linux-kernel - Re: [PATCH net-next v4 2/9] net: usb: ax88179

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Date: Tue, 20 Feb 2024 12:39:24 +0000
From: Simon Horman <horms@...nel.org>
To: Andrew Lunn <andrew@...n.ch>
Cc: "David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>,
	Ariel Elior <aelior@...vell.com>,
	Manish Chopra <manishc@...vell.com>,
	Jesse Brandeburg <jesse.brandeburg@...el.com>,
	Tony Nguyen <anthony.l.nguyen@...el.com>, linux-usb@...r.kernel.org,
	netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
	intel-wired-lan@...ts.osuosl.org
Subject: Re: [PATCH net-next v4 2/9] net: usb: ax88179_178a: Use linkmode
 helpers for EEE

On Sun, Feb 18, 2024 at 11:06:59AM -0600, Andrew Lunn wrote:
> Make use of the existing linkmode helpers for converting PHY EEE
> register values into links modes, now that ethtool_keee uses link
> modes, rather than u32 values.
> 
> Signed-off-by: Andrew Lunn <andrew@...n.ch>
> ---
>  drivers/net/usb/ax88179_178a.c | 9 ++++-----
>  1 file changed, 4 insertions(+), 5 deletions(-)
> 
> diff --git a/drivers/net/usb/ax88179_178a.c b/drivers/net/usb/ax88179_178a.c
> index d6168eaa286f..d4bf9865d87b 100644
> --- a/drivers/net/usb/ax88179_178a.c
> +++ b/drivers/net/usb/ax88179_178a.c
> @@ -676,21 +676,21 @@ ax88179_ethtool_get_eee(struct usbnet *dev, struct ethtool_keee *data)
>  					    MDIO_MMD_PCS);
>  	if (val < 0)
>  		return val;
> -	data->supported_u32 = mmd_eee_cap_to_ethtool_sup_t(val);
> +	mii_eee_cap1_mod_linkmode_t(data->supported, val);
>  
>  	/* Get advertisement EEE */
>  	val = ax88179_phy_read_mmd_indirect(dev, MDIO_AN_EEE_ADV,
>  					    MDIO_MMD_AN);
>  	if (val < 0)
>  		return val;
> -	data->advertised_u32 = mmd_eee_adv_to_ethtool_adv_t(val);
> +	mii_eee_cap1_mod_linkmode_t(data->advertised, val);
>  
>  	/* Get LP advertisement EEE */
>  	val = ax88179_phy_read_mmd_indirect(dev, MDIO_AN_EEE_LPABLE,
>  					    MDIO_MMD_AN);
>  	if (val < 0)
>  		return val;
> -	data->lp_advertised_u32 = mmd_eee_adv_to_ethtool_adv_t(val);
> +	mii_eee_cap1_mod_linkmode_t(data->lp_advertised, val);
>  
>  	return 0;
>  }
> @@ -698,7 +698,7 @@ ax88179_ethtool_get_eee(struct usbnet *dev, struct ethtool_keee *data)
>  static int
>  ax88179_ethtool_set_eee(struct usbnet *dev, struct ethtool_keee *data)
>  {
> -	u16 tmp16 = ethtool_adv_to_mmd_eee_adv_t(data->advertised_u32);
> +	u16 tmp16 = linkmode_to_mii_eee_cap1_t(data->advertised);
>  
>  	return ax88179_phy_write_mmd_indirect(dev, MDIO_AN_EEE_ADV,
>  					      MDIO_MMD_AN, tmp16);
> @@ -1663,7 +1663,6 @@ static int ax88179_reset(struct usbnet *dev)
>  	ax88179_disable_eee(dev);
>  
>  	ax88179_ethtool_get_eee(dev, &eee_data);
> -	eee_data.advertised_u32 = 0;

Hi Andrew,

could you clarify why advertised no longer needs to be cleared?

>  	ax88179_ethtool_set_eee(dev, &eee_data);
>  
>  	/* Restart autoneg */
> 
> -- 
> 2.43.0
> 
>