mactel-linux-devel

[Mactel-linux-devel] ahci for macbook

[Matteo C. <roo...@ya...>]

Hi, what about enabling AHCI mode for the controller with this patch: 
http://teknoraver.campuslife.it/software/mac-ahci.diff
and get noticeable speed improvements like these? 
http://teknoraver.campuslife.it/bench/ata_piix_vs_ahci.pdf

Cheers,
Matteo

Re: [Mactel-linux-devel] ahci for macbook

[Soeren S. <mac...@nn...>]

On Sun, 2007-05-06 at 23:23 +0200, Matteo Croce wrote:
> Hi, what about enabling AHCI mode for the controller with this patch: 
> http://teknoraver.campuslife.it/software/mac-ahci.diff
> and get noticeable speed improvements like these? 
> http://teknoraver.campuslife.it/bench/ata_piix_vs_ahci.pdf

well, I did not see any speedup-gain when using this... so I am not
convinced this is useful.

Soeren

Re: [Mactel-linux-devel] ahci for macbook

[Pierre T. <ta...@gm...>]

Actually, this may solve the suspend problem we have with ata_piix driver.
Does you Mac manage to suspend with either mode?

Pierre


2007/5/6, Soeren Sonnenburg <mac...@nn...>:
> On Sun, 2007-05-06 at 23:23 +0200, Matteo Croce wrote:
> > Hi, what about enabling AHCI mode for the controller with this patch:
> > http://teknoraver.campuslife.it/software/mac-ahci.diff
> > and get noticeable speed improvements like these?
> > http://teknoraver.campuslife.it/bench/ata_piix_vs_ahci.pdf
>
> well, I did not see any speedup-gain when using this... so I am not
> convinced this is useful.
>
> Soeren
>
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-- 
-- 
Pierre

Re: [Mactel-linux-devel] ahci for macbook

[Soeren S. <mac...@nn...>]

On Wed, 2007-05-09 at 11:01 +0200, Pierre Tardy wrote:
> Actually, this may solve the suspend problem we have with ata_piix driver.
> Does you Mac manage to suspend with either mode?

yes. (I am on 2.6.21)

if it does not for you bug the ide people about it.

Soeren.

Re: [Mactel-linux-devel] ahci for macbook

[Matthew G. <mj...@sr...>]

On Sun, May 06, 2007 at 11:23:57PM +0200, Matteo Croce wrote:
> Hi, what about enabling AHCI mode for the controller with this patch: 
> http://teknoraver.campuslife.it/software/mac-ahci.diff
> and get noticeable speed improvements like these? 
> http://teknoraver.campuslife.it/bench/ata_piix_vs_ahci.pdf

If you want to use AHCI, it would make much more sense to write a DMI 
hack to reprogram Macbook controllers to AHCI mode and then let the 
normal driver loading rules apply. While you can get away with just 
force-loading the ahci driver on Macs, that's not true in general.

-- 
Matthew Garrett | mj...@sr...