netdev - Re: can't add tc multiq

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Message-ID: <20090209081553.4a874433@extreme>
Date:	Mon, 9 Feb 2009 08:15:53 -0800
From:	Stephen Hemminger <shemminger@...tta.com>
To:	Badalian Vyacheslav <slavon@...telecom.ru>
Cc:	"netdev@...r.kernel.org" <netdev@...r.kernel.org>
Subject: Re: can't add tc multiq

On Mon, 09 Feb 2009 11:43:26 +0300
Badalian Vyacheslav <slavon@...telecom.ru> wrote:

> Hello all!
> kernel 2.6.28.4
> iproute2 - last git
> Can't use multiq qdisc. How to fix this?
> Thanks!
> 
> slavon ~ # tc qdisc add dev eth0 root handle 1: multiq
> RTNETLINK answers: Invalid argument
> slavon ~ # tc qdisc add dev eth1 root handle 1: multiq
> RTNETLINK answers: Invalid argument
> 
> 
> # lsmod
> Module                  Size  Used by
> sch_multiq              9472  0
> 8021q                  23200  0
> xt_tcpudp               7040  0
> iptable_filter          6784  0
> ip_tables              15120  1 iptable_filter
> x_tables               17028  2 xt_tcpudp,ip_tables
> usbmouse                8064  0
> usbhid                 37728  2
> ehci_hcd               38284  0
> snd_hda_intel         409776  6
> uhci_hcd               26380  0
> snd_pcm                72196  2 snd_hda_intel
> usbcore               133136  7 usbmouse,usbhid,ehci_hcd,uhci_hcd
> snd_timer              23304  2 snd_pcm
> snd_page_alloc         12296  2 snd_hda_intel,snd_pcm
> thermal                19356  0
> snd_hwdep              11140  1 snd_hda_intel
> processor              37024  1 thermal
> i2c_i801               12944  0
> snd                    52516  14 snd_hda_intel,snd_pcm,snd_timer,snd_hwdep
> r8169                  36100  0
> i2c_core               24724  1 i2c_i801
> fglrx                1905884  3
> e1000                 123076  0
> rng_core                8196  0
> mii                     8704  1 r8169
> thermal_sys            15144  2 thermal,processor
> button                 10128  0

You need hardware with multiple transmit queues. Neither e1000 or r8169
has this.
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