E1000_VLVF_POOLSEL_SHIFT
#define E1000_VLVF_POOLSEL_MASK (0xFF << E1000_VLVF_POOLSEL_SHIFT)
vlvf[i] |= 1U << (E1000_VLVF_POOLSEL_SHIFT + pool);
(1U << (E1000_VLVF_POOLSEL_SHIFT + pool));
(E1000_VLVF_POOLSEL_SHIFT + sc->pool);