Intel Extensible Firmware Interface Specification page 477

// Number of packet fragment descriptors.
PXE_UINT16 FragCnt;
// Reserved, must be set to zero.
PXE_UINT16 reserved;
// Array of packet fragment descriptors.
// media header is the first byte of the first fragment.
struct {
// Address of this packet fragment.
PXE_UINT64 FragAddr;
// Length of this packet fragment.
PXE_UINT32 FragLen;
// Reserved, must be set to zero.
PXE_UINT32 reserved;
} FragDesc[n];
} PXE_CPB_FILL_HEADER_FRAGMENTED;
#pragma pack()
G.4.17.2 Waiting for the Command to Execute
Monitor the upper two bits (14 & 15) in the
report
PXE_STATFLAGS_COMMAND_COMPLETE
the command has not been executed by the UNDI.
StatFlags
COMMAND_COMPLETE
COMMAND_FAILED
COMMAND_QUEUED
INITIALIZE
Version 1.02
CDB.StatFlags
or PXE_STATFLAGS_COMMAND_FAILED,
Reason
Command completed successfully. Frame is ready to transmit.
Command failed. StatCode field contains error code.
Command has been queued.
Command has been not executed or queued.
12/12/00
32/64-bit UNDI Specification
The first byte of the
field. Until these bits change to
459