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Date: Sat, 02 Feb 2008 15:23:45 -0800
From: Corey Hickey <bugfood-ml@...ooh.org>
To: Patrick McHardy <kaber@...sh.net>,
Linux Netdev List <netdev@...r.kernel.org>
Subject: Re: [NET_SCHED 00/04]: External SFQ classifiers/flow classifier
Patrick McHardy wrote:
> These patches add support for external classifiers to SFQ and add a
> new "flow" classifier, which can do hashing based on user-specified
> keys or deterministic mapping of keys to classes. Additionally there
> is a patch to make the SFQ queues visisble as classes to verify that
> the hash is indeed doing something useful and a patch to consifiy
> struct tcf_ext_map, which I had queued in the same tree.
Excellent! I'm glad this is applied. I'm having trouble figuring out how
it works, though. As a test, I'm trying to set up SFQ equivalent to
ESFQ's "hash dst". Here's what I do, and this is what I get:
------------------------------------------------------------------------
# ./tc qdisc add dev eth0 root handle 1: sfq
# ./tc filter add dev eth0 parent 1: flow hash keys dst
RTNETLINK answers: Invalid argument
We have an error talking to the kernel
------------------------------------------------------------------------
I've tried a few different keys with the same results. I don't know what
I'm doing wrong, or even where to start figuring it out. Can you point
me in the right direction?
Here are some details that may be pertinent:
- current net-2.6 git (I double-checked)
- CONFIG_NET_CLS_FLOW=y
- current iproute2 git
- running on amd64 user-mode Linux
Thanks,
Corey
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