QM_VDQCR_FQID_MASK
if (vdqcr & QM_VDQCR_FQID_MASK)
vdqcr = (vdqcr & ~QM_VDQCR_FQID_MASK) | fq->fqid;
#define QM_VDQCR_FQID(n) ((n) & QM_VDQCR_FQID_MASK)