From: Tejun Heo <tj@kernel.org>
To: Michal Suchanek <hramrach@centrum.cz>
Cc: linux-ide@vger.kernel.org
Subject: Re: SATA PMP support
Date: Fri, 20 May 2011 11:25:33 +0200 [thread overview]
Message-ID: <20110520092533.GF31426@htj.dyndns.org> (raw)
In-Reply-To: <BANLkTinCqzDToLGuQVOY_vTLzDBv02tZuA@mail.gmail.com>
On Fri, May 20, 2011 at 11:20:16AM +0200, Michal Suchanek wrote:
> Hello
>
> On 20 May 2011 11:15, Tejun Heo <tj@kernel.org> wrote:
>
> >
> >> [ 3.080341] ahci 0000:00:1f.2: flags: 64bit ncq sntf led clo pio ems sxs
> >
> > But in this case, the above is enough. Your controller doesn't
> > support port multiplier. It doesn't have "pmp" flag set.
>
> So the table at
> https://ata.wiki.kernel.org/index.php/SATA_hardware_features listing
> ICH10 as having CBS PMP support is bogus?
That tables says "ICH10R only". Maybe some other variants too. You
need to consult the datasheets to determine exactly which products
enable which features. It doesn't have much to do with the driver.
It's the hardware controller marked as not supporting port multiplier
mostly thanks to intel's product differentiation.
Thanks.
--
tejun
next prev parent reply other threads:[~2011-05-20 9:25 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-05-19 15:12 SATA PMP support Michal Suchanek
2011-05-19 15:38 ` Tejun Heo
2011-05-20 8:48 ` Michal Suchanek
2011-05-20 9:15 ` Tejun Heo
2011-05-20 9:20 ` Michal Suchanek
2011-05-20 9:25 ` Tejun Heo [this message]
2011-09-13 21:27 ` Michal Suchanek
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