Re: Adding new packet scheduler

On Mon, Oct 20, 2014 at 10:32 AM, Josh Clark [off-list ref] wrote:

Hi everyone,

I'm a student at NC State University, and I'm working on a project to
implement some new classful AQM algorithms and test their
effectiveness. However, I'm getting hung up on how to get the new
algorithm set up in the kernel.

From what I've looked at, it looks like I need to add my code to
/net/sched/, and edit both the Kconfig and the Makefile to be able to
add my code as another module.

Finally, in order to use the new scheduler, I need to select it using
the tc command. What do I need to do to add my algorithm to the tc
command options?

Any insight, articles, READMEs, or criticism you have for me is welcome.

Thank you for all your help!

To give you an idea here are some currently out of tree, out of date,
and highly experimental codel patches of mine
that add in some new qdiscs, and patch the right places, with the
exception of patching include/uapi/linux/pkt_sched.h (which exports
the stuff to userspace)

https://github.com/dtaht/cerowrt-3.10/blob/master/target/linux/generic/patches-3.10/680-codel-add-experimental-codel-and-fq_codel-versions.patch

to add stuff to tc, you patch the iproute2 utility to match what is
exported from pkt_sched.h.

-Josh Clark
--
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html

-- 
Dave Täht

thttp://www.bufferbloat.net/projects/bloat/wiki/Upcoming_Talks