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From: Tejun Heo <htejun@gmail.com>
To: Eddie Hung <eddie.hung@gmail.com>
Cc: Mark Lord <liml@rtr.ca>, linux-ide@vger.kernel.org
Subject: Re: CF as IDE on ICH6M using libata
Date: Fri, 07 Sep 2007 02:50:46 +0900	[thread overview]
Message-ID: <46E03DF6.8090405@gmail.com> (raw)
In-Reply-To: <6f9550040709051503k5b0a07b1x3e21bae3667ce17@mail.gmail.com>

Eddie Hung wrote:
> However, I think we can conclude that ICH6M (which on the X41, has a
> SATA-PATA bridge to connect a PATA drive) does not seem to support
> MWDMA

It isn't clear whether the fault is at the driver or the CF device.

> (especially as it is not completely supported under Windows
> either - it is *incredibly* slow but does not give the same timeout
> problems as with libata),

Please verify which mode is in use in Windows.  Just watching cpu usage
in the task manager while transferring data should give you a pretty
good idea.

> nor does libata it drop down gracefully to
> PIO4 when it detects these timeouts.

Yeah, this is a bug to fix.

Thanks.

-- 
tejun

  reply	other threads:[~2007-09-06 17:52 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-09-02 12:42 CF as IDE on ICH6M using libata Eddie Hung
2007-09-02 13:08 ` Tejun Heo
2007-09-02 18:29   ` Eddie Hung
2007-09-03  2:45     ` Tejun Heo
2007-09-03 10:40       ` Eddie Hung
2007-09-03 11:46         ` Tejun Heo
2007-09-03 12:03           ` Eddie Hung
2007-09-03 12:20             ` Eddie Hung
2007-09-03 12:40               ` Tejun Heo
2007-09-03 12:51                 ` Eddie Hung
2007-09-04 18:17                 ` Eddie Hung
2007-09-05 17:28   ` Mark Lord
2007-09-05 22:03     ` Eddie Hung
2007-09-06 17:50       ` Tejun Heo [this message]
     [not found]         ` <6f9550040709061456h6f9a64ebgec9dbe457a836138@mail.gmail.com>
2007-09-07  0:44           ` Tejun Heo
2007-09-07 13:38         ` Mark Lord
2007-09-08  7:10           ` Tejun Heo
2007-09-10 12:18             ` Mark Lord
2007-09-10 18:19     ` Alan Cox
2007-09-10 19:39       ` Mark Lord
2007-09-02 14:04 ` Alan Cox
2007-09-02 18:41   ` Eddie Hung
2007-09-02 18:58     ` Alan Cox
2007-09-02 19:14       ` Eddie Hung

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