FortiGate + (multi) FortiLink

Hello,

Please take a look at the attached picture and help me to configure this setup.

I'd like to connect some (3-4) FortiSwitch devices to the one Fortigate device but each FortSwitch is connected to separate Fortigate ports (no chain connection between FortiSwitches).  As I understand hardware-switch not software-switch should gave me the highest network efficiency?

THA

R