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From: "Marek Behún" <kabel@kernel.org>
To: Michael Walle <michael@walle.cc>
Cc: andrew@lunn.ch, anthony.l.nguyen@intel.com,
	bigeasy@linutronix.de, davem@davemloft.net,
	dvorax.fuxbrumer@linux.intel.com, f.fainelli@gmail.com,
	hkallweit1@gmail.com, jacek.anaszewski@gmail.com,
	kuba@kernel.org, kurt@linutronix.de, linux-leds@vger.kernel.org,
	netdev@vger.kernel.org, pavel@ucw.cz, sasha.neftin@intel.com,
	vinicius.gomes@intel.com, vitaly.lifshits@intel.com
Subject: Re: [PATCH net-next 5/5] igc: Export LEDs
Date: Tue, 27 Jul 2021 18:32:13 +0200	[thread overview]
Message-ID: <20210727183213.73f34141@thinkpad> (raw)
In-Reply-To: <8edcc387025a6212d58fe01865725734@walle.cc>

Hi,

On Tue, 27 Jul 2021 17:53:58 +0200
Michael Walle <michael@walle.cc> wrote:

> > If we used the devicename as you are suggesting, then for the two LEDs
> > the devicename part would be the same:
> >   ledA -> macA -> ethernet0
> >   ledB -> phyB -> ethernet0
> > although they are clearly on different MACs.  
> 
> Why is that the case? Why can't both the MAC and the PHY request a 
> unique name from the same namespace?

So all the network related devices should request a unique network
relate device ID? Should also wireless PHY devices do this? WWAN modems?
And all these should have the same template for devicename part withing
/sys/class/leds? What should be the template for the devicename, if
wireless PHYs and WWAN modems could also be part of this? It cannot be
"ethernet" anymore.

It seems a better idea to me to just some nice identifier for the LED
controller.

> As Andrew pointed out, the names in
> /sys/class/leds don't really matter. Ok, it will still depend on the
> probe order which might not be the case if you split it between ethmac
> and ethphy.

Yes, the LED name does not matter. But the LED subsystem requires names
in a specific format, this is already decided and documented, we are
not going to be changing this. The only reasonable thing we can do now
is to choose a sane devicename.

> Sorry, if I may ask stupid questions here. I don't want to cause much
> trouble, here. I was just wondering why we have to make up two different
> (totally unrelated names to the network interface names) instead of just
> one (again totally unrelated to the interface name and index).

It seems more logical to me from kernel's point of view.

> But I was actually referring to your "you see the leds in /sys/ of all
> the network adapters". That problem still persists, right?

Yes, this still persists. But we really do not want to start
introducing namespaces to the LED subsystem.

Marek

  parent reply	other threads:[~2021-07-27 16:32 UTC|newest]

Thread overview: 68+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-07-16 21:24 [PATCH net-next 0/5][pull request] 1GbE Intel Wired LAN Driver Updates 2021-07-16 Tony Nguyen
2021-07-16 21:24 ` [PATCH net-next 1/5] igc: Add possibility to add flex filter Tony Nguyen
2021-07-16 21:24 ` [PATCH net-next 2/5] igc: Integrate flex filter into ethtool ops Tony Nguyen
2021-07-16 21:24 ` [PATCH net-next 3/5] igc: Allow for Flex Filters to be installed Tony Nguyen
2021-07-16 21:24 ` [PATCH net-next 4/5] igc: Make flex filter more flexible Tony Nguyen
2021-07-16 21:24 ` [PATCH net-next 5/5] igc: Export LEDs Tony Nguyen
2021-07-16 21:56   ` Andrew Lunn
2021-07-18 22:10     ` Heiner Kallweit
2021-07-18 22:33       ` Andrew Lunn
2021-07-19  6:17         ` Kurt Kanzenbach
2021-07-19  9:46           ` Jakub Kicinski
2021-07-19  6:06     ` Kurt Kanzenbach
2021-07-19 13:15       ` Andrew Lunn
2021-07-20  8:54         ` Kurt Kanzenbach
2021-07-21 19:18         ` Marek Behún
2021-07-18 22:19   ` Heiner Kallweit
2021-07-19  0:40     ` Andrew Lunn
2021-07-20 15:00       ` Heiner Kallweit
2021-07-20 15:42         ` Andrew Lunn
2021-07-20 20:29           ` Heiner Kallweit
2021-07-21 14:35             ` Andrew Lunn
2021-07-21 16:02               ` Heiner Kallweit
2021-07-21 18:23               ` Pavel Machek
2021-07-21 18:25                 ` Pavel Machek
2021-07-21 18:45             ` Marek Behún
2021-07-21 19:50               ` Andrew Lunn
2021-07-21 20:07                 ` Marek Behún
2021-07-21 20:54                   ` Andrew Lunn
2021-07-21 21:31                     ` Marek Behún
2021-07-21 22:45                     ` Pavel Machek
2021-07-22  1:45                       ` Andrew Lunn
2021-07-22  2:19                         ` Marek Behún
2021-07-21 22:34                   ` Pavel Machek
2021-07-22  3:52                   ` Florian Fainelli
2021-07-26 17:42                   ` Jacek Anaszewski
2021-07-26 18:44                     ` Marek Behún
2021-07-26 20:59                     ` Heiner Kallweit
2021-07-27  0:06                       ` Marek Behún
2021-07-27  1:57                         ` Andrew Lunn
2021-07-27  8:15                           ` Michael Walle
2021-07-27 14:56                             ` Marek Behún
2021-07-27 15:03                               ` Michael Walle
2021-07-27 15:24                                 ` Andrew Lunn
2021-07-27 15:28                                 ` Marek Behún
2021-07-27 15:53                                   ` Michael Walle
2021-07-27 16:23                                     ` Andrew Lunn
2021-07-27 16:32                                     ` Marek Behún [this message]
2021-07-27 16:42                                       ` Andrew Lunn
2021-07-27 19:42                                       ` Michael Walle
2021-07-28 20:43                                       ` Heiner Kallweit
2021-07-29  6:39                                         ` Kurt Kanzenbach
2021-07-29  8:59                                         ` Marek Behún
2021-07-29 21:54                                           ` Heiner Kallweit
2021-08-10 17:29                                         ` Pavel Machek
2021-08-10 17:55                                           ` Marek Behún
2021-08-10 19:53                                             ` Pavel Machek
2021-08-10 20:53                                               ` Marek Behún
2021-08-17 19:02                                                 ` Pavel Machek
2021-08-25 15:26                                                   ` Marek Behún
2021-08-26 12:45                                                     ` Pavel Machek
2021-08-10 20:46                                           ` Heiner Kallweit
2021-08-10 21:21                                             ` Andrew Lunn
2021-07-27 13:55                           ` Marek Behún
2021-08-10 17:22                             ` Documentation for naming LEDs was " Pavel Machek
2021-07-19 21:48   ` Jesse Brandeburg
2021-07-20 13:31     ` Kurt Kanzenbach
2021-07-17  0:30 ` [PATCH net-next 0/5][pull request] 1GbE Intel Wired LAN Driver Updates 2021-07-16 patchwork-bot+netdevbpf
2021-07-17 17:36   ` Andrew Lunn

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