linux-kernel - Re: [PATCH net v2] net: phy: aquantia: Introduce custom get

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <32ce1fd1-5bf1-4772-9a1a-4089fd87e3f1@quicinc.com>
Date: Tue, 24 Sep 2024 08:19:57 -0700
From: "Abhishek Chauhan (ABC)" <quic_abchauha@...cinc.com>
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>, <netdev@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, Andrew Halaney <ahalaney@...hat.com>,
        "Russell King (Oracle)" <linux@...linux.org.uk>,
        Heiner Kallweit
	<hkallweit1@...il.com>,
        Bartosz Golaszewski <bartosz.golaszewski@...aro.org>,
        "linux-tegra@...r.kernel.org" <linux-tegra@...r.kernel.org>,
        Brad Griffis
	<bgriffis@...dia.com>,
        Vladimir Oltean <vladimir.oltean@....com>,
        Jon Hunter
	<jonathanh@...dia.com>,
        Maxime Chevallier <maxime.chevallier@...tlin.com>,
        <kernel@...cinc.com>
Subject: Re: [PATCH net v2] net: phy: aquantia: Introduce custom get_features



On 9/24/2024 5:04 AM, Andrew Lunn wrote:
>> +static void aqr_supported_speed(struct phy_device *phydev, u32 max_speed)
>> +{
>> +	__ETHTOOL_DECLARE_LINK_MODE_MASK(supported) = { 0, };
>> +
>> +	linkmode_set_bit(ETHTOOL_LINK_MODE_Autoneg_BIT, supported);
>> +	linkmode_set_bit(ETHTOOL_LINK_MODE_Pause_BIT, supported);
>> +	linkmode_set_bit(ETHTOOL_LINK_MODE_Asym_Pause_BIT, supported);
>> +	linkmode_set_bit(ETHTOOL_LINK_MODE_FIBRE_BIT, supported);
>> +	linkmode_set_bit(ETHTOOL_LINK_MODE_TP_BIT, supported);
>> +	linkmode_set_bit(ETHTOOL_LINK_MODE_10baseT_Half_BIT, supported);
>> +	linkmode_set_bit(ETHTOOL_LINK_MODE_10baseT_Full_BIT, supported);
>> +	linkmode_set_bit(ETHTOOL_LINK_MODE_100baseT_Half_BIT, supported);
>> +	linkmode_set_bit(ETHTOOL_LINK_MODE_100baseT_Full_BIT, supported);
>> +	linkmode_set_bit(ETHTOOL_LINK_MODE_1000baseT_Half_BIT, supported);
>> +	linkmode_set_bit(ETHTOOL_LINK_MODE_1000baseT_Full_BIT, supported);
>> +
>> +	if (max_speed == SPEED_2500) {
>> +		linkmode_set_bit(ETHTOOL_LINK_MODE_2500baseX_Full_BIT, supported);
>> +		linkmode_set_bit(ETHTOOL_LINK_MODE_2500baseT_Full_BIT, supported);
>> +	} else if (max_speed == SPEED_5000) {
>> +		linkmode_set_bit(ETHTOOL_LINK_MODE_2500baseX_Full_BIT, supported);
>> +		linkmode_set_bit(ETHTOOL_LINK_MODE_2500baseT_Full_BIT, supported);
>> +		linkmode_set_bit(ETHTOOL_LINK_MODE_5000baseT_Full_BIT, supported);
>> +	}
>> +
>> +	linkmode_copy(phydev->supported, supported);
>> +}
> 
> So you have got lots of comments....
> 
> Please split this into two patches. One patch for the PHY you are
> interested in, and a second patch to remove phy_set_max_speed() and
> fix up that PHY.
> 
Noted! 

> Also, i would prefer you do the normal feature discovery, calling
> genphy_read_abilities() and/or genphy_c45_pma_read_abilities() and
> then fixup the results by removing the modes which should not be
> there.
> 
Sounds good! 
> Take a look at bcm84881_get_features() as an example.
> 
Thanks Andrew! 
> 	Andrew