netdev - Re: [PATCH] net/phy/vitesse: Configure RGMII skew on VSC8601, if needed

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]

Date:   Mon, 14 Nov 2016 13:54:57 -0800
From:   Alex <alex.g@...ptrum.com>
To:     Florian Fainelli <f.fainelli@...il.com>,
        David Miller <davem@...emloft.net>
CC:     <gokhan@...ptrum.com>, <netdev@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] net/phy/vitesse: Configure RGMII skew on VSC8601, if
 needed



On 11/14/2016 01:25 PM, Florian Fainelli wrote:
> On 11/14/2016 01:18 PM, David Miller wrote:
>> From: Alexandru Gagniuc <alex.g@...ptrum.com>
>> Date: Sat, 12 Nov 2016 15:32:13 -0800
>>
>>> +	if (phydev->interface == PHY_INTERFACE_MODE_RGMII_ID)
>>> +		ret = vsc8601_add_skew(phydev);
>>
>> I think you should use phy_interface_is_rgmii() here.
>>
>
> This would include all RGMII modes, here I think the intent is to check
> for PHY_INTERFACE_MODE_RGMII_ID and PHY_INTERFACE_MODE_RGMII_TXID (or
> RXID),

That is correct.

>  Alexandru, what direction does the skew settings apply to?

It applies a skew in both TX and RX directions.

Alex