_build(&fchs, bfa_fcxp_get_reqbuf(fcxp), rport->pid,     bfa_fcs_lport_get_fcid(port), 0,     port->port_cfg.pwwn, port->port_cfg.nwwn);   bfa_fcxp_send(fcxp, NULL, port->fabric->vf_id, port->lp_tag, BFA_FALSE,    FC_CLASS_0, len, &fchs, bfa_fcs_rport_