From mboxrd@z Thu Jan  1 00:00:00 1970
From: Alan <alan@lxorguk.ukuu.org.uk>
Subject: Re: [PATCH] libata: waits up to 10 microseconds for early irq
 problem
Date: Tue, 28 Nov 2006 14:12:00 +0000
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To: Mark Lord <mlord@pobox.com>
Cc: Tejun Heo <htejun@gmail.com>, albertl@mail.com, albertcc@tw.ibm.com, Jeff Garzik <jeff@garzik.org>, Linux IDE <linux-ide@vger.kernel.org>, matthieu castet <castet.matthieu@free.fr>, Tobias Powalowski <t.powa@gmx.de>

On Tue, 28 Nov 2006 09:00:44 -0500
Mark Lord <mlord@pobox.com> wrote:

> Alan, I confess that I really don't understand this example (below).
> Can you try again, with something concrete enough for a rusty old
> IDE hacker to understand?

The asynchronocity isn't at the IDE level - its at the PCI bus level. The
IRQ path between a PCI card and the CPU is not synchronous to I/O cycles.

Alan