From: Johannes Berg <johannes@sipsolutions.net>
To: Alina Friedrichsen <x-alina@gmx.net>
Cc: linville@tuxdriver.com, linux-wireless@vger.kernel.org
Subject: Re: [PATCH v3] mac80211: Give it some time to do the TSF sync
Date: Tue, 24 Feb 2009 17:45:34 -0800 [thread overview]
Message-ID: <1235526334.28635.2.camel@johannes.local> (raw)
In-Reply-To: <20090225004955.227080@gmx.net> (sfid-20090225_015029_602384_627C04D3)
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On Wed, 2009-02-25 at 01:49 +0100, Alina Friedrichsen wrote:
> Hello Johannes!
>
> > Please elaborate on what this does. This uses the assumption that
> > reset_tsf() makes it start at 0, and that then the hardware won't sync
> > up until N seconds etc.
>
> The ath5k and ath9k drivers do so. If a driver/hardware don't, it
> causes other problems. For example ("iwconfig wlan0 essid new_ibss")
> if the sync isn't done before the first beacon is send and the TSF of
> the old IBSS-Network was higher the the TSF of the new one, so the all
> nodes of the new network now sync to the higher TSF of the old
> network.
Right. I just want to see an explanation in the code.
johannes
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next prev parent reply other threads:[~2009-02-25 3:32 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-02-21 23:18 [PATCH v3] mac80211: Give it some time to do the TSF sync Alina Friedrichsen
2009-02-24 1:40 ` Johannes Berg
2009-02-25 0:49 ` Alina Friedrichsen
2009-02-25 0:52 ` Alina Friedrichsen
2009-02-25 1:45 ` Johannes Berg [this message]
-- strict thread matches above, loose matches on Subject: below --
2009-02-22 17:19 Alina Friedrichsen
2009-02-23 13:46 ` Kalle Valo
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