netdev - Re: [PATCH V1 net-next 0/5] Add devlink support to ena

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Message-ID: <20230117093619.147acc3f@kernel.org>
Date:   Tue, 17 Jan 2023 09:36:19 -0800
From:   Jakub Kicinski <kuba@...nel.org>
To:     Shay Agroskin <shayagr@...zon.com>
Cc:     Gal Pressman <gal@...dia.com>,
        "Arinzon, David" <darinzon@...zon.com>,
        David Miller <davem@...emloft.net>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        "Machulsky, Zorik" <zorik@...zon.com>,
        "Matushevsky, Alexander" <matua@...zon.com>,
        "Bshara, Saeed" <saeedb@...zon.com>,
        "Bshara, Nafea" <nafea@...zon.com>,
        "Saidi, Ali" <alisaidi@...zon.com>,
        "Kiyanovski, Arthur" <akiyano@...zon.com>,
        "Dagan, Noam" <ndagan@...zon.com>,
        "Itzko, Shahar" <itzko@...zon.com>,
        "Abboud, Osama" <osamaabb@...zon.com>,
        "Bernstein, Amit" <amitbern@...zon.com>
Subject: Re: [PATCH V1 net-next 0/5] Add devlink support to ena

On Mon, 16 Jan 2023 16:23:56 +0200 Shay Agroskin wrote:
> Going forward, can I ask what's the community's stand on adding 
> sysfs or procfse entries to the driver as means to tweak custom 
> device attributes ?

We prefer to avoid both of those.

If you're worried about user having hard time changing the parameter
because the user space ethtool command is out of date - our solution 
to that will likely be the "Netlink protocol descriptions in YAML".

With that thing you don't really need a custom CLI tool to issue
Netlink commands. Until it gets merged you may need to hand-craft 
the right netlink message in python or another scripting language 
of choice :(