netdev - Re: [PATCH resend] Renesas Ethernet AVB driver

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Date:	Thu, 02 Apr 2015 14:56:39 +0100
From:	Ben Hutchings <ben.hutchings@...ethink.co.uk>
To:	Sergei Shtylyov <sergei.shtylyov@...entembedded.com>
Cc:	robh+dt@...nel.org, pawel.moll@....com, mark.rutland@....com,
	ijc+devicetree@...lion.org.uk, devicetree@...r.kernel.org,
	galak@...eaurora.org, netdev@...r.kernel.org,
	linux-sh@...r.kernel.org
Subject: Re: [PATCH resend] Renesas Ethernet AVB driver

This driver looks somewhat similar to sh-eth, but lacks some of the
recent bug fixes made to that.  At least commit 283e38db65e7 ("sh_eth:
Fix serialisation of interrupt disable with interrupt & NAPI handler")
appears to be applicable, but there are probably others.

One feature request:

On Sat, 2015-03-28 at 02:13 +0300, Sergei Shtylyov wrote:
[...]
> +/* ioctl to device function */
> +static int ravb_do_ioctl(struct net_device *ndev, struct ifreq *req, int cmd)
> +{
> +	struct ravb_private *priv = netdev_priv(ndev);
> +	struct phy_device *phydev = priv->phydev;
> +
> +	if (!netif_running(ndev))
> +		return -EINVAL;
> +
> +	if (!phydev)
> +		return -ENODEV;
> +
> +	if (cmd == SIOCSHWTSTAMP)
> +		return ravb_hwtstamp_ioctl(ndev, req, cmd);
[...]

The driver should also handle SIOCGHWTSTAMP.

Ben.


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