linux-kernel - Re: [PATCH] x86: provide a DMI based port 0x80 I/O delay override

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Date:	Sun, 30 Dec 2007 19:14:40 +0100
From:	Rene Herman <rene.herman@...access.nl>
To:	Alan Cox <alan@...rguk.ukuu.org.uk>
CC:	Ingo Molnar <mingo@...e.hu>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	dpreed@...d.com, Islam Amer <pharon@...il.com>, hpa@...or.com,
	Pavel Machek <pavel@....cz>, Ingo Molnar <mingo@...hat.com>,
	Andi Kleen <andi@...stfloor.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Linux Kernel <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] x86: provide a DMI based port 0x80 I/O delay override

On 30-12-07 17:48, Alan Cox wrote:

> For processors with TSC I think we should aim for 2.6.25 to do this and 
> to have the major other _p fixups done. I pity whoever does stuff like 
> the scc drivers but most of the rest isn't too bad.

I'm by the way looking at drivers/net/wd.c which my 386 uses for its dual 
mode NE2000/WD8013 clone ISA NIC and while it specifically needs no delay at 
all it seems, the mixed use of out and outb_p seems to suggest that someone 
once thought about that. Would you advice sticking in a udelay(2) manually 
there?

Rene.
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