s_pxe_cpb_initialize Struct Reference


Data Fields

PXE_UINT64 MemoryAddr
PXE_UINT32 MemoryLength
PXE_UINT32 LinkSpeed
PXE_UINT16 TxBufCnt
PXE_UINT16 TxBufSize
PXE_UINT16 RxBufCnt
PXE_UINT16 RxBufSize
PXE_UINT8 DuplexMode
PXE_UINT8 LoopBackMode

Field Documentation

The following configuration parameters are optional and must be zero to use the default values.

Desired link speed in Mbit/sec. Common ethernet values are 10, 100 and 1000. Setting a value of zero will auto-detect and/or use the default link speed (operation depends on UNDI/NIC functionality).

Address of first (lowest) byte of the memory buffer. This buffer must be in contiguous physical memory and cannot be swapped out. The UNDI will be using this for transmit and receive buffering.

MemoryLength must be greater than or equal to MemoryRequired returned by the Get Init Info command.

Suggested number and size of receive and transmit buffers to allocate. If MemoryAddr and MemoryLength are non-zero, this allocation comes out of the supplied memory buffer. If MemoryAddr and MemoryLength are zero, this allocation comes out of memory on the NIC.

If these fields are set to zero, the UNDI will allocate buffer counts and sizes as it sees fit.


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