PCI IOV support

modulename: iov.ko

configname: CONFIG_PCI_IOV

Linux Kernel Configuration
└─>Bus options (PCI etc.)
└─>PCI IOV support
In linux kernel since version 3.10 (release Date: 2013-06-30)  
I/O Virtualization is a PCI feature supported by some devices
which allows them to create virtual devices which share their
physical resources.

If unsure, say N.

source code:
selects
CONFIG_PCI_ATS

depends
CONFIG_PCI

is depended by
CONFIG_INFINIBAND_USNIC