How to force 10Gbase-SR to full-duplex

Hi ,

I am trying to force my network cards of my freenas box to 10G full-duplex , cant find the right syntax
the type is below
Please advice
Thanks

x1: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 9000
options=407bb<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,JUMBO_MTU,VLAN_HWCSU
M,TSO4,TSO6,LRO,VLAN_HWTSO>
ether 90:e2:ba:85:02:bb
inet 192.168.10.10 netmask 0xffffff00 broadcast 192.168.10.255
nd6 options=9<PERFORMNUD,IFDISABLED>
media: Ethernet autoselect (10Gbase-SR...

How to force 10Gbase-SR to full-duplex