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From: Grant Grundler <grundler@parisc-linux.org>
To: "M. Grabert" <xam@cs.ucc.ie>
Cc: parisc-linux@lists.parisc-linux.org
Subject: Re: [parisc-linux] Re: 2.6.4-rc1-pa3 siimage/NS87415 IDE progess (and another mystery)!
Date: Mon, 12 Jul 2004 21:56:32 -0600	[thread overview]
Message-ID: <20040713035632.GA27696@colo.lackof.org> (raw)
In-Reply-To: <20040712185132.GB11805@sal.ucc.ie>

On Mon, Jul 12, 2004 at 07:51:32PM +0100, M. Grabert wrote:
> > If the IDE controller is NOT prefetching data into a local buffer,
> > I don't think it will be able to efficiently burst data across
> > the PCI bus.
> 
> Ah, and you fixed prefetching with the latest patch? Now I understand
> the issue ...

I don't think so. I think I've got the various parts of the IDE
controller to NOT prefetch. You need to read the 87560.pdf file
that is available from the parisc-linux.org Tech Docs page.
Then you'll know as much as I do about this IDE controller.
I'm really clueless about how IDE works internally.

grant
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  reply	other threads:[~2004-07-13  3:56 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-03-09  6:29 [parisc-linux] Results of (IDE) kernel tests with modified io.c M. Grabert
2004-03-09  6:36 ` Randolph Chung
2004-03-09  7:11   ` M. Grabert
2004-03-09  7:29     ` Randolph Chung
2004-03-09 15:26       ` [parisc-linux] 2.6.4-rc1-pa3 siimage/NS87415 IDE progess (and another mystery)! M. Grabert
2004-07-11 22:18         ` [parisc-linux] " Grant Grundler
2004-07-11 22:48           ` M. Grabert
2004-07-11 23:14           ` Randolph Chung
2004-07-11 23:34             ` Randolph Chung
2004-07-12  0:12               ` Grant Grundler
2004-07-12  3:37               ` M. Grabert
2004-07-12  4:19                 ` M. Grabert
2004-07-12 16:14                   ` Grant Grundler
2004-07-12 18:51                     ` M. Grabert
2004-07-13  3:56                       ` Grant Grundler [this message]
2004-07-13  5:59                         ` Grant Grundler
2004-07-12 19:44                     ` Alan Cox
2004-07-12 16:05                 ` Grant Grundler
2004-07-12 18:39                   ` M. Grabert
2004-07-12 18:50                     ` Randolph Chung
2004-07-13  4:17                     ` Grant Grundler
2004-07-11 23:34             ` Grant Grundler
2004-03-09 18:38       ` [parisc-linux] Results of (IDE) kernel tests with modified io.c Grant Grundler
2004-03-09 15:25     ` John David Anglin

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