[Xenomai] rtnet in Xenomai 3.0

[Jonas Platte <mail@jonasplatte.de>]

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Hi,

as the title suggests, I am trying to set up rtnet with Xenomai 3.0.

I already partly got rtnet to work with Xenomai 2.6 on a debian
machine with linux 3.4; I will try to get a linux 3.14.x or 3.16
kernel running there tomorrow [when I am at work again], because
cobalt requires at least 3.10 and the rtnet stuff wasn't installed
when I built Xenomai 3.0 for the 3.4 kernel with the mercury core so I
assumed for the moment that mercury core + rtnet isn't supported.

On my arch linux system at home I already tried the same thing though,
where installing a new kernel was simpler, but I wasn't successful.
Apparently, the rtnet tools (the programs rtnet, rtcfg, rtping and so
on) were installed but the kernel modules didn't even get built.

So I have two main questions:

* Is it true that rtnet is only available for the cobalt core?
  [I like to think that it isn't, and if I'm right about that
  I'd be happy to help fixing it. I have a fair amount of experience
  with the GNU build system / autotools.]
* How to build the rtnet kernel module and the rt_* ethernet drivers?
  I feel like I am missing a "make modules" (and "make modules_install")
  somewhere, but I only found automake-generated Makefiles that didn't
  have these targets and the Makefiles in kernel/, which look like they
  should be part of a recursive make call, but I didn't find that
  directory referenced anywhere but in EXTRA_DIST.

Also, a small thing that I might write dedicated email for if whoever
reads until here tells me that would be a good idea to make the right
people notice it:

I'm writing a C++11 (downwards compatibility currently not planned)
wrapper for the Xenomai / rtnet RTDM API. It will be released under
LGPL v3, unless xeno-- project is not as dead as it seems or someone
is willing to revive it (in which case I would love to integrate this
functionality there instead of making it a seperate library); or
someone gives me a good reason to release it under a different license.

Thanks to everyone who worked on porting rtnet to Xenomai 3.0 and
integrating it into the repository!

P.S.: The next email(s) from me will probably not come from this email
address, but from jonas.platte@iwes.fraunhofer.de. In case you want to
contact me directly, please use that address.
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