From owner-freebsd-net@FreeBSD.ORG Tue Dec 8 01:51:03 2009 Return-Path: Delivered-To: freebsd-net@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 003A3106566B for ; Tue, 8 Dec 2009 01:51:02 +0000 (UTC) (envelope-from julian@elischer.org) Received: from outF.internet-mail-service.net (outf.internet-mail-service.net [216.240.47.229]) by mx1.freebsd.org (Postfix) with ESMTP id D9E4A8FC08 for ; Tue, 8 Dec 2009 01:51:02 +0000 (UTC) Received: from idiom.com (mx0.idiom.com [216.240.32.160]) by out.internet-mail-service.net (Postfix) with ESMTP id 73A81BA48; Mon, 7 Dec 2009 17:51:02 -0800 (PST) X-Client-Authorized: MaGic Cook1e X-Client-Authorized: MaGic Cook1e X-Client-Authorized: MaGic Cook1e Received: from julian-mac.elischer.org (h-67-100-89-137.snfccasy.static.covad.net [67.100.89.137]) by idiom.com (Postfix) with ESMTP id 097D12D6016; Mon, 7 Dec 2009 17:51:01 -0800 (PST) Message-ID: <4B1DB10A.5060005@elischer.org> Date: Mon, 07 Dec 2009 17:51:06 -0800 From: Julian Elischer User-Agent: Thunderbird 2.0.0.23 (Macintosh/20090812) MIME-Version: 1.0 To: David Christensen References: <2f7feda40912010931i3cf7d90dmb2a8d08ecd40589f@mail.gmail.com> <5D267A3F22FD854F8F48B3D2B52381933A3169363C@IRVEXCHCCR01.corp.ad.broadcom.com> In-Reply-To: <5D267A3F22FD854F8F48B3D2B52381933A3169363C@IRVEXCHCCR01.corp.ad.broadcom.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: "freebsd-net@freebsd.org" , Rafael Ganascim Subject: Re: bge driver and MSI X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 08 Dec 2009 01:51:03 -0000 David Christensen wrote: >> Can the bge driver use more than one MSI message? If >> possible, what the advantage of this on a SMP system (better >> CPU distribution on interrupts?)? >> [...] >> -- > > MSI is broken on this device (actually all PCI/PCI-X devices > in the 57XX family). The interrupt will be asserted as > expected but masking the interrupt does not work. For those > newer 1Gb PCIe devices that do work correctly with MSI, only > a single message is actually supported. > > Dave Might be a good thing of someone would work up a man page paragraph to this effect.