Dell R7610 sr-iov support bios mod

Hi everyone,
I have dell R7610 workstation which is really similar to dell R720 server main diffrence is it lacks sr-iov support, besides being same chipset as R720. I would appreciate some help how to add that feature to bios. Some time ago I added nvme support via bios modding to that workstation but there was clear tutorial how to do it. For more detailed info that platform is chipset C600 (intel Patsburg) which is server variant of X79. Bios seems to be standard Dell AMI Bios from that era. I can upload here what bios exacly I have flashed in my workstation if needed.
Best regards to everyone who read this.