linux-kernel - Re: [RFC PATCH v1] ice: add CGU info to devlink info callback

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Message-ID: <20230412203500.36fb7c36@kernel.org>
Date:   Wed, 12 Apr 2023 20:35:00 -0700
From:   Jakub Kicinski <kuba@...nel.org>
To:     Arkadiusz Kubalewski <arkadiusz.kubalewski@...el.com>
Cc:     jiri@...nulli.us, davem@...emloft.net, edumazet@...gle.com,
        pabeni@...hat.com, corbet@....net, jesse.brandeburg@...el.com,
        anthony.l.nguyen@...el.com, richardcochran@...il.com,
        netdev@...r.kernel.org, linux-doc@...r.kernel.org,
        linux-kernel@...r.kernel.org, intel-wired-lan@...ts.osuosl.org
Subject: Re: [RFC PATCH v1] ice: add CGU info to devlink info callback

On Wed, 12 Apr 2023 15:38:11 +0200 Arkadiusz Kubalewski wrote:
> If Clock Generation Unit and dplls are present on NIC board user shall
> know its details.
> Provide the devlink info callback with a new:
> - fixed type object `cgu.id` - hardware variant of onboard CGU
> - running type object `fw.cgu` - CGU firmware version
> - running type object `fw.cgu.build` - CGU configuration build version
> 
> These information shall be known for debugging purposes.
> 
> Test (on NIC board with CGU)
> $ devlink dev info <bus_name>/<dev_name> | grep cgu
>         cgu.id 8032
>         fw.cgu 6021
>         fw.cgu.build 0x1030001
> 
> Test (on NIC board without CGU)
> $ devlink dev info <bus_name>/<dev_name> | grep cgu -c
> 0
> 
> Signed-off-by: Arkadiusz Kubalewski <arkadiusz.kubalewski@...el.com>

Is it flashed together with the rest of the FW components of the NIC?
Or the update method is different?