Intel Extensible Firmware Interface Specification page 446

Extensible Firmware Interface Specification
G.4.6.3 Checking Command Execution Results
After command execution completes, either successfully or not, the
contains the result of the command execution.
StatCode
SUCCESS
INVALID_CDB
BUSY
QUEUE_FULL
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)
428
Reason
Command completed successfully. DB has been written.
One of the CDB fields was not set correctly.
UNDI is already processing commands. Try again later.
Command queue is full. Try again later.
The UNDI is not started.
12/12/00
field
CDB.StatCode
Version 1.02