netdev - Re: [PATCH net-next 1/7] net: phy: marvell10g: Use get

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Date:   Fri, 22 Feb 2019 19:42:29 +0100
From:   Heiner Kallweit <hkallweit1@...il.com>
To:     Maxime Chevallier <maxime.chevallier@...tlin.com>,
        davem@...emloft.net
Cc:     netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
        Andrew Lunn <andrew@...n.ch>,
        Florian Fainelli <f.fainelli@...il.com>,
        Russell King <linux@...linux.org.uk>,
        linux-arm-kernel@...ts.infradead.org,
        Antoine Tenart <antoine.tenart@...tlin.com>,
        thomas.petazzoni@...tlin.com, gregory.clement@...tlin.com,
        miquel.raynal@...tlin.com, nadavh@...vell.com, stefanc@...vell.com,
        mw@...ihalf.com
Subject: Re: [PATCH net-next 1/7] net: phy: marvell10g: Use get_features to
 get the PHY abilities

On 21.02.2019 10:51, Maxime Chevallier wrote:
> The Alaska family of 10G PHYs has more abilities than the ones listed in
> PHY_10GBIT_FULL_FEATURES, the exact list depending on the model.
> 
> Make use of the newly introduced .get_features call to build this list,
> using genphy_c45_pma_read_abilities to build the list of supported
> linkmodes, and adding autoneg ability based on what's reported by the AN
> MMD.
> 
> .config_init is still used to validate the interface_mode.
> 
> Signed-off-by: Maxime Chevallier <maxime.chevallier@...tlin.com>
> ---
>  drivers/net/phy/marvell10g.c | 10 +++++++---
>  1 file changed, 7 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/net/phy/marvell10g.c b/drivers/net/phy/marvell10g.c
> index 9ea27acf05ad..65ef469adf58 100644
> --- a/drivers/net/phy/marvell10g.c
> +++ b/drivers/net/phy/marvell10g.c
> @@ -233,8 +233,6 @@ static int mv3310_resume(struct phy_device *phydev)
>  
>  static int mv3310_config_init(struct phy_device *phydev)
>  {
> -	int ret, val;
> -
>  	/* Check that the PHY interface type is compatible */
>  	if (phydev->interface != PHY_INTERFACE_MODE_SGMII &&
>  	    phydev->interface != PHY_INTERFACE_MODE_XAUI &&
> @@ -242,6 +240,12 @@ static int mv3310_config_init(struct phy_device *phydev)
>  	    phydev->interface != PHY_INTERFACE_MODE_10GKR)
>  		return -ENODEV;
>  
> +	return 0;
> +}
> +
> +static int mv3310_get_features(struct phy_device *phydev)
> +{

After my just submitted patch to include the aneg capability checking in
genphy_c45_pma_read_abilities() function mv3310_get_features() isn't
needed any longer and can be replaced with the generic one.
But we can make this change afterwards, then you don't have to
rework your series.

Also I'm not sure whether there will be a 5.0-rc8 or whether beginning
of next week we'll see 5.0. In the latter case we're a little bit in a
hurry because the merge window will start very soon.

> +	int ret, val;
>  	if (phydev->c45_ids.devices_in_package & MDIO_DEVS_AN) {
>  		val = phy_read_mmd(phydev, MDIO_MMD_AN, MDIO_STAT1);
>  		if (val < 0)
> @@ -429,7 +433,7 @@ static struct phy_driver mv3310_drivers[] = {
>  		.phy_id		= 0x002b09aa,
>  		.phy_id_mask	= MARVELL_PHY_ID_MASK,
>  		.name		= "mv88x3310",
> -		.features	= PHY_10GBIT_FEATURES,
> +		.get_features	= mv3310_get_features,
>  		.soft_reset	= gen10g_no_soft_reset,
>  		.config_init	= mv3310_config_init,
>  		.probe		= mv3310_probe,
>