1*b98ec66cSLawrence Tang /** 2*b98ec66cSLawrence Tang * Describes functions for converting CXL protocol error CPER sections from binary and JSON format 3*b98ec66cSLawrence Tang * into an intermediate format. 4*b98ec66cSLawrence Tang * 5*b98ec66cSLawrence Tang * Author: Lawrence.Tang@arm.com 6*b98ec66cSLawrence Tang **/ 7*b98ec66cSLawrence Tang #include <stdio.h> 8*b98ec66cSLawrence Tang #include "json.h" 9*b98ec66cSLawrence Tang #include "../edk/Cper.h" 10*b98ec66cSLawrence Tang #include "../cper-utils.h" 11*b98ec66cSLawrence Tang #include "cper-section-cxl-protocol.h" 12*b98ec66cSLawrence Tang 13*b98ec66cSLawrence Tang //Converts a single CXL protocol error CPER section into JSON IR. 14*b98ec66cSLawrence Tang json_object* cper_section_cxl_protocol_to_ir(void* section, EFI_ERROR_SECTION_DESCRIPTOR* descriptor) 15*b98ec66cSLawrence Tang { 16*b98ec66cSLawrence Tang EFI_CXL_PROTOCOL_ERROR_DATA* cxl_protocol_error = (EFI_CXL_PROTOCOL_ERROR_DATA*)section; 17*b98ec66cSLawrence Tang json_object* section_ir = json_object_new_object(); 18*b98ec66cSLawrence Tang 19*b98ec66cSLawrence Tang //Validation bits. 20*b98ec66cSLawrence Tang json_object* validation = bitfield_to_ir(cxl_protocol_error->ValidBits, 7, CXL_PROTOCOL_ERROR_VALID_BITFIELD_NAMES); 21*b98ec66cSLawrence Tang json_object_object_add(section_ir, "validationBits", validation); 22*b98ec66cSLawrence Tang 23*b98ec66cSLawrence Tang //Type of detecting agent. 24*b98ec66cSLawrence Tang json_object* agent_type = integer_to_readable_pair(cxl_protocol_error->CxlAgentType, 2, 25*b98ec66cSLawrence Tang CXL_PROTOCOL_ERROR_AGENT_TYPES_KEYS, 26*b98ec66cSLawrence Tang CXL_PROTOCOL_ERROR_AGENT_TYPES_VALUES, 27*b98ec66cSLawrence Tang "Unknown (Reserved)"); 28*b98ec66cSLawrence Tang json_object_object_add(section_ir, "agentType", agent_type); 29*b98ec66cSLawrence Tang 30*b98ec66cSLawrence Tang //CXL agent address, depending on the agent type. 31*b98ec66cSLawrence Tang if (cxl_protocol_error->CxlAgentType == CXL_PROTOCOL_ERROR_DEVICE_AGENT) 32*b98ec66cSLawrence Tang { 33*b98ec66cSLawrence Tang //Address is a CXL1.1 device agent. 34*b98ec66cSLawrence Tang json_object* agent_address = json_object_new_object(); 35*b98ec66cSLawrence Tang json_object_object_add(agent_address, "functionNumber", 36*b98ec66cSLawrence Tang json_object_new_uint64(cxl_protocol_error->CxlAgentAddress.DeviceAddress.FunctionNumber)); 37*b98ec66cSLawrence Tang json_object_object_add(agent_address, "deviceNumber", 38*b98ec66cSLawrence Tang json_object_new_uint64(cxl_protocol_error->CxlAgentAddress.DeviceAddress.DeviceNumber)); 39*b98ec66cSLawrence Tang json_object_object_add(agent_address, "busNumber", 40*b98ec66cSLawrence Tang json_object_new_uint64(cxl_protocol_error->CxlAgentAddress.DeviceAddress.BusNumber)); 41*b98ec66cSLawrence Tang json_object_object_add(agent_address, "segmentNumber", 42*b98ec66cSLawrence Tang json_object_new_uint64(cxl_protocol_error->CxlAgentAddress.DeviceAddress.SegmentNumber)); 43*b98ec66cSLawrence Tang 44*b98ec66cSLawrence Tang json_object_object_add(section_ir, "cxlAgentAddress", agent_address); 45*b98ec66cSLawrence Tang } 46*b98ec66cSLawrence Tang else if (cxl_protocol_error->CxlAgentType == CXL_PROTOCOL_ERROR_HOST_DOWNSTREAM_PORT_AGENT) 47*b98ec66cSLawrence Tang { 48*b98ec66cSLawrence Tang //Address is a CXL port RCRB base address. 49*b98ec66cSLawrence Tang json_object_object_add(section_ir, "cxlAgentAddress", 50*b98ec66cSLawrence Tang json_object_new_uint64(cxl_protocol_error->CxlAgentAddress.PortRcrbBaseAddress)); 51*b98ec66cSLawrence Tang } 52*b98ec66cSLawrence Tang 53*b98ec66cSLawrence Tang //Device ID. 54*b98ec66cSLawrence Tang json_object* device_id = json_object_new_object(); 55*b98ec66cSLawrence Tang json_object_object_add(device_id, "vendorID", 56*b98ec66cSLawrence Tang json_object_new_uint64(cxl_protocol_error->DeviceId.VendorId)); 57*b98ec66cSLawrence Tang json_object_object_add(device_id, "deviceID", 58*b98ec66cSLawrence Tang json_object_new_uint64(cxl_protocol_error->DeviceId.DeviceId)); 59*b98ec66cSLawrence Tang json_object_object_add(device_id, "subsystemVendorID", 60*b98ec66cSLawrence Tang json_object_new_uint64(cxl_protocol_error->DeviceId.SubsystemVendorId)); 61*b98ec66cSLawrence Tang json_object_object_add(device_id, "subsystemDeviceID", 62*b98ec66cSLawrence Tang json_object_new_uint64(cxl_protocol_error->DeviceId.SubsystemDeviceId)); 63*b98ec66cSLawrence Tang json_object_object_add(device_id, "classCode", 64*b98ec66cSLawrence Tang json_object_new_uint64(cxl_protocol_error->DeviceId.ClassCode)); 65*b98ec66cSLawrence Tang json_object_object_add(device_id, "slotNumber", 66*b98ec66cSLawrence Tang json_object_new_uint64(cxl_protocol_error->DeviceId.SlotNumber)); 67*b98ec66cSLawrence Tang json_object_object_add(section_ir, "deviceID", device_id); 68*b98ec66cSLawrence Tang 69*b98ec66cSLawrence Tang //Device serial & capability structure (if CXL 1.1 device). 70*b98ec66cSLawrence Tang if (cxl_protocol_error->CxlAgentType == CXL_PROTOCOL_ERROR_DEVICE_AGENT) 71*b98ec66cSLawrence Tang { 72*b98ec66cSLawrence Tang json_object_object_add(section_ir, "deviceSerial", json_object_new_uint64(cxl_protocol_error->DeviceSerial)); 73*b98ec66cSLawrence Tang //todo: add generic parser for PCI capability structure (see Cper.h) 74*b98ec66cSLawrence Tang } 75*b98ec66cSLawrence Tang 76*b98ec66cSLawrence Tang //CXL DVSEC & error log length. 77*b98ec66cSLawrence Tang json_object_object_add(section_ir, "dvsecLength", json_object_new_int(cxl_protocol_error->CxlDvsecLength)); 78*b98ec66cSLawrence Tang json_object_object_add(section_ir, "errorLogLength", json_object_new_int(cxl_protocol_error->CxlErrorLogLength)); 79*b98ec66cSLawrence Tang 80*b98ec66cSLawrence Tang //CXL DVSEC 81*b98ec66cSLawrence Tang //todo: for CXL 1.1 devices, implement this as the "CXL DVSEC For Flex Bus Device" structure as in CXL 1.1 spec. 82*b98ec66cSLawrence Tang //todo: for CXL 1.1 host downstream port, implement this as "CXL DVSEC For Flex Bus Port" structure as in CXL 1.1 spec. 83*b98ec66cSLawrence Tang 84*b98ec66cSLawrence Tang //CXL Error Log 85*b98ec66cSLawrence Tang //todo: implement this as the "CXL RAS Capability Structure" as in CXL 1.1 spec. 86*b98ec66cSLawrence Tang 87*b98ec66cSLawrence Tang return section_ir; 88*b98ec66cSLawrence Tang }