SXGBE_CORE_RSS_CTL_REG
reg_val |= readl(priv->ioaddr + SXGBE_CORE_RSS_CTL_REG);
writel(reg_val, priv->ioaddr + SXGBE_CORE_RSS_CTL_REG);
readl(priv->ioaddr + SXGBE_CORE_RSS_CTL_REG);