linux-kernel - Re: [patch] PCI: disable MSI on more ATI NorthBridges

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Date:	Sun, 21 Oct 2007 08:03:26 +1000
From:	Benjamin Herrenschmidt <benh@...nel.crashing.org>
To:	Jeff Garzik <jeff@...zik.org>
Cc:	Linas Vepstas <linas@...tin.ibm.com>,
	Shane Huang <chunhao.huang@...mail.com>, davem@...emloft.net,
	gregkh@...e.de, htejun@...il.com, brice.goglin@...il.com,
	david.gaarenstroom@...il.com, linux-kernel@...r.kernel.org,
	linux-pci@...ey.karlin.mff.cuni.cz, shane.huang@....com,
	linux-ide@...r.kernel.org, Brice Goglin <brice@...i.com>
Subject: Re: [patch] PCI: disable MSI on more ATI NorthBridges


On Fri, 2007-10-19 at 16:21 -0400, Jeff Garzik wrote:
> Take a look at tg3.c net driver change 
> 2fbe43f6f631dd7ce19fb1499d6164a5bdb34568 which is a similar situation.
> 
> However, it may turn out that removing the pci_intx() stuff as a
> general 
> rule is easier than quirking these devices, if enough of them turn
> out 
> to have this hardware bug.

We'd have to count how many have this bug vs. how many will emit both
intx and msi unless pci_intx is cleared, and then how many do that
regardless of pci_intx :-)

yuck

Ben.


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