MIMO_PLCP_AMPDU
#define BRCMS_SET_MIMO_PLCP_AMPDU(plcp) (plcp[3] |= MIMO_PLCP_AMPDU)
#define BRCMS_CLR_MIMO_PLCP_AMPDU(plcp) (plcp[3] &= ~MIMO_PLCP_AMPDU)
#define BRCMS_IS_MIMO_PLCP_AMPDU(plcp) (plcp[3] & MIMO_PLCP_AMPDU)