[dpdk-dev] unable to bind to vfio-pci

[Sarosh Arif]

I have been trying to bind to vfio-pci using usertools/dpdk-devbind.py
but am unable to do so. The reason behind this is that I am unable to
write in /sys/bus/pci/drivers/vfio-pci/bind. Upon searching solutions
I tried a couple of things such as setting iommu=pt and intel_iommu=on
and ensured vt-d is enabled.
Along with this I have made sure that the vfio-pci module is correctly
loaded. I have also tried

chmod 666 /sys/bus/pci/drivers/vfio-pci/bind

So that I have permissions to write in this file.

The error I get when I use usertools/dpdk-devbind.py to bind is this:
Error: bind failed for 0000:b7:00.1 - Cannot bind to driver vfio-pci

The details of 0000:b7:00.1 are as follows:
Ethernet Connection X722 for 10GBASE-T 37d2' if=eno6 drv=i40e

I have also unbinded The pci bridge to which 0000:b7:00.1 was connected.

What more can be done to resolve this?

Regards,
Sarosh Arif