RE: [Xen-devel] [PATCH][ioemu] support the assignment of the VF of Intel 82599 10GbE Controller

["Rose, Gregory V" <gregory.v.rose@xxxxxxxxx>]

The 82576 does not need this patch.  It's PCIe capability structure in the 
Virtual Function devices is set up correctly.

- Greg 

-----Original Message-----
From: xen-devel-bounces@xxxxxxxxxxxxxxxxxxx 
[mailto:xen-devel-bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of Cui, Dexuan
Sent: Tuesday, August 04, 2009 6:56 PM
To: Simon Horman
Cc: xen-devel@xxxxxxxxxxxxxxxxxxx; Ian Jackson
Subject: RE: [Xen-devel] [PATCH][ioemu] support the assignment of the VF of 
Intel 82599 10GbE Controller

Hi Simon,
I didn't test 82576 myself, but I think it doesn't need such a change per its 
datasheet.

Thanks,
-- Dexuan



-----Original Message-----
From: Simon Horman [mailto:horms@xxxxxxxxxxxx] 
Sent: 2009?8?4? 8:04
To: Cui, Dexuan
Cc: Ian Jackson; xen-devel@xxxxxxxxxxxxxxxxxxx
Subject: Re: [Xen-devel] [PATCH][ioemu] support the assignment of the VF of 
Intel 82599 10GbE Controller

On Fri, Jul 31, 2009 at 10:16:46PM +0800, Cui, Dexuan wrote:
> The datasheet is available at
> http://download.intel.com/design/network/datashts/82599_datasheet.pdf
> 
> See 'Table 9.7. VF PCIe Configuration Space' of the datasheet, the PCI
> Express Capability Structure of the VF of Intel 82599 10GbE Controller looks
> trivial, e.g., the PCI Express Capabilities Register is 0, so the Capability
> Version is 0 and pt_pcie_size_init() would fail.
> 
> We should not try to expose the PCIe cap of the device to guest.
> 
> Signed-off-by: Dexuan Cui <dexuan.cui@xxxxxxxxx>

Hi Dexuan,

is a similar change needed for the 82576?


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