This NIC (000:01:00.0) is supported (Intel XL710). I assume that I can use VFIO 
instead of UIO. UIO is really bad from a security perspective.

I think its the "cannot create new DMA window, error 22" which is the first 
indicator of the problem.

Daniel

-----"Wiles, Keith" <keith.wi...@intel.com> wrote: -----
To: Daniel Waddington <daniel.wadding...@ibm.com>
From: "Wiles, Keith" <keith.wi...@intel.com>
Date: 01/09/2019 02:52PM
Cc: "dev@dpdk.org" <dev@dpdk.org>
Subject: Re: [dpdk-dev] DPDK on IBM Power9


> On Jan 9, 2019, at 4:25 PM, Daniel Waddington <daniel.wadding...@ibm.com> 
> wrote:
> 
> Hi,
> I'm trying to run DPDK 18.11 on IBM Power9.  Should it run?  (I'n new to DPDK 
> on Power). 
> Thx,
> Daniel
> Below is what I get:
> 
> $ sudo ./examples/ethtool/ethtool-app/ppc_64-power8-linuxapp-gcc/app/ethtool 
> --iova-mode=pa -c7 -w 0000:01:00.0
> EAL: Detected 128 lcore(s)
> EAL: Detected 2 NUMA nodes
> EAL: Multi-process socket /var/run/dpdk/rte/mp_socket
> EAL: Probing VFIO support...
> EAL: VFIO support initialized
> EAL: PCI device 0000:01:00.0 on NUMA socket 0
> EAL:   probe driver: 8086:1583 net_i40e
> EAL:   using IOMMU type 7 (sPAPR)
> EAL:   cannot create new DMA window, error 22 (Invalid argument)
> EAL: Could not create new DMA window
> EAL:   0000:01:00.0 DMA remapping failed, error 22 (Invalid argument)
> EAL: Requested device 0000:01:00.0 cannot be used
> Number of NICs: 0
> EAL: Error - exiting with code: 1
>  Cause: No available NIC ports!
> 

>From the message above you need support NIC for DPDK is all or you a NIC needs 
>to be bound to something like igb_uio for linux. I have never run DPDK on 
>power before and not sure what is next other then using a supported NIC.

> 
> 

Regards,
Keith


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