s_pxe_db_get_init_info Struct Reference

Data Fields
PXE_UINT32	MemoryRequired
PXE_UINT32	FrameDataLen
PXE_UINT32	LinkSpeeds [4]
PXE_UINT32	NvCount
PXE_UINT16	NvWidth
PXE_UINT16	MediaHeaderLen
PXE_UINT16	HWaddrLen
PXE_UINT16	MCastFilterCnt
PXE_UINT16	TxBufCnt
PXE_UINT16	TxBufSize
PXE_UINT16	RxBufCnt
PXE_UINT16	RxBufSize
PXE_UINT8	IFtype
PXE_UINT8	SupportedDuplexModes
PXE_UINT8	SupportedLoopBackModes

Field Documentation

PXE_UINT32 s_pxe_db_get_init_info::FrameDataLen

Maximum frame data length for Tx/Rx excluding the media header.

PXE_UINT16 s_pxe_db_get_init_info::HWaddrLen

Number of bytes in the NIC hardware (MAC) address.

PXE_UINT8 s_pxe_db_get_init_info::IFtype

Hardware interface types defined in the Assigned Numbers RFC and used in DHCP and ARP packets. See the PXE_IFTYPE typedef and PXE_IFTYPE_xxx macros.

PXE_UINT32 s_pxe_db_get_init_info::LinkSpeeds[4]

Supported link speeds are in units of mega bits. Common ethernet values are 10, 100 and 1000. Unused LinkSpeeds[] entries are zero filled.

PXE_UINT16 s_pxe_db_get_init_info::MCastFilterCnt

Maximum number of multicast MAC addresses in the multicast MAC address filter list.

PXE_UINT16 s_pxe_db_get_init_info::MediaHeaderLen

Media header length. This is the typical media header length for this UNDI. This information is needed when allocating receive and transmit buffers.

PXE_UINT32 s_pxe_db_get_init_info::MemoryRequired

Minimum length of locked memory buffer that must be given to the Initialize command. Giving UNDI more memory will generally give better performance.

If MemoryRequired is zero, the UNDI does not need and will not use system memory to receive and transmit packets.

PXE_UINT32 s_pxe_db_get_init_info::NvCount

Number of non-volatile storage items.

PXE_UINT16 s_pxe_db_get_init_info::NvWidth

Width of non-volatile storage item in bytes. 0, 1, 2 or 4

PXE_UINT16 s_pxe_db_get_init_info::RxBufCnt

PXE_UINT16 s_pxe_db_get_init_info::RxBufSize

PXE_UINT8 s_pxe_db_get_init_info::SupportedDuplexModes

Supported duplex. See PXE_DUPLEX_xxxxx #defines below.

PXE_UINT8 s_pxe_db_get_init_info::SupportedLoopBackModes

Supported loopback options. See PXE_LOOPBACK_xxxxx #defines below.

PXE_UINT16 s_pxe_db_get_init_info::TxBufCnt

Default number and size of transmit and receive buffers that will be allocated by the UNDI. If MemoryRequired is non-zero, this allocation will come out of the memory buffer given to the Initialize command. If MemoryRequired is zero, this allocation will come out of memory on the NIC.

PXE_UINT16 s_pxe_db_get_init_info::TxBufSize