big ip file: /etc/init.d/stratospfinit

Hi, Please can you tell me what does the following command in the stratospfinit file do ?   modprobe igb max_vfs=$vfs,$vfs,$vfs,$vfs,$vfs,$vfs,$vfs,$vfs MDD=0,0,0,0,0,0,0,0 force_rss_sriov=1,1,1,...