From: "Yann Rapaport" <yannusonline@yahoo.fr>
To: linux-kernel <linux-kernel@vger.kernel.org>
Subject: Link detection and netlink notification in Linux 2.4
Date: Fri, 27 Aug 2004 15:06:22 +0200 (CEST) [thread overview]
Message-ID: <20040827130622.62816.qmail@web25210.mail.ukl.yahoo.com> (raw)
Hi all kernel users!
I am currently working on implementing link state
detection with netlink notification on a Linux 2.4.24
kernel.
The first solution that comes to my mind is to add a
call to netdev_state_change() inside the
netif_carrier_on() and netif_carrier_off() functions.
But after reading the list archive ab out it, my
understanding is that it is not possible to call
netdev_state_change() at this level. This seems to be
related being or not inside interrupts.
Could anyone explain this to me?
The right solution seems to be a kernel thread that
looks up the device chain and tests the IFF_RUNNING
flag to decide or not to notify netlink. Couldn't this
set a performance problem?
Testing the ETHTOOL_GLINK flag also seems a good idea
to me. Which one is the most generic?
As I understand it, this feature was one of the aims
of the 2.5 kernel. Is it implemented in 2.6? Would you
advise me any piece of code to have a look at?
Thank you in advance.
--
Yann
Vous manquez d’espace pour stocker vos mails ?
Yahoo! Mail vous offre GRATUITEMENT 100 Mo !
Créez votre Yahoo! Mail sur http://fr.benefits.yahoo.com/
Le nouveau Yahoo! Messenger est arrivé ! Découvrez toutes les nouveautés pour dialoguer instantanément avec vos amis. A télécharger gratuitement sur http://fr.messenger.yahoo.com
next reply other threads:[~2004-08-27 13:07 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-08-27 13:06 Yann Rapaport [this message]
2004-08-27 20:00 ` David S. Miller
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=20040827130622.62816.qmail@web25210.mail.ukl.yahoo.com \
--to=yannusonline@yahoo.fr \
--cc=linux-kernel@vger.kernel.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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox
all inboxes | Powered by JetHome®