option directive and turning on AOE

[Sam]

OK, once i get it up I'll look into these other avenues
to see if they're a cleaner approach.

On Tue, 31 Aug 2004, Brooks Davis wrote:

> On Tue, Aug 31, 2004 at 02:27:33PM -0600, Scott Long wrote:
>> Sam wrote:
>>
>>> I've added code to if_ethersubr.c:/ether_demux/
>>> to queue up AoE frames as they appear.  I followed
>>> suit with other protocols and included my addition
>>> inside of an #ifdef AOE.  Where do I turn this on?
>>> I thought perhaps just adding an 'option AOE' to
>>> the config would do it, but it doesn't -- so clearly
>>> I don't understand how the option directive works.
>>> The config man page doesn't talk about option/device
>>> directives ...
>>>
>>> I'm still looking, but a clue would be well received.
>>
>> Did you modify /sys/conf/options to tell it about your
>> AOE option?  If so, then you should have specified the name
>> of a header file that the option would be #define'd into.
>> Include that header file in if_ethersubr.c and you should
>> have no problems.
>>
>> Incidentally, this might be an area when netgraph would be
>> useful.  Instead of having an AoE specific hook in the
>> stack, you could have an AoE netgraph module that uses the
>> existing netgraph hooks.  It's just an idea, though.
>
> Another option might be a PFIL hook.  There isn't one there now, but I
> think I've seen talk of adding one.  Actually, if we did that, we could
> get most of the netgraph specific hooks out of the ethernet code.
>
> -- Brooks
>
> --
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