include/smbiosmdrv2handler.hpp - openbmc/intel-ipmi-oem - Gitiles

 /*
 // 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.
 */

 #pragma once
 #include <ipmid/api.h>
 #include <sys/mman.h>

 #include <oemcommands.hpp>
 #include <sdbusplus/timer.hpp>

 static constexpr const char* mdrType2File = "/var/lib/smbios/smbios2";
 static constexpr const char* smbiosPath = "/var/lib/smbios";
 static constexpr const size_t msgPayloadSize =
     1024 * 60; // Total size will transfer for smbios table
 static constexpr const size_t mdriiSMSize = 0x00100000;

 static constexpr const uint16_t smbiosAgentId =
     0x0101; // Agent ID for smbios entry
 static constexpr const int firstAgentIndex = 1;

 static constexpr const uint8_t maxDirEntries = 4; // Maximum directory entries
 static constexpr const uint32_t mdr2SMSize =
     0x00100000; // Size of VGA share memory
 static constexpr const uint32_t mdr2SMBaseAddress =
     0x9FF00000; // Base address of VGA share memory

 static constexpr const uint8_t mdrTypeII = 2; // MDR V2 type

 static constexpr const uint8_t mdr2Version = 2;        // MDR V2 versoin
 static constexpr const uint8_t smbiosAgentVersion = 1; // Agent version of
                                                        // smbios

 static constexpr const uint32_t pageMask =
     0xf000; // To make data become n times of page
 static constexpr const int smbiosDirIndex = 0; // SMBIOS directory index

 static constexpr const uint32_t smbiosTableVersion =
     15; // Version of smbios table
 static constexpr const uint32_t smbiosTableTimestamp =
     0x45464748; // Time stamp when smbios table created
 static constexpr const size_t smbiosSMMemoryOffset =
     0; // Offset of VGA share memory
 static constexpr const size_t smbiosSMMemorySize =
     1024 * 1024; // Total size of VGA share memory
 static constexpr const size_t smbiosTableStorageSize =
     64 * 1024; // Total size of smbios table
 static constexpr const uint32_t defaultTimeout = 200;
 static constexpr const uint8_t sysClock = 100;
 static constexpr const int lastAgentIndex = -1;
 static constexpr const uint16_t lastAgentId = 0xFFFF;
 constexpr const uint32_t invalidChecksum = 0xffffffff;
 constexpr const char* dbusProperties = "org.freedesktop.DBus.Properties";
 constexpr const char* mdrv2Path = "/xyz/openbmc_project/Smbios/MDR_V2";
 constexpr const char* mdrv2Interface = "xyz.openbmc_project.Smbios.MDR_V2";

 enum class MDR2SMBIOSStatusEnum
 {
     mdr2Init = 0,
     mdr2Loaded = 1,
     mdr2Updated = 2,
     mdr2Updating = 3
 };

 enum class DirDataRequestEnum
 {
     dirDataNotRequested = 0x00,
     dirDataRequested = 0x01
 };

 enum MDR2DirLockEnum
 {
     mdr2DirUnlock = 0,
     mdr2DirLock = 1
 };

 #pragma pack(push)
 #pragma pack(1)

 struct MDRSMBIOSHeader
 {
     uint8_t dirVer;
     uint8_t mdrType;
     uint32_t timestamp;
     uint32_t dataSize;
 };

 struct DataIdStruct
 {
     uint8_t dataInfo[16];
 };

 struct Mdr2DirEntry
 {
     DataIdStruct id;
     uint32_t size;
     uint32_t dataSetSize;
     uint32_t dataVersion;
     uint32_t timestamp;
 };

 struct Mdr2DirLocalStruct
 {
     Mdr2DirEntry common;
     MDR2SMBIOSStatusEnum stage;
     MDR2DirLockEnum lock;
     uint16_t lockHandle;
     uint32_t xferBuff;
     uint32_t xferSize;
     uint32_t maxDataSize;
     uint8_t* dataStorage;
 };

 struct Mdr2DirStruct
 {
     uint8_t agentVersion;
     uint8_t dirVersion;
     uint8_t dirEntries;
     uint8_t status; // valid / locked / etc
     uint8_t remoteDirVersion;
     uint16_t sessionHandle;
     Mdr2DirLocalStruct dir[maxDirEntries];
 };

 // Three members include dataSetSize, dataVersion and timestamp
 static constexpr const size_t syncDirCommonSize = 3;

 // ====================== MDR II Pull Command Structures ======================
 struct MDRiiGetDataInfoRequest
 {
     uint16_t agentId;
     DataIdStruct dataSetInfo;
 };

 // MDR II data set information inquiry response
 struct MDRiiGetDataInfoResponse
 {
     uint8_t mdrVersion;
     DataIdStruct dataSetId;
     uint8_t validFlag;
     uint32_t dataLength;
     uint32_t dataVersion;
     uint32_t timeStamp;
 };

 // ====================== MDR II Push Command Structures ======================
 // MDR II Client send data set info offer response
 struct MDRiiOfferDataInfoResponse
 {
     DataIdStruct dataSetInfo;
 };

 // MDR II Push Agent send data set info command
 struct MDRiiSendDataInfoRequest
 {
     uint16_t agentId;
     DataIdStruct dataSetInfo;
     uint8_t validFlag;
     uint32_t dataLength;
     uint32_t dataVersion; // Roughly equivalent to the "file name"
     uint32_t
         timeStamp; // More info on the identity of this particular set of data
 };

 // MDR II Pull Agent lock data set command
 struct MDRiiLockDataRequest
 {
     uint16_t agentId;
     DataIdStruct dataSetInfo;
     uint16_t timeout;
 };

 // MDR II Pull Agent lock data set response
 struct MDRiiLockDataResponse
 {
     uint8_t mdrVersion;
     uint16_t lockHandle;
     uint32_t dataLength;
     uint32_t xferAddress;
     uint32_t xferLength;
 };

 // MDR II Push Agent send data start command
 struct MDRiiDataStartRequest
 {
     uint16_t agentId;
     DataIdStruct dataSetInfo;
     uint32_t dataLength;
     uint32_t xferAddress;
     uint32_t xferLength;
     uint16_t timeout;
 };

 // MDR II Client send data start response
 struct MDRiiDataStartResponse
 {
     uint8_t xferStartAck;
     uint16_t sessionHandle;
 };

 // MDR II
 struct MDRiiDataDoneRequest
 {
     uint16_t agentId;
     uint16_t lockHandle;
 };

 #pragma pack(pop)

 class SharedMemoryArea
 {
   public:
     SharedMemoryArea(uint32_t addr, uint32_t areaSize) :
         vPtr(nullptr), physicalAddr(addr), size(areaSize)
     {
         Initialize(addr, areaSize);
     }

     ~SharedMemoryArea()
     {
         if ((vPtr != nullptr) && (vPtr != MAP_FAILED))
         {
             if (0 != munmap(vPtr, size))
             {
                 phosphor::logging::log<phosphor::logging::level::ERR>(
                     "Ummap share memory failed");
             }
         }
     }

     void* vPtr;

   private:
     uint32_t physicalAddr;
     uint32_t size;

     void Initialize(uint32_t addr, uint32_t areaSize);
 };

 class MDRV2
 {
   public:
     MDRV2()
     {
         timer =
             std::make_unique<phosphor::Timer>([&](void) { timeoutHandler(); });
     }

     int agentLookup(const uint16_t& agentId);
     int findLockHandle(const uint16_t& lockHandle);
     int syncDirCommonData(uint8_t idIndex, uint32_t size,
                           const std::string& service);
     int findDataId(const uint8_t* dataInfo, const size_t& len,
                    const std::string& service);
     uint16_t getSessionHandle(Mdr2DirStruct* dir);
     bool smbiosIsUpdating(uint8_t index);
     uint32_t calcChecksum32(uint8_t* buf, uint32_t len);
     bool storeDatatoFlash(MDRSMBIOSHeader* mdrHdr, uint8_t* data);
     bool smbiosUnlock(uint8_t index);
     void timeoutHandler();
     bool smbiosTryLock(uint8_t flag, uint8_t index, uint16_t* session,
                        uint16_t timeout);
     int sdplusMdrv2GetProperty(const std::string& name,
                                std::variant<uint8_t>& value,
                                const std::string& service);

     Mdr2DirStruct smbiosDir{smbiosAgentVersion,
                             1,
                             1,
                             1,
                             0,
                             0,
                             {40,
                              41,
                              42,
                              43,
                              44,
                              45,
                              46,
                              47,
                              48,
                              49,
                              50,
                              51,
                              52,
                              53,
                              54,
                              0x42,
                              0,
                              smbiosTableStorageSize,
                              smbiosTableVersion,
                              smbiosTableTimestamp,
                              MDR2SMBIOSStatusEnum::mdr2Init,
                              MDR2DirLockEnum::mdr2DirUnlock,
                              0,
                              smbiosSMMemoryOffset,
                              smbiosSMMemorySize,
                              smbiosTableStorageSize,
                              smbiosTableStorage}};
     std::unique_ptr<SharedMemoryArea> area;
     std::unique_ptr<phosphor::Timer> timer;

   private:
     uint8_t lockIndex = 0;
     uint8_t smbiosTableStorage[smbiosTableStorageSize];
 };
	/*
	// 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.
	*/

	#pragma once
	#include <ipmid/api.h>
	#include <sys/mman.h>

	#include <oemcommands.hpp>
	#include <sdbusplus/timer.hpp>

	static constexpr const char* mdrType2File = "/var/lib/smbios/smbios2";
	static constexpr const char* smbiosPath = "/var/lib/smbios";
	static constexpr const size_t msgPayloadSize =
	1024 * 60; // Total size will transfer for smbios table
	static constexpr const size_t mdriiSMSize = 0x00100000;

	static constexpr const uint16_t smbiosAgentId =
	0x0101; // Agent ID for smbios entry
	static constexpr const int firstAgentIndex = 1;

	static constexpr const uint8_t maxDirEntries = 4; // Maximum directory entries
	static constexpr const uint32_t mdr2SMSize =
	0x00100000; // Size of VGA share memory
	static constexpr const uint32_t mdr2SMBaseAddress =
	0x9FF00000; // Base address of VGA share memory

	static constexpr const uint8_t mdrTypeII = 2; // MDR V2 type

	static constexpr const uint8_t mdr2Version = 2; // MDR V2 versoin
	static constexpr const uint8_t smbiosAgentVersion = 1; // Agent version of
	// smbios

	static constexpr const uint32_t pageMask =
	0xf000; // To make data become n times of page
	static constexpr const int smbiosDirIndex = 0; // SMBIOS directory index

	static constexpr const uint32_t smbiosTableVersion =
	15; // Version of smbios table
	static constexpr const uint32_t smbiosTableTimestamp =
	0x45464748; // Time stamp when smbios table created
	static constexpr const size_t smbiosSMMemoryOffset =
	0; // Offset of VGA share memory
	static constexpr const size_t smbiosSMMemorySize =
	1024 * 1024; // Total size of VGA share memory
	static constexpr const size_t smbiosTableStorageSize =
	64 * 1024; // Total size of smbios table
	static constexpr const uint32_t defaultTimeout = 200;
	static constexpr const uint8_t sysClock = 100;
	static constexpr const int lastAgentIndex = -1;
	static constexpr const uint16_t lastAgentId = 0xFFFF;
	constexpr const uint32_t invalidChecksum = 0xffffffff;
	constexpr const char* dbusProperties = "org.freedesktop.DBus.Properties";
	constexpr const char* mdrv2Path = "/xyz/openbmc_project/Smbios/MDR_V2";
	constexpr const char* mdrv2Interface = "xyz.openbmc_project.Smbios.MDR_V2";

	enum class MDR2SMBIOSStatusEnum
	{
	mdr2Init = 0,
	mdr2Loaded = 1,
	mdr2Updated = 2,
	mdr2Updating = 3
	};

	enum class DirDataRequestEnum
	{
	dirDataNotRequested = 0x00,
	dirDataRequested = 0x01
	};

	enum MDR2DirLockEnum
	{
	mdr2DirUnlock = 0,
	mdr2DirLock = 1
	};

	#pragma pack(push)
	#pragma pack(1)

	struct MDRSMBIOSHeader
	{
	uint8_t dirVer;
	uint8_t mdrType;
	uint32_t timestamp;
	uint32_t dataSize;
	};

	struct DataIdStruct
	{
	uint8_t dataInfo[16];
	};

	struct Mdr2DirEntry
	{
	DataIdStruct id;
	uint32_t size;
	uint32_t dataSetSize;
	uint32_t dataVersion;
	uint32_t timestamp;
	};

	struct Mdr2DirLocalStruct
	{
	Mdr2DirEntry common;
	MDR2SMBIOSStatusEnum stage;
	MDR2DirLockEnum lock;
	uint16_t lockHandle;
	uint32_t xferBuff;
	uint32_t xferSize;
	uint32_t maxDataSize;
	uint8_t* dataStorage;
	};

	struct Mdr2DirStruct
	{
	uint8_t agentVersion;
	uint8_t dirVersion;
	uint8_t dirEntries;
	uint8_t status; // valid / locked / etc
	uint8_t remoteDirVersion;
	uint16_t sessionHandle;
	Mdr2DirLocalStruct dir[maxDirEntries];
	};

	// Three members include dataSetSize, dataVersion and timestamp
	static constexpr const size_t syncDirCommonSize = 3;

	// ====================== MDR II Pull Command Structures ======================
	struct MDRiiGetDataInfoRequest
	{
	uint16_t agentId;
	DataIdStruct dataSetInfo;
	};

	// MDR II data set information inquiry response
	struct MDRiiGetDataInfoResponse
	{
	uint8_t mdrVersion;
	DataIdStruct dataSetId;
	uint8_t validFlag;
	uint32_t dataLength;
	uint32_t dataVersion;
	uint32_t timeStamp;
	};

	// ====================== MDR II Push Command Structures ======================
	// MDR II Client send data set info offer response
	struct MDRiiOfferDataInfoResponse
	{
	DataIdStruct dataSetInfo;
	};

	// MDR II Push Agent send data set info command
	struct MDRiiSendDataInfoRequest
	{
	uint16_t agentId;
	DataIdStruct dataSetInfo;
	uint8_t validFlag;
	uint32_t dataLength;
	uint32_t dataVersion; // Roughly equivalent to the "file name"
	uint32_t
	timeStamp; // More info on the identity of this particular set of data
	};

	// MDR II Pull Agent lock data set command
	struct MDRiiLockDataRequest
	{
	uint16_t agentId;
	DataIdStruct dataSetInfo;
	uint16_t timeout;
	};

	// MDR II Pull Agent lock data set response
	struct MDRiiLockDataResponse
	{
	uint8_t mdrVersion;
	uint16_t lockHandle;
	uint32_t dataLength;
	uint32_t xferAddress;
	uint32_t xferLength;
	};

	// MDR II Push Agent send data start command
	struct MDRiiDataStartRequest
	{
	uint16_t agentId;
	DataIdStruct dataSetInfo;
	uint32_t dataLength;
	uint32_t xferAddress;
	uint32_t xferLength;
	uint16_t timeout;
	};

	// MDR II Client send data start response
	struct MDRiiDataStartResponse
	{
	uint8_t xferStartAck;
	uint16_t sessionHandle;
	};

	// MDR II
	struct MDRiiDataDoneRequest
	{
	uint16_t agentId;
	uint16_t lockHandle;
	};

	#pragma pack(pop)

	class SharedMemoryArea
	{
	public:
	SharedMemoryArea(uint32_t addr, uint32_t areaSize) :
	vPtr(nullptr), physicalAddr(addr), size(areaSize)
	{
	Initialize(addr, areaSize);
	}

	~SharedMemoryArea()
	{
	if ((vPtr != nullptr) && (vPtr != MAP_FAILED))
	{
	if (0 != munmap(vPtr, size))
	{
	phosphor::logging::log<phosphor::logging::level::ERR>(
	"Ummap share memory failed");
	}
	}
	}

	void* vPtr;

	private:
	uint32_t physicalAddr;
	uint32_t size;

	void Initialize(uint32_t addr, uint32_t areaSize);
	};

	class MDRV2
	{
	public:
	MDRV2()
	{
	timer =
	std::make_unique<phosphor::Timer>([&](void) { timeoutHandler(); });
	}

	int agentLookup(const uint16_t& agentId);
	int findLockHandle(const uint16_t& lockHandle);
	int syncDirCommonData(uint8_t idIndex, uint32_t size,
	const std::string& service);
	int findDataId(const uint8_t* dataInfo, const size_t& len,
	const std::string& service);
	uint16_t getSessionHandle(Mdr2DirStruct* dir);
	bool smbiosIsUpdating(uint8_t index);
	uint32_t calcChecksum32(uint8_t* buf, uint32_t len);
	bool storeDatatoFlash(MDRSMBIOSHeader* mdrHdr, uint8_t* data);
	bool smbiosUnlock(uint8_t index);
	void timeoutHandler();
	bool smbiosTryLock(uint8_t flag, uint8_t index, uint16_t* session,
	uint16_t timeout);
	int sdplusMdrv2GetProperty(const std::string& name,
	std::variant<uint8_t>& value,
	const std::string& service);

	Mdr2DirStruct smbiosDir{smbiosAgentVersion,
	1,
	1,
	1,
	0,
	0,
	{40,
	41,
	42,
	43,
	44,
	45,
	46,
	47,
	48,
	49,
	50,
	51,
	52,
	53,
	54,
	0x42,
	0,
	smbiosTableStorageSize,
	smbiosTableVersion,
	smbiosTableTimestamp,
	MDR2SMBIOSStatusEnum::mdr2Init,
	MDR2DirLockEnum::mdr2DirUnlock,
	0,
	smbiosSMMemoryOffset,
	smbiosSMMemorySize,
	smbiosTableStorageSize,
	smbiosTableStorage}};
	std::unique_ptr<SharedMemoryArea> area;
	std::unique_ptr<phosphor::Timer> timer;

	private:
	uint8_t lockIndex = 0;
	uint8_t smbiosTableStorage[smbiosTableStorageSize];
	};