array_rd32
mta = array_rd32(E1000_MTA, hash_reg);
if (array_rd32(E1000_MTA, i) != hw->mac.mta_shadow[i]) {
msg[i] = array_rd32(E1000_VMBMEM(vf_number), i);
u32 ivar = array_rd32(E1000_IVAR0, index);
u32 ivar = array_rd32(IGC_IVAR0, index);