netdev.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: "Russell King (Oracle)" <linux@armlinux.org.uk>
To: Abhishek Chauhan <quic_abchauha@quicinc.com>
Cc: "David S. Miller" <davem@davemloft.net>,
	Eric Dumazet <edumazet@google.com>,
	Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>,
	netdev@vger.kernel.org, linux-kernel@vger.kernel.org,
	Andrew Halaney <ahalaney@redhat.com>,
	Andrew Lunn <andrew@lunn.ch>,
	Heiner Kallweit <hkallweit1@gmail.com>,
	Bartosz Golaszewski <bartosz.golaszewski@linaro.org>,
	"linux-tegra@vger.kernel.org" <linux-tegra@vger.kernel.org>,
	Brad Griffis <bgriffis@nvidia.com>,
	Vladimir Oltean <vladimir.oltean@nxp.com>,
	Jon Hunter <jonathanh@nvidia.com>,
	Maxime Chevallier <maxime.chevallier@bootlin.com>,
	Przemek Kitszel <przemyslaw.kitszel@intel.com>,
	kernel@quicinc.com
Subject: Re: [PATCH net v5 1/2] net: phy: aquantia: AQR115c fix up PMA capabilities
Date: Tue, 1 Oct 2024 12:59:13 +0100	[thread overview]
Message-ID: <ZvvkEYYljV4IWlJH@shell.armlinux.org.uk> (raw)
In-Reply-To: <20240930223341.3807222-2-quic_abchauha@quicinc.com>

On Mon, Sep 30, 2024 at 03:33:40PM -0700, Abhishek Chauhan wrote:
> AQR115c reports incorrect PMA capabilities which includes
> 10G/5G and also incorrectly disables capabilities like autoneg
> and 10Mbps support.
> 
> AQR115c as per the Marvell databook supports speeds up to 2.5Gbps
> with autonegotiation.

Thanks for persisting with this. Just one further item:

> +static int aqr115c_get_features(struct phy_device *phydev)
> +{
> +	/* PHY FIXUP */
> +	/* Phy supports Speeds up to 2.5G with Autoneg though the phy PMA says otherwise */
> +	linkmode_or(phydev->supported, phydev->supported, phy_gbit_features);
> +	linkmode_set_bit(ETHTOOL_LINK_MODE_2500baseT_Full_BIT, phydev->supported);

I'd still prefer to see:

	unsigned long *supported = phydev->supported;

	/* PHY supports speeds up to 2.5G with autoneg. PMA capabilities
	 * are not useful.
	 */
	linkmode_or(supported, supported, phy_gbit_features);
	linkmode_set_bit(ETHTOOL_LINK_MODE_2500baseT_Full_BIT, supported);

because that avoids going over column 80, and networking prefers it that
way.

Other than that, the patch looks the best solution.

Thanks.

-- 
RMK's Patch system: https://www.armlinux.org.uk/developer/patches/
FTTP is here! 80Mbps down 10Mbps up. Decent connectivity at last!

  reply	other threads:[~2024-10-01 11:59 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-09-30 22:33 [PATCH net v5 0/2] Fix AQR PMA capabilities Abhishek Chauhan
2024-09-30 22:33 ` [PATCH net v5 1/2] net: phy: aquantia: AQR115c fix up " Abhishek Chauhan
2024-10-01 11:59   ` Russell King (Oracle) [this message]
2024-10-01 18:06     ` Abhishek Chauhan (ABC)
2024-09-30 22:33 ` [PATCH net v5 2/2] net: phy: aquantia: remove usage of phy_set_max_speed Abhishek Chauhan
2024-10-01 12:00   ` Russell King (Oracle)
2024-10-01 18:06     ` Abhishek Chauhan (ABC)

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=ZvvkEYYljV4IWlJH@shell.armlinux.org.uk \
    --to=linux@armlinux.org.uk \
    --cc=ahalaney@redhat.com \
    --cc=andrew@lunn.ch \
    --cc=bartosz.golaszewski@linaro.org \
    --cc=bgriffis@nvidia.com \
    --cc=davem@davemloft.net \
    --cc=edumazet@google.com \
    --cc=hkallweit1@gmail.com \
    --cc=jonathanh@nvidia.com \
    --cc=kernel@quicinc.com \
    --cc=kuba@kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-tegra@vger.kernel.org \
    --cc=maxime.chevallier@bootlin.com \
    --cc=netdev@vger.kernel.org \
    --cc=pabeni@redhat.com \
    --cc=przemyslaw.kitszel@intel.com \
    --cc=quic_abchauha@quicinc.com \
    --cc=vladimir.oltean@nxp.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).