linux-kernel - Re: [PATCH net 2/2] net: phylink: use USXGMII control-word format to parse Q-USGMII word

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Message-ID: <ZIITrPpnQB2rQNUr@corigine.com>
Date:   Thu, 8 Jun 2023 19:45:16 +0200
From:   Simon Horman <simon.horman@...igine.com>
To:     Maxime Chevallier <maxime.chevallier@...tlin.com>
Cc:     davem@...emloft.net, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org, thomas.petazzoni@...tlin.com,
        Andrew Lunn <andrew@...n.ch>,
        Florian Fainelli <f.fainelli@...il.com>,
        Heiner Kallweit <hkallweit1@...il.com>,
        Russell King <linux@...linux.org.uk>,
        linux-arm-kernel@...ts.infradead.org, Horatiu.Vultur@...rochip.com,
        Allan.Nielsen@...rochip.com, UNGLinuxDriver@...rochip.com,
        Vladimir Oltean <vladimir.oltean@....com>
Subject: Re: [PATCH net 2/2] net: phylink: use USXGMII control-word format to
 parse Q-USGMII word

On Thu, Jun 08, 2023 at 06:34:15PM +0200, Maxime Chevallier wrote:

...

> diff --git a/drivers/net/phy/phylink.c b/drivers/net/phy/phylink.c
> index 809e6d5216dc..730f8860d2a6 100644
> --- a/drivers/net/phy/phylink.c
> +++ b/drivers/net/phy/phylink.c
> @@ -3298,6 +3298,41 @@ void phylink_decode_usxgmii_word(struct phylink_link_state *state,
>  }
>  EXPORT_SYMBOL_GPL(phylink_decode_usxgmii_word);
>  
> +/**
> + * phylink_decode_usgmii_word() - decode the USGMII word from a MAC PCS
> + * @state: a pointer to a struct phylink_link_state.
> + * @lpa: a 16 bit value which stores the USGMII auto-negotiation word
> + *
> + * Helper for MAC PCS supporting the USGMII protocol and the auto-negotiation
> + * code word.  Decode the USGMII code word and populate the corresponding fields
> + * (speed, duplex) into the phylink_link_state structure. The structure for this
> + * word is the same as the USXGMII word, expect it only supports speeds up to
> + * 1Gbps.
> + */
> +static void phylink_decode_usgmii_word(struct phylink_link_state *state,
> +				 uint16_t lpa)

Hi Maxime,

a minor nit from my side: the indentation of the line above should line up
with the inside of the opening parentheses on the previous line.

static void phylink_decode_usgmii_word(struct phylink_link_state *state,
				       uint16_t lpa)

...

As I see there is feedback from Russell, of a more substantial nature,
and it looks will be a v2, I'll mark this as changes requested in patchwork.

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