From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jeff Garzik Subject: Re: [PATCH] sata_sil: Greatly improve DMA support Date: Sat, 19 May 2007 17:27:13 -0400 Message-ID: <464F6BB1.9050609@garzik.org> References: <464F2D83.6000506@shaw.ca> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: Received: from srv5.dvmed.net ([207.36.208.214]:58223 "EHLO mail.dvmed.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754749AbXESV1Q (ORCPT ); Sat, 19 May 2007 17:27:16 -0400 In-Reply-To: <464F2D83.6000506@shaw.ca> Sender: linux-ide-owner@vger.kernel.org List-Id: linux-ide@vger.kernel.org To: Robert Hancock Cc: linux-kernel , linux-ide@vger.kernel.org Robert Hancock wrote: > 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. rotfl. Boy am I dumb. I -thought- my patch, written months ago, included that bit. But obviously it does not. Let's add that... Jeff