SELF_ID_PHY_ID_MASK
return (quadlet & SELF_ID_PHY_ID_MASK) >> SELF_ID_PHY_ID_SHIFT;
*quadlet &= ~SELF_ID_PHY_ID_MASK;
*quadlet |= (phy_id << SELF_ID_PHY_ID_SHIFT) & SELF_ID_PHY_ID_MASK;
((((const u32 *)quads)[0] & SELF_ID_PHY_ID_MASK) >> SELF_ID_PHY_ID_SHIFT)