[brussels-dev] Re: [driver-discuss] Re: [networking-discuss] Brussels high-level design document

[Raymond LI - Sun Microsystems - Beijing China]

Garrett D'Amore wrote:
>>> * i'd like to see more public tunables.  E.g. the lance_mode, ipg0, 
>>> ipg1, ipg2 values exposed by all NSN drivers.
>>>
>> I wonder if we could add more public properties in 2nd phase's scope. 
>> In the first stage, it focuses on bge/e1000g/nge, which don't have 
>> those tunables supported yet. It will be a problem for us to test 
>> those "stub" func then.
>
> You might also look at eri, which is now a GLDv3 driver. :-)  I'd not 
> worry too much about nge, it has other issues.  bge and e1000g are 
> good candidates though.
>
For IPG tunables, I think they are useful in reducing collision rate on 
a half-duplex media. But with 1000M links and above, they are seldom 
works under half-duplex mode, unless a broken cable or so. So it seems 
to me these parameters are not as useful today as they were in the past.

I searched bug's database and found the latest bug regarding IPG was 
quite a long time ago(not s10 days even), which makes me think this 
feature is not heavily used by customer already.

Please advice.

Thanks,

Raymond