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From: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
To: Tejun Heo <htejun@gmail.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>,
	linux-kernel@vger.kernel.org, Jeff Garzik <jeff@garzik.org>,
	linux-ide@vger.kernel.org
Subject: Re: Unknown SATA PIIX PCI device ID 0x29b6
Date: Sat, 8 Mar 2008 23:47:09 +0100 (CET)	[thread overview]
Message-ID: <Pine.LNX.4.64.0803082345000.6749@axis700.grange> (raw)
In-Reply-To: <47D0C9E6.8090301@gmail.com>

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"?

Thanks
Guennadi
---
Guennadi Liakhovetski

  reply	other threads:[~2008-03-08 22:47 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-02-28 22:37 Guennadi Liakhovetski
2008-02-28 22:56 ` Alan Cox
2008-02-28 23:33   ` Guennadi Liakhovetski
2008-03-06  8:39     ` Tejun Heo
2008-03-06 11:57       ` Guennadi Liakhovetski
2008-03-06 18:02         ` Gaston, Jason D
2008-03-06 18:05           ` Jeff Garzik
2008-03-06 18:40             ` Guennadi Liakhovetski
2008-03-07  4:51         ` Tejun Heo
2008-03-08 22:47           ` Guennadi Liakhovetski [this message]
2008-03-09  5:14             ` Tejun Heo
2008-03-09 21:24               ` Guennadi Liakhovetski
2008-03-10  0:50                 ` Tejun Heo
2008-03-10  7:22                   ` Guennadi Liakhovetski
2008-03-10 13:05                     ` Tejun Heo
2008-03-11 10:11                       ` Guennadi Liakhovetski
2008-03-11 10:35                         ` Tejun Heo
2008-03-11 11:13                           ` Guennadi Liakhovetski
2008-03-11 11:37                             ` Tejun Heo
2008-02-29  0:23   ` Felix Miata
2008-02-29  3:50     ` Gaston, Jason D

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