CSB_WRITE
CSB_WRITE(csb_atok, head, kring->rhead);
CSB_WRITE(csb_atok, cur, kring->rcur);
CSB_WRITE(csb_atok, appl_need_kick, 1);
CSB_WRITE(csb_atok, sync_flags, 1);
CSB_WRITE(csb_ktoa, hwcur, kring->nr_hwcur);
CSB_WRITE(csb_ktoa, hwtail, kring->nr_hwtail);
CSB_WRITE(csb_ktoa, kern_need_kick, 1);
CSB_WRITE(csb_ktoa, kern_need_kick, val);
CSB_WRITE(ptr, hwcur, hwcur);
CSB_WRITE(ptr, hwtail, hwtail);