netdev - Re: [patch net-next v3 13/13] net: expose devlink port over rtnetlink

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Message-ID: <Y2KOnKs0fsDNihaW@nanopsycho>
Date:   Wed, 2 Nov 2022 16:37:00 +0100
From:   Jiri Pirko <jiri@...nulli.us>
To:     Jakub Kicinski <kuba@...nel.org>
Cc:     netdev@...r.kernel.org, davem@...emloft.net, pabeni@...hat.com,
        edumazet@...gle.com, tariqt@...dia.com, moshe@...dia.com,
        saeedm@...dia.com, linux-rdma@...r.kernel.org
Subject: Re: [patch net-next v3 13/13] net: expose devlink port over rtnetlink

Wed, Nov 02, 2022 at 04:13:25PM CET, kuba@...nel.org wrote:
>On Wed, 2 Nov 2022 08:10:06 -0700 Jakub Kicinski wrote:
>> On Wed, 2 Nov 2022 12:22:09 +0100 Jiri Pirko wrote:
>> >> Why produce the empty nest if port is not set?    
>> > 
>> > Empty nest indicates that kernel supports this but there is no devlink
>> > port associated. I see no other way to indicate this :/  
>> 
>> Maybe it's time to plumb policies thru to classic netlink, instead of
>> creating weird attribute constructs?
>
>Not a blocker, FWIW, just pointing out a better alternative.

Or, even better, move RTnetlink to generic netlink. Really, there is no
point to have it as non-generic netlink forever. We moved ethtool there,
why not RTnetlink?