From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753129AbcB2Jma (ORCPT ); Mon, 29 Feb 2016 04:42:30 -0500 Received: from mail1.bemta8.messagelabs.com ([216.82.243.206]:8338 "EHLO mail1.bemta8.messagelabs.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752011AbcB2Jm1 convert rfc822-to-8bit (ORCPT ); Mon, 29 Feb 2016 04:42:27 -0500 X-Greylist: delayed 389 seconds by postgrey-1.27 at vger.kernel.org; Mon, 29 Feb 2016 04:42:27 EST X-Env-Sender: hehy1@lenovo.com X-Msg-Ref: server-15.tower-37.messagelabs.com!1456738543!15896304!1 X-Originating-IP: [103.30.234.44] X-StarScan-Received: X-StarScan-Version: 8.11; banners=-,-,- X-VirusChecked: Checked From: Ocean HY1 He To: "tj@kernel.org" CC: "linux-ide@vger.kernel.org" , "linux-kernel@vger.kernel.org" , Ocean HY1 He Subject: Re: [RFC] AHCI: Remove conflicting Intel Lewisburg 3rd-party SATA RAID device IDs Thread-Topic: [RFC] AHCI: Remove conflicting Intel Lewisburg 3rd-party SATA RAID device IDs Thread-Index: AQHRctOGC3YRYYEGjkeVIuKvxsjPYg== Date: Mon, 29 Feb 2016 09:28:19 +0000 Message-ID: <1456737781-13494-1-git-send-email-hehy1@lenovo.com> References: <20160227112033.GX3965 () htj ! duckdns ! org> In-Reply-To: <20160227112033.GX3965 () htj ! duckdns ! org> Accept-Language: zh-CN, en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [10.96.19.89] Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7BIT MIME-Version: 1.0 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Tejun, According to Intel Lewisburg PCH EDS, SATA RAID controller has two types of DIDs: RSTe RAID and 3rd Party RAID. RSTe RAID shoud be drived by AHCI driver and used to construct MDRAID. These 3rd Party RAID IDs are reserved for other 3rd Party RAID drivers for variety. So, I think it's a bug to let AHCI driver supporting 3rd Party RAID IDs. And it should be ok to remove these existed device IDs. Thanks, Ocean.