From owner-freebsd-current@FreeBSD.ORG Thu Feb 3 20:53:17 2005 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id EF41516A4CE; Thu, 3 Feb 2005 20:53:16 +0000 (GMT) Received: from spider.deepcore.dk (cpe.atm2-0-53484.0x50a6c9a6.abnxx9.customer.tele.dk [80.166.201.166]) by mx1.FreeBSD.org (Postfix) with ESMTP id 2C1EF43D41; Thu, 3 Feb 2005 20:53:16 +0000 (GMT) (envelope-from sos@DeepCore.dk) Received: from [194.192.25.143] (laptop.deepcore.dk [194.192.25.143]) by spider.deepcore.dk (8.12.11/8.12.10) with ESMTP id j13KrBR0003036; Thu, 3 Feb 2005 21:53:13 +0100 (CET) (envelope-from sos@DeepCore.dk) Message-ID: <42028F29.1030801@DeepCore.dk> Date: Thu, 03 Feb 2005 21:52:57 +0100 From: =?ISO-8859-1?Q?S=F8ren_Schmidt?= User-Agent: Mozilla Thunderbird 1.0 (X11/20050116) X-Accept-Language: en-us, en MIME-Version: 1.0 To: "'FreeBSD Current'" , "freebsd-stable@freebsd.org" Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: quoted-printable X-mail-scanned: by DeepCore Virus & Spam killer v1.6 Subject: ATA mkIII first official patches - please test! X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 03 Feb 2005 20:53:17 -0000 ATA-mkIII first official snapshot. This is the much rumoured ATA update that I've been working on for some t= ime. It contains a number of new things, and lacks a few features of the old c= ode. New items include: o ATA is now fully newbus'd and split into modules. This means that on a modern system you just load "atapci and ata= " to get the base support, and then one or more of the device subdrivers "atadisk atapicd atapifd atapist ataraid". All can be loaded/unloaded anytime, but for obvious reasons you dont want to unload atadisk when you have mounted filesystems. o The device identify part of the probe has been rewritten to fix the problems with odd devices the old had, and to try to remove so of the long delays some HW could provoke. o SATA devices can be hot inserted/removed and devices will be crea= ted/ removed in /dev accordingly. NOTE only supported on controllers = that has this feature: Promise and Silicon Image for now. o ATA RAID support has been rewritten and and now supports these metadata formats: "Adaptec HostRAID" "Highpoint V2 RocketRAID" "Highpoint V3 RocketRAID" "Intel MatrixRAID" "Integrated Technology Express" "LSILogic V2 MegaRAID" "LSILogic V3 MegaRAID" "Promise FastTrak" "Silicon Image Medley" o The reinit code has been worked over to be much more robust. o The timeout code has been overhauled for races. o Lots of fixes for bugs found while doing the modulerization and reviewing the old code. Missing features form current ATA: o atapi-cd no longer has support for ATAPI changers. Todays its much cheaper and alot faster to copy those CD images to disk and serve them from there. Besides they dont seem to be made anymore, maybe for that exact reason. o ATA RAID can only read metadata not write them. This means that arrays can be picked up from the BIOS, but they cannot be create= d from FreeBSD. This is being worked on for the final release as i= s RAID5 support for Promise/Highpoing/SiI controllers. o The atapi-cam author has been informed and has had early access to this work but so far atapicam is not supported with these changes. However I do have my own atacam that puts both ATA and = ATAPI devices under CAM, but its really just academic at this point. And then there all the things that I've happily forgotten about :) The snapshot is available as a patch for RELENG_5 and for CURRENT, and a common tarfile of the new ATA code. http://people.freebsd.org/~sos/ata-mk3j.diff-releng5.gz http://people.freebsd.org/~sos/ata-mk3j.diff-current.gz http://people.freebsd.org/~sos/ata-mk3j.tar.gz Both patches and the tarfile is relative to /usr/src. You might want to remove the contents of sys/dev/ata/ before unpacking the tarfile. No changes are needed to your config file, unless you want ATA as modules= =2E As usual, even if it works on all the HW I have here in the lab, thats by= far not the same as it works on YOUR system. So use glowes and safety sho= es and if it breaks I dont want the pieces, but would like to hear the nifty= details on how exactly it got that way :) Enjoy! --=20 -S=F8ren