From mboxrd@z Thu Jan 1 00:00:00 1970 From: Bastian Bittorf Subject: Re: [PATCH] b43: Increase number of RX DMA slots Date: Wed, 20 Feb 2013 09:15:38 +0100 Message-ID: <20130220081538.GO8730@medion.lan> References: <20130219.005206.397289032011003833.davem@davemloft.net> <5123BCFF.5090408@lwfinger.net> <20130219.131553.787630407148880340.davem@davemloft.net> <5123C43D.2020602@lwfinger.net> <512437FA.2030105@lwfinger.net> <5124782D.3050803@lwfinger.net> Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-15 Content-Transfer-Encoding: QUOTED-PRINTABLE Cc: =?iso-8859-15?Q?G=E1bor?= Stefanik , Julian Calaby , David Miller , 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 To: Larry Finger Return-path: Content-Disposition: inline In-Reply-To: <5124782D.3050803-tQ5ms3gMjBLk1uMJSBkQmQ@public.gmane.org> Sender: linux-wireless-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org List-Id: netdev.vger.kernel.org * Larry Finger [20.02.2013 08:32]: > On 02/20/2013 12:26 AM, G=E1bor Stefanik wrote: > > > >Is this an issue that vendor drivers are also vulnerable to? If it i= s > >a firmware issue, I would certainly think so. >=20 > 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. =20 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 -- To unsubscribe from this list: send the line "unsubscribe linux-wireles= s" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html