Re: [Regression] r8169: enable 64-bit DMA by default for PCIExpress devices (v2)

From: Jörn Engel
Date: Mon Mar 15 2010 - 11:34:10 EST


Forgot to Cc: lkml.

On Mon, 15 March 2010 16:08:06 +0100, Jïrn Engel wrote:
>
> Hello Robert!
>
> Looks like 353176888386d9025062a12dcec08d49af10cf2c broke one of my
> machines. Reverting that patch fixes things again. Machine is
> running an x86_64 kernel. Lspci gives me this:
>
> 01:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8101E/RTL8102E PCI Express Fast Ethernet controller (rev 02)
> Subsystem: ASRock Incorporation Device 8136
> Flags: bus master, fast devsel, latency 0, IRQ 26
> I/O ports at e800 [size=256]
> Memory at fdeff000 (64-bit, prefetchable) [size=4K]
> Memory at fdee0000 (64-bit, prefetchable) [size=64K]
> [virtual] Expansion ROM at fde00000 [disabled] [size=128K]
> Capabilities: [40] Power Management version 3
> Capabilities: [50] MSI: Enable+ Count=1/1 Maskable- 64bit+
> Capabilities: [70] Express Endpoint, MSI 01
> Capabilities: [ac] MSI-X: Enable- Count=2 Masked-
> Capabilities: [cc] Vital Product Data
> Capabilities: [100] Advanced Error Reporting
> Capabilities: [140] Virtual Channel <?>
> Capabilities: [160] Device Serial Number 08-00-00-00-ff-ff-00-00
> Kernel driver in use: r8169
>
> If you have any test patches to try, please send them my way. :)
>
> Jïrn
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