netdev - Re: [PATCH net-next] drivers: net: xgene: Check all RGMII phy mode variants

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Date:   Thu, 18 May 2017 15:02:20 +0200
From:   Andrew Lunn <andrew@...n.ch>
To:     Quan Nguyen <qnguyen@....com>
Cc:     Iyappan Subramanian <isubramanian@....com>,
        "David S. Miller" <davem@...emloft.net>, netdev@...r.kernel.org,
        Florian Fainelli <f.fainelli@...il.com>,
        linux-arm-kernel@...ts.infradead.org, patches <patches@....com>
Subject: Re: [PATCH net-next] drivers: net: xgene: Check all RGMII phy mode
 variants

> Hi Andrew,
> 
> Our purpose is to handle our internal pdata->phy_mode, so
> phy_interface_is_rgmii(phydev) seems not to fit.
> Instead, we're working on the below:
> 
> +bool is_xgene_enet_phy_mode_rgmii(struct net_device *ndev)
> +{
> +       struct xgene_enet_pdata *pdata = netdev_priv(ndev);
> +
> +       return pdata->phy_mode >= PHY_INTERFACE_MODE_RGMII &&
> +              pdata->phy_mode <= PHY_INTERFACE_MODE_RGMII_TXID;
> +}
> +

This is very generic, can could be used by other drivers. I prefer
what Florian suggested, have a generic helper which takes phy_mode as
a parameters. And then modify phy_interface_is_rgmii() to use this
helper.

	Andrew