From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tejun Heo Subject: Re: Unknown SATA PIIX PCI device ID 0x29b6 Date: Sun, 09 Mar 2008 14:14:35 +0900 Message-ID: <47D3723B.3040700@gmail.com> References: <20080228225603.2764bfd1@core> <47CFADDF.20200@gmail.com> <47D0C9E6.8090301@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Return-path: Received: from rv-out-0910.google.com ([209.85.198.186]:62445 "EHLO rv-out-0910.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751018AbYCIFOm (ORCPT ); Sun, 9 Mar 2008 00:14:42 -0500 Received: by rv-out-0910.google.com with SMTP id k20so722309rvb.1 for ; Sat, 08 Mar 2008 21:14:42 -0800 (PST) In-Reply-To: Sender: linux-ide-owner@vger.kernel.org List-Id: linux-ide@vger.kernel.org To: Guennadi Liakhovetski Cc: Alan Cox , linux-kernel@vger.kernel.org, Jeff Garzik , linux-ide@vger.kernel.org Guennadi Liakhovetski wrote: > On Fri, 7 Mar 2008, Tejun Heo wrote: > >>> Looks like almost a minute to me? On another occurence I see about 1.5 >>> minutes, then "port is slow to respond, please be patient (Status 0x80)" >>> has been repeated 3 times. On cold-plug also 3 times, I think, about the >>> same time then (time is not updated in the log). >> I see. Does the attached patch make any difference? > > diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c > index 4fbcce7..abebdcc 100644 > --- a/drivers/ata/libata-core.c > +++ b/drivers/ata/libata-core.c > @@ -6712,6 +6712,7 @@ int sata_link_init_spd(struct ata_link *link) > spd = (scontrol >> 4) & 0xf; > if (spd) > link->hw_sata_spd_limit &= (1 << spd) - 1; > + link->hw_sata_spd_limit = 1; > > ata_force_spd_limit(link); > > Hm, this would force 1.5Gbps on all ports and devices, right? Cannot I > just boot with "libata.force=4:1.5Gbps"? Yeap, you can do that. Wasn't sure you were using .25-rc or .24. Thanks. -- tejun