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NDIS_POLL_TRANSMIT_DATA structure (poll.h)

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Miniport drivers use the NDIS_POLL_TRANSMIT_DATA structure to perform send completions when using a Poll object.

Syntax

typedef struct _NDIS_POLL_TRANSMIT_DATA {
  ULONG           MaxNblsToComplete;
  ULONG           Reserved1[3];
  NET_BUFFER_LIST *CompletedNblChain;
  ULONG           NumberOfCompletedNbls;
  ULONG           NumberOfRemainingNbls;
  ULONG           SendCompleteFlags;
  ULONG           Reserved2;
  void            *Reserved3[4];
} NDIS_POLL_TRANSMIT_DATA;

Members

MaxNblsToComplete

The maximum number of NET_BUFFER_LIST structures (NBLs) that a miniport driver should include in a transmit completion. If this value is NDIS_ANY_NUMBER_OF_NBLS, the driver may complete an unlimited number of transmit NBLs.

Reserved1[3]

Reserved for future use, must be zero.

CompletedNblChain

A pointer that the miniport driver assigns to an NBL chain with the completed transmit packets.

NumberOfCompletedNbls

The number of NBLs that the driver placed in the CompletedNblChain. The driver can set this value to NDIS_ANY_NUMBER_OF_NBLS if it wants NDIS to count the NBLs.

NumberOfRemainingNbls

Specifies the number of NBLs that remain to be completed. A value of zero indicates that there are no more NBLs to complete. A value of NDIS_ANY_NUMBER_OF_NBLS indicates that there is some unknown (but non-zero) number of NBLs remaining. The driver should only fill this field with a precise number if it is cheap to calculate.

SendCompleteFlags

A combination of zero or more of the following flags:

NDIS_SEND_COMPLETE_FLAGS_SINGLE_QUEUE

NDIS_SEND_COMPLETE_FLAGS_SWITCH_SINGLE_SOURCE

Reserved2

Reserved for future use, must be zero.

Reserved3[4]

Reserved for future use, must be zero.

Remarks

An instance the NDIS_POLL_TRANSMIT_DATA structure is contained in the NDIS_POLL_DATA structure that NDIS passes to the miniport driver as a parameter to the NdisPoll callback.

Requirements

Requirement Value
Minimum supported client Windows 11
Minimum supported server Windows Server 2022
Header poll.h (include ndis.h)

See also

NdisPoll

NDIS_POLL_DATA

NDIS_POLL_RECEIVE_DATA