[ofa-general] Re: [Query] ib add path record cache

[Sean Hefty]

> Yes, so there are 4 less bytes available.

..and we may want to shift everything down another 4 bytes for 
alignment, if that's needed.  It could be very convenient to have the 
exact same layout as the SA MADs.  This would let an app issue a normal 
SA GetTable query, store away the response, then later forward the 
response to the local SA only changing a couple of fields without having 
to re-pack everything.

>> The mad layer just wouldn't know to enable RMPP as easily as it does 
>> with vendor class 2.
> 
> Ugh... That's an understatement.

We could add a check for the local SA class, but I'm hoping there's a 
better way.  What would be nice are vendor/application specific 
extensions to the existing classes... or even a standardized framework 
for supporting a distributed SA.  (Neither of these seem likely anytime 
soon though.)

- Sean