[LARTC] Limit for prio value

[LARTC] Limit for prio value

[Vinod Chandran]

Hi all,

I am using htb for traffic classification.
Is there a limit to the value prio can take cos when I give the 
following command .

tc class add dev eth2 classid 1:22 parent 1:2 htb rate 500Kbit ceil 
1000Kbit prio 8

and then  check the output,  I find that the prio of 1:22 is 7, same 
case for other values above 7.

Thanks,
Vinod C



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Re: [LARTC] Limit for prio value

[Vinod Chandran]

Hi all,

While surfing the code I happened to land on the following piece of code 
in the file net/sched/sch_htb.c.

if ((cl->un.leaf.prio = hopt->prio) >= TC_HTB_NUMPRIO)
                        cl->un.leaf.prio = TC_HTB_NUMPRIO - 1;

NUMPRIO is defined to eight, hence I feel the behavior.
I will be trying to change this value, still any idea behind this logic.

Thanks,
Vinod  C


Vinod Chandran wrote:

> Hi all,
>
> I am using htb for traffic classification.
> Is there a limit to the value prio can take cos when I give the 
> following command .
>
> tc class add dev eth2 classid 1:22 parent 1:2 htb rate 500Kbit ceil 
> 1000Kbit prio 8
>
> and then  check the output,  I find that the prio of 1:22 is 7, same 
> case for other values above 7.
>
> Thanks,
> Vinod C
>
>
>
> _______________________________________________
> LARTC mailing list
> LARTC@mailman.ds9a.nl
> http://mailman.ds9a.nl/cgi-bin/mailman/listinfo/lartc
>

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