vsw_maccl_open
rv = vsw_maccl_open(vswp, portp, VSW_VNETPORT);
rv = vsw_maccl_open(vswp, NULL, VSW_LOCALDEV);
rv = vsw_maccl_open(vswp, port, type);
static int vsw_maccl_open(vsw_t *vswp, vsw_port_t *port, int type);