From: Roland Dreier <rdreier@cisco.com>
To: Petr Vandrovec <petr@vandrovec.name>
Cc: jeff@garzik.org, linux-kernel@vger.kernel.org, akpm@osdl.org
Subject: Re: [PATCH] Unbreak MSI on ATI devices
Date: Thu, 04 Jan 2007 13:59:37 -0800 [thread overview]
Message-ID: <ada4pr61mie.fsf@cisco.com> (raw)
In-Reply-To: <20061221075540.GA21152@vana.vc.cvut.cz> (Petr Vandrovec's message of "Thu, 21 Dec 2006 08:55:40 +0100")
> So my question is - what is real reason for disabling INTX when in MSI mode?
> According to PCI spec it should not be needed, and it hurts at least chips
> listed below:
>
> 00:13.0 0c03: 1002:4374 USB Controller: ATI Technologies Inc IXP SB400 USB Host Controller
> 00:13.1 0c03: 1002:4375 USB Controller: ATI Technologies Inc IXP SB400 USB Host Controller
> 00:13.2 0c03: 1002:4373 USB Controller: ATI Technologies Inc IXP SB400 USB2 Host Controller
heh... I'm not gloating or anything... but I am glad that some ASIC
designer was careless enough to prove me right when I said going
beyond what the PCI spec requires is dangerous.
- R.
next prev parent reply other threads:[~2007-01-04 21:59 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-12-21 7:55 [PATCH] Unbreak MSI on ATI devices Petr Vandrovec
2006-12-21 8:21 ` Jeff Garzik
2006-12-25 4:01 ` Daniel Barkalow
2007-01-04 21:59 ` Roland Dreier [this message]
2007-01-05 9:07 ` Petr Vandrovec
2007-01-06 0:54 ` Daniel Barkalow
2007-01-05 23:57 ` Daniel Barkalow
[not found] <fa.yZrxrHh1AWLcv/+D2xYZ1VhVYb8@ifi.uio.no>
2006-12-21 14:36 ` Robert Hancock
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