How to resolve "Not all devices in IOMMU group bound to VFIO or unbound" ?

[sysman at scaled.cloud]

Hello!

  I have built and deployed latest DPDK from the git, so:

dpdk-devbind.py -s

Network devices using DPDK-compatible driver
============================================
0000:02:04.0 '82545EM Gigabit Ethernet Controller (Copper) 100f' 
drv=vfio-pci unused=e1000
0000:02:05.0 '82545EM Gigabit Ethernet Controller (Copper) 100f' 
drv=vfio-pci unused=e1000
0000:02:06.0 '82545EM Gigabit Ethernet Controller (Copper) 100f' 
drv=vfio-pci unused=e1000
0000:02:07.0 '82545EM Gigabit Ethernet Controller (Copper) 100f' 
drv=vfio-pci unused=e1000

Network devices using kernel driver
===================================
0000:02:01.0 '82545EM Gigabit Ethernet Controller (Copper) 100f' if=eth0 
drv=e1000 unused=vfio-pci *Active*



./ipv4_multicast
...
EAL: 0000:02:04.0 VFIO group is not viable! Not all devices in IOMMU 
group bound to VFIO or unbound
EAL: Requested device 0000:02:04.0 cannot be used
EAL: 0000:02:05.0 VFIO group is not viable! Not all devices in IOMMU 
group bound to VFIO or unbound
EAL: Requested device 0000:02:05.0 cannot be used
EAL: 0000:02:06.0 VFIO group is not viable! Not all devices in IOMMU 
group bound to VFIO or unbound
EAL: Requested device 0000:02:06.0 cannot be used
EAL: 0000:02:07.0 VFIO group is not viable! Not all devices in IOMMU 
group bound to VFIO or unbound
EAL: Requested device 0000:02:07.0 cannot be used
...


root at devuan4-sysman:~# readlink 
"/sys/bus/pci/devices/0000:02:04.0/iommu_group"
../../../../kernel/iommu_groups/5
root at devuan4-sysman:~# readlink 
"/sys/bus/pci/devices/0000:02:05.0/iommu_group"
../../../../kernel/iommu_groups/5
root at devuan4-sysman:~# readlink 
"/sys/bus/pci/devices/0000:02:06.0/iommu_group"
../../../../kernel/iommu_groups/5
root at devuan4-sysman:~# readlink 
"/sys/bus/pci/devices/0000:02:07.0/iommu_group"
../../../../kernel/iommu_groups/5



Can someone, please, help me resolve this problem?