From: Alan Cox <alan@lxorguk.ukuu.org.uk>
To: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Cc: Russell King <rmk+lkml@arm.linux.org.uk>,
linux-ide@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: 2.6.15-rc1: IDE: fix potential data corruption with SL82C105 interfaces
Date: Mon, 15 May 2006 16:25:16 +0100 [thread overview]
Message-ID: <1147706716.26686.64.camel@localhost.localdomain> (raw)
In-Reply-To: <446890F0.3020408@ru.mvista.com>
On Llu, 2006-05-15 at 18:32 +0400, Sergei Shtylyov wrote:
> Heh, this driver also tries to cache the single PCI register per-channel
> like hpt366.c... This buglet concerns using fast PIO timings and is probably
> harmless though but needs to be fixed -- I'll send a patch soon...
> I wonder what is otherwise wrong with using 2 channels concurrently?
I've not got any dual channel devices to test, and in fact I couldn't
find anyone with dual channel stuff at all. The caching is one bug, the
fact the reset hits both channels is the other I know about.
Otherwise the libata driver is fairly similar although the timing is
pre-computed from the documentation for the DMA modes.
Alan
next prev parent reply other threads:[~2006-05-15 15:12 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-11-12 16:55 2.6.15-rc1: IDE: fix potential data corruption with SL82C105 interfaces Russell King
2005-11-12 18:03 ` Alan Cox
2005-11-12 17:46 ` Russell King
2006-05-15 14:32 ` Sergei Shtylyov
2006-05-15 15:25 ` Alan Cox [this message]
2006-05-15 16:05 ` Sergei Shtylyov
2006-05-15 16:35 ` Alan Cox
2006-05-15 17:10 ` Russell King
2005-11-15 13:27 ` Bartlomiej Zolnierkiewicz
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