netdev - Re: [PATCH net-next 5/5] igc: Export LEDs

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:   Tue, 27 Jul 2021 15:55:10 +0200
From:   Marek Behún <kabel@...nel.org>
To:     Andrew Lunn <andrew@...n.ch>
Cc:     Heiner Kallweit <hkallweit1@...il.com>,
        Jacek Anaszewski <jacek.anaszewski@...il.com>,
        Pavel Machek <pavel@....cz>,
        Florian Fainelli <f.fainelli@...il.com>,
        Tony Nguyen <anthony.l.nguyen@...el.com>, davem@...emloft.net,
        kuba@...nel.org, Kurt Kanzenbach <kurt@...utronix.de>,
        netdev@...r.kernel.org, sasha.neftin@...el.com,
        vitaly.lifshits@...el.com, vinicius.gomes@...el.com,
        Sebastian Andrzej Siewior <bigeasy@...utronix.de>,
        Dvora Fuxbrumer <dvorax.fuxbrumer@...ux.intel.com>,
        "linux-leds@...r.kernel.org" <linux-leds@...r.kernel.org>
Subject: Re: [PATCH net-next 5/5] igc: Export LEDs

Hi Andrew,

On Tue, 27 Jul 2021 03:57:13 +0200
Andrew Lunn <andrew@...n.ch> wrote:

> > The last time we discussed this (Andrew, Pavel and I), we've decided
> > that for ethernet PHY controlled LEDs we want the devicename part
> > should be something like
> >    phyN  or  ethphyN  or  ethernet-phyN
> > with N a number unique for every PHY (a simple atomically increased
> > integer for every ethernet PHY).  
> 
> We might want to rethink this. PHYs typically have 2 or 3 LEDs. So we
> want a way to indicate which LED of a PHY it is. So i suspect we will
> want something like
> 
> ethphyN-led0, ethphyN-led1, ethphyN-led2.

But... there is still color and function and possibly function-numerator
to differentiate them. I was talking only about the devicename part. So
for three LEDs you can have, for example:
  ethphyN:green:link
  ethphyN:yellow:activity
Even if you don't have information about color, the default function
(on chip reset) should be different. And even if it is not, the
function enumerator would fix this:
  ethphyN::link-1
  ethphyN::link-2

Marek