Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756863AbYLaVBy (ORCPT ); Wed, 31 Dec 2008 16:01:54 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752805AbYLaVBo (ORCPT ); Wed, 31 Dec 2008 16:01:44 -0500 Received: from lucidpixels.com ([75.144.35.66]:43651 "EHLO lucidpixels.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751957AbYLaVBo (ORCPT ); Wed, 31 Dec 2008 16:01:44 -0500 Date: Wed, 31 Dec 2008 16:01:42 -0500 (EST) From: Justin Piszcz To: Grant Grundler cc: linux-kernel@vger.kernel.org, linux-ide@vger.kernel.org Subject: Re: 2.6.28: Is there a way to disable sata probing for certain ports? In-Reply-To: Message-ID: References: User-Agent: Alpine 1.10 (DEB 962 2008-03-14) MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1655 Lines: 43 On Tue, 30 Dec 2008, Grant Grundler wrote: > On Tue, Dec 30, 2008 at 4:24 AM, Justin Piszcz wrote: >> When I boot from an Intel X25-E SSD, it takes roughly a few seconds; >> however, items such as: >> >> $ dmesg|grep link\ down >> [ 2.447030] ata4: SATA link down (SStatus 0 SControl 300) >> [ 4.481288] ata5: SATA link down (SStatus 0 SControl 0) >> [ 6.501288] ata6: SATA link down (SStatus 0 SControl 0) >> [ 8.522038] ata7: SATA link down (SStatus 0 SControl 0) >> [ 10.552288] ata8: SATA link down (SStatus 0 SControl 0) >> >> Scanning for devices on channels that have nothing connected adds to the >> boot time, is there anyway to turn off/disable scanning for certain ports to >> help speed the boot process? > > Some BIOSs allow one to enable/disable each port individually. > Have you checked the BIOS config menus for such an option? > > drivers/ata/libata-core.c declares "ata_force_param_buf" but I don't > see any documentation for it despite the reference to > Documentation/kernel-parameters.txt . > > hth, > grant > -- > To unsubscribe from this list: send the line "unsubscribe linux-ide" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > Disabling the additional controllers helped a bit but for AHCI on a few boards its all or nothing, AHCI enabled/disabled. Justin. -- 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/