s390/cio/device.c

252 	if (cdev->private->flags.initialized) {
253 		cdev->private->flags.initialized = 0;
292 	       cdev->private->state != DEV_STATE_DISCONNECTED) {
294 		wait_event(cdev->private->wait_q, (dev_fsm_final_state(cdev) ||
295 			   cdev->private->state == DEV_STATE_DISCONNECTED));
303 			      "0.%x.%04x\n", ret, cdev->private->dev_id.ssid,
304 			      cdev->private->dev_id.devno);
307 		state = cdev->private->state;
311 		cdev->private->state = state;
314 	wait_event(cdev->private->wait_q, (dev_fsm_final_state(cdev) ||
315 		   cdev->private->state == DEV_STATE_DISCONNECTED));
317 	if (cdev->private->state == DEV_STATE_BOXED) {
320 	} else if (cdev->private->state == DEV_STATE_NOT_OPER) {
329 	cdev->private->state = DEV_STATE_OFFLINE;
368 			      ret, cdev->private->dev_id.ssid,
369 			      cdev->private->dev_id.devno);
377 		wait_event(cdev->private->wait_q, dev_fsm_final_state(cdev));
381 	if ((cdev->private->state != DEV_STATE_ONLINE) &&
382 	    (cdev->private->state != DEV_STATE_W4SENSE)) {
385 		if (cdev->private->state == DEV_STATE_BOXED) {
388 		} else if (cdev->private->state == DEV_STATE_NOT_OPER) {
411 	       cdev->private->state != DEV_STATE_DISCONNECTED) {
413 		wait_event(cdev->private->wait_q, (dev_fsm_final_state(cdev) ||
414 			   cdev->private->state == DEV_STATE_DISCONNECTED));
421 	wait_event(cdev->private->wait_q, (dev_fsm_final_state(cdev) ||
422 		   cdev->private->state == DEV_STATE_DISCONNECTED));
430 		      ret2, cdev->private->dev_id.ssid,
431 		      cdev->private->dev_id.devno);
432 	cdev->private->state = DEV_STATE_OFFLINE;
441 	if (cdev->private->state == DEV_STATE_DISCONNECTED) {
455 	if (cdev->private->state == DEV_STATE_BOXED) {
459 		wait_event(cdev->private->wait_q,
460 			   cdev->private->flags.recog_done);
461 		if (cdev->private->state != DEV_STATE_OFFLINE)
477 	if (force && cdev->private->state == DEV_STATE_BOXED) {
482 			cdev->private->state = DEV_STATE_NOT_OPER;
498 	if (atomic_cmpxchg(&cdev->private->onoff, 0, 1) != 0)
502 	    cdev->private->state != DEV_STATE_DISCONNECTED) {
507 	if (work_pending(&cdev->private->todo_work)) {
536 	atomic_set(&cdev->private->onoff, 0);
548 	switch (cdev->private->state) {
633 	return ccw_dev_id_is_equal(&cdev->private->dev_id, dev_id);
675 	cio_gp_dma_free(cdev->private->dma_pool, cdev->private->dma_area,
676 			sizeof(*cdev->private->dma_area));
677 	cio_gp_dma_destroy(cdev->private->dma_pool, &cdev->dev);
680 	kfree(cdev->private);
695 	cdev->private = kzalloc(sizeof(struct ccw_device_private),
697 	if (!cdev->private) {
712 	cdev->private->dma_pool = dma_pool;
713 	cdev->private->dma_area = cio_gp_dma_zalloc(dma_pool, &cdev->dev,
714 					sizeof(*cdev->private->dma_area));
715 	if (!cdev->private->dma_area) {
724 	kfree(cdev->private);
736 	struct ccw_device_private *priv = cdev->private;
759 	ret = dev_set_name(&cdev->dev, "0.%x.%04x", cdev->private->dev_id.ssid,
760 			   cdev->private->dev_id.devno);
843 					      cdev->private->dev_id.ssid,
844 					      cdev->private->dev_id.devno);
853 			      cdev->private->dev_id.ssid,
854 			      cdev->private->dev_id.devno, ret);
864 	cdev->private->flags.recog_done = 1;
866 	wake_up(&cdev->private->wait_q);
879 		cdev->private->flags.recog_done = 1;
882 	switch (cdev->private->state) {
886 		cdev->private->flags.recog_done = 1;
943 			      cdev->private->dev_id.ssid,
944 			      cdev->private->dev_id.devno, sch->schid.ssid,
1063 	/* Allocate I/O subchannel private data. */
1131 	if (cdev->private->state == DEV_STATE_ONLINE) {
1161 			cdev->private->path_gone_mask |= mask;
1168 			cdev->private->path_new_mask |= mask;
1175 			cdev->private->path_gone_mask |= mask;
1183 			cdev->private->path_new_mask |= mask;
1217 		cdev->handler(cdev, cdev->private->intparm, ERR_PTR(-EIO));
1219 		cdev->private->state = DEV_STATE_QUIESCE;
1220 		cdev->private->iretry = 255;
1225 			wait_event(cdev->private->wait_q,
1226 				   cdev->private->state != DEV_STATE_QUIESCE);
1244 	return (cdev->private->state == DEV_STATE_DISCONNECTED ||
1245 		cdev->private->state == DEV_STATE_DISCONNECTED_SENSE_ID);
1255 	switch (cdev->private->state) {
1263 			      cdev->private->dev_id.ssid,
1264 			      cdev->private->dev_id.devno);
1322 	struct ccw_dev_id *id = &cdev->private->dev_id;
1327 	    (cdev->private->state == DEV_STATE_OFFLINE) &&
1328 	    (atomic_cmpxchg(&cdev->private->onoff, 0, 1) == 0)) {
1333 		atomic_set(&cdev->private->onoff, 0);
1360 	cdev->private->flags.fake_irb = 0;
1361 	cdev->private->state = DEV_STATE_DISCONNECTED;
1374 	cdev->private->state = DEV_STATE_NOT_OPER;
1420 	if (sch->schib.pmcw.dev != cdev->private->dev_id.devno) {
1434 	if (cdev->private->state == DEV_STATE_NOT_OPER)
1463 	if (cdev && work_pending(&cdev->private->todo_work))
1495 		if (cdev->private->state == DEV_STATE_SENSE_ID) {
1582 		cdev->private->int_class = cdrv->int_class;
1584 		cdev->private->int_class = IRQIO_CIO;
1616 	if (cdev->private->state == DEV_STATE_ONLINE)
1743 		cdev->private->int_class = IRQIO_CIO;
1766 			wait_event(cdev->private->wait_q,
1771 				      ret, cdev->private->dev_id.ssid,
1772 				      cdev->private->dev_id.devno);
1779 	cdev->private->int_class = IRQIO_CIO;
1890 		      cdev->private->dev_id.ssid, cdev->private->dev_id.devno,
1892 	if (cdev->private->todo >= todo)
1894 	cdev->private->todo = todo;
1898 	if (!queue_work(cio_work_q, &cdev->private->todo_work)) {