From owner-freebsd-stable Fri Aug 16 8:11:38 2002 Delivered-To: freebsd-stable@freebsd.org Received: from mx1.FreeBSD.org (mx1.FreeBSD.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 04C1637B400 for ; Fri, 16 Aug 2002 08:11:35 -0700 (PDT) Received: from mail.dt.e-technik.uni-dortmund.de (krusty.dt.E-Technik.Uni-Dortmund.DE [129.217.163.1]) by mx1.FreeBSD.org (Postfix) with ESMTP id 526D043E70 for ; Fri, 16 Aug 2002 08:11:34 -0700 (PDT) (envelope-from matthias.andree@gmx.de) Received: from m2a2.myip.org (localhost [127.0.0.1]) by mail.dt.e-technik.uni-dortmund.de (Postfix) with ESMTP id EB751A3831 for ; Fri, 16 Aug 2002 17:11:32 +0200 (CEST) Received: by merlin.emma.line.org (Postfix, from userid 500) id 262E6536BF; Fri, 16 Aug 2002 17:11:29 +0200 (CEST) To: freebsd-stable@freebsd.org Subject: Re: Unsupported ATA controller - what's needed to make it supported? References: <5.1.0.14.2.20020816234804.00b10018@ocean.hkr.se> In-Reply-To: <5.1.0.14.2.20020816234804.00b10018@ocean.hkr.se> ("J. 'LoneWolf' Mattsson"'s message of "Sat, 17 Aug 2002 00:33:21 +1000") From: Matthias Andree Date: Fri, 16 Aug 2002 17:11:28 +0200 Message-ID: Lines: 23 User-Agent: Gnus/5.090008 (Oort Gnus v0.08) Emacs/21.1 (i686-pc-linux-gnu) MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Sender: owner-freebsd-stable@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG "J. 'LoneWolf' Mattsson" writes: > 1) Have I missed something obvious that's causing this really poor > performance? I already have "hw.ata.wc=1" so that wouldn't be it... I > have my old slow drive on its own channel so as to not slug down my new > drive.. I'm using the "high density" proper ribbon cable for the new > drive.. The ATA controller isn't sharing an IRQ... Anything else? Is my > old P120 simply too old to cope, or what? Well, expect no PIO wonders of a P-120, but DMA should be reasonably fast, like 10 MB/s or somesuch, not just 2 (at least, that's what I get out of a IBM DPTA drive on a PII/266 with PIIX3 with Linux 2.4, which only does mdma2, which I presume is the same as WDMA2). > 2) Not being familiar with the workings of the ata(4) driver or driver > internals in general, what information is needed to make this controller > fully supported? Is it information that I can gather, or is there a need > for vendor specific information? The question is: what FreeBSD version are you currently using? -- Matthias Andree To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message