xref: /openbmc/libcper/sections/cper-section-cxl-protocol.h (revision aec83900)

#ifndef CPER_SECTION_CXL_PROTOCOL_H
#define CPER_SECTION_CXL_PROTOCOL_H

#include "json.h"
#include "../edk/Cper.h"

#define CXL_PROTOCOL_ERROR_VALID_BITFIELD_NAMES (const char*[]) {"cxlAgentTypeValid", "cxlAgentAddressValid", \
    "deviceIDValid", "deviceSerialValid", "capabilityStructureValid", "cxlDVSECValid", "cxlErrorLogValid"}
#define CXL_PROTOCOL_ERROR_AGENT_TYPES_KEYS (int []){0, 1}
#define CXL_PROTOCOL_ERROR_AGENT_TYPES_VALUES (const char*[]){"CXL 1.1 Device", "CXL 1.1 Host Downstream Port"}
#define CXL_PROTOCOL_ERROR_DEVICE_AGENT 0
#define CXL_PROTOCOL_ERROR_HOST_DOWNSTREAM_PORT_AGENT 1

///
/// CXL Protocol Error Section
///
typedef struct {
    UINT64 VendorId : 16;
    UINT64 DeviceId : 16;
    UINT64 SubsystemVendorId : 16;
    UINT64 SubsystemDeviceId : 16;
    UINT64 ClassCode : 16;
    UINT64 Reserved1 : 3;
    UINT64 SlotNumber : 13;
    UINT64 Reserved2 : 32;
} EFI_CXL_DEVICE_ID;

typedef struct {
    UINT64 FunctionNumber : 8;
    UINT64 DeviceNumber : 8;
    UINT64 BusNumber : 8;
    UINT64 SegmentNumber : 16;
    UINT64 Reserved : 24;
} EFI_CXL_DEVICE_AGENT_ADDRESS;

typedef union {
    EFI_CXL_DEVICE_AGENT_ADDRESS DeviceAddress; //Active when the agent is a CXL1.1 device in CxlAgentType.
    UINT64 PortRcrbBaseAddress; //Active when the agent is a CXL1.1 host downstream port in CxlAgentType.
} EFI_CXL_AGENT_ADDRESS;

typedef struct {
    UINT64 ValidBits;
    UINT64 CxlAgentType;
    EFI_CXL_AGENT_ADDRESS CxlAgentAddress;
    EFI_CXL_DEVICE_ID DeviceId;
    UINT64 DeviceSerial;
    EFI_PCIE_ERROR_DATA_CAPABILITY CapabilityStructure;
    UINT16 CxlDvsecLength;
    UINT16 CxlErrorLogLength;
    UINT32 Reserved;
} EFI_CXL_PROTOCOL_ERROR_DATA;

json_object* cper_section_cxl_protocol_to_ir(void* section, EFI_ERROR_SECTION_DESCRIPTOR* descriptor);
void ir_section_cxl_protocol_to_cper(json_object* section, FILE* out);

#endif