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To: Chao Zhu <chaozhu@linux.vnet.ibm.com>, dev@dpdk.org
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From: Olivier Matz <olivier.matz@6wind.com>
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Date: Fri, 20 May 2016 14:11:27 +0200
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Subject: Re: [dpdk-dev] [PATCH v2 6/7] virtio: fix pci accesses for ppc64 in
	legacy mode
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Hi Chao,

On 05/19/2016 11:13 AM, Chao Zhu wrote:
> Olivier,
> 
> Thanks for the patches! 
> Just one comment:
> POWER8 machine only supports little endian OS on bare metal. In VM guest, it
> can support both little endian and big endian OS. Did you try to run it on
> both host (little endian) and guest (big endian and little endian)?

No I didn't test big endian in the guest.

I don't have any big endian VM image. Is it required for the
test? I mean, is it possible to run a big endian DPDK userland
application on a little endian kernel? (and if yes, is it
known to work?)

Maybe I could replace in the patch:
  #ifdef RTE_ARCH_PPC_64
By something like :
  #if defined(RTE_ARCH_PPC_64) && (RTE_BYTE_ORDER == RTE_LITTLE_ENDIAN)

If you have the ability to test it easily, it would be appreciated :)

Thanks for the review!
Olivier