CPL_CLOSE_LISTSRV_RPL
t4_register_cpl_handler(CPL_CLOSE_LISTSRV_RPL, do_close_server_rpl);
t4_register_cpl_handler(CPL_CLOSE_LISTSRV_RPL, NULL);
KASSERT(opcode == CPL_CLOSE_LISTSRV_RPL,