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From: Tim Waugh <twaugh@redhat.com>
To: "Gérard Roudier" <groudier@club-internet.fr>
Cc: Michael Reinelt <reinelt@eunet.at>,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: Multi-function PCI devices
Date: Sat, 7 Apr 2001 20:00:53 +0100	[thread overview]
Message-ID: <20010407200053.B3280@redhat.com> (raw)
In-Reply-To: <3ACECA8F.FEC9439@eunet.at> <Pine.LNX.4.10.10104071043360.1085-100000@linux.local>
In-Reply-To: <Pine.LNX.4.10.10104071043360.1085-100000@linux.local>; from groudier@club-internet.fr on Sat, Apr 07, 2001 at 11:04:38AM +0200

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On Sat, Apr 07, 2001 at 11:04:38AM +0200, Gérard Roudier wrote:

> Given your description, this board is certainly not a multi-fonction PCI
> device. Multi-function PCI devices provide separate resources for each
> function in a way that allows each function to be driven by separate
> software drivers.

Yes, but the vendor screwed it up (probably to save money).  This is
_very_ common.  It is very unusual to have a multifunction I/O card
that gets this right (in fact Lava is the only one I can think of
off-hand).

> Band-aiding the kernel code in order to cope with such brain-deaded
> hardware would be a pity, in my opinion. Burden must stay where it
> is deserved.

If we have to do this, then Gunther's approach (multifunc_quirks or
whatever) looks a lot better than having a separate driver for every
single multi-IO card.

Tim.
*/

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  parent reply	other threads:[~2001-04-07 19:01 UTC|newest]

Thread overview: 47+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2001-04-07  8:06 Multi-function PCI devices Michael Reinelt
2001-04-07  8:57 ` Jeff Garzik
2001-04-07 10:14   ` Tim Waugh
2001-04-07 18:42     ` PATCH for Broken PCI Multi-IO in 2.4.3 (serial+parport) Gunther Mayer
2001-04-07 18:53       ` Jeff Garzik
2001-04-07 19:06         ` Tim Waugh
2001-04-07 20:24         ` Gunther Mayer
2001-04-07 22:26           ` Jeff Garzik
2001-04-08 20:45         ` Martin Mares
2001-04-19 16:33           ` [patch, take 1] parport_serial (was Re: PATCH for Broken PCI Multi-IO in 2.4.3 (serial+parport)) Tim Waugh
2001-04-07 19:03       ` PATCH for Broken PCI Multi-IO in 2.4.3 (serial+parport) Tim Waugh
2001-04-07 16:22         ` Gérard Roudier
2001-04-07 20:47           ` Gunther Mayer
2001-04-07 19:23         ` Jeff Garzik
2001-04-07 19:31           ` Tim Waugh
2001-04-07 20:21           ` Gunther Mayer
2001-04-07 21:45             ` Tim Waugh
2001-04-07 22:29             ` Jeff Garzik
2001-04-07 20:31           ` Gunther Mayer
2001-04-07 21:52             ` Jeff Garzik
2001-04-07 11:33   ` Multi-function PCI devices Michael Reinelt
2001-04-07 12:16     ` Tim Waugh
2001-04-07 14:06       ` Michael Reinelt
2001-04-07 13:18         ` Gérard Roudier
2001-04-07 18:36           ` Michael Reinelt
2001-04-07 18:44             ` Jeff Garzik
2001-04-08 11:38               ` Michael Reinelt
2001-04-13 22:51                 ` Jeff Garzik
2001-04-14  0:34                   ` Michael Reinelt
2001-04-07 17:23       ` Jeff Garzik
2001-04-07 19:08         ` Tim Waugh
2001-04-07 19:31           ` Jeff Garzik
2001-04-08 10:25           ` Kai Henningsen
2001-04-09 13:15   ` Henning P. Schmiedehausen
2001-04-07  9:04 ` Gérard Roudier
2001-04-07 13:24   ` Brian Gerst
2001-04-07 14:03     ` Michael Reinelt
2001-04-07 13:01       ` Gérard Roudier
2001-04-07 19:14         ` Tim Waugh
2001-04-07 17:26     ` Jeff Garzik
2001-04-07 19:00   ` Tim Waugh [this message]
2001-04-07 19:40     ` Jeff Garzik
2001-04-07 19:52       ` Tim Waugh
2001-04-08 12:05         ` Michael Reinelt
2001-04-08 12:41           ` Tim Waugh
2001-04-07 21:34 ` Linus Torvalds
     [not found] ` <200104072134.OAA11307@penguin.transmeta.com>
2001-04-07 21:58   ` Jeff Garzik

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