Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753238AbYL3RJE (ORCPT ); Tue, 30 Dec 2008 12:09:04 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751915AbYL3RIw (ORCPT ); Tue, 30 Dec 2008 12:08:52 -0500 Received: from smtp-out.google.com ([216.239.45.13]:50534 "EHLO smtp-out.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751780AbYL3RIv (ORCPT ); Tue, 30 Dec 2008 12:08:51 -0500 DomainKey-Signature: a=rsa-sha1; s=beta; d=google.com; c=nofws; q=dns; h=mime-version:in-reply-to:references:date:message-id:subject:from:to: cc:content-type:content-transfer-encoding: x-gmailtapped-by:x-gmailtapped; b=fXQMCTpHwVjLZ5RTtiC2woRJx7QOHhBtned5Fl9EPVAlTsI1LdGLDOK2DcwzswP1l ReiIfccbGk7JHWxV2YPlw== MIME-Version: 1.0 In-Reply-To: References: Date: Tue, 30 Dec 2008 09:08:46 -0800 Message-ID: Subject: Re: 2.6.28: Is there a way to disable sata probing for certain ports? From: Grant Grundler To: Justin Piszcz Cc: linux-kernel@vger.kernel.org, linux-ide@vger.kernel.org Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-GMailtapped-By: 172.24.198.69 X-GMailtapped: grundler Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1241 Lines: 29 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-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/