linux-kernel - NVIDIA libata status outdated

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Date:	Wed, 25 Jul 2007 12:14:28 +0200
From:	Zoltan Boszormenyi <zboszor@...aweb.hu>
To:	Jeff Garzik <jgarzik@...ox.com>
Cc:	linux-kernel <linux-kernel@...r.kernel.org>
Subject: NVIDIA libata status outdated

Hi,

it seems your "Libata status" page needs some update.

"

      NVIDIA

Driver name: *sata_nv*

Summary: No TCQ/NCQ in early chipsets. NCQ support added in later 
chipsets. Looks like a PATA controller, but with full SATA control 
including hotplug and PM.

*Update:* NVIDIA has provided information (under NDA) that permits 
implementation of NCQ support, and a sample Linux implementation 
<http://www.kernel.org/pub/linux/kernel/people/jgarzik/libata/archive/2.6.17-nv-adma.patch.bz2> 
(patch) as well. Unfortunately, the patch needs debugging, and no one 
seems to have the time or motivation.

*NOTE:* Newer NVIDIA chipsets are AHCI 
<http://linux-ata.org/driver-status.html#ahci>, and use the ahci driver 
rather than the sata_nv driver.
"

There have been changes since you wrote the above.
ADMA has been incorporated mainstream for a while now
and SWNCQ is now in -mm. AHCI support is obvious.

Best regards,
Zoltán Böszörményi

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