[dpdk-users] [SRIOV][TestPMD][OpenStack] No probed ethernet devices

Chris Paquin cpaquin at redhat.com
Fri Aug 25 00:19:49 CEST 2017

Rami, I misspoke, I was actually told not to use igb_uio as it was old and
was replaced by virtio_pci. I am now seeing that this is not the case.
After compiling 17.08, I was able to successfully bind using igb-uio.

Regarding the kernel params you mention. I did set them, but am used to
those configurations only being used for SR-IOV passthrough on Compute
nodes. Is it also correct to set them in the guest? Or are you actually
talking about the compute node?

FYI - I do have testpdm up and running, now reading through docs and
figuring out how to config.

Thanks for the reply.



Red Hat  <https://www.redhat.com/>

M: 770-906-7646

On Thu, Aug 24, 2017 at 5:56 PM, Rosen, Rami <rami.rosen at intel.com> wrote:

> Chris,
> >(not igb_uio - which I read was deprecated).
> Interesting, can you please give a link to where you read it ?
> Do you have "iommu=pt intel_iommu=on" in the kernel command line ? does
> "cat /proc/cmdline" show it ?
> What does "dmesg | grep -e DMAR -e IOMMU" show ?
> Regards,
> Rami Rosen
> -----Original Message-----
> From: users [mailto:users-bounces at dpdk.org] On Behalf Of Chris Paquin
> Sent: Thursday, August 24, 2017 22:21
> To: users at dpdk.org
> Subject: [dpdk-users] [SRIOV][TestPMD][OpenStack] No probed ethernet
> devices
> Hello. I am trying to get testpmd up and running in a RHEL 7.4 guest (DPDK
> 17.08), however, I am unable to get my interface to bind to a dpdk
> compatible driver.
> [root at localhost ~]# dpdk-devbind --status
> Network devices using DPDK-compatible driver ==============================
> ==============
> <none>
> Network devices using kernel driver
> ===================================
> 0000:00:03.0 'Virtio network device' if=eth0 drv=virtio-pci
> unused=virtio_pci,vfio-pci *Active*
> 0000:00:05.0 '82599 Ethernet Controller Virtual Function' if=eth1
> drv=ixgbevf unused=vfio-pci *Active*
> I am trying to bind the vfio-pci driver (not igb_uio - which I read was
> deprecated).
> I am running into the following error.
> [root at testpmd-vm ~]# dpdk_nic_bind --bind=vfio-pci 0000:00:05.0
> Error: bind failed for 0000:00:05.0 - Cannot bind to driver vfio-pci
> Has anyone seen this before? Can someone confirm that I am attempting to
> bind correctly?

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