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From: Filippo Zangheri <filippo.zangheri@yahoo.it>
To: Zhu Yi <yi.zhu@intel.com>
Cc: "John W. Linville" <linville@tuxdriver.com>,
	linux-wireless@vger.kernel.org,
	ipw3945-devel@lists.sourceforge.net
Subject: Re: [ipw3945-devel] [BUG] iwlwifi 3945 works only	with	disable_hw_scan=1
Date: Fri, 13 Jun 2008 10:48:14 +0200	[thread overview]
Message-ID: <4852344E.7020505@yahoo.it> (raw)
In-Reply-To: <1213342523.7814.865.camel@debian.sh.intel.com>

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Hash: SHA1

Hello everybody.

Zhu Yi ha scritto:
> On Thu, 2008-06-12 at 09:59 -0400, John W. Linville wrote:
>> How does the hardware scan differ from what mac80211 does when
>> scanning?
> 
> Software scan disables Tx during the scan process while hardware scan
> doesn't. So you are expected to see continous ping responds instead of a
> freeze during the scan period. Hardware scan is also more efficient
> since it is handled by the firmware.
> 
>> I still see a lot of mysterious iwlwifi (especially iwl3945)
>> problems in Fedora that seem to disappear with disable_hw_scan=1.
> 
> I don't see this problem from my side. I'll do more testing for 3945.

Me neither. iwl3945's HW scan has always worked properly on my
system. It's a 32bit Core2Duo with latest stable vanilla kernel and
latest compat-wireless driver and mac80211 subsystem.

Never had a single problem with it.

Just a proper-work report.

Thank you for a driver that - at least on my system - is working
great (even from the speed point of view, but that's another topic).


>> Honestly I'm tempted to change it to "enable_hw_scan" instead...
> 
> Give the advantages, I'd like to use it if we can fix the bug (I haven't
> seen what the bug is myself). But you are free to change the default
> value until it is fixed. There is no such problem for 4965, right?


- --
Filippo Zangheri

GPG key ID: 0x6C1F2F2F
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  reply	other threads:[~2008-06-13  8:48 UTC|newest]

Thread overview: 42+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-06-11 15:07 [BUG] iwlwifi 3945 works only with disable_hw_scan=1 Maxim Levitsky
2008-06-12  3:28 ` Zhu Yi
2008-06-12 12:13   ` Maxim Levitsky
2008-06-12 13:59   ` [ipw3945-devel] " John W. Linville
2008-06-12 14:19     ` Maxim Levitsky
2008-06-12 20:25     ` Stephen Clark
2008-06-13  7:35     ` Zhu Yi
2008-06-13  8:48       ` Filippo Zangheri [this message]
2008-06-13 12:37         ` Tor Håkon Haugen
2008-06-13 13:03       ` John W. Linville
2008-06-13 14:59         ` Tor Håkon Haugen
2008-06-13 15:06           ` Maxim Levitsky
2008-06-13 15:09             ` Tor Håkon Haugen
2008-06-13 20:04             ` Tomas Winkler
2008-06-14 10:00               ` Maxim Levitsky
2008-06-14 16:50               ` Luis R. Rodriguez
2008-06-15 13:42               ` Maxim Levitsky
2008-06-15 13:47                 ` Tomas Winkler
2008-06-15 14:12                   ` Maxim Levitsky
2008-06-15 15:09                     ` Tomas Winkler
2008-06-15 16:47                       ` Tomas Winkler
2008-06-16  5:50                         ` Maxim Levitsky
2008-06-16  5:52                           ` Tomas Winkler
2008-06-16  6:08                             ` Maxim Levitsky
2008-06-16  6:46                               ` Maxim Levitsky
2008-06-16  7:11                                 ` Maxim Levitsky
2008-06-16 14:35                               ` Dan Williams
2008-06-16 21:41                                 ` Tomas Winkler
2008-06-18  8:28                             ` drago01
2008-06-24 19:47                               ` John W. Linville
2008-06-24 20:32                                 ` Maxim Levitsky
2008-06-25  5:43                                 ` Tomas Winkler
  -- strict thread matches above, loose matches on Subject: below --
2008-06-11 15:47 Maxim Levitsky
2008-06-12  2:26 ` [ipw3945-devel] " Zhu Yi
2008-06-12  6:42   ` drago01
2008-06-12  7:08     ` Zhu Yi
2008-06-12 12:48   ` Maxim Levitsky
2008-06-12 14:22     ` Maxim Levitsky
2008-06-12 14:26       ` Norbert Preining
2008-06-12 15:02     ` Dan Williams
2008-06-13  2:00       ` Zhu Yi
2008-06-13 14:45         ` Dan Williams
2008-06-16  1:40           ` Zhu Yi

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