[dpdk-dev] BUG: DPDK i40e does not work with VFIO

Stephen Hemminger stephen at networkplumber.org
Fri Nov 6 18:26:08 CET 2015

On Thu, 5 Nov 2015 09:19:25 -0800
Stephen Hemminger <shemming at brocade.com> wrote:

> On my machine, i40e will not startup if using VFIO.
> PMD: rte_i40evf_pmd_init():  >>
> PMD: rte_i40e_pmd_init():  >>
> PMD: eth_i40e_dev_init():  >>
> PMD: i40e_set_symmetric_hash_enable_per_port(): Symmetric hash has already been disabled
> PMD: eth_i40e_dev_init(): Failed to init adminq: -54
> The normal Linux driver works correctly. Firmware has been updated to the latest version.
> Like my earlier experience with fm10k, I suspect that Intel never tests i40e with IOMMU,
> and only tested with igb_uio.

I found the issue. It was a problem with older version of Xen DOM0 patches
which were still outstanding in the internal development package.

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