[dpdk-dev] [PATCH] i40e: support xen domain0

[Zhan, Zhaochen]

> i40e was failing to run in XEN domain0, as the physical
> memory for adminq DMA should be allocated and translated
> in a different way for XEN domain0. So
> rte_memzone_reserve_bounded() should be used for DMA
> memory allocation, and rte_mem_phy2mch() should be used
> for DMA memory address translation to support running
> i40e PMD in XEN domain0.
> 
> Signed-off-by: Helin Zhang <helin.zhang at intel.com>

Tested-by: Zhaochen Zhan <zhaochen.zhan at intel.com>

This patch updates i40e to support xen domain0, testpmd can works OK with it.
It is ready to be integrated to dpdk.org.