From: Pavel Machek <pavel@ucw.cz>
To: James Ketrenos <jketreno@linux.intel.com>
Cc: "David S. Miller" <davem@davemloft.net>,
vda@ilport.com.ua, abonilla@linuxwireless.org, jgarzik@pobox.com,
netdev@oss.sgi.com, ipw2100-admin@linux.intel.com
Subject: Re: ipw2100: firmware problem
Date: Thu, 9 Jun 2005 23:11:13 +0200 [thread overview]
Message-ID: <20050609211113.GC4173@elf.ucw.cz> (raw)
In-Reply-To: <42A8AE2A.4080104@linux.intel.com>
Hi!
> >I agree.
> >
> >There is a similar problem in the Acenic driver, it brings the
> >link up and receives broadcast packets as soon as the driver
> >is loaded. Mostly this is because the driver inits the chip
> >and registers the IRQ handler at probe time, whereas nearly
> >every other driver does this at ->open() time.
> >
> >
> The ipw2100 originally postponed doing any initialization until open was
> called. The problem at that time was that distributions were crafted to
> rely on link detection (I believe via ethtoolop's get_link) before they
> would bring the interface up.
>
> With a wireless device, you don't have link until you are associated...
> chicken and egg. The solution was to move initialization and
> association to the probe.
>
> I don't know if all the distributions have moved away from this model.
> If they have and the devices are brought up regardless of link, then
> going back to delaying radio initialization until the open() is called
> is workable.
Ook, great, I see.
Pavel
next prev parent reply other threads:[~2005-06-09 21:11 UTC|newest]
Thread overview: 57+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-06-08 14:23 ipw2100: firmware problem Pavel Machek
2005-06-08 14:44 ` Denis Vlasenko
2005-06-08 14:56 ` Jirka Bohac
2005-06-08 16:29 ` Pavel Machek
2005-06-21 7:42 ` Simon Kelley
2005-06-21 8:29 ` Feyd
2005-06-21 8:46 ` Simon Kelley
2005-06-08 15:05 ` Alejandro Bonilla
2005-06-08 15:23 ` Jiri Benc
2005-06-09 6:09 ` Denis Vlasenko
2005-06-09 6:16 ` David S. Miller
2005-06-09 6:25 ` Denis Vlasenko
2005-06-09 6:28 ` David S. Miller
2005-06-09 6:37 ` Denis Vlasenko
2005-06-09 8:36 ` Wichert Akkerman
2005-06-09 10:42 ` Pavel Machek
2005-06-09 19:53 ` David S. Miller
2005-06-09 21:01 ` James Ketrenos
2005-06-09 21:11 ` Pavel Machek [this message]
2005-06-09 21:15 ` Arjan van de Ven
2005-06-09 22:11 ` David S. Miller
2005-06-10 2:13 ` Jeff Garzik
2005-06-10 2:46 ` Alejandro Bonilla
2005-06-10 9:00 ` Pavel Machek
2005-06-10 13:00 ` John Stoffel
2005-06-10 13:33 ` Alejandro Bonilla
2005-06-09 14:31 ` Alejandro Bonilla
2005-06-10 6:56 ` Denis Vlasenko
2005-06-10 13:23 ` Alejandro Bonilla
2005-06-10 20:26 ` Lee Revell
2005-06-10 21:00 ` Alejandro Bonilla
2005-06-10 21:07 ` Lee Revell
2005-06-13 16:42 ` Jan Rychter
2005-06-11 12:44 ` Denis Vlasenko
2005-06-08 17:10 ` James Ketrenos
2005-06-08 19:43 ` David S. Miller
2005-06-08 19:49 ` Dave Jones
2005-06-08 19:54 ` David S. Miller
2005-06-09 6:03 ` Denis Vlasenko
2005-06-09 6:10 ` David S. Miller
2005-06-09 6:17 ` Denis Vlasenko
2005-06-09 6:20 ` David S. Miller
2005-06-09 6:30 ` Denis Vlasenko
2005-06-09 6:35 ` David S. Miller
2005-06-10 3:51 ` Jim Crilly
2005-06-09 6:06 ` Jeff Garzik
2005-06-09 6:13 ` David S. Miller
2005-06-09 6:29 ` Jeff Garzik
2005-06-08 16:58 ` James Ketrenos
2005-06-08 21:27 ` Pavel Machek
2005-06-08 21:46 ` James Ketrenos
2005-06-08 22:34 ` Pavel Machek
2005-06-09 3:33 ` Zhu Yi
2005-06-09 10:56 ` Pavel Machek
2005-06-09 13:56 ` Andi Kleen
2005-06-09 21:12 ` Olivier Galibert
2005-06-09 23:13 ` Jeff Garzik
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