From: Larry Finger <Larry.Finger@lwfinger.net>
To: Michael Buesch <mb@bu3sch.de>
Cc: bcm43xx-dev@lists.berlios.de,
John W Linville <linville@tuxdriver.com>,
Tim Gardner <tim.gardner@canonical.com>,
linux-wireless@vger.kernel.org
Subject: Re: [PATCH] b43legacy: Fix failure in rate-adjustment mechanism
Date: Sat, 06 Sep 2008 13:52:53 -0500 [thread overview]
Message-ID: <48C2D185.4000003@lwfinger.net> (raw)
In-Reply-To: <200809062041.06035.mb@bu3sch.de>
Michael Buesch wrote:
> On Saturday 06 September 2008 20:34:02 Larry Finger wrote:
>> A coding error present since b43legacy was incorporated into the
>> kernel has prevented the driver from using the rate-setting mechanism
>> of mac80211. The driver has been forced to remain at a 1 Mb/s rate.
>
> Does version3 firmware have a different bitlayout for the status?
It seems so. I found this because I was not getting any acks back to
net/mac80211/rc80211_pid_algo.c. I then reviewed the V3 specs, found
that bit 0, not bit 1, contained the ack. Test prints confirmed that
result. With this patch, both my BCM4306/2 and BCM4303 reach the
maximum rate. With the current code, 54 Mb/s is not as fast as 36
Mb/s, but at least the algorithm is working.
Larry
next prev parent reply other threads:[~2008-09-06 18:52 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-09-06 18:34 [PATCH] b43legacy: Fix failure in rate-adjustment mechanism Larry Finger
2008-09-06 18:41 ` Michael Buesch
2008-09-06 18:44 ` John W. Linville
2008-09-06 18:52 ` Larry Finger [this message]
2008-09-06 18:55 ` Michael Buesch
2008-09-06 18:57 ` Johannes Berg
2008-09-06 19:04 ` Michael Buesch
2008-09-06 19:36 ` Larry Finger
2008-09-06 19:41 ` Johannes Berg
2008-09-06 19:59 ` Larry Finger
2008-09-06 20:02 ` Johannes Berg
2008-09-06 20:07 ` Michael Buesch
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