IXGBE_MFLCN
mflcn_reg = IXGBE_READ_REG(hw, IXGBE_MFLCN);
IXGBE_WRITE_REG(hw, IXGBE_MFLCN, mflcn_reg);
reg = IXGBE_READ_REG(hw, IXGBE_MFLCN);
IXGBE_WRITE_REG(hw, IXGBE_MFLCN, reg);
regs_buff[1128] = IXGBE_READ_REG(hw, IXGBE_MFLCN);
u32 mflcn = IXGBE_READ_REG(hw, IXGBE_MFLCN);