netdev - Re: [PATCH net-next v3 6/9] net: phy: microchip_rds_ptp: add HW timestamp configuration reporting

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Message-ID: <20251119154604.564ae00d@kmaincent-XPS-13-7390>
Date: Wed, 19 Nov 2025 15:46:04 +0100
From: Kory Maincent <kory.maincent@...tlin.com>
To: Vadim Fedorenko <vadim.fedorenko@...ux.dev>
Cc: Andrew Lunn <andrew+netdev@...n.ch>, Florian Fainelli
 <florian.fainelli@...adcom.com>, Russell King <linux@...linux.org.uk>,
 Heiner Kallweit <hkallweit1@...il.com>, "David S. Miller"
 <davem@...emloft.net>, Eric Dumazet <edumazet@...gle.com>, Jakub Kicinski
 <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>, Andrei Botila
 <andrei.botila@....nxp.com>, Richard Cochran <richardcochran@...il.com>,
 Andrew Lunn <andrew@...n.ch>, Simon Horman <horms@...nel.org>, Vladimir
 Oltean <vladimir.oltean@....com>, Jacob Keller <jacob.e.keller@...el.com>,
 bcm-kernel-feedback-list@...adcom.com, netdev@...r.kernel.org
Subject: Re: [PATCH net-next v3 6/9] net: phy: microchip_rds_ptp: add HW
 timestamp configuration reporting

On Wed, 19 Nov 2025 12:47:22 +0000
Vadim Fedorenko <vadim.fedorenko@...ux.dev> wrote:

> The driver stores HW timestamping configuration and can technically
> report it. Add callback to do it.
> 
> Signed-off-by: Vadim Fedorenko <vadim.fedorenko@...ux.dev>
> ---
>  drivers/net/phy/microchip_rds_ptp.c | 13 +++++++++++++
>  1 file changed, 13 insertions(+)
> 
> diff --git a/drivers/net/phy/microchip_rds_ptp.c
> b/drivers/net/phy/microchip_rds_ptp.c index 4c6326b0ceaf..d2beb3a2e6c3 100644
> --- a/drivers/net/phy/microchip_rds_ptp.c
> +++ b/drivers/net/phy/microchip_rds_ptp.c
> @@ -476,6 +476,18 @@ static bool mchp_rds_ptp_rxtstamp(struct mii_timestamper
> *mii_ts, return true;
>  }
>  
> +static int mchp_rds_ptp_hwtstamp_get(struct mii_timestamper *mii_ts,
> +				     struct kernel_hwtstamp_config *config)
> +{
> +	struct mchp_rds_ptp_clock *clock =
> +				container_of(mii_ts, struct
> mchp_rds_ptp_clock,
> +					     mii_ts);
> +	config->tx_type = clock->hwts_tx_type;
> +	config->rx_filter = clock->rx_filter;

Same issue as patch 5.

> +
> +	return 0;
> +}
> +
>  static int mchp_rds_ptp_hwtstamp_set(struct mii_timestamper *mii_ts,
>  				     struct kernel_hwtstamp_config *config,
>  				     struct netlink_ext_ack *extack)
> @@ -1282,6 +1294,7 @@ struct mchp_rds_ptp_clock *mchp_rds_ptp_probe(struct
> phy_device *phydev, u8 mmd, clock->mii_ts.rxtstamp = mchp_rds_ptp_rxtstamp;
>  	clock->mii_ts.txtstamp = mchp_rds_ptp_txtstamp;
>  	clock->mii_ts.hwtstamp_set = mchp_rds_ptp_hwtstamp_set;
> +	clock->mii_ts.hwtstamp_get = mchp_rds_ptp_hwtstamp_get;
>  	clock->mii_ts.ts_info = mchp_rds_ptp_ts_info;
>  
>  	phydev->mii_ts = &clock->mii_ts;

-- 
Köry Maincent, Bootlin
Embedded Linux and kernel engineering
https://bootlin.com