On Wed, 2007-30-05 at 17:27 +0200, Patrick McHardy wrote:
> jamal wrote:

> Sure. The thing I don't like about the predefined hash functions is
> that its unflexible.
> 

agreed.

> > skb->prio as a selector. I think if you removed that it should be fine.
>
> I don't think thats a problem, it needs to point to the correct major
> to have any effect, which can only happen if it is set by the user.
> I would prefer to keep it for consistency with other qdiscs.
> 
> > Another alternative is to create a brand new FQ qdisc and leave the
> > classification to the classifiers.
>
> I created a new classifier to leave classification to the classifiers ..
> Not sure exactly why I would need a new qdisc to do that :)
> 

The caveat/difference with current SFQ is you have allowed the user to
define which queue is selected. It is/was dynamically selected based on
packet header now/before. Thats the main reason i said maybe you
separate the two components totaly. i.e while FQ is useful on its own
and can use other classifiers; a useful classifier IMO for SFQ is one
that rips out the sfq_hash or whatever other schemes used in ESFQ into a
classifier (I suppose then the user can select which hash is used). In
such a classifier you can restore the pertub into it.
I am not sure i made sense.

> > I am almost tempted to say go back and write a qdisc called FQ.
> 
> 
> Funny, last the this came up you suggested to do basically exactly
> what this classifier does, which I thought made sense :)
> 
> http://www.mail-archive.com/netdev@vger.kernel.org/msg06801.html

I am almost sensing i am contradicting myself in that thread;-> It is
hard to tell and i admit to being forgetful - but what i probably meant
is what i said above. 

cheers,
jamal

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