[Xenomai-help] Current state of RTDM-native?

[Xenomai-help] Current state of RTDM-native?

[M. Koehrer]

Hi everybody,

by reading the homepage of http://www.osadl.org I was (again) led to the RTDM-native project which
has as target to provide an RTDM port for standard Linux (using the RT Preempt Patch).
Looking at the GNA page http://svn.gna.org/svn/xenomai/branches/rtdm-native 
it seems to be fairly quiet...
My long time "wish" is to have a real time standard linux with a real time capable UDP networking implementation.
For the tasks and the required latency, the RT preempt patch seems to be fine for our application,
however there is currently no way to get a realtime network system running.
Thus, rtnet via RTDM via RT preempt patch seems to be perfect for our needs...

Does anybody knows of some activities on rtdm-native?

Best regards

Mathias

-- 
Mathias Koehrer
mathias_koehrer@domain.hid


Jetzt komfortabel bei Arcor-Digital TV einsteigen: Mehr Happy Ends, mehr Herzschmerz, mehr Fernsehen! Erleben Sie 50 digitale TV Programme und optional 60 Pay TV Sender, einen elektronischen Programmführer mit Movie Star Bewertungen von TV Movie. Außerdem, aktuelle Filmhits und spannende Dokus in der Arcor-Videothek. Infos unter www.arcor.de/tv

Re: [Xenomai-help] [RTnet-users] Current state of RTDM-native?

[Jan Kiszka]

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M. Koehrer wrote:
> Hi everybody,
> 
> by reading the homepage of http://www.osadl.org I was (again) led to the RTDM-native project which
> has as target to provide an RTDM port for standard Linux (using the RT Preempt Patch).
> Looking at the GNA page http://svn.gna.org/svn/xenomai/branches/rtdm-native 
> it seems to be fairly quiet...
> My long time "wish" is to have a real time standard linux with a real time capable UDP networking implementation.
> For the tasks and the required latency, the RT preempt patch seems to be fine for our application,
> however there is currently no way to get a realtime network system running.
> Thus, rtnet via RTDM via RT preempt patch seems to be perfect for our needs...
> 
> Does anybody knows of some activities on rtdm-native?

Wolfgang can answer this best.

Jan


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Re: [Xenomai-help] Current state of RTDM-native?

[Wolfgang Grandegger]

M. Koehrer wrote:
> Hi everybody,
> 
> by reading the homepage of http://www.osadl.org I was (again) led to the RTDM-native project which
> has as target to provide an RTDM port for standard Linux (using the RT Preempt Patch).
> Looking at the GNA page http://svn.gna.org/svn/xenomai/branches/rtdm-native 
> it seems to be fairly quiet...
> My long time "wish" is to have a real time standard linux with a real time capable UDP networking implementation.
> For the tasks and the required latency, the RT preempt patch seems to be fine for our application,
> however there is currently no way to get a realtime network system running.
> Thus, rtnet via RTDM via RT preempt patch seems to be perfect for our needs...
> 
> Does anybody knows of some activities on rtdm-native?

I do not know of any activities, but it should not be a big effort to
get RTnet ported over RTDM-native. As I see it, mainly the build system
of RTnet needs adaption.

Wolfgang.

Re: [Xenomai-help] Current state of RTDM-native?

[M. Koehrer]

Hello Wolfgang, 

> 
> I do not know of any activities, but it should not be a big effort to
> get RTnet ported over RTDM-native. As I see it, mainly the build system
> of RTnet needs adaption.
> 
thanks for your response. That sounds very good.
I can remember, that a long while ago, the interrupt handling was not realized yet with rtdm-native
which is necessary to get rtnet up and running.
Is this implemented now?

Best regards

Mathias


-- 
Mathias Koehrer
mathias_koehrer@domain.hid


Jetzt komfortabel bei Arcor-Digital TV einsteigen: Mehr Happy Ends, mehr Herzschmerz, mehr Fernsehen! Erleben Sie 50 digitale TV Programme und optional 60 Pay TV Sender, einen elektronischen Programmführer mit Movie Star Bewertungen von TV Movie. Außerdem, aktuelle Filmhits und spannende Dokus in der Arcor-Videothek. Infos unter www.arcor.de/tv

Re: [Xenomai-help] Current state of RTDM-native?

[Wolfgang Grandegger]

M. Koehrer wrote:
> Hello Wolfgang, 
> 
>> I do not know of any activities, but it should not be a big effort to
>> get RTnet ported over RTDM-native. As I see it, mainly the build system
>> of RTnet needs adaption.
>>
> thanks for your response. That sounds very good.
> I can remember, that a long while ago, the interrupt handling was not realized yet with rtdm-native
> which is necessary to get rtnet up and running.
> Is this implemented now?

I'm not sure what you mean. RTDM-native has been tested with
RT-Socket-CAN, which uses interrupts, of course.

While reading my old README

http://svn.gna.org/viewcvs/xenomai/branches/rtdm-native/README.rtdm-native?rev=2386&view=auto

I now remember some more quirks, especially with tasks termination,
which might be problematic with RTnet. Maybe a RTDM port over
Xenomai-Solo would be more straight forward, but that's another project.

Wolfgang.