[dpdk-users] Cannot Bind eth0 to vfio-pci Driver

[Ramzah Rehman]

I am trying to bind an interface eth0 to vfio driver. I have made sure
iommu is enabled in grub and kernel. I have loaded the module vfio-pci. Ran
following commands

#modprobe vfio-pci
#chmod a+x /dev/vfio
#chmod 0666 /dev/vfio/*
#export DPDK_DIR=/usr/src/dpdk-stable-17.11.4
#sudo $DPDK_DIR/usertools/dpdk-devbind.py --bind=vfio-pci 02:01.0

I got following error:

Error: bind failed for 0000:02:01.0 - Cannot bind to driver vfio-pci

I checked the error in dmesg:

Got :

[ 1815.793823] vfio-pci: probe of 0000:02:01.0 failed with error -22

let me know the reason.

Best Regards,
Ramzah Rehman