From owner-freebsd-current@FreeBSD.ORG Sat May 6 15:23:11 2006 Return-Path: X-Original-To: freebsd-current@freebsd.org Delivered-To: freebsd-current@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id A420416A401; Sat, 6 May 2006 15:23:11 +0000 (UTC) (envelope-from nox@saturn.kn-bremen.de) Received: from gwyn.kn-bremen.de (gwyn.kn-bremen.de [212.63.36.242]) by mx1.FreeBSD.org (Postfix) with ESMTP id 9B97043D48; Sat, 6 May 2006 15:23:09 +0000 (GMT) (envelope-from nox@saturn.kn-bremen.de) Received: from gwyn.kn-bremen.de (gwyn [127.0.0.1]) by gwyn.kn-bremen.de (8.13.4/8.13.4/Debian-3sarge1) with ESMTP id k46FN8kg029438 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NOT); Sat, 6 May 2006 17:23:08 +0200 Received: from saturn.kn-bremen.de (uucp@localhost) by gwyn.kn-bremen.de (8.13.4/8.13.4/Submit) with UUCP id k46FN824029436; Sat, 6 May 2006 17:23:08 +0200 Received: from saturn.kn-bremen.de (nox@localhost [127.0.0.1]) by saturn.kn-bremen.de (8.13.3/8.13.1) with ESMTP id k46FL05Y033801; Sat, 6 May 2006 17:21:00 +0200 (CEST) (envelope-from nox@saturn.kn-bremen.de) Received: (from nox@localhost) by saturn.kn-bremen.de (8.13.3/8.13.1/Submit) id k46FL0L8033800; Sat, 6 May 2006 17:21:00 +0200 (CEST) (envelope-from nox) From: Juergen Lock Date: Sat, 6 May 2006 17:20:59 +0200 To: Igor Kovalenko Message-ID: <20060506152059.GA33481@saturn.kn-bremen.de> Mail-Followup-To: Igor Kovalenko , freebsd-emulation@freebsd.org, freebsd-current@freebsd.org, Gleb Smirnoff References: <20060427203718.GA15953@saturn.kn-bremen.de> <445241DE.9020909@mail.ru> <20060428221142.GA11504@saturn.kn-bremen.de> <44530C50.6040902@mail.ru> <20060430004646.GA70632@saturn.kn-bremen.de> <4458277F.4010902@mail.ru> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <4458277F.4010902@mail.ru> User-Agent: Mutt/1.4.2.1i X-Mailman-Approved-At: Sat, 06 May 2006 15:25:54 +0000 Cc: freebsd-emulation@freebsd.org, freebsd-current@freebsd.org, Gleb Smirnoff Subject: re(4) (was: Re: playing with qemu's 8139 nic and FreeBSD (loopback mode missing?)) X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 06 May 2006 15:23:11 -0000 [Cc'ing glebius@ because he did most of the recent re(4) commits, and -current in case possible other driver developers didn't see this thread in -emulation] On Wed, May 03, 2006 at 07:46:07AM +0400, Igor Kovalenko wrote: > Juergen Lock wrote: > > On Sat, Apr 29, 2006 at 10:48:48AM +0400, Igor Kovalenko wrote: > >> Juergen Lock wrote: > >>> On Fri, Apr 28, 2006 at 08:25:02PM +0400, Igor Kovalenko wrote: > >>>> Juergen Lock wrote: > >>>>> I played with > >>>>> qemu -monitor stdio -m 256 -cdrom 6.1-RC1-i386-disc1.iso -usb -soundhw es1370 -kernel-kqemu -net nic,model=rtl8139 -net user > >>>>> and got it as far as > >>>>> re0: diagnostic failed, failed to receive packet in loopback mode > >>>>> (followed by a panic :) with the (experimental) patches below. > >>>>> > >>>>> Anyone in the mood to implement loopback mode for this nic? > >>>>> > >>>>> Hmm actually... I just found the original posting in the archive, > >>>>> is C+ mode implemented now? If not re is probably not what I want, > >>>> The rtl8139 is set up with PCI rev ID 0x20 which should be enough for OS driver > >>>> to detect C+ mode features. C+ mode is OK, tested with Linux driver. > >>> Cool, so I want FreeBSD's re driver. That one checks TxConfig > >>> tho, as changed in my patch (inside #if 0). And when changed, > >>> it still doesn't work as mentioned above because the driver expects > >>> loopback mode to be working. > >>>>> but the rl driver that it attaches without that #if 0'd (now) hunk > >>>>> below doesnt seem to be able to get data thru either and I get > >>>>> rl0: watchdog timeout > >>>>> in dmesg, which usually means the driver doesnt receive interrupts. > >>>>> > >>>>> What the heck, I'll append a log of a run just doing in fixit->cdrom: > >>>>> ifconfig rl0 10.0.2.15 > >>>>> and then exiting (which is enough to trigger the watchdog timeout...) > >>>>> > >>>> I'm too lasy to test with fresh freebsd installation :) > >>> No need to install FreeBSD, you can get away by just using > >>> fixit mode of an install iso, i.e. disc1. (which actually is > >>> what I did above. :) > >>> > >>> You can look at 6.1RC's re driver here: > >>> http://www.freebsd.org/cgi/cvsweb.cgi/src/sys/dev/re/if_re.c?annotate=1.46.2.14 > >>> which includes: > >>> http://www.freebsd.org/cgi/cvsweb.cgi/src/sys/pci/if_rlreg.h?annotate=1.51.2.3 > >>> > >>> And 6.1RC disc1 iso is e.g. here: > >>> ftp://ftp.ru.freebsd.org:/pub/FreeBSD/ISO-IMAGES-i386/6.1/6.1-RC1-i386-disc1.iso > >>> > >>> > >> Thanks, that iso pointer made it. > >> > > :) > > > >> Please try the following on top of your patch, at least ping should now work: > > > > Thanks, that seems to get the rl driver going. Now to fix C+ mode > > (re driver) change the #if 0 in my patch to #if 1... > > > > > > I believe freebsd re driver is somewhat broken, e.g. it does not follow documented > procedure to detect hardware features (e.g. 8139 c+ mode) Hmm, a bit of googling didn't reveal docs about this, do you have a pointer? (I only found the data sheet at http://people.freebsd.org/~wpaul/RealTek/spec-8139cp(150).pdf which doesnt seem to mention detecting c+ hardware specifically) > and in tries to use 8169 > registers (e.g. 0xda) on 8139 hardware etc. Oh, then it must have mis-detected the nic as a 8169 because the code in question reads: if (sc->rl_type == RL_8169) CSR_WRITE_2(sc, RL_MAXRXPKTLEN, 16383); > > Therefore some action from driver people is needed; I can provide a patch which > enables board timer in rtl8139 emulation (and thus enables hardware timeout > events) if you need it. Yeah I guess that would be useful...