netdev - Re: tc adding two filters with different protocols

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Date:	Thu, 15 Nov 2012 16:04:41 +0100
From:	Nieścierowicz Adam <adam.niescierowicz@...tnet.pl>
To:	Netdev <netdev@...r.kernel.org>
Subject: Re: tc adding two filters with different protocols

Hi,

anyone can help, or explain what i do wrong?

W dniu 12.11.2012 20:45, Nieścierowicz Adam napisał(a):

> Hello,
>
> writes the qos where i want classify traffic for two protocol: ip and
> pppoe. Example below
>
> ---
> tc qdisc del root dev eth2
> tc qdisc add dev eth2 root handle 1: htb
> tc class add dev eth2 parent 1:0 classid 1:1 htb rate 500Mbit ceil
> 500Mbit
>
> tc filter add dev eth2 parent 1:0 prio 5 protocol ip u32
> tc filter add dev eth2 parent 1:0 prio 5 handle 9: protocol ip u32
> divisor 256
> tc filter add dev eth2 protocol ip parent 1:0 prio 5 u32 ht 800:: 
> match
> ip dst 172.16.0.0/22 hashkey mask 0x000000ff at 16 link 9:
>
> tc filter add dev eth2 parent 1:0 prio 6 protocol ppp_ses u32
> tc filter add dev eth2 parent 1:0 prio 6 handle 4a: protocol ppp_ses
> u32 divisor 256
> tc filter add dev eth2 protocol ppp_ses parent 1:0 prio 6 u32 ht 
> 800::
> match ip dst 31.41.209.0/24 at 24 hashkey mask 0x000000ff at 24 link 
> 4a:
> ---
>
> Unfortunately, when you add lines "tc filter add dev eth2 protocol
> ppp_ses parent 1:0 prio 6 u32 ht 800:: match ip dst 31.41.209.0/24 at 
> 24
> hashkey mask 0x000000ff at 24 link 4a:" protocol change to ip
>
> command "tc -s -d filter show dev eth2" shows
> ---
> filter parent 1: protocol ip pref 5 u32
> filter parent 1: protocol ip pref 5 u32 fh 9: ht divisor 256
> filter parent 1: protocol ip pref 5 u32 fh 800: ht divisor 1
> filter parent 1: protocol ip pref 5 u32 fh 800::800 order 2048 key ht
> 800 bkt 0 link 9: (rule hit 557082 success 0)
> match ac100000/fffffc00 at 16 (success 267341 )
> hash mask 000000ff at 16
> filter parent 1: protocol ip pref 5 u32 fh 800::801 order 2049 key ht
> 800 bkt 0 link 4a: (rule hit 557039 success 0)
> match 1f29d100/ffffff00 at 24 (success 0 )
> hash mask 000000ff at 24
> filter parent 1: protocol ppp_ses pref 6 u32
> filter parent 1: protocol ppp_ses pref 6 u32 fh 4a: ht divisor 256
> filter parent 1: protocol ppp_ses pref 6 u32 fh 801: ht divisor 1
> ---
> if i change order and first protocol is ppp_ses the hashkey for ip
> protocol is changed to ppp_ses.
>
> Is this correct behavior and I do something wrong?
>
> Thanks
> Adam N.
>
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