Ipipe-Patch for kernel version 5.4.23

Lange Norbert norbert.lange at andritz.com
Mon Mar 2 17:11:57 CET 2020



> -----Original Message-----
> From: Jan Kiszka <jan.kiszka at siemens.com>
> Sent: Montag, 2. März 2020 16:59
> To: Lange Norbert <norbert.lange at andritz.com>
> Subject: Re: Ipipe-Patch for kernel version 5.4.23
>
> NON-ANDRITZ SOURCE: BE CAUTIOUS WITH CONTENT, LINKS OR
> ATTACHMENTS.
>
>
> Offlist by intention?

Nope, just Outlook hating me.

Norbert

>
> Jan
>
> On 02.03.20 16:26, Lange Norbert wrote:
> >
> >
> >> -----Original Message-----
> >> From: Xenomai <xenomai-bounces at xenomai.org> On Behalf Of Jan
> Kiszka
> >> via Xenomai
> >> Sent: Montag, 2. März 2020 13:38
> >> To: Ralf Moder <ralf.moder at hbkworld.com>; xenomai at xenomai.org
> >> Subject: Re: Ipipe-Patch for kernel version 5.4.23
> >>
> >> NON-ANDRITZ SOURCE: BE CAUTIOUS WITH CONTENT, LINKS OR
> ATTACHMENTS.
> >>
> >>
> >> On 02.03.20 11:00, Ralf Moder via Xenomai wrote:
> >>> Hello everyone,
> >>> I need the kernel version 5.4.23 in an embedded linux project because
> of
> >> driver stuff but also the Xenomai extension. How big is the probability
> that an
> >> I-pipe patch for the 5.4 version will be released in the next 2 to 3 months?
> >>
> >> I would first of all say that it's >0. But beyond that, it depends on the
> >> architecture: x86 should be available on 5.4 in the next months with a
> >> probability >>50% as that will be my primary target for looking into how to
> >> move forward. ARM and ARM64 currently lacks a maintainer. If we are
> lucky,
> >> the base enabling via Philippe's dovetail queue will enable those more or
> less
> >> as well. But it will definitely take someone to take responsibility for those
> >> archs because my colleagues and I currently cannot invest beyond
> integrating
> >> contributions. There is also ppc32 (which has a maintainer), but I suppose
> >> that this is not your target.
> >>
> >> Jan
> >
> > I still can't estimate the impact of swapping to dovetail, how much "ripples"
> this will cause.
> > I suppose the cobalt usermode interface will stay the same.
> >
> > -   Will drivers (rtnet) be affected?
> > -   AFAIU there finally will be shared clocks (monotonic, realtime) between
> cobalt and linux?
> >
> > I would of course welcome a 5.4 kernel, allowing me to drop several
> backported patches,
> > at the same time it's not a really good time to swap the basic building blocks
> for us.
> >
> > Norbert
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