IXGBE_HICR
hicr = IXGBE_READ_REG(hw, IXGBE_HICR);
IXGBE_WRITE_REG(hw, IXGBE_HICR, hicr | IXGBE_HICR_C);
!(IXGBE_READ_REG(hw, IXGBE_HICR) & IXGBE_HICR_SV)) {