netdev - Re: [PATCH net-next v3 1/2] dpll: add clock quality level attribute and op

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Message-ID: <2ec44c11-8387-4c38-97f4-a1fbcb5e1a4e@linux.dev>
Date: Tue, 15 Oct 2024 15:50:41 +0100
From: Vadim Fedorenko <vadim.fedorenko@...ux.dev>
To: Jakub Kicinski <kuba@...nel.org>, Jiri Pirko <jiri@...nulli.us>
Cc: netdev@...r.kernel.org, davem@...emloft.net, edumazet@...gle.com,
 pabeni@...hat.com, donald.hunter@...il.com, arkadiusz.kubalewski@...el.com,
 saeedm@...dia.com, leon@...nel.org, tariqt@...dia.com
Subject: Re: [PATCH net-next v3 1/2] dpll: add clock quality level attribute
 and op

On 15/10/2024 15:26, Jakub Kicinski wrote:
> On Mon, 14 Oct 2024 10:11:32 +0200 Jiri Pirko wrote:
>> +    type: enum
>> +    name: clock-quality-level
>> +    doc: |
>> +      level of quality of a clock device. This mainly applies when
>> +      the dpll lock-status is not DPLL_LOCK_STATUS_LOCKED.
>> +      The current list is defined according to the table 11-7 contained
>> +      in ITU-T G.8264/Y.1364 document. One may extend this list freely
>> +      by other ITU-T defined clock qualities, or different ones defined
>> +      by another standardization body (for those, please use
>> +      different prefix).
> 
> uAPI extensibility aside - doesn't this belong to clock info?
> I'm slightly worried we're stuffing this attr into DPLL because
> we have netlink for DPLL but no good way to extend clock info.

There is a work going on by Maciek Machnikowski about extending clock
info. But the progress is kinda slow..

>> +    entries:
>> +      -
>> +        name: itu-opt1-prc
>> +        value: 1
>> +      -
>> +        name: itu-opt1-ssu-a
>> +      -
>> +        name: itu-opt1-ssu-b
>> +      -
>> +        name: itu-opt1-eec1
>> +      -
>> +        name: itu-opt1-prtc
>> +      -
>> +        name: itu-opt1-eprtc
>> +      -
>> +        name: itu-opt1-eeec
>> +      -
>> +        name: itu-opt1-eprc
>> +    render-max: true
> 
> Why render max? Just to align with other unnecessary max defines in
> the file?