NSIM_DEV_VF_PORT_INDEX_BASE
if (val > NSIM_DEV_VF_PORT_INDEX_MAX - NSIM_DEV_VF_PORT_INDEX_BASE)
port_index = NSIM_DEV_VF_PORT_INDEX_BASE + port_index;
return port_index - NSIM_DEV_VF_PORT_INDEX_BASE;