vsw_mac_client_init
rv = vsw_mac_client_init(vswp, NULL, VSW_LOCALDEV);
extern int vsw_mac_client_init(vsw_t *vswp, vsw_port_t *port, int type);
extern int vsw_mac_client_init(vsw_t *vswp, vsw_port_t *port, int type);
rv = vsw_mac_client_init(vswp, port, VSW_VNETPORT);
int vsw_mac_client_init(vsw_t *vswp, vsw_port_t *port, int type);
rv = vsw_mac_client_init(vswp, NULL, VSW_LOCALDEV);
rv = vsw_mac_client_init(vswp, port, VSW_VNETPORT);