netdev - Re: Using HTB over MultiQ

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Date:	Fri, 08 Nov 2013 15:11:34 -0800
From:	John Fastabend <john.r.fastabend@...el.com>
To:	Eric Dumazet <eric.dumazet@...il.com>
CC:	Anton 'EvilMan' Danilov <littlesmilingcloud@...il.com>,
	netdev@...r.kernel.org
Subject: Re: Using HTB over MultiQ

On 11/8/2013 1:56 PM, Eric Dumazet wrote:
> On Fri, 2013-11-08 at 19:53 +0400, Anton 'EvilMan' Danilov wrote:
>
>> Hm.. I think I need another way to classify packets for using of mq
>> qdisc, because it don't support classify at root (not supported error
>> on try attach filter).
>
> I think it might be time to add filters on the device, and run them
> without any lock (rcu protection only)
>
> John, I think you had some previous work ?

Yes, I have a net-next fork with this but I currently introduced a bug
in the u32 classifier. I'll resurrect this next week and send something
out. We can take a look and see if its useful.

>
>> On next week i'll try to write ipset extension for setting of priority
>> and queue_mapping value through the IPSET netfilter target.
>
> Sounds a nice idea as well.
>

Another thought would be to put a netfilter hook above the qdisc and on
ingress (not in the bridge module). I've been meaning to take a look
at nftables I'm not sure how much duplication exists between nftables
and tc classifiers at this point.

>
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