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From: Bastian Bittorf <bittorf-yxHw+vPQXZDZJqsBc5GL+g@public.gmane.org>
To: Larry Finger <Larry.Finger-tQ5ms3gMjBLk1uMJSBkQmQ@public.gmane.org>
Cc: "Gábor Stefanik"
	<netrolller.3d-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>,
	"Julian Calaby"
	<julian.calaby-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>,
	"David Miller" <davem-fT/PcQaiUtIeIZ0/mPfg9Q@public.gmane.org>,
	David.Laight-JxhZ9S5GRejQT0dZR+AlfA@public.gmane.org,
	linville-2XuSBdqkA4R54TAoqtyWWQ@public.gmane.org,
	linux-wireless-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	netdev-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	bittorf-yxHw+vPQXZDZJqsBc5GL+g@public.gmane.org,
	stable-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	openwrt-devel-ZwoEplunGu0+xA9t4nZiwti2O/JbrIOy@public.gmane.org
Subject: Re: [PATCH] b43: Increase number of RX DMA slots
Date: Wed, 20 Feb 2013 09:15:38 +0100	[thread overview]
Message-ID: <20130220081538.GO8730@medion.lan> (raw)
In-Reply-To: <5124782D.3050803-tQ5ms3gMjBLk1uMJSBkQmQ@public.gmane.org>

* Larry Finger <Larry.Finger-tQ5ms3gMjBLk1uMJSBkQmQ@public.gmane.org> [20.02.2013 08:32]:
> On 02/20/2013 12:26 AM, Gábor Stefanik wrote:
> >
> >Is this an issue that vendor drivers are also vulnerable to? If it is
> >a firmware issue, I would certainly think so.
> 
> I also think so, at least if they are using the firmware version that
> Bastian is using. His logs don't have that info in them, but I
> certainly saw the problem on my BCM4312 using firmware 508.154 from
> 2009.
 
Another test this morning with heavy downloading (but tcp only)
show slot usage auf max 204/256. we are using firmware

"version 666.2 (2011-02-23 01:15:07)" which is OpenWrt's default
for b43. see here the full logs, including minstrel output and dmesg:

http://intercity-vpn.de/files/openwrt/b43test2.dmesg.txt

if a slot needs ~2500 bytes, so 256 slot are only 640kb which seems
ok to me. ofcourse it raises the memory consumption by 500kb, but now
the router is useful 8-)

thank you! bye, bastian

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  parent reply	other threads:[~2013-02-20  8:15 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-02-18  3:01 [PATCH] b43: Increase number of RX DMA slots Larry Finger
     [not found] ` <1361156480-32566-1-git-send-email-Larry.Finger-tQ5ms3gMjBLk1uMJSBkQmQ@public.gmane.org>
2013-02-18 16:18   ` Rafał Miłecki
     [not found]     ` <CACna6rwLgE+o2mcRTemLFAqzdsEoA9Xyx8GyEQTh5qbv1iZ04A-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2013-02-18 16:55       ` Bastian Bittorf
2013-02-18 17:04         ` Larry Finger
2013-02-18 20:10     ` Larry Finger
2013-02-19 20:01       ` Bastian Bittorf
2013-02-19  5:52   ` David Miller
2013-02-19  9:42     ` David Laight
2013-02-19  9:57       ` Rafał Miłecki
2013-02-19 17:57       ` Larry Finger
2013-02-19 18:15         ` David Miller
2013-02-19 18:28           ` Larry Finger
2013-02-20  0:47             ` Julian Calaby
2013-02-20  2:42               ` Larry Finger
     [not found]                 ` <512437FA.2030105-tQ5ms3gMjBLk1uMJSBkQmQ@public.gmane.org>
2013-02-20  6:26                   ` Gábor Stefanik
2013-02-20  7:15                     ` Larry Finger
     [not found]                       ` <5124782D.3050803-tQ5ms3gMjBLk1uMJSBkQmQ@public.gmane.org>
2013-02-20  8:15                         ` Bastian Bittorf [this message]
2013-02-20 15:49                           ` Larry Finger

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