CompletionRcvDgram(
  IN  PDEVICE_OBJECT DeviceObject,
  IN  PIRP Irp,
  IN  PVOID Context
  );

Routine Description:

    This routine completes the Irp by removing the Rcv Element off the queue
    and putting it back on the free list.

Arguments:

    DeviceObject - unused.

    Irp - Supplies Irp that the transport has finished processing.

    Context - Supplies the pConnectEle - the connection data structure

Return Value:

    The final status from the operation (success or an exception).