lists  /  announce  owl-users  owl-dev  john-users  john-dev  passwdqc-users  yescrypt  popa3d-users  /  oss-security  kernel-hardening  musl  sabotage  tlsify  passwords  /  crypt-dev  xvendor  /  Bugtraq  Full-Disclosure  linux-kernel  linux-netdev  linux-ext4  linux-hardening  PHC 
Open Source and information security mailing list archives
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Date:	Wed, 30 May 2007 12:10:01 -0400
From:	jamal <>
To:	Patrick McHardy <>
Subject: Re: [RFC NET_SCHED 00/02]: Flexible SFQ flow classification

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.


> > 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 :)

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. 


To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to
More majordomo info at

Powered by blists - more mailing lists