// netadapter.h

typedef enum _NET_ADAPTER_PAUSE_FUNCTION_TYPE {
  NetAdapterPauseFunctionTypeUnsupported = 0,
  NetAdapterPauseFunctionTypeSendOnly = 1,
  NetAdapterPauseFunctionTypeReceiveOnly = 2,
  NetAdapterPauseFunctionTypeSendAndReceive = 3,
  NetAdapterPauseFunctionTypeUnknown = 4
} NET_ADAPTER_PAUSE_FUNCTION_TYPE;
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Windows Driver Kit DDI reference (ne-netadapter-_net_adapter_pause_function_type)

NET_ADAPTER_PAUSE_FUNCTION_TYPE enumeration

Description

The NET_ADAPTER_PAUSE_FUNCTION_TYPE enumeration specifies what IEEE 802.3 pause frames a net adapter supports.

Constants

`NetAdapterPauseFunctionTypeUnsupported:0`

Indicates that the adapter or link partner does not support pause frames.

`NetAdapterPauseFunctionTypeSendOnly:1`

Indicates that the adapter and link partner only support sending pause frames from the adapter to the link partner.

`NetAdapterPauseFunctionTypeReceiveOnly:2`

Indicates that the adapter and link partner only support sending pause frames from the link partner to the adapter.

`NetAdapterPauseFunctionTypeSendAndReceive:3`

Indicates that the adapter and link partner support sending and receiving pause frames in both transint and receive directions.

`NetAdapterPauseFunctionTypeUnknown:4`

Indicates that pause frame negotiation is in progress. The pause frame support that the link partner provides is unknown.

Remarks

This enumeration is a member of the NET_ADAPTER_LINK_STATE structure.

NET_ADAPTER_PAUSE_FUNCTION_TYPE - NtDoc