From: Jeff Garzik <jeff@garzik.org>
To: Daniel Barkalow <barkalow@iabervon.org>
Cc: Linas Vepstas <linas@austin.ibm.com>,
Shane Huang <chunhao.huang@hotmail.com>,
davem@davemloft.net, gregkh@suse.de, htejun@gmail.com,
brice.goglin@gmail.com, david.gaarenstroom@gmail.com,
linux-kernel@vger.kernel.org, linux-pci@atrey.karlin.mff.cuni.cz,
shane.huang@amd.com, linux-ide@vger.kernel.org,
Brice Goglin <brice@myri.com>
Subject: Re: [patch] PCI: disable MSI on more ATI NorthBridges
Date: Tue, 23 Oct 2007 06:15:03 -0400 [thread overview]
Message-ID: <471DC9A7.3080105@garzik.org> (raw)
In-Reply-To: <Pine.LNX.4.64.0710221700120.32497@iabervon.org>
Daniel Barkalow wrote:
> I have a device that supports MSI and INTX-disable, and, with MSI on (and
> delivering interrupts successfully) also sends legacy interrupts (on
> the IRQ that is no longer associated with the device) unless INTX is
> disabled. Without the intx_disable(), the kernel disables the IRQ
> entirely and breaks a random other device in my system.
That sort of behavior is an example of why I wrote pci_intx() in the
first place, and employed it by default throughout the ATA drivers
(before it migrated into PCI core).
Jeff
next prev parent reply other threads:[~2007-10-23 10:15 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-10-19 13:17 [patch] PCI: disable MSI on more ATI NorthBridges Shane Huang
[not found] ` <9783dadb0710190706i499b4edbh9736019b0384f9b1@mail.gmail.com>
2007-10-19 14:10 ` Fwd: " David Gaarenstroom
2007-10-19 19:57 ` Linas Vepstas
2007-10-19 20:21 ` Jeff Garzik
2007-10-20 22:03 ` Benjamin Herrenschmidt
2007-10-22 20:26 ` Daniel Barkalow
2007-10-22 20:41 ` Jeff Garzik
2007-10-22 21:31 ` Daniel Barkalow
2007-10-22 23:48 ` Krzysztof Halasa
2007-10-23 0:13 ` David Miller
2007-10-23 5:52 ` Daniel Barkalow
2007-10-23 9:39 ` Shane Huang
2007-10-23 10:01 ` Jeff Garzik
2007-10-23 10:06 ` David Miller
2007-10-24 2:46 ` David Miller
2007-10-23 10:15 ` Jeff Garzik [this message]
2007-10-22 23:40 ` Krzysztof Halasa
2007-10-22 23:58 ` David Miller
2007-10-23 10:13 ` Jeff Garzik
2007-10-20 14:50 ` Shane Huang
2007-10-20 20:52 ` David Gaarenstroom
2007-10-21 6:00 ` Shane Huang
2007-10-23 10:56 ` Shane Huang
2007-10-24 2:41 ` David Miller
2007-10-24 6:53 ` Greg KH
-- strict thread matches above, loose matches on Subject: below --
2007-10-18 9:14 Shane Huang
2007-10-18 10:19 ` David Miller
2007-10-18 10:37 ` Shane Huang
2007-10-18 11:46 ` David Miller
2007-10-18 15:24 ` Greg KH
2007-10-19 17:42 ` Daniel Barkalow
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