From mboxrd@z Thu Jan  1 00:00:00 1970
From: "Wiles, Keith" <keith.wiles@intel.com>
Subject: Re: DPDK on IBM Power9
Date: Wed, 9 Jan 2019 23:35:11 +0000
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> On Jan 9, 2019, at 5:22 PM, Daniel Waddington <Daniel.Waddington@ibm.com>=
 wrote:
>=20
> This NIC (000:01:00.0) is supported (Intel XL710). I assume that I can us=
e VFIO instead of UIO. UIO is really bad from a security perspective.
>=20
> I think its the "cannot create new DMA window, error 22" which is the fir=
st indicator of the problem.
>=20
> Daniel
>=20
> -----"Wiles, Keith" <keith.wiles@intel.com> wrote: -----
> To: Daniel Waddington <Daniel.Waddington@ibm.com>
> From: "Wiles, Keith" <keith.wiles@intel.com>
> Date: 01/09/2019 02:52PM
> Cc: "dev@dpdk.org" <dev@dpdk.org>
> Subject: Re: [dpdk-dev] DPDK on IBM Power9
>=20
>=20
>> On Jan 9, 2019, at 4:25 PM, Daniel Waddington <Daniel.Waddington@ibm.com=
> wrote:
>>=20
>> Hi,
>> I'm trying to run DPDK 18.11 on IBM Power9.  Should it run?  (I'n new to=
 DPDK on Power).=20
>> Thx,
>> Daniel
>> Below is what I get:
>>=20
>> $ sudo ./examples/ethtool/ethtool-app/ppc_64-power8-linuxapp-gcc/app/eth=
tool --iova-mode=3Dpa -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!
>>=20
>=20
> 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 DPD=
K on power before and not sure what is next other then using a supported NI=
C.
>=20

Yes you should be able to use VFIO. Did you bind the NIC to VFIO ?

There should be some docs about how that is done.

Beyond this I have not idea?
>>=20
>>=20
>=20
> Regards,
> Keith
>=20
>=20

Regards,
Keith