SXGBE_DMA_CHA_RXCTL_REG
rx_ctl_reg = readl(ioaddr + SXGBE_DMA_CHA_RXCTL_REG(cnum));
ioaddr + SXGBE_DMA_CHA_RXCTL_REG(cnum));
rx_ctl_reg = readl(ioaddr + SXGBE_DMA_CHA_RXCTL_REG(cnum));
writel(rx_ctl_reg, ioaddr + SXGBE_DMA_CHA_RXCTL_REG(cnum));
reg_val = readl(ioaddr + SXGBE_DMA_CHA_RXCTL_REG(cha_num));
writel(reg_val, ioaddr + SXGBE_DMA_CHA_RXCTL_REG(cha_num));