Lines Matching refs:cdev
63 struct ccw_device *cdev = to_ccwdev(dev);
70 found = ccw_device_id_match(ids, &cdev->id);
74 cdev->id.driver_info = found->driver_info;
106 const struct ccw_device *cdev = to_ccwdev(dev);
107 const struct ccw_device_id *id = &(cdev->id);
200 struct ccw_device *cdev = to_ccwdev(dev);
201 struct ccw_device_id *id = &(cdev->id);
213 struct ccw_device *cdev = to_ccwdev(dev);
214 struct ccw_device_id *id = &(cdev->id);
223 struct ccw_device *cdev = to_ccwdev(dev);
224 struct ccw_device_id *id = &(cdev->id);
235 struct ccw_device *cdev = to_ccwdev(dev);
237 return sprintf(buf, cdev->online ? "1\n" : "0\n");
240 int ccw_device_is_orphan(struct ccw_device *cdev)
242 return sch_is_pseudo_sch(to_subchannel(cdev->dev.parent));
245 static void ccw_device_unregister(struct ccw_device *cdev)
247 mutex_lock(&cdev->reg_mutex);
248 if (device_is_registered(&cdev->dev)) {
250 device_del(&cdev->dev);
252 mutex_unlock(&cdev->reg_mutex);
254 if (cdev->private->flags.initialized) {
255 cdev->private->flags.initialized = 0;
257 put_device(&cdev->dev);
265 * @cdev: target ccw device
267 * This function calls the driver's set_offline() function for @cdev, if
268 * given, and then disables @cdev.
274 int ccw_device_set_offline(struct ccw_device *cdev)
279 if (!cdev)
281 if (!cdev->online || !cdev->drv)
284 if (cdev->drv->set_offline) {
285 ret = cdev->drv->set_offline(cdev);
289 spin_lock_irq(cdev->ccwlock);
290 sch = to_subchannel(cdev->dev.parent);
291 cdev->online = 0;
293 while (!dev_fsm_final_state(cdev) &&
294 cdev->private->state != DEV_STATE_DISCONNECTED) {
295 spin_unlock_irq(cdev->ccwlock);
296 wait_event(cdev->private->wait_q, (dev_fsm_final_state(cdev) ||
297 cdev->private->state == DEV_STATE_DISCONNECTED));
298 spin_lock_irq(cdev->ccwlock);
301 ret = ccw_device_offline(cdev);
305 "0.%x.%04x\n", ret, cdev->private->dev_id.ssid,
306 cdev->private->dev_id.devno);
309 state = cdev->private->state;
310 spin_unlock_irq(cdev->ccwlock);
312 spin_lock_irq(cdev->ccwlock);
313 cdev->private->state = state;
315 spin_unlock_irq(cdev->ccwlock);
316 wait_event(cdev->private->wait_q, (dev_fsm_final_state(cdev) ||
317 cdev->private->state == DEV_STATE_DISCONNECTED));
319 if (cdev->private->state == DEV_STATE_BOXED) {
321 dev_name(&cdev->dev));
322 } else if (cdev->private->state == DEV_STATE_NOT_OPER) {
324 dev_name(&cdev->dev));
327 put_device(&cdev->dev);
331 cdev->private->state = DEV_STATE_OFFLINE;
332 dev_fsm_event(cdev, DEV_EVENT_NOTOPER);
333 spin_unlock_irq(cdev->ccwlock);
335 put_device(&cdev->dev);
341 * @cdev: target ccw device
343 * This function first enables @cdev and then calls the driver's set_online()
344 * function for @cdev, if given. If set_online() returns an error, @cdev is
351 int ccw_device_set_online(struct ccw_device *cdev)
356 if (!cdev)
358 if (cdev->online || !cdev->drv)
361 if (!get_device(&cdev->dev))
364 spin_lock_irq(cdev->ccwlock);
365 ret = ccw_device_online(cdev);
366 spin_unlock_irq(cdev->ccwlock);
368 wait_event(cdev->private->wait_q, dev_fsm_final_state(cdev));
372 ret, cdev->private->dev_id.ssid,
373 cdev->private->dev_id.devno);
375 put_device(&cdev->dev);
378 spin_lock_irq(cdev->ccwlock);
380 if ((cdev->private->state != DEV_STATE_ONLINE) &&
381 (cdev->private->state != DEV_STATE_W4SENSE)) {
382 spin_unlock_irq(cdev->ccwlock);
384 if (cdev->private->state == DEV_STATE_BOXED) {
386 dev_name(&cdev->dev));
387 } else if (cdev->private->state == DEV_STATE_NOT_OPER) {
389 dev_name(&cdev->dev));
392 put_device(&cdev->dev);
395 spin_unlock_irq(cdev->ccwlock);
396 if (cdev->drv->set_online)
397 ret = cdev->drv->set_online(cdev);
401 spin_lock_irq(cdev->ccwlock);
402 cdev->online = 1;
403 spin_unlock_irq(cdev->ccwlock);
407 spin_lock_irq(cdev->ccwlock);
409 while (!dev_fsm_final_state(cdev) &&
410 cdev->private->state != DEV_STATE_DISCONNECTED) {
411 spin_unlock_irq(cdev->ccwlock);
412 wait_event(cdev->private->wait_q, (dev_fsm_final_state(cdev) ||
413 cdev->private->state == DEV_STATE_DISCONNECTED));
414 spin_lock_irq(cdev->ccwlock);
416 ret2 = ccw_device_offline(cdev);
419 spin_unlock_irq(cdev->ccwlock);
420 wait_event(cdev->private->wait_q, (dev_fsm_final_state(cdev) ||
421 cdev->private->state == DEV_STATE_DISCONNECTED));
423 put_device(&cdev->dev);
429 ret2, cdev->private->dev_id.ssid,
430 cdev->private->dev_id.devno);
431 cdev->private->state = DEV_STATE_OFFLINE;
432 spin_unlock_irq(cdev->ccwlock);
434 put_device(&cdev->dev);
438 static int online_store_handle_offline(struct ccw_device *cdev)
440 if (cdev->private->state == DEV_STATE_DISCONNECTED) {
441 spin_lock_irq(cdev->ccwlock);
442 ccw_device_sched_todo(cdev, CDEV_TODO_UNREG_EVAL);
443 spin_unlock_irq(cdev->ccwlock);
446 if (cdev->drv && cdev->drv->set_offline)
447 return ccw_device_set_offline(cdev);
451 static int online_store_recog_and_online(struct ccw_device *cdev)
454 if (cdev->private->state == DEV_STATE_BOXED) {
455 spin_lock_irq(cdev->ccwlock);
456 ccw_device_recognition(cdev);
457 spin_unlock_irq(cdev->ccwlock);
458 wait_event(cdev->private->wait_q,
459 cdev->private->flags.recog_done);
460 if (cdev->private->state != DEV_STATE_OFFLINE)
464 if (cdev->drv && cdev->drv->set_online)
465 return ccw_device_set_online(cdev);
469 static int online_store_handle_online(struct ccw_device *cdev, int force)
473 ret = online_store_recog_and_online(cdev);
476 if (force && cdev->private->state == DEV_STATE_BOXED) {
477 ret = ccw_device_stlck(cdev);
480 if (cdev->id.cu_type == 0)
481 cdev->private->state = DEV_STATE_NOT_OPER;
482 ret = online_store_recog_and_online(cdev);
492 struct ccw_device *cdev = to_ccwdev(dev);
497 if (atomic_cmpxchg(&cdev->private->onoff, 0, 1) != 0)
500 if (!dev_fsm_final_state(cdev) &&
501 cdev->private->state != DEV_STATE_DISCONNECTED) {
506 if (work_pending(&cdev->private->todo_work)) {
524 ret = online_store_handle_offline(cdev);
527 ret = online_store_handle_online(cdev, force);
535 atomic_set(&cdev->private->onoff, 0);
542 struct ccw_device *cdev = to_ccwdev(dev);
545 if (ccw_device_is_orphan(cdev))
547 switch (cdev->private->state) {
629 struct ccw_device *cdev = to_ccwdev(dev);
632 return ccw_dev_id_is_equal(&cdev->private->dev_id, dev_id);
655 static void ccw_device_do_unbind_bind(struct ccw_device *cdev)
659 mutex_lock(&cdev->reg_mutex);
660 if (device_is_registered(&cdev->dev)) {
661 device_release_driver(&cdev->dev);
662 ret = device_attach(&cdev->dev);
665 mutex_unlock(&cdev->reg_mutex);
671 struct ccw_device *cdev;
673 cdev = to_ccwdev(dev);
674 cio_gp_dma_free(cdev->private->dma_pool, cdev->private->dma_area,
675 sizeof(*cdev->private->dma_area));
676 cio_gp_dma_destroy(cdev->private->dma_pool, &cdev->dev);
678 put_device(cdev->dev.parent);
679 kfree(cdev->private);
680 kfree(cdev);
685 struct ccw_device *cdev;
689 cdev = kzalloc(sizeof(*cdev), GFP_KERNEL);
690 if (!cdev) {
694 cdev->private = kzalloc(sizeof(struct ccw_device_private),
696 if (!cdev->private) {
701 cdev->dev.dma_mask = sch->dev.dma_mask;
702 ret = dma_set_coherent_mask(&cdev->dev, sch->dev.coherent_dma_mask);
706 dma_pool = cio_gp_dma_create(&cdev->dev, 1);
711 cdev->private->dma_pool = dma_pool;
712 cdev->private->dma_area = cio_gp_dma_zalloc(dma_pool, &cdev->dev,
713 sizeof(*cdev->private->dma_area));
714 if (!cdev->private->dma_area) {
718 return cdev;
720 cio_gp_dma_destroy(dma_pool, &cdev->dev);
723 kfree(cdev->private);
725 kfree(cdev);
733 struct ccw_device *cdev)
735 struct ccw_device_private *priv = cdev->private;
738 priv->cdev = cdev;
748 mutex_init(&cdev->reg_mutex);
751 cdev->ccwlock = sch->lock;
752 cdev->dev.parent = &sch->dev;
753 cdev->dev.release = ccw_device_release;
754 cdev->dev.bus = &ccw_bus_type;
755 cdev->dev.groups = ccwdev_attr_groups;
757 device_initialize(&cdev->dev);
758 ret = dev_set_name(&cdev->dev, "0.%x.%04x", cdev->private->dev_id.ssid,
759 cdev->private->dev_id.devno);
768 sch_set_cdev(sch, cdev);
774 put_device(&cdev->dev);
780 struct ccw_device *cdev;
783 cdev = io_subchannel_allocate_dev(sch);
784 if (!IS_ERR(cdev)) {
785 ret = io_subchannel_initialize_dev(sch, cdev);
787 cdev = ERR_PTR(ret);
789 return cdev;
796 struct ccw_device *cdev;
799 cdev = io_subchannel_create_ccwdev(sch);
800 if (IS_ERR(cdev)) {
806 io_subchannel_recog(cdev, sch);
812 static void io_subchannel_register(struct ccw_device *cdev)
818 sch = to_subchannel(cdev->dev.parent);
834 mutex_lock(&cdev->reg_mutex);
835 if (device_is_registered(&cdev->dev)) {
836 if (!cdev->drv) {
837 ret = device_reprobe(&cdev->dev);
842 cdev->private->dev_id.ssid,
843 cdev->private->dev_id.devno);
849 ret = device_add(&cdev->dev);
852 cdev->private->dev_id.ssid,
853 cdev->private->dev_id.devno, ret);
857 mutex_unlock(&cdev->reg_mutex);
859 put_device(&cdev->dev);
863 cdev->private->flags.recog_done = 1;
864 mutex_unlock(&cdev->reg_mutex);
865 wake_up(&cdev->private->wait_q);
875 io_subchannel_recog_done(struct ccw_device *cdev)
878 cdev->private->flags.recog_done = 1;
881 switch (cdev->private->state) {
885 cdev->private->flags.recog_done = 1;
887 ccw_device_sched_todo(cdev, CDEV_TODO_UNREG);
896 ccw_device_sched_todo(cdev, CDEV_TODO_REGISTER);
901 static void io_subchannel_recog(struct ccw_device *cdev, struct subchannel *sch)
908 ccw_device_recognition(cdev);
912 static int ccw_device_move_to_sch(struct ccw_device *cdev,
918 old_sch = to_subchannel(cdev->dev.parent);
938 rc = device_move(&cdev->dev, &sch->dev, DPM_ORDER_PARENT_BEFORE_DEV);
942 cdev->private->dev_id.ssid,
943 cdev->private->dev_id.devno, sch->schid.ssid,
966 cdev->ccwlock = sch->lock;
968 sch_set_cdev(sch, cdev);
975 static int ccw_device_move_to_orph(struct ccw_device *cdev)
977 struct subchannel *sch = to_subchannel(cdev->dev.parent);
980 return ccw_device_move_to_sch(cdev, css->pseudo_subchannel);
985 struct ccw_device *cdev;
987 cdev = sch_get_cdev(sch);
991 if (cdev)
992 dev_fsm_event(cdev, DEV_EVENT_INTERRUPT);
1028 struct ccw_device *cdev;
1043 cdev = sch_get_cdev(sch);
1044 rc = device_add(&cdev->dev);
1047 put_device(&cdev->dev);
1089 struct ccw_device *cdev;
1091 cdev = sch_get_cdev(sch);
1092 if (!cdev)
1095 ccw_device_unregister(cdev);
1109 struct ccw_device *cdev;
1111 cdev = sch_get_cdev(sch);
1112 if (cdev)
1113 dev_fsm_event(cdev, DEV_EVENT_VERIFY);
1120 struct ccw_device *cdev;
1122 cdev = sch_get_cdev(sch);
1123 if (!cdev)
1130 if (cdev->private->state == DEV_STATE_ONLINE) {
1131 ccw_device_kill_io(cdev);
1138 dev_fsm_event(cdev, DEV_EVENT_VERIFY);
1142 dev_fsm_event(cdev, DEV_EVENT_NOTOPER);
1148 struct ccw_device *cdev = sch_get_cdev(sch);
1159 if (cdev)
1160 cdev->private->path_gone_mask |= mask;
1166 if (cdev)
1167 cdev->private->path_new_mask |= mask;
1173 if (cdev)
1174 cdev->private->path_gone_mask |= mask;
1181 if (cdev)
1182 cdev->private->path_new_mask |= mask;
1194 if (cdev && cdev->drv && cdev->drv->path_event)
1195 cdev->drv->path_event(cdev, path_event);
1203 struct ccw_device *cdev;
1207 cdev = sch_get_cdev(sch);
1215 if (cdev->handler)
1216 cdev->handler(cdev, cdev->private->intparm, ERR_PTR(-EIO));
1218 cdev->private->state = DEV_STATE_QUIESCE;
1219 cdev->private->iretry = 255;
1220 ret = ccw_device_cancel_halt_clear(cdev);
1222 ccw_device_set_timeout(cdev, HZ/10);
1224 wait_event(cdev->private->wait_q,
1225 cdev->private->state != DEV_STATE_QUIESCE);
1239 static int device_is_disconnected(struct ccw_device *cdev)
1241 if (!cdev)
1243 return (cdev->private->state == DEV_STATE_DISCONNECTED ||
1244 cdev->private->state == DEV_STATE_DISCONNECTED_SENSE_ID);
1249 struct ccw_device *cdev = to_ccwdev(dev);
1253 spin_lock_irq(cdev->ccwlock);
1254 switch (cdev->private->state) {
1256 sch = to_subchannel(cdev->dev.parent);
1262 cdev->private->dev_id.ssid,
1263 cdev->private->dev_id.devno);
1264 dev_fsm_event(cdev, DEV_EVENT_VERIFY);
1271 spin_unlock_irq(cdev->ccwlock);
1320 struct ccw_device *cdev = to_ccwdev(dev);
1321 struct ccw_dev_id *id = &cdev->private->dev_id;
1322 struct subchannel *sch = to_subchannel(cdev->dev.parent);
1324 spin_lock_irq(cdev->ccwlock);
1326 (cdev->private->state == DEV_STATE_OFFLINE) &&
1327 (atomic_cmpxchg(&cdev->private->onoff, 0, 1) == 0)) {
1330 ccw_device_sched_todo(cdev, CDEV_TODO_UNREG);
1332 atomic_set(&cdev->private->onoff, 0);
1334 spin_unlock_irq(cdev->ccwlock);
1354 void ccw_device_set_disconnected(struct ccw_device *cdev)
1356 if (!cdev)
1358 ccw_device_set_timeout(cdev, 0);
1359 cdev->private->flags.fake_irb = 0;
1360 cdev->private->state = DEV_STATE_DISCONNECTED;
1361 if (cdev->online)
1365 void ccw_device_set_notoper(struct ccw_device *cdev)
1367 struct subchannel *sch = to_subchannel(cdev->dev.parent);
1371 ccw_device_set_timeout(cdev, 0);
1373 cdev->private->state = DEV_STATE_NOT_OPER;
1391 struct ccw_device *cdev;
1393 cdev = sch_get_cdev(sch);
1396 if (!cdev)
1398 if (ccw_device_notify(cdev, CIO_GONE) != NOTIFY_OK)
1403 if (!cdev)
1405 if (sch->schib.pmcw.dev != cdev->private->dev_id.devno) {
1406 if (ccw_device_notify(cdev, CIO_GONE) != NOTIFY_OK)
1411 if (ccw_device_notify(cdev, CIO_NO_PATH) != NOTIFY_OK)
1415 if (device_is_disconnected(cdev))
1417 if (cdev->online)
1419 if (cdev->private->state == DEV_STATE_NOT_OPER)
1437 struct ccw_device *cdev;
1447 cdev = sch_get_cdev(sch);
1448 if (cdev && work_pending(&cdev->private->todo_work))
1458 ccw_device_trigger_reprobe(cdev);
1467 ccw_device_set_disconnected(cdev);
1472 ccw_device_set_disconnected(cdev);
1477 if (!cdev)
1479 if (cdev->private->state == DEV_STATE_SENSE_ID) {
1483 * by the above check for work_pending(cdev).
1485 dev_fsm_event(cdev, DEV_EVENT_NOTOPER);
1487 ccw_device_set_notoper(cdev);
1504 rc = ccw_device_move_to_orph(cdev);
1514 ccw_device_unregister(cdev);
1530 cdev = get_ccwdev_by_dev_id(&dev_id);
1531 if (!cdev) {
1535 rc = ccw_device_move_to_sch(cdev, sch);
1538 put_device(&cdev->dev);
1542 ccw_device_trigger_reprobe(cdev);
1545 put_device(&cdev->dev);
1558 static void ccw_device_set_int_class(struct ccw_device *cdev)
1560 struct ccw_driver *cdrv = cdev->drv;
1565 cdev->private->int_class = cdrv->int_class;
1567 cdev->private->int_class = IRQIO_CIO;
1571 int __init ccw_device_enable_console(struct ccw_device *cdev)
1573 struct subchannel *sch = to_subchannel(cdev->dev.parent);
1576 if (!cdev->drv || !cdev->handler)
1584 io_subchannel_recog(cdev, sch);
1586 spin_lock_irq(cdev->ccwlock);
1587 while (!dev_fsm_final_state(cdev))
1588 ccw_device_wait_idle(cdev);
1591 get_device(&cdev->dev);
1592 rc = ccw_device_online(cdev);
1596 while (!dev_fsm_final_state(cdev))
1597 ccw_device_wait_idle(cdev);
1599 if (cdev->private->state == DEV_STATE_ONLINE)
1600 cdev->online = 1;
1604 spin_unlock_irq(cdev->ccwlock);
1606 put_device(&cdev->dev);
1613 struct ccw_device *cdev;
1629 cdev = io_subchannel_create_ccwdev(sch);
1630 if (IS_ERR(cdev)) {
1636 return cdev;
1638 cdev->drv = drv;
1639 ccw_device_set_int_class(cdev);
1640 return cdev;
1649 void __init ccw_device_destroy_console(struct ccw_device *cdev)
1651 struct subchannel *sch = to_subchannel(cdev->dev.parent);
1658 put_device(&cdev->dev);
1664 * @cdev: ccw device
1670 void ccw_device_wait_idle(struct ccw_device *cdev)
1672 struct subchannel *sch = to_subchannel(cdev->dev.parent);
1717 struct ccw_device *cdev = to_ccwdev(dev);
1721 cdev->drv = cdrv; /* to let the driver call _set_online */
1722 ccw_device_set_int_class(cdev);
1723 ret = cdrv->probe ? cdrv->probe(cdev) : -ENODEV;
1725 cdev->drv = NULL;
1726 cdev->private->int_class = IRQIO_CIO;
1735 struct ccw_device *cdev = to_ccwdev(dev);
1736 struct ccw_driver *cdrv = cdev->drv;
1741 cdrv->remove(cdev);
1743 spin_lock_irq(cdev->ccwlock);
1744 if (cdev->online) {
1745 cdev->online = 0;
1746 ret = ccw_device_offline(cdev);
1747 spin_unlock_irq(cdev->ccwlock);
1749 wait_event(cdev->private->wait_q,
1750 dev_fsm_final_state(cdev));
1754 ret, cdev->private->dev_id.ssid,
1755 cdev->private->dev_id.devno);
1757 put_device(&cdev->dev);
1758 spin_lock_irq(cdev->ccwlock);
1760 ccw_device_set_timeout(cdev, 0);
1761 cdev->drv = NULL;
1762 cdev->private->int_class = IRQIO_CIO;
1763 sch = to_subchannel(cdev->dev.parent);
1764 spin_unlock_irq(cdev->ccwlock);
1766 __disable_cmf(cdev);
1771 struct ccw_device *cdev;
1773 cdev = to_ccwdev(dev);
1774 if (cdev->drv && cdev->drv->shutdown)
1775 cdev->drv->shutdown(cdev);
1776 __disable_cmf(cdev);
1819 struct ccw_device *cdev;
1824 cdev = priv->cdev;
1825 sch = to_subchannel(cdev->dev.parent);
1827 spin_lock_irq(cdev->ccwlock);
1830 CIO_MSG_EVENT(4, "cdev_todo: cdev=0.%x.%04x todo=%d\n",
1832 spin_unlock_irq(cdev->ccwlock);
1836 cmf_reenable(cdev);
1839 ccw_device_do_unbind_bind(cdev);
1842 io_subchannel_register(cdev);
1852 ccw_device_unregister(cdev);
1858 put_device(&cdev->dev);
1863 * @cdev: ccw device
1870 void ccw_device_sched_todo(struct ccw_device *cdev, enum cdev_todo todo)
1872 CIO_MSG_EVENT(4, "cdev_todo: sched cdev=0.%x.%04x todo=%d\n",
1873 cdev->private->dev_id.ssid, cdev->private->dev_id.devno,
1875 if (cdev->private->todo >= todo)
1877 cdev->private->todo = todo;
1879 if (!get_device(&cdev->dev))
1881 if (!queue_work(cio_work_q, &cdev->private->todo_work)) {
1883 put_device(&cdev->dev);
1889 * @cdev: ccw device
1894 int ccw_device_siosl(struct ccw_device *cdev)
1896 struct subchannel *sch = to_subchannel(cdev->dev.parent);