All of lore.kernel.org
 help / color / mirror / Atom feed
From: Jan Kiszka <jan.kiszka@domain.hid>
To: Wolfgang Grandegger <wg@domain.hid>
Cc: xenomai-help <xenomai@xenomai.org>
Subject: Re: [Xenomai-help] your pending RT-Socket-CAN problems (was rtcan driver. rtcan_sja_interrupt made interruptible)
Date: Sun, 11 Mar 2007 22:16:25 +0100	[thread overview]
Message-ID: <45F471A9.1040005@domain.hid> (raw)
In-Reply-To: <45F3F013.5000400@domain.hid>

[-- Attachment #1: Type: text/plain, Size: 729 bytes --]

Wolfgang Grandegger wrote:
> roland Tollenaar wrote:
>> So I really feel your suggestion of working with an (interruptible)
>> service-task and blocking IRQ's is a better approach.
> 
> I agree that it would be nice to have that option and it's already on my
> wish list. Patches are welcome, of course.

Threaded IRQs are no magic bullet. They can only help to push a problem
down the priority ladder, curing a problem symptom where possible.

Nevertheless, threaded IRQs for RTDM are planned. The yet open design
challenge is how to support driver writers best when they have to switch
between both models, e.g. during compile-time (keep in mind, you also
have to switch the locking: spinlock<->mutex).

Jan


[-- Attachment #2: OpenPGP digital signature --]
[-- Type: application/pgp-signature, Size: 250 bytes --]

  parent reply	other threads:[~2007-03-11 21:16 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-03-10 13:55 [Xenomai-help] rtcan driver. rtcan_sja_interrupt made interruptible Roland Tollenaar
2007-03-10 16:34 ` [Xenomai-help] your pending RT-Socket-CAN problems (was rtcan driver. rtcan_sja_interrupt made interruptible) Wolfgang Grandegger
     [not found]   ` <bc4264770703110035g6625e8a1t4f195507d72aaf66@domain.hid>
2007-03-11  9:34     ` Wolfgang Grandegger
2007-03-11 11:02       ` roland Tollenaar
2007-03-11 12:03         ` Wolfgang Grandegger
2007-03-11 12:26           ` roland Tollenaar
2007-03-11 21:16           ` Jan Kiszka [this message]
2007-03-12 18:17             ` roland Tollenaar
2007-03-12 20:01               ` Wolfgang Grandegger
2007-03-12 20:28                 ` [Xenomai-help] RT samples karre
2007-03-12  8:27       ` [Xenomai-help] your pending RT-Socket-CAN problems (was rtcan driver. rtcan_sja_interrupt made interruptible) Sebastian Smolorz
2007-03-12  9:19         ` Wolfgang Grandegger

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=45F471A9.1040005@domain.hid \
    --to=jan.kiszka@domain.hid \
    --cc=wg@domain.hid \
    --cc=xenomai@xenomai.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.