Re: [LARTC] how to add my own traffic scheduler to TC

2004-03-04 Thread Kennedy Cheng 
Thanks Roy, I found the answers. I didn't know I had to modify the kernel QoS
library (which I did) as well as the iproute2 library (which I didn't). It is
working now :)

Thanks,
Kennedy


Roy wrote:

 TC is like iptables, you need to add suport to tc binary for your module,
 else you wont be able to configure it.
 I dont know how to do this , but try to find some analogy with other modules
 you will need to modify tc makefile, and add aditional module.

 - Original Message -
 From: Kennedy Cheng [EMAIL PROTECTED]
 To: [EMAIL PROTECTED]
 Sent: Wednesday, March 03, 2004 5:17 PM
 Subject: [LARTC] how to add my own traffic scheduler to TC

  What are the steps needed to add my own traffic scheduler to
  TC?
 
  My understanding is that I need to do something in the net/sched/
  directory: add a schedular eg sch_blue.c, change the Makefile, config.in
  and sch_api.c; add the appropriate qopt, xstats struct... in the
  include/linux/pkt_sched.h. I've got it all compiled without warnings or
  error. When I typed ''tc add dev eth0 root blue limit 1000kB..'', it
  complained ''Unknown qdisc ''blue'', hence option ''limit'' is
  unparsable''.
  When I typed ''tc add dev eth0 root red limit 1000kB.'', it worked
  fine (of course).
 
  The code I wrote was a complete copy of the sch_red.c, with text changed
  to blue instead of red. TC is not happy with my blue scheduler. What
  have I done wrong? Have I missed something?
 
  Linux Kernel version 2.4.20-8
 
  Many Thanks,
  Kennedy
 
 
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[LARTC] classless to classless qdisc

2004-03-04 Thread Kennedy Cheng 
Is it possible to link 2 classless qdiscs in serial? For example, red
as the root qdisc, with fifo as the child qdisc?

Thanks,
Kennedy


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[LARTC] how to add my own traffic scheduler to TC

2004-03-03 Thread Kennedy Cheng 
What are the steps needed to add my own traffic scheduler to TC?

My understanding is that I need to do something in the net/sched/
directory: add a schedular eg sch_blue.c, change the Makefile, config.in
and sch_api.c; add the appropriate qopt, xstats struct... in the
include/linux/pkt_sched.h. I've got it all compiled without warnings or
error. When I typed tc add dev eth0 root blue limit 1000kB.., it
complained Unknown qdisc blue, hence option limit is unparsable.
When I typed tc add dev eth0 root red limit 1000kB., it worked
fine (of course).

The code I wrote was a complete copy of the sch_red.c, with text changed
to blue instead of red. TC is not happy with my blue scheduler. What
have I done wrong? Have I missed something?

Linux Kernel version 2.4.20-8

Many Thanks,
Kennedy


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