[02/11] net: axienet: Add ioctl support

Allow user to access the MDIO from userspace.

Signed-off-by: Michal Simek <monstr@monstr.eu>
CC: Anirudha Sarangi <anirudh@xilinx.com>
CC: John Linn <John.Linn@xilinx.com>
CC: Grant Likely <grant.likely@secretlab.ca>
CC: Rob Herring <rob.herring@calxeda.com>
CC: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/xilinx/xilinx_axienet_main.c |   15 +++++++++++++++
 1 files changed, 15 insertions(+), 0 deletions(-)

On Thu, 2012-10-04 at 20:14 +0200, Michal Simek wrote:
> Allow user to access the MDIO from userspace.
> 
> Signed-off-by: Michal Simek <monstr@monstr.eu>
> CC: Anirudha Sarangi <anirudh@xilinx.com>
> CC: John Linn <John.Linn@xilinx.com>
> CC: Grant Likely <grant.likely@secretlab.ca>
> CC: Rob Herring <rob.herring@calxeda.com>
> CC: David S. Miller <davem@davemloft.net>
> ---
>  drivers/net/ethernet/xilinx/xilinx_axienet_main.c |   15 +++++++++++++++
>  1 files changed, 15 insertions(+), 0 deletions(-)
> 
> diff --git a/drivers/net/ethernet/xilinx/xilinx_axienet_main.c b/drivers/net/ethernet/xilinx/xilinx_axienet_main.c
> index 50167ab..a5b41cd 100644
> --- a/drivers/net/ethernet/xilinx/xilinx_axienet_main.c
> +++ b/drivers/net/ethernet/xilinx/xilinx_axienet_main.c
> @@ -1053,6 +1053,20 @@ static void axienet_poll_controller(struct net_device *ndev)
>  }
>  #endif
>  
> +/* Ioctl MII Interface */
> +static int axienet_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
> +{
> +	struct axienet_local *priv = netdev_priv(dev);
> +
> +	if (!netif_running(dev))
> +		return -EINVAL;

Not sure this is the appropriate error code.

> +	if (!priv->phy_dev)
> +		return -ENODEV;

Error code should be EOPNOTSUPP - the device is present but just doesn't
support MDIO.

Ben.

> +	return phy_mii_ioctl(priv->phy_dev, rq, cmd);
> +}
> +
>  static const struct net_device_ops axienet_netdev_ops = {
>  	.ndo_open = axienet_open,
>  	.ndo_stop = axienet_stop,
> @@ -1061,6 +1075,7 @@ static const struct net_device_ops axienet_netdev_ops = {
>  	.ndo_set_mac_address = netdev_set_mac_address,
>  	.ndo_validate_addr = eth_validate_addr,
>  	.ndo_set_rx_mode = axienet_set_multicast_list,
> +	.ndo_do_ioctl = axienet_ioctl,
>  #ifdef CONFIG_NET_POLL_CONTROLLER
>  	.ndo_poll_controller = axienet_poll_controller,
>  #endif

On 10/04/2012 09:17 PM, Ben Hutchings wrote:
> On Thu, 2012-10-04 at 20:14 +0200, Michal Simek wrote:
>> Allow user to access the MDIO from userspace.
>>
>> Signed-off-by: Michal Simek <monstr@monstr.eu>
>> CC: Anirudha Sarangi <anirudh@xilinx.com>
>> CC: John Linn <John.Linn@xilinx.com>
>> CC: Grant Likely <grant.likely@secretlab.ca>
>> CC: Rob Herring <rob.herring@calxeda.com>
>> CC: David S. Miller <davem@davemloft.net>
>> ---
>>   drivers/net/ethernet/xilinx/xilinx_axienet_main.c |   15 +++++++++++++++
>>   1 files changed, 15 insertions(+), 0 deletions(-)
>>
>> diff --git a/drivers/net/ethernet/xilinx/xilinx_axienet_main.c b/drivers/net/ethernet/xilinx/xilinx_axienet_main.c
>> index 50167ab..a5b41cd 100644
>> --- a/drivers/net/ethernet/xilinx/xilinx_axienet_main.c
>> +++ b/drivers/net/ethernet/xilinx/xilinx_axienet_main.c
>> @@ -1053,6 +1053,20 @@ static void axienet_poll_controller(struct net_device *ndev)
>>   }
>>   #endif
>>
>> +/* Ioctl MII Interface */
>> +static int axienet_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
>> +{
>> +	struct axienet_local *priv = netdev_priv(dev);
>> +
>> +	if (!netif_running(dev))
>> +		return -EINVAL;
>
> Not sure this is the appropriate error code.
>
>> +	if (!priv->phy_dev)
>> +		return -ENODEV;
>
> Error code should be EOPNOTSUPP - the device is present but just doesn't
> support MDIO.

ok. Thanks will fix it.

Thanks,
Michal