From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261901AbTJRXlE (ORCPT ); Sat, 18 Oct 2003 19:41:04 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261905AbTJRXlE (ORCPT ); Sat, 18 Oct 2003 19:41:04 -0400 Received: from main.gmane.org ([80.91.224.249]:58534 "EHLO main.gmane.org") by vger.kernel.org with ESMTP id S261901AbTJRXlC (ORCPT ); Sat, 18 Oct 2003 19:41:02 -0400 X-Injected-Via-Gmane: http://gmane.org/ To: linux-kernel@vger.kernel.org From: mru@users.sourceforge.net (=?iso-8859-1?q?M=E5ns_Rullg=E5rd?=) Subject: Re: Promise PDC20269 - PIO Only? Date: Sun, 19 Oct 2003 01:40:59 +0200 Message-ID: References: <200310181616.31093.jeremyhu@uclink4.berkeley.edu> Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: 8bit X-Complaints-To: usenet@sea.gmane.org User-Agent: Gnus/5.1002 (Gnus v5.10.2) XEmacs/21.4 (Rational FORTRAN, linux) Cancel-Lock: sha1:wnV7ihxNjgXpIivVgMqh4nDa8WE= Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Jeremy Huddleston writes: > I've been using two Promise PDC20269 cards for almost a year now in > my system. The cards are U133, but when the kernel boots up, I see > the message that all the drives are operating in pio mode. All the > drives are U133 drives, and they are shown as operating in DMA mode > when I put them on another controller. I've got a PDC20268. My boot messages also say PIO. However, it still uses DMA by default. Check with "hdparm /dev/hdX" whether your disks use DMA. -- Måns Rullgård mru@users.sf.net