From: Jens Axboe <axboe@suse.de>
To: Jeff Garzik <jgarzik@pobox.com>
Cc: Daniel Drake <dsd@gentoo.org>, Otto Meier <gf435@gmx.net>,
linux-kernel@vger.kernel.org, linux-ide@vger.kernel.org
Subject: Re: Driver for sata adapter promise sata300 tx4
Date: Mon, 1 Aug 2005 22:42:42 +0200 [thread overview]
Message-ID: <20050801204241.GU22569@suse.de> (raw)
In-Reply-To: <42EE87DF.1080508@pobox.com>
On Mon, Aug 01 2005, Jeff Garzik wrote:
> Jens Axboe wrote:
> >Oh, and forget TCQ. It's a completely worthless technology inherited
> >from PATA,
>
> Agreed.
>
> There are a few controllers where we may -eventually- add TCQ support,
> controllers that do 100% of TCQ in hardware. But that's so far down the
> priority list, it's below just about everything else.
>
> There may just be little motivation to -ever- support TCQ, even when
> libata is the 'main' IDE driver, sometime in the future.
Host supported TCQ only removes the pain from the software side, it
still doesn't make it a fast techology. The only reason you would want
to support that would be "it's easy, why not...". From my POV, I would
refuse to support it just from an ideological standpoint :-)
Legacy TCQ, hell no, not in a million years.
--
Jens Axboe
next prev parent reply other threads:[~2005-08-01 20:42 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-08-01 9:19 Driver for sata adapter promise sata300 tx4 Otto Meier
2005-08-01 14:43 ` Daniel Drake
2005-08-01 15:12 ` Otto Meier
2005-08-01 15:28 ` Otto Meier
2005-08-01 16:16 ` Daniel Drake
2005-08-01 20:17 ` Jens Axboe
2005-08-01 20:30 ` Jeff Garzik
2005-08-01 20:35 ` Jens Axboe
2005-08-02 8:18 ` Otto Meier
2005-08-01 20:32 ` Jens Axboe
2005-08-01 20:36 ` Jeff Garzik
2005-08-01 20:42 ` Jens Axboe [this message]
2005-08-01 20:49 ` Jeff Garzik
2005-08-02 6:48 ` Jens Axboe
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