linux-kernel - Re: [ANNOUNCE] e1000 to e1000e migration of PCI Express devices

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Message-ID: <87iqyspf7v.fsf@basil.nowhere.org>
Date:	Tue, 08 Apr 2008 16:56:52 +0200
From:	Andi Kleen <andi@...stfloor.org>
To:	Ingo Molnar <mingo@...e.hu>
Cc:	"Kok, Auke" <auke-jan.h.kok@...el.com>,
	Jeff Garzik <jeff@...zik.org>,
	e1000-list <e1000-devel@...ts.sourceforge.net>,
	NetDev <netdev@...r.kernel.org>,
	"Allan, Bruce W" <bruce.w.allan@...el.com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	"David S. Miller" <davem@...emloft.net>,
	"Rafael J. Wysocki" <rjw@...k.pl>,
	Jesse Brandeburg <jesse.brandeburg@...el.com>,
	"Ronciak, John" <john.ronciak@...el.com>,
	Arjan van de Ven <arjan@...ux.intel.com>,
	Greg KH <greg@...ah.com>,
	linux-pci maillist <linux-pci@...ey.karlin.mff.cuni.cz>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: [ANNOUNCE] e1000 to e1000e migration of PCI Express devices

Ingo Molnar <mingo@...e.hu> writes:
>
> ( sidenote: isnt there some facility that selects the "better" driver in 
>   case there is an overlap between PCI IDs - with the ability for users 
>   to override that selection? )

The default action for driver auto loaders in this case is usually to load
all of them unless specially overriden. That is because there are several
cases where one PCI-ID implements multiple functions served by different
drivers. So far there is no really clean solution to this problem and for
e1000 with PCI-E IDs it would do the wrong thing.

-Andi
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