Linux XIA - merge proposal

From: Michel Machado
Date: Tue Mar 03 2015 - 12:48:47 EST


Hi there,

We have been developing Linux XIA, a new network stack that emphasizes evolvability and interoperability, for a couple of years, and it has now reached a degree of maturity that allows others to experiment with it. In addition to the kernel implementation, we have a userland tool to set up the stack, a Wireshark fork with extensions for XIA packets, an implemented solution to interoperate with IPv4 networks, forwarding performance evaluation of our code, support for Linux containers, and an exemplifying demo; all documented on our wiki [1]. Outlining the full benefits of XIA goes beyond the scope of this e-mail, but we present an in-depth discussion on our wiki and in our peer-reviewed academic publications referenced there.

Linux XIA is not yet mature enough for production, but we do think that broader exposure will help us to move forward faster, and get more in tune with the interested community. Thus, we are writing to ask to merge our work into the Linux kernel.

We are aware of all of the effort required to review a large chunk of code, so to lower this burden, we propose to merge our new network stack via staging. This would give time for the community at large to get acquainted with XIA's concepts, and review the code. Of course, we will address feedback as it comes in. We're aware that the current Linux staging process [2] is geared toward drivers and filesystems, but not network stacks. We're fine with clearly marking Linux XIA as being under staging as well as helping to define this review process for network stacks.

Linux XIA is highly confined in its folder net/xia. There are a few headers in folder include/net, but all the names of these headers are of the form xia_*.h. Patches outside these files are minimal. This high isolation is a guarantee that Linux XIA can be dropped out of the kernel with little work if needed.

Finally, there are several other research groups around the world working on other future Internet architectures. We hope that the process of merging Linux XIA will provide a template for these other groups to merge their network stacks into Linux in the future.

Thank you very much for your time,


[1] https://github.com/AltraMayor/XIA-for-Linux/wiki
[2] http://www.kroah.com/log/linux/linux-staging-update.html

--
[ ]'s
Michel Machado
on behalf of the Linux XIA team at Boston University
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