From owner-freebsd-amd64@FreeBSD.ORG Sat Jun 5 06:46:41 2010 Return-Path: Delivered-To: freebsd-amd64@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 343F01065672; Sat, 5 Jun 2010 06:46:41 +0000 (UTC) (envelope-from fbsdmail@dnswatch.com) Received: from fast.dnswatch.com (fast.dnswatch.com [168.103.150.11]) by mx1.freebsd.org (Postfix) with ESMTP id D1EB98FC08; Sat, 5 Jun 2010 06:46:40 +0000 (UTC) Received: from www.dnswatch.com (localhost.dnswatch.com [127.0.0.1]) by fast.dnswatch.com (8.14.2/8.14.2) with ESMTP id o556kXYW065345; Fri, 4 Jun 2010 23:46:39 -0700 (PDT) (envelope-from fbsdmail@dnswatch.com) Received: from udns.ultimatedns.net ([168.103.150.20]) (DNSwatchWebMail authenticated user infos) by www.dnswatch.com with HTTP; Fri, 4 Jun 2010 23:46:39 -0700 (PDT) Message-ID: In-Reply-To: <4C09E783.9090007@FreeBSD.org> References: <83a931b7eb25b24c7bcc6396724d9c39.dnswclient@www.dnswatch.com> <4C09E783.9090007@FreeBSD.org> Date: Fri, 4 Jun 2010 23:46:39 -0700 (PDT) From: fbsdmail@dnswatch.com To: "Alexander Motin" User-Agent: DNSwatchWebMail/1.5.2 [SVN] MIME-Version: 1.0 Content-Type: text/plain;charset=iso-8859-1 Content-Transfer-Encoding: 8bit Cc: freebsd-amd64@freebsd.org Subject: Re: why does UATA/133 == UATA/100 on amd64? X-BeenThere: freebsd-amd64@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Porting FreeBSD to the AMD64 platform List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 05 Jun 2010 06:46:41 -0000 On Fri, June 4, 2010 10:58 pm, Alexander Motin wrote: > Peter Jeremy wrote: > >> On 2010-Jun-04 16:36:08 -0700, fbsdmail@dnswatch.com wrote: >> >>> After _finally_ making the correct decisions to install amd64 on an >>> AMD64 system. I was able to make/build/install world && kernel, I see >>> a difference in drive recognition. >> >> Can you please do a verbose boot and post the resultant dmesg somewhere >> (preferably with your USB DVD drive connected). >> >> >>> kernel: ata3-master: pio=PIO4 wdma=WDMA2 udma=UDMA133 cable=40 wire >>> kernel: ad6: 476940MB at ata3-master >>> SATA300 >>> >> >>> kernel: ata3-master: pio=PIO4 wdma=WDMA2 udma=UDMA133 cable=40 wire >>> kernel: ad6: setting UDMA100 >>> kernel: ad6: 476940MB at ata3-master >>> UDMA100 >>> SATA 3Gb/s >>> >> >> The 'UDMA' numbers are meaningless for SATA controllers/drives. >> > > The 'UDMA' numbers are meaningless for _native_ SATA controllers/drives. > > > They may be not meaningless for legacy SATA devices, using SATA->PATA > bridge inside. Some bridges do not support UDMA133 on PATA part, so ata(4) > prefers not to use it. But in this case it is indeed meaningless. If it's not already apparent. The board has an AMD 880G chipset, that provides RAID support on 6 ports @ 6GBs. Now, from a purely logistical standpoint. The numbers _can't_ be meaningless. It's clear that the kernel is making a "judgment call" here: kernel: ad6: setting UDMA100 The "judgment call" on both GENERIC/i386, and GENERIC/amd64 was never made. The capability of both the port && the drive were accepted. Both cases were booted using "verbose" (5). Please understand, I'm not attempting to be argumentative here. I just observe this to be true. In other words; it must have _some_ meaning - no? Thanks for taking the time to respond, Alexander. --Chris > > -- > Alexander Motin > _______________________________________________ > freebsd-amd64@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-amd64 > To unsubscribe, send any mail to "freebsd-amd64-unsubscribe@freebsd.org" > > -- kern: FreeBSD 8.1-PRERELEASE amd64 MB: MSI 880GMA-E45 (socket: AM3) CPU: AMD Phenom X3 440 (3 core) @3.5Ghz RAM: 2 4Gb CORSAIR DDR3 DualChannel PC1600