From owner-freebsd-current Thu Jun 24 14: 0:47 1999 Delivered-To: freebsd-current@freebsd.org Received: from flood.ping.uio.no (flood.ping.uio.no [129.240.78.31]) by hub.freebsd.org (Postfix) with ESMTP id 6F33B14C10 for ; Thu, 24 Jun 1999 14:00:44 -0700 (PDT) (envelope-from des@flood.ping.uio.no) Received: (from des@localhost) by flood.ping.uio.no (8.9.3/8.9.1) id XAA61996; Thu, 24 Jun 1999 23:00:31 +0200 (CEST) (envelope-from des) To: Bruce Evans Cc: green@unixhelp.org, Doug@gorean.org, freebsd-current@FreeBSD.ORG Subject: Re: New ATA stuff, questions and comment References: <199906241859.EAA19555@godzilla.zeta.org.au> From: Dag-Erling Smorgrav Date: 24 Jun 1999 23:00:30 +0200 In-Reply-To: Bruce Evans's message of "Fri, 25 Jun 1999 04:59:39 +1000" Message-ID: Lines: 35 X-Mailer: Gnus v5.5/Emacs 19.34 Sender: owner-freebsd-current@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG Bruce Evans writes: > >controller wdc0 at isa? port IO_WD1 irq 14 flags 0xa0ffa0ff > > > >Will enable DMA mode with the old driver. It doesn't support UDMA on > >all chipsets (e.g. ALI), and in some cases may give very poor > > Not e.g. ALI (Aladdin IV/V) (unless the ALI support is broken). Excerpts from dmesg on an ASUSTek Super Socket 7 motherboard with a 350 MHz AMD K6-2, running yesterday's -CURRENT: pcib0: on motherboard pci0: on pcib0 chip0: at device 0.0 on pci0 pcib1: at device 1.0 on pci0 pci1: on pcib1 chip1: at device 3.0 on pci0 ide_pci0: irq 0 at device 15.0 on pci0 wdc0 at port 0x1f0-0x1f7 irq 14 flags 0xa0ffa0ff on isa0 wdc0: unit 0 (wd0): , DMA, 32-bit, multi-block-16 wd0: 9641MB (19746720 sectors), 19590 cyls, 16 heads, 63 S/T, 512 B/S wdc1 at port 0x170-0x177 irq 15 flags 0xa0ffa0ff on isa0 wdc1: unit 0 (wd2): , DMA, 32-bit, multi-block-16 wd2: 2014MB (4124736 sectors), 4092 cyls, 16 heads, 63 S/T, 512 B/S The IBM disk is an UDMA model. UDMA is disabled in the BIOS setup utility because of symptoms previously described on -current. It works fine in UDMA mode with sos' new atapi driver, btw. The Seagate drive is an old DMA-only (no UDMA) model. DES -- Dag-Erling Smorgrav - des@flood.ping.uio.no To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message