linux-kernel - RE: [PATCH 3/3] net: ethernet: add support for high speed mac and usxgmii pcs

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Message-ID: <CO2PR07MB246952476A8F08C9EC245BC5C1780@CO2PR07MB2469.namprd07.prod.outlook.com>
Date:   Sat, 23 Feb 2019 06:24:46 +0000
From:   Parshuram Raju Thombare <pthombar@...ence.com>
To:     Andrew Lunn <andrew@...n.ch>
CC:     "nicolas.ferre@...rochip.com" <nicolas.ferre@...rochip.com>,
        "davem@...emloft.net" <davem@...emloft.net>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        "f.fainelli@...il.com" <f.fainelli@...il.com>,
        "hkallweit1@...il.com" <hkallweit1@...il.com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Rafal Ciepiela <rafalc@...ence.com>,
        Piotr Sroka <piotrs@...ence.com>, Jan Kotas <jank@...ence.com>
Subject: RE: [PATCH 3/3] net: ethernet: add support for high speed mac and
 usxgmii pcs

>>  	if (macb_is_gem(bp)) {
>> -		linkmode_copy(phydev->supported, PHY_GBIT_FEATURES);
>> -		if (bp->caps & MACB_CAPS_TWO_PT_FIVE_GIG_SPEED)
>> -
>	linkmode_set_bit(ETHTOOL_LINK_MODE_2500baseT_Full_BIT,
>> -					 phydev->supported);
>> +		if (bp->caps & MACB_CAPS_HIGH_SPEED) {
>> +			linkmode_copy(phydev->supported,
>PHY_10GBIT_FEATURES);
>> +		} else {
>> +			u32 bitmask =
>ETHTOOL_LINK_MODE_2500baseT_Full_BIT;
>> +
>> +			linkmode_copy(phydev->supported,
>PHY_GBIT_FEATURES);
>> +			if (bp->caps & MACB_CAPS_TWO_PT_FIVE_GIG_SPEED)
>> +				linkmode_set_bit(bitmask, phydev->supported);
>> +		}
>
>Same issue again. Somebody could be using a 10G MAC with a 2.5G PHY.
>
>     Andrew
Hi Andrew,

Ok, I think this should have been logical AND. I will modify to use phy_set_max_speed() 
instead of directly copying linkmodes.

Regards,
Parshuram Thombare