Intel Extensible Firmware Interface, Спецификация

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Extensible Firmware Interface Specification
428 12/12/00 Version 1.02
G.4.6.3 Checking Command Execution Results
After command execution completes, either successfully or not, the
CDB.StatCode
field
contains the result of the command execution.
StatCode Reason
SUCCESS Command completed successfully. DB has been written.
INVALID_CDB One of the CDB fields was not set correctly.
BUSY UNDI is already processing commands. Try again later.
QUEUE_FULL Command queue is full. Try again later.
NOT_STARTED The UNDI is not started.
DB
#pragma pack(1)
typedef struct s_pxe_pci_config_info {
// This is the flag field for the PXE_DB_GET_CONFIG_INFO union.
// For PCI bus devices, this field is set to PXE_BUSTYPE_PCI.
PXE_UINT32 BusType;
// This identifies the PCI network device that this UNDI
// interface is bound to.
PXE_UINT16 Bus;
PXE_UINT8 Device;
PXE_UINT8 Function;
// This is a copy of the PCI configuration space for this
// network device.
union {
PXE_UINT8 Byte[256];
PXE_UINT16 Word[128];
PXE_UINT32 Dword[64];
} Config;
} PXE_PCI_CONFIG_INFO;
#pragma pack()
#pragma pack(1)