Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S271395AbTG2Lue (ORCPT ); Tue, 29 Jul 2003 07:50:34 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S271402AbTG2Lue (ORCPT ); Tue, 29 Jul 2003 07:50:34 -0400 Received: from firewall.mdc-dayton.com ([12.161.103.180]:994 "EHLO firewall.mdc-dayton.com") by vger.kernel.org with ESMTP id S271395AbTG2Lud (ORCPT ); Tue, 29 Jul 2003 07:50:33 -0400 From: "Kathy Frazier" To: "Roland Dreier" Cc: Subject: RE: DMA not supported with Intel ICH4 I/O controller? Date: Tue, 29 Jul 2003 08:01:53 -0500 Message-ID: MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook IMO, Build 9.0.2416 (9.0.2910.0) X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Importance: Normal In-Reply-To: <52brvegyrf.fsf@topspin.com> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1245 Lines: 37 Roland, Thanks for your response! >It sounds like your board is acting as a PCI bus master. This is >completely different from DMA for the IDE controller. External PCI That's correct, we are a PCI bus master device. >The BIOS on the P4PE may be setting >your device up differently from the 815E motherboard. Your device >might be confusing the BIOS on the P4PE so that the IRQ routing >information (eg in ACPI tables) is screwed up. And so on. With respect to the IRQ routing: If the routing was messed up, wouldn't this mean that no IRQs would get through on that device? We are getting some . . . >However, I have not heard of any generic problems with external PCI >bus masters and the ICH4. . . . thanks for the feedback. Regards, Kathy - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/ - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/