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Message-ID: <4654DA5E.2050003@gmail.com>
Date: Wed, 23 May 2007 17:20:46 -0700
From: Wayne Sherman <wsherman@...il.com>
To: Ivan Kokshaysky <ink@...assic.park.msu.ru>
CC: Jesse Barnes <jbarnes@...tuousgeek.org>,
linux-kernel@...r.kernel.org
Subject: Re: PCI device problem - MMCONFIG, cannot allocate resource region,
resource collisions
Ivan Kokshaysky wrote:
> No, it won't help. The 1M range (ff500000-ff5fffff) is more than enough.
Good catch, I didn't look close enough at the allocations of the devices
under the bridge.
> The reason why the D-Link resource is not getting assigned is rather
> interesting: as Wayne wrote
>
>> Here is the D-LINK NIC:
>> # od -t x4 /sys/devices/pci0000:00/0000:00:14.4/0000:02:02.0/config
>>
>> 0000000 49011186 80b00117 00000011 00004010
> ^^^^^^
> which means that the device class is 0 (not defined).
> And in drivers/pci/setup-bus.c we have
>
> /* Don't touch classless devices or host bridges or ioapics. */
> if (class == PCI_CLASS_NOT_DEFINED ||
> class == PCI_CLASS_BRIDGE_HOST)
> continue;
>
> The short term fix would be to assign proper device class to D-Link NIC
> using pci quirk...
I would like to try this, where do I find "pci quirk"?
Thanks,
Wayne
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