linux-kernel - RE: [RFC PATCH] net: add net-device TX clock source selection framework

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Message-ID: <SJ2PR11MB8452713FE8051A2B18E742DE9B24A@SJ2PR11MB8452.namprd11.prod.outlook.com>
Date: Wed, 30 Jul 2025 14:09:03 +0000
From: "Kubalewski, Arkadiusz" <arkadiusz.kubalewski@...el.com>
To: Jiri Pirko <jiri@...nulli.us>
CC: "Nguyen, Anthony L" <anthony.l.nguyen@...el.com>, "Kitszel, Przemyslaw"
	<przemyslaw.kitszel@...el.com>, "andrew+netdev@...n.ch"
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	<intel-wired-lan@...ts.osuosl.org>, "netdev@...r.kernel.org"
	<netdev@...r.kernel.org>
Subject: RE: [RFC PATCH] net: add net-device TX clock source selection
 framework

>From: Jiri Pirko <jiri@...nulli.us>
>Sent: Wednesday, July 30, 2025 2:26 PM
>
>Tue, Jul 29, 2025 at 12:45:28PM +0200, arkadiusz.kubalewski@...el.com
>wrote:
>
>[...]
>
>>User interface:
>>- Read /sys/class/net/<device>/tx_clk/<clock_name> to get status (0/1)
>>- Write "1" to switch to that clock source
>
>I wonder, if someone invented a time machine and sent me back to 2005...
>

Probably temporarily, but this was quickest to invent :S

Creating a single DPLL device for each PF/port seems overshot,
Could go with extending netdev-genl
Any other ideas?

Thank you!
Arkadiusz

>[...]