Intel Extensible Firmware Interface - Page 418

Extensible Firmware Interface Specification
400 12/12/00 Version 1.02
// UNDI Transmit
//*******************************************************
// S/W UNDI only. Return after the packet has been transmitted.
// A transmit complete interrupt will still be generated and the
// transmit buffer will have to be recycled.
#define PXE_OPFLAGS_SWUNDI_TRANSMIT_OPMASK 0x0001
#define PXE_OPFLAGS_TRANSMIT_BLOCK 0x0001
#define PXE_OPFLAGS_TRANSMIT_DONT_BLOCK 0x0000
#define PXE_OPFLAGS_TRANSMIT_OPMASK 0x0002
#define PXE_OPFLAGS_TRANSMIT_FRAGMENTED 0x0002
#define PXE_OPFLAGS_TRANSMIT_WHOLE 0x0000
//*******************************************************
// UNDI Receive
//*******************************************************
// No OpFlags
G.3.4.4 PXE_STATFLAGS
typedef PXE_UINT16 PXE_STATFLAGS;
#define PXE_STATFLAGS_INITIALIZE 0x0000
//*******************************************************
// Common StatFlags that can be returned by all commands.
//*******************************************************
// The COMMAND_COMPLETE and COMMAND_FAILED status flags must be
// implemented by all UNDIs. COMMAND_QUEUED is only needed by
// UNDIs that support command queuing.
#define PXE_STATFLAGS_STATUS_MASK 0xC000
#define PXE_STATFLAGS_COMMAND_COMPLETE 0xC000
#define PXE_STATFLAGS_COMMAND_FAILED 0x8000