IXGBE_KRM_PMD_FLX_MASK_ST20_SGMII_EN
flx_val |= IXGBE_KRM_PMD_FLX_MASK_ST20_SGMII_EN;
flx_val |= IXGBE_KRM_PMD_FLX_MASK_ST20_SGMII_EN;
reg_val &= ~IXGBE_KRM_PMD_FLX_MASK_ST20_SGMII_EN;
reg_val &= ~IXGBE_KRM_PMD_FLX_MASK_ST20_SGMII_EN;