DPDK version 16.x -- Re: DPDK 20.11/CentOS7.9, first run -> *FAILED*

[Gábor LENCSE]

Dear David,

I still use also DPDK 16 (exactly 16.11.11-1+deb9u2 included in Debian 
9), and I have been locked in this version, because I can not compile my 
project under DPDK 18 (included in Debian 10).

I  would be very happy if you (or someone else) could advise me.

My problem description can be found here: 
http://mails.dpdk.org/archives/users/2021-July/005692.html

Best regards,

Gábor

10/14/2021 8:45 PM keltezéssel, David Marchand írta:
> On Thu, Oct 14, 2021 at 1:37 PM Ruslan R. Laishev <zator at yandex.ru> wrote:
>>    Since
>> http://doc.dpdk.org/guides-16.04/linux_gsg/quick_start.html#linux-setup-script
> I am surprised to see you are using a 16.04 version.
>
> I recommend using the latest LTS, i.e. 20.11.
> For this version, the quick start guide is
> https://doc.dpdk.org/guides-20.11/linux_gsg/index.html
>
>
>>    refer to nonexistent SETUP.SH, i walking over the docs an do steps to
>> unsure that DPDK is working at all after installation.
>>
>>    So:
>>
>>
>> [root at sysman ~]# sudo modprobe uio_pci_generic
>> [ 1084.673269] Generic UIO driver for PCI 2.3 devices version: 0.01.0
>>
>> [root at sysman ~]# sudo modprobe vfio-pci
>> [ 1118.429157] VFIO - User Level meta-driver version: 0.3
>>
>> [root at sysman ~]# dpdk-devbind.py  -s
>>
>> Network devices using kernel driver
>> ===================================
>> 0000:02:01.0 '82545EM Gigabit Ethernet Controller (Copper) 100f'
>> if=ens33 drv=e1000 unused=vfio-pci,uio_pci_generic *Active*
>> 0000:02:05.0 '82545EM Gigabit Ethernet Controller (Copper) 100f'
>> if=ens37 drv=e1000 unused=vfio-pci,uio_pci_generic
>> 0000:02:06.0 '82545EM Gigabit Ethernet Controller (Copper) 100f'
>> if=ens38 drv=e1000 unused=vfio-pci,uio_pci_generic
>>
>> [root at sysman ~]# dpdk-devbind.py  --bind=vfio-pci  ens37
>> Error: bind failed for 0000:02:05.0 - Cannot bind to driver vfio-pci
>> Error: unbind failed for 0000:02:05.0 - Cannot open
>> /sys/bus/pci/drivers//unbind
>>
>> [ 1215.157980] vfio-pci: probe of 0000:02:05.0 failed with error -22
>> [ 1215.164317] vfio-pci: probe of 0000:02:05.0 failed with error -22
> If your server has a iommu, you probably did not configure it.
> If you don't have such hw, you need no-iommu support.
>
> https://doc.dpdk.org/guides-20.11/linux_gsg/linux_drivers.html#troubleshooting-vfio
>
>