From owner-svn-src-all@FreeBSD.ORG Mon Nov 23 01:05:27 2009 Return-Path: Delivered-To: svn-src-all@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id AE68A1065670 for ; Mon, 23 Nov 2009 01:05:27 +0000 (UTC) (envelope-from joerg@britannica.bec.de) Received: from www.sonnenberger.org (www.sonnenberger.org [92.79.50.50]) by mx1.freebsd.org (Postfix) with ESMTP id 705078FC12 for ; Mon, 23 Nov 2009 01:05:27 +0000 (UTC) Received: from britannica.bec.de (www.sonnenberger.org [192.168.1.10]) by www.sonnenberger.org (Postfix) with ESMTP id BC78C6665E for ; Mon, 23 Nov 2009 02:05:24 +0100 (CET) Received: by britannica.bec.de (Postfix, from userid 1000) id D27AB15C3F; Mon, 23 Nov 2009 02:05:11 +0100 (CET) Date: Mon, 23 Nov 2009 02:05:11 +0100 From: Joerg Sonnenberger To: svn-src-all@freebsd.org Message-ID: <20091123010511.GA14572@britannica.bec.de> References: <200911222050.nAMKoRYh029141@svn.freebsd.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <200911222050.nAMKoRYh029141@svn.freebsd.org> User-Agent: Mutt/1.5.20 (2009-06-14) Subject: Re: svn commit: r199670 - head/sys/dev/bge X-BeenThere: svn-src-all@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: "SVN commit messages for the entire src tree \(except for " user" and " projects" \)" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 23 Nov 2009 01:05:27 -0000 On Sun, Nov 22, 2009 at 08:50:27PM +0000, Pyun YongHyeon wrote: > Log: > Fix two long standing bugs on bge(4). Most pre BCM5755 controllers > have a DMA bug when buffer address crosses a multiple of the 4GB > boundary(e.g. 4GB, 8GB, 12GB etc). Does this only affect transfers that *cross* a 4GB boundary or does it also affect transfers that *end* at a 4GB boundary? E.g. if the mbuf cluster starts at 0xffffff00 with size 0x100 -- will the DMA engine stall happen or not? Joerg