netdev - Re: [PATCH net-next 3/3] net: bcmgenet: Add support for 7712 16nm internal EPHY

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:   Fri, 22 Oct 2021 12:38:45 -0700
From:   Florian Fainelli <f.fainelli@...il.com>
To:     Andrew Lunn <andrew@...n.ch>,
        Florian Fainelli <f.fainelli@...il.com>
Cc:     netdev@...r.kernel.org, Doug Berger <opendmb@...il.com>,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        "open list:BROADCOM GENET ETHERNET DRIVER" 
        <bcm-kernel-feedback-list@...adcom.com>,
        open list <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH net-next 3/3] net: bcmgenet: Add support for 7712 16nm
 internal EPHY

Hello Andrew,

On 10/22/21 12:36 PM, Andrew Lunn wrote:
> On Fri, Oct 22, 2021 at 09:17:03AM -0700, Florian Fainelli wrote:
>> The 16nm internal EPHY that is present in 7712 is actually a 16nm
>> Gigabit PHY which has been forced to operate in 10/100 mode.
> 
> Hi Florian
> 
> Will genphy_read_abilities() detect it as a 1G PHY? Does bcmgenet.c
> need to call phy_set_max_speed() to stop it advertising 1G?

That is not necessary, the capabilities have been adjusted accordingly,
the PHY only advertises 10/100 and not above.
-- 
Florian