From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1750888AbWKBFMb (ORCPT ); Thu, 2 Nov 2006 00:12:31 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751007AbWKBFMb (ORCPT ); Thu, 2 Nov 2006 00:12:31 -0500 Received: from srv5.dvmed.net ([207.36.208.214]:31909 "EHLO mail.dvmed.net") by vger.kernel.org with ESMTP id S1750888AbWKBFMa (ORCPT ); Thu, 2 Nov 2006 00:12:30 -0500 Message-ID: <45497E3A.6060103@garzik.org> Date: Thu, 02 Nov 2006 00:12:26 -0500 From: Jeff Garzik User-Agent: Thunderbird 1.5.0.7 (X11/20061008) MIME-Version: 1.0 To: "linux-ide@vger.kernel.org" CC: Linux Kernel , Alan Cox Subject: Promise 20319 chipset specs opened Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Spam-Score: -4.3 (----) X-Spam-Report: SpamAssassin version 3.1.7 on srv5.dvmed.net summary: Content analysis details: (-4.3 points, 5.0 required) Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Promise has given me permission to post hardware programming info for one of their chips (Linux driver: sata_promise), PDC20319. This also marks the first open chipset for Promise (AFAIK), so let's give them a round of applause. The PDC20319 is a reasonably representative example of the hardware programming interface covered by sata_promise. Kernel developers wishing to work on sata_promise can study this doc, and deduce how the two-port PDC2037x chips work. In addition to describing the "packet" format for ATA and ATAPI commands, this doc also describes how to use the chip's XOR RAID-assist features. I think it would be cool if someone so motivated found a way to use this efficiently under Linux. The doc: http://gkernel.sourceforge.net/specs/promise/pdc20319.pdf.bz2 I have also updated the list open chipsets and developer resources on linux-ata.org: http://linux-ata.org/driver-status.html#open_chipsets http://linux-ata.org/devel.html Have fun! Jeff