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

Routine Description:

    This routine handles the completion event when the send completes with
    the underlying transport.  It must put the session hdr buffer back in
    the correct free list and free the active q entry and put it back on
    its 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).