClose(); 252 253 /** @brief When the OCC state changes host sends PlatformEventMessage 254 * StateSensorEvent, this function processes the D-Bus signal 255 * with the sensor event information and invokes the callback 256 * to change the OCC state. 257 * 258 * @param[in] msg - data associated with the subscribed signal 259 */ 260 void sensorEvent(sdbusplus::message_t& msg); 261 262 /** @brief When the host state changes and if the CurrentHostState is 263 * xyz.openbmc_project.State.Host.HostState.Off then 264 * the cache of OCC sensors and effecters mapping is cleared. 265 * 266 * @param[in] msg - data associated with the subscribed signal 267 */ 268 void hostStateEvent(sdbusplus::message_t& msg); 269 270 /** @brief Called when it is determined that the Host is not running. 271 * The cache of OCC sensors and effecters mapping is cleared. 272 */ 273 void clearData(); 274 275 /** @brief Check if the PDR cache for PLDM OCC sensors is valid 276 * 277 * @return true if cache is populated and false if the cache is not 278 * populated. 279 */ 280 auto isOCCSensorCacheValid() 281 { 282 return (sensorToOCCInstance.empty() ? false : true); 283 } 284 285 /** @brief Check if the PDR cache for PLDM OCC effecters is valid 286 * 287 * @return true if cache is populated and false if the cache is not 288 * populated. 289 */ 290 auto isPDREffecterCacheValid() 291 { 292 return (occInstanceToEffecter.empty() ? false : true); 293 } 294 295 /** @brief Query PLDM for the MCTP requester instance id 296 * 297 * @return true if the id was found and false if not 298 */ 299 bool getMctpInstanceId(); 300 301 /** @brief Encode a GetStateSensor command into a PLDM request 302 * @param[in] instance - OCC instance number 303 * @param[in] sensorId - OCC Active sensor ID number 304 * 305 * @return request - The encoded PLDM messsage to be sent 306 */ 307 std::vector<uint8_t> encodeGetStateSensorRequest(uint8_t instance, 308 uint16_t sensorId); 309 /** @brief Send the PLDM request 310 * 311 * @param[in] request - the request data 312 * @param[in] rspExpected - false: no need to wait for the response 313 * true: will need to process response in callback 314 */ 315 void sendPldm(const std::vector<uint8_t>& request, const uint8_t instance, 316 const bool rspExpected = false); 317 318 /** @brief Register a callback function to handle the PLDM response */ 319 void registerPldmRspCallback(); 320 321 /** @brief callback for the PLDM response event 322 * 323 * @param[in] es - Populated event source 324 * @param[in] fd - Associated File descriptor 325 * @param[in] revents - Type of event 326 * @param[in] userData - User data that was passed during registration 327 * 328 * @return - 0 or positive number on success and negative 329 * errno otherwise 330 */ 331 static int pldmRspCallback(sd_event_source* es, int fd, uint32_t revents, 332 void* userData); 333 }; 334 335 } // namespace pldm 336