[dpdk-users] Help with error: *** Did not find any ports to use ***

[David Marchand]

On Mon, Dec 14, 2020 at 8:46 PM Krishnamurthy Srinivasan
<kssrinivasan at google.com> wrote:
>
> I have seen that this error has been brought up before.  However, the
> solutions discussed did not help resolve the error. I would appreciate any
> help.
>
> I am running DPDK version 20.11 with Pktgen 3.7.2 on Ubuntu 20.04/K8s.   My
> server has Intel Ethernet Controller X710 for 10GbE.
>
> Here, I have configured the pod with one interface with igb-uio driver.
> The behavior is the same if I try pci-vfio DPDK driver.   My kubectl
> description shows the network config to be OK:
>

[snip]

>
> root at master-01:~# /opt/dpdk-stable-19.11.3/usertools/dpdk-devbind.py -s |
> more
>
> Network devices using DPDK-compatible driver
> ============================================
> 0000:41:0a.0 'Ethernet Virtual Function 700 Series 154c' drv=vfio-pci
> unused=iavf,igb_uio
> 0000:41:0a.1 'Ethernet Virtual Function 700 Series 154c' drv=vfio-pci
> unused=iavf,igb_uio
> <additional igb-uio devices>
> 0000:41:0a.5 'Ethernet Virtual Function 700 Series 154c' drv=igb_uio
> unused=iavf,vfio-pci
> <additional vfio-pci devices>

Afaics, device 0x8086 / 0x154c is known by the common IAVF code base,
but it is associated with no PCI driver in DPDK.
$ git grep -w IAVF_DEV_ID_VF v20.11 --
v20.11:drivers/common/iavf/iavf_common.c:               case IAVF_DEV_ID_VF:
v20.11:drivers/common/iavf/iavf_devids.h:#define IAVF_DEV_ID_VF
         0x154C

Copying i40e and iavf maintainers, for further guidance.


-- 
David Marchand