Re: [PATCH v2 00/17] octeontx2-af: NPC parser and NIX blocks initialization

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On Fri, Oct 26, 2018 at 5:47 PM Andrew Lunn <andrew@xxxxxxx> wrote:
>
> > I fear that setting a precedent of using the mbox for user-level
> > configuration management would mean that we would have to
> > treat each of these interfaces as an ABI, which in turn requires
> > much deeper review as well as raising the fundamental question
> > on how this should be done across drivers. The mailbox interface
> > seem inherently nonportable to other hardware here, which is
> > a significant downside.
>
> Hi Arnd
>
> You might want to go look at the Freescale DPAA2. They also want to
> add an ioctl to pass binary blob commands to their firmware. The
> patches were re-posted recently.
>
> https://lkml.org/lkml/2018/10/5/873
>
> When this was first posted, i strongly argued against it.
> You also commented about this:
>
> https://lkml.org/lkml/2018/3/24/29
>
> We need to consistent here. I think it is a bad idea.

I agree, and this is exactly why I commented here. I just wanted
to first ensure that it's not me misunderstanding the scope and
intention of the interfaces here before I say it's a mistake.

        Arnd



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