linux-kernel - Re: [PATCH net-next v5 06/15] net: macsec: add nla support for changing the offloading selection

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Message-ID: <20200113152833.GD2131@nanopsycho>
Date:   Mon, 13 Jan 2020 16:28:33 +0100
From:   Jiri Pirko <jiri@...nulli.us>
To:     Antoine Tenart <antoine.tenart@...tlin.com>
Cc:     davem@...emloft.net, sd@...asysnail.net, andrew@...n.ch,
        f.fainelli@...il.com, hkallweit1@...il.com, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org, thomas.petazzoni@...tlin.com,
        alexandre.belloni@...tlin.com, allan.nielsen@...rochip.com,
        camelia.groza@....com, Simon.Edelhaus@...antia.com,
        Igor.Russkikh@...antia.com, jakub.kicinski@...ronome.com
Subject: Re: [PATCH net-next v5 06/15] net: macsec: add nla support for
 changing the offloading selection

Mon, Jan 13, 2020 at 04:20:48PM CET, antoine.tenart@...tlin.com wrote:
>Hello Jiri,
>
>On Mon, Jan 13, 2020 at 04:02:02PM +0100, Jiri Pirko wrote:
>> 
>> I wonder, did you consider having MACSEC_OFFLOAD_ATTR_TYPE attribute
>> passed during the macsec device creation (to macsec_newlink), so the
>> device is either created "offloded" or not? Looks like an extra step.
>> Or do you see a scenario one would change "offload" setting on fly?
>> If not, I don't see any benefit in having this as a separate command.
>
>That would be possible as well. When we discussed offloading selection
>we thought allowing the user to fallback to another offloading mode when
>a rule or a set of rules isn't supported by a given device would be
>useful, even though updating the offloading selection at runtime isn't
>fully transparent for now (this would be a nice follow-up).

Okay. Thanks!

>
>Thanks,
>Antoine
>
>-- 
>Antoine Ténart, Bootlin
>Embedded Linux and Kernel engineering
>https://bootlin.com