07a251c80c
Each function driver instance uses the MAC address of the lowest function belonging to that physical port as a unique port identifier. This port identifier is read and cached in driver during probe and provided to user space through ndo_get_phys_port_id() Signed-off-by: Shahed Shaikh <shahed.shaikh@qlogic.com> Signed-off-by: Himanshu Madhani <himanshu.madhani@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>