ATACH_NCQ
SET(chp->ch_flags, ATACH_NCQ);
CLR(chp->ch_flags, ATACH_NCQ);
KASSERT((chp->ch_flags & ATACH_NCQ) == 0);
if ((chp->ch_flags & ATACH_NCQ) == 0) {
if ((chp->ch_flags & ATACH_NCQ) == 0) {
KASSERT((chp->ch_flags & ATACH_NCQ) == 0);
KASSERT((chp->ch_flags & ATACH_NCQ) == 0);
KASSERT((chp->ch_flags & ATACH_NCQ) == 0);
(chp->ch_flags & ATACH_NCQ) == 0 &&