DPDK 20.11/CentOS7.9, first run -> *FAILED*

[Ruslan R. Laishev]

Hello !


  Since 
http://doc.dpdk.org/guides-16.04/linux_gsg/quick_start.html#linux-setup-script 
  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


[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*
0000:02:06.0 '82545EM Gigabit Ethernet Controller (Copper) 100f' 
if=ens38 drv=e1000 unused=vfio-pci,uio_pci_generic

Other Network devices
=====================
0000:02:05.0 '82545EM Gigabit Ethernet Controller (Copper) 100f' 
unused=e1000,vfio-pci,uio_pci_generic


[root at sysman ~]# dpdk-devbind.py  --bind=vfio-pci  0000:02:05.0
Error: bind failed for 0000:02:05.0 - Cannot bind to driver vfio-pci


[root at sysman ~]# dpdk-devbind.py  --bind=uio_pci_generic   0000:02:05.0
Error: bind failed for 0000:02:05.0 - Cannot bind to driver uio_pci_generic




So, can someone help me to get the DPDK working ?

TIA.