netdev - RE: [PATCH] dpaa_eth: Add dpaa_change

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Message-ID: <VI1PR04MB5567EBAB7DBF3A5E09388319ECAA0@VI1PR04MB5567.eurprd04.prod.outlook.com>
Date:   Fri, 7 Dec 2018 08:36:48 +0000
From:   Madalin-cristian Bucur <madalin.bucur@....com>
To:     "jocke@...inera.com" <joakim.tjernlund@...inera.com>,
        "netdev @ vger . kernel . org" <netdev@...r.kernel.org>
CC:     "jocke@...inera.com" <joakim.tjernlund@...inera.com>
Subject: RE: [PATCH] dpaa_eth: Add dpaa_change_carrier()

> -----Original Message-----
> From: Joakim Tjernlund <joakim.tjernlund@...inera.com>
> Sent: Thursday, December 6, 2018 5:32 PM
> To: netdev @ vger . kernel . org <netdev@...r.kernel.org>; Madalin-
> cristian Bucur <madalin.bucur@....com>
> Cc: jocke@...inera.com <joakim.tjernlund@...inera.com>
> Subject: [PATCH] dpaa_eth: Add dpaa_change_carrier()
> 
> This allows to control carrier from /sys/class/net/ethX/carrier

Hi,

can you please explain why it's needed?

Thanks,
Madalin

> Signed-off-by: Joakim Tjernlund <joakim.tjernlund@...inera.com>
> ---
>  drivers/net/ethernet/freescale/dpaa/dpaa_eth.c | 11 +++++++++++
>  1 file changed, 11 insertions(+)
> 
> diff --git a/drivers/net/ethernet/freescale/dpaa/dpaa_eth.c
> b/drivers/net/ethernet/freescale/dpaa/dpaa_eth.c
> index a202c50d6fc7..0e93dfa6df0a 100644
> --- a/drivers/net/ethernet/freescale/dpaa/dpaa_eth.c
> +++ b/drivers/net/ethernet/freescale/dpaa/dpaa_eth.c
> @@ -2502,12 +2502,23 @@ static int dpaa_ioctl(struct net_device *net_dev,
> struct ifreq *rq, int cmd)
>  	return phy_mii_ioctl(net_dev->phydev, rq, cmd);
>  }
> 
> +static int dpaa_change_carrier(struct net_device *dev, bool new_carrier)
> +{
> +	struct phy_device *phydev = dev->phydev;
> +
> +	if (phydev && phydev->phy_link_change)
> +		phydev->phy_link_change(phydev, new_carrier, 1);
> +
> +	return 0;
> +}
> +
>  static const struct net_device_ops dpaa_ops = {
>  	.ndo_open = dpaa_open,
>  	.ndo_start_xmit = dpaa_start_xmit,
>  	.ndo_stop = dpaa_eth_stop,
>  	.ndo_tx_timeout = dpaa_tx_timeout,
>  	.ndo_get_stats64 = dpaa_get_stats64,
> +	.ndo_change_carrier = dpaa_change_carrier,
>  	.ndo_set_mac_address = dpaa_set_mac_address,
>  	.ndo_validate_addr = eth_validate_addr,
>  	.ndo_set_rx_mode = dpaa_set_rx_mode,
> --
> 2.18.1