search for: virtio_config_chang

...ions(-) diff --git a/include/linux/virtio.h b/include/linux/virtio.h index b46671e..3c19bd3 100644 --- a/include/linux/virtio.h +++ b/include/linux/virtio.h @@ -108,6 +108,8 @@ void unregister_virtio_device(struct virtio_device *dev); void virtio_break_device(struct virtio_device *dev); +void virtio_config_changed(struct virtio_device *dev); + /** * virtio_driver - operations for a virtio I/O driver * @driver: underlying device driver (populate name and owner). diff --git a/drivers/misc/mic/card/mic_virtio.c b/drivers/misc/mic/card/mic_virtio.c index f14b600..e647947 100644 --- a/drivers/misc/mic/card...

...ions(-) diff --git a/include/linux/virtio.h b/include/linux/virtio.h index b46671e..3c19bd3 100644 --- a/include/linux/virtio.h +++ b/include/linux/virtio.h @@ -108,6 +108,8 @@ void unregister_virtio_device(struct virtio_device *dev); void virtio_break_device(struct virtio_device *dev); +void virtio_config_changed(struct virtio_device *dev); + /** * virtio_driver - operations for a virtio I/O driver * @driver: underlying device driver (populate name and owner). diff --git a/drivers/misc/mic/card/mic_virtio.c b/drivers/misc/mic/card/mic_virtio.c index f14b600..e647947 100644 --- a/drivers/misc/mic/card...

...ions(-) diff --git a/include/linux/virtio.h b/include/linux/virtio.h index b46671e..3c19bd3 100644 --- a/include/linux/virtio.h +++ b/include/linux/virtio.h @@ -108,6 +108,8 @@ void unregister_virtio_device(struct virtio_device *dev); void virtio_break_device(struct virtio_device *dev); +void virtio_config_changed(struct virtio_device *dev); + /** * virtio_driver - operations for a virtio I/O driver * @driver: underlying device driver (populate name and owner). diff --git a/drivers/misc/mic/card/mic_virtio.c b/drivers/misc/mic/card/mic_virtio.c index f14b600..e647947 100644 --- a/drivers/misc/mic/card...

...ions(-) diff --git a/include/linux/virtio.h b/include/linux/virtio.h index b46671e..3c19bd3 100644 --- a/include/linux/virtio.h +++ b/include/linux/virtio.h @@ -108,6 +108,8 @@ void unregister_virtio_device(struct virtio_device *dev); void virtio_break_device(struct virtio_device *dev); +void virtio_config_changed(struct virtio_device *dev); + /** * virtio_driver - operations for a virtio I/O driver * @driver: underlying device driver (populate name and owner). diff --git a/drivers/misc/mic/card/mic_virtio.c b/drivers/misc/mic/card/mic_virtio.c index f14b600..e647947 100644 --- a/drivers/misc/mic/card...

...t; index 657f817..578e02d 100644 > --- a/drivers/virtio/virtio.c > +++ b/drivers/virtio/virtio.c > @@ -117,6 +117,40 @@ void virtio_check_driver_offered_feature(const struct virtio_device *vdev, > } > EXPORT_SYMBOL_GPL(virtio_check_driver_offered_feature); > > +static void __virtio_config_changed(struct virtio_device *dev) > +{ > + struct virtio_driver *drv = drv_to_virtio(dev->dev.driver); > + > + if (!dev->config_enabled) > + dev->config_changed = true; > + else if (drv && drv->config_changed) > + drv->config_changed(dev); > +} > + &gt...

...t; index 657f817..578e02d 100644 > --- a/drivers/virtio/virtio.c > +++ b/drivers/virtio/virtio.c > @@ -117,6 +117,40 @@ void virtio_check_driver_offered_feature(const struct virtio_device *vdev, > } > EXPORT_SYMBOL_GPL(virtio_check_driver_offered_feature); > > +static void __virtio_config_changed(struct virtio_device *dev) > +{ > + struct virtio_driver *drv = drv_to_virtio(dev->dev.driver); > + > + if (!dev->config_enabled) > + dev->config_changed = true; > + else if (drv && drv->config_changed) > + drv->config_changed(dev); > +} > + &gt...

...o/virtio.c b/drivers/virtio/virtio.c index 657f817..578e02d 100644 --- a/drivers/virtio/virtio.c +++ b/drivers/virtio/virtio.c @@ -117,6 +117,40 @@ void virtio_check_driver_offered_feature(const struct virtio_device *vdev, } EXPORT_SYMBOL_GPL(virtio_check_driver_offered_feature); +static void __virtio_config_changed(struct virtio_device *dev) +{ + struct virtio_driver *drv = drv_to_virtio(dev->dev.driver); + + if (!dev->config_enabled) + dev->config_changed = true; + else if (drv && drv->config_changed) + drv->config_changed(dev); +} + +void virtio_config_changed(struct virtio_device...

...o/virtio.c b/drivers/virtio/virtio.c index 657f817..6214744 100644 --- a/drivers/virtio/virtio.c +++ b/drivers/virtio/virtio.c @@ -117,6 +117,42 @@ void virtio_check_driver_offered_feature(const struct virtio_device *vdev, } EXPORT_SYMBOL_GPL(virtio_check_driver_offered_feature); +static void __virtio_config_changed(struct virtio_device *dev) +{ + struct virtio_driver *drv = drv_to_virtio(dev->dev.driver); + + if (!dev->config_enabled) + dev->config_changed = true; + else if (drv && drv->config_changed) + drv->config_changed(dev); +} + +void virtio_config_changed(struct virtio_device...

Rusty, I have a mind to send this patches for the next merge window. Any input on this? This fixes the following virtio spec compliance issues: 1. on restore, drivers use device before setting ACKNOWLEDGE and DRIVER bits 2. on probe, drivers aren't prepared to handle config interrupts arriving before probe returns 3. on probe, drivers use device before DRIVER_OK it set Note that 1 is a

Rusty, I have a mind to send this patches for the next merge window. Any input on this? This fixes the following virtio spec compliance issues: 1. on restore, drivers use device before setting ACKNOWLEDGE and DRIVER bits 2. on probe, drivers aren't prepared to handle config interrupts arriving before probe returns 3. on probe, drivers use device before DRIVER_OK it set Note that 1 is a

...ig change, so there's no > > > deadlock there.) > > > > > > One way to get out of that constraint (don't interact with the config > > > space directly in the config changed handler) would be to schedule a > > > work item in virtio-ccw that calls virtio_config_changed() for the > > > device. My understanding is that delaying the notification to a work > > > queue would be fine. > > > > Unfortunately, calling virtio_config_changed() from a work item is not > > enough: That function takes the config_lock, and the virtio-ccw...

Rusty, I have a mind to include this patchset for this merge window. Any input on this? This fixes the following virtio spec compliance issues: 1. on restore, drivers use device before setting ACKNOWLEDGE and DRIVER bits 2. on probe, drivers aren't prepared to handle config interrupts arriving before probe returns 3. on probe, drivers use device before DRIVER_OK it set Note that 1 is a

Rusty, I have a mind to include this patchset for this merge window. Any input on this? This fixes the following virtio spec compliance issues: 1. on restore, drivers use device before setting ACKNOWLEDGE and DRIVER bits 2. on probe, drivers aren't prepared to handle config interrupts arriving before probe returns 3. on probe, drivers use device before DRIVER_OK it set Note that 1 is a

...o/virtio.c b/drivers/virtio/virtio.c index 8216b73..2536701 100644 --- a/drivers/virtio/virtio.c +++ b/drivers/virtio/virtio.c @@ -117,6 +117,42 @@ void virtio_check_driver_offered_feature(const struct virtio_device *vdev, } EXPORT_SYMBOL_GPL(virtio_check_driver_offered_feature); +static void __virtio_config_changed(struct virtio_device *dev) +{ + struct virtio_driver *drv = drv_to_virtio(dev->dev.driver); + + if (!dev->config_enabled) + dev->config_changed = true; + else if (drv && drv->config_changed) + drv->config_changed(dev); +} + +void virtio_config_changed(struct virtio_device...

...o/virtio.c b/drivers/virtio/virtio.c index 8216b73..2536701 100644 --- a/drivers/virtio/virtio.c +++ b/drivers/virtio/virtio.c @@ -117,6 +117,42 @@ void virtio_check_driver_offered_feature(const struct virtio_device *vdev, } EXPORT_SYMBOL_GPL(virtio_check_driver_offered_feature); +static void __virtio_config_changed(struct virtio_device *dev) +{ + struct virtio_driver *drv = drv_to_virtio(dev->dev.driver); + + if (!dev->config_enabled) + dev->config_changed = true; + else if (drv && drv->config_changed) + drv->config_changed(dev); +} + +void virtio_config_changed(struct virtio_device...

Rusty, please review this, and consider for this merge window. This fixes the following virtio spec compliance issues: 1. on restore, drivers use device before setting ACKNOWLEDGE and DRIVER bits 2. on probe, drivers aren't prepared to handle config interrupts arriving before probe returns 3. on probe, drivers use device before DRIVER_OK it set Note that 1 is a clear violation of virtio

Rusty, please review this, and consider for this merge window. This fixes the following virtio spec compliance issues: 1. on restore, drivers use device before setting ACKNOWLEDGE and DRIVER bits 2. on probe, drivers aren't prepared to handle config interrupts arriving before probe returns 3. on probe, drivers use device before DRIVER_OK it set Note that 1 is a clear violation of virtio

...ue *vq); */ struct virtio_device { int index; + bool failed; struct device dev; struct virtio_device_id id; const struct virtio_config_ops *config; @@ -109,6 +111,10 @@ void unregister_virtio_device(struct virtio_device *dev); void virtio_break_device(struct virtio_device *dev); void virtio_config_changed(struct virtio_device *dev); +#ifdef CONFIG_PM_SLEEP +int virtio_device_freeze(struct virtio_device *dev); +int virtio_device_restore(struct virtio_device *dev); +#endif /** * virtio_driver - operations for a virtio I/O driver diff --git a/drivers/virtio/virtio.c b/drivers/virtio/virtio.c ind...

...ue *vq); */ struct virtio_device { int index; + bool failed; struct device dev; struct virtio_device_id id; const struct virtio_config_ops *config; @@ -109,6 +111,10 @@ void unregister_virtio_device(struct virtio_device *dev); void virtio_break_device(struct virtio_device *dev); void virtio_config_changed(struct virtio_device *dev); +#ifdef CONFIG_PM_SLEEP +int virtio_device_freeze(struct virtio_device *dev); +int virtio_device_restore(struct virtio_device *dev); +#endif /** * virtio_driver - operations for a virtio I/O driver diff --git a/drivers/virtio/virtio.c b/drivers/virtio/virtio.c ind...

...ue *vq); */ struct virtio_device { int index; + bool failed; struct device dev; struct virtio_device_id id; const struct virtio_config_ops *config; @@ -109,6 +111,10 @@ void unregister_virtio_device(struct virtio_device *dev); void virtio_break_device(struct virtio_device *dev); void virtio_config_changed(struct virtio_device *dev); +#ifdef CONFIG_PM_SLEEP +int virtio_device_freeze(struct virtio_device *dev); +int virtio_device_restore(struct virtio_device *dev); +#endif /** * virtio_driver - operations for a virtio I/O driver diff --git a/drivers/virtio/virtio.c b/drivers/virtio/virtio.c ind...