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intelligent CLS kills qemu's 8139cp

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Alexey Dobriyan

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Dec 18, 2009, 8:50:02 AM12/18/09
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After this patch qemu's 8139cp won't be initialized resulting in no network.
It einvals in pci_set_cacheline_size() where pci_cache_line_size=0

PCI: CLS 0 bytes, default 32

ac1aa47b131416a6ff37eb1005a0a1d2541aad6c is first bad commit
commit ac1aa47b131416a6ff37eb1005a0a1d2541aad6c
Author: Jesse Barnes <jba...@virtuousgeek.org>
Date: Mon Oct 26 13:20:44 2009 -0700

PCI: determine CLS more intelligently
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Jesse Barnes

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Dec 18, 2009, 12:30:02 PM12/18/09
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On Fri, 18 Dec 2009 15:49:18 +0200
Alexey Dobriyan <adob...@gmail.com> wrote:

> After this patch qemu's 8139cp won't be initialized resulting in no
> network. It einvals in pci_set_cacheline_size() where
> pci_cache_line_size=0
>
> PCI: CLS 0 bytes, default 32
>
> ac1aa47b131416a6ff37eb1005a0a1d2541aad6c is first bad commit
> commit ac1aa47b131416a6ff37eb1005a0a1d2541aad6c
> Author: Jesse Barnes <jba...@virtuousgeek.org>
> Date: Mon Oct 26 13:20:44 2009 -0700
>
> PCI: determine CLS more intelligently

My for-linus branch has

commit 2820f333e3b4ad96590093efbed7b3400bcf492b
Author: Csaba Henk <cs...@gluster.com>
Date: Tue Dec 15 17:55:25 2009 +0530

PCI: Handle case when no pci device can provide cache line size hint

which may fix this issue. You can grab my tree from
git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6

Jesse

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Jesse Barnes, Intel Open Source Technology Center

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