Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1763551AbXESRCS (ORCPT ); Sat, 19 May 2007 13:02:18 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1755650AbXESRCH (ORCPT ); Sat, 19 May 2007 13:02:07 -0400 Received: from shawidc-mo1.cg.shawcable.net ([24.71.223.10]:51268 "EHLO pd2mo3so.prod.shaw.ca" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754746AbXESRCG (ORCPT ); Sat, 19 May 2007 13:02:06 -0400 Date: Sat, 19 May 2007 11:01:55 -0600 From: Robert Hancock Subject: Re: [PATCH] sata_sil: Greatly improve DMA support In-reply-to: To: Jeff Garzik , linux-kernel Cc: linux-ide@vger.kernel.org Message-id: <464F2D83.6000506@shaw.ca> MIME-version: 1.0 Content-type: text/plain; charset=ISO-8859-1; format=flowed Content-transfer-encoding: 7bit References: User-Agent: Thunderbird 2.0.0.0 (Windows/20070326) Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 930 Lines: 23 Jeff Garzik wrote: > Since Alan expressed a desire to see Large Block Transfer (LBT) support > in pata_sil680, I though I would re-post my patch for adding LBT support > to sata_sil. > > Silicon Image's Large Block Transfer (LBT) support is a vendor-specific > DMA scatter/gather engine, which enables 64-bit DMA addresses (where > supported by platform) and eliminates the annoying 64k DMA boundary > found in legacy PCI IDE BMDMA engines. Looks like it doesn't allow 64-bit DMA addresses, it only gets rid of the 64K boundary limitation. -- Robert Hancock Saskatoon, SK, Canada To email, remove "nospam" from hancockr@nospamshaw.ca Home Page: http://www.roberthancock.com/ - 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/