Re: Requesting DLT_* values for Ethernet switches proprietary tagging protocol

[Andrew Lunn <andrew () lunn ch>]

On Fri, Jan 18, 2019 at 10:19:04AM -0800, Florian Fainelli wrote:
> On 1/18/19 6:13 AM, Michael Richardson wrote:
> > Guy Harris <gharris () sonic net> wrote:
> >     >> OK, then requesting 10 DLT values, one per-tag is reasonable?
> >
> >     > Yes.
> >
> > This is totally how it should be done.
> >
> > Guy, do we want to allocate 16 or 32 values, aligned, so that the
> > it be can DLT_TAG_BASE + DSA_TAG_xx maps?  Are the kernel values stable?
> > And to leave room for growth.
>
> The kernel values are stable because they are now (as of 4.19) part of
> the sysfs attribute ABI. Having a base to offset from would ne neat.

Hi Florian

As Guy points out, we should probably move them into a uapi
header. That makes it clear the values are ABI.

        Andrew
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