From: Alan <alan@lxorguk.ukuu.org.uk>
To: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Cc: linux-ide@vger.kernel.org, jgarzik@pobox.com, htejun@gmail.com
Subject: Re: [RFC] libata IORDY handling
Date: Sun, 28 Jan 2007 19:03:25 +0000 [thread overview]
Message-ID: <20070128190325.7ba9af66@localhost.localdomain> (raw)
In-Reply-To: <45BCEA03.8070901@ru.mvista.com>
> I looked into fixing this but had a feeling that the thing wasn't right
> from the very start, including ata_pio_need_iordy(). In my understanding of
> the ANSI T13 stadrads, when one issues Set Features subcommand Set Transfer
> Mode with sector count register of 0x8 thru 0xC this means that IORDY *must*
> be enabled.
Yes. It is more complex than the current code handles. That's one reason
I added ata_pio_need_iordy(), because it would need to change and
hardcoding it would be particularly ugly.
This will matter for supporting some utterly ancient junk.
Alan
next prev parent reply other threads:[~2007-01-28 18:51 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-01-28 17:24 [PATCH] pata_sil680: PIO1 taskfile transfers oveclocking fix Sergei Shtylyov
2007-01-28 18:22 ` [RFC] libata IORDY handling Sergei Shtylyov
2007-01-28 19:03 ` Alan [this message]
2007-01-28 19:00 ` Sergei Shtylyov
2007-01-29 13:34 ` Alan
2007-01-29 14:28 ` Sergei Shtylyov
2007-01-29 15:45 ` Alan
2007-01-28 18:41 ` [PATCH] pata_sil680: PIO1 taskfile transfers oveclocking fix Alan
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