CF_LS4_SHIFT
cpu_to_le16(CF_LS4_RESPONDER << CF_LS4_SHIFT);
cpu_to_le16(CF_LS4_ORIGINATOR << CF_LS4_SHIFT);
a->control_flags = CF_LS4_RESPONDER << CF_LS4_SHIFT;
a->control_flags = CF_LS4_RESPONDER_TERM << CF_LS4_SHIFT;