netdev - Re: [PATCH net-next v2 3/4] devlink: add function unique identifier to devlink dev info

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Message-ID: <20250325044929.5b3947c6@kernel.org>
Date: Tue, 25 Mar 2025 04:49:29 -0700
From: Jakub Kicinski <kuba@...nel.org>
To: Jiri Pirko <jiri@...nulli.us>
Cc: netdev@...r.kernel.org, davem@...emloft.net, edumazet@...gle.com,
 pabeni@...hat.com, saeedm@...dia.com, leon@...nel.org, tariqt@...dia.com,
 andrew+netdev@...n.ch, horms@...nel.org, donald.hunter@...il.com,
 parav@...dia.com
Subject: Re: [PATCH net-next v2 3/4] devlink: add function unique identifier
 to devlink dev info

On Thu, 20 Mar 2025 09:59:46 +0100 Jiri Pirko wrote:
> From: Jiri Pirko <jiri@...dia.com>
> 
> Presently, for multi-PF NIC each PF reports the same serial_number and
> board.serial_number.
> 
> To universally identify a function, add function unique identifier (uid)
> to be obtained from the driver as a string of arbitrary length.

We need more explanation for the "why"; this:

+   * - ``function.uid``
+     - Function uniqueue identifier.
+
+       Vendor defined uniqueue identifier of a function.

is really below bar in terms of documentation.