Re: [PATCH net-next v4 11/12] microchip: lan865x: add driver support for Microchip's LAN865X MAC-PHY

Andrew Lunn
2024-04-24T00:27:43Z

> +/* OPEN Alliance Configuration Register #0 */
> +#define OA_TC6_REG_CONFIG0 0x0004
> +#define CONFIG0_ZARFE_ENABLE BIT(12)

If this is a standard register, you should put these defined where
other drivers can use them.

> +static int lan865x_set_mac_address(struct net_device *netdev, void *addr)
> +{
> + struct lan865x_priv *priv = netdev_priv(netdev);
> + struct sockaddr *address = addr;
> + int ret;
> +
> + ret = eth_prepare_mac_addr_change(netdev, addr);
> + if (ret < 0)
> + return ret;
> +
> + if (ether_addr_equal(address->sa_data, netdev->dev_addr))
> + return 0;
> +
> + ret = lan865x_set_hw_macaddr(priv, address->sa_data);
> + if (ret)
> + return ret;
> +
> + eth_hw_addr_set(netdev, address->sa_data);

It seems more normal to call eth_commit_mac_addr_change(), which
better pairs with eth_prepare_mac_addr_change().

> +static int lan865x_set_zarfe(struct lan865x_priv *priv)
> +{
> + u32 regval;
> + int ret;
> +
> + ret = oa_tc6_read_register(priv->tc6, OA_TC6_REG_CONFIG0, &regval);
> + if (ret)
> + return ret;
> +
> + /* Set Zero-Align Receive Frame Enable */
> + regval |= CONFIG0_ZARFE_ENABLE;
> +
> + return oa_tc6_write_register(priv->tc6, OA_TC6_REG_CONFIG0, regval);
> +}

There does not appear to be anything specific to your device here. So
please make this a helper in the shared code, so any driver can use
it.

Andrew