search for: vm_notify_with_data

...upport for this feature for MMIO, channel I/O and modern PCI > > > transports. > > > > > > Signed-off-by: Viktor Prutyanov <viktor at daynix.com> > > > --- > > > v4: remove VP_NOTIFY macro and legacy PCI support, add > > > virtio_ccw_kvm_notify_with_data to virtio_ccw > > > v3: support feature in virtio_ccw, remove VM_NOTIFY, use avail_idx_shadow, > > > remove byte swap, rename to vring_notification_data > > > v2: reject the feature in virtio_ccw, replace __le32 with u32 > > > > > > Tested with di...

...rap counter and 15-bit > available index. > > Add support for this feature for MMIO, channel I/O and modern PCI > transports. > > Signed-off-by: Viktor Prutyanov <viktor at daynix.com> > --- > v4: remove VP_NOTIFY macro and legacy PCI support, add > virtio_ccw_kvm_notify_with_data to virtio_ccw > v3: support feature in virtio_ccw, remove VM_NOTIFY, use avail_idx_shadow, > remove byte swap, rename to vring_notification_data > v2: reject the feature in virtio_ccw, replace __le32 with u32 > > Tested with disabled VIRTIO_F_NOTIFICATION_DATA on qemu-system-s...

...virtio/virtio_mmio.c b/drivers/virtio/virtio_mmio.c > index 3ff746e3f24a..0e13da17fe0a 100644 > --- a/drivers/virtio/virtio_mmio.c > +++ b/drivers/virtio/virtio_mmio.c > @@ -285,6 +285,19 @@ static bool vm_notify(struct virtqueue *vq) > return true; > } > > +static bool vm_notify_with_data(struct virtqueue *vq) > +{ > + struct virtio_mmio_device *vm_dev = to_virtio_mmio_device(vq->vdev); > + u32 data = vring_fill_notification_data(vq); > + > + writel(data, vm_dev->base + VIRTIO_MMIO_QUEUE_NOTIFY); > + > + return true; > +} > + > +#define VM_NOTIFY(...

...virtio/virtio_mmio.c b/drivers/virtio/virtio_mmio.c > index 3ff746e3f24a..0e13da17fe0a 100644 > --- a/drivers/virtio/virtio_mmio.c > +++ b/drivers/virtio/virtio_mmio.c > @@ -285,6 +285,19 @@ static bool vm_notify(struct virtqueue *vq) > return true; > } > > +static bool vm_notify_with_data(struct virtqueue *vq) > +{ > + struct virtio_mmio_device *vm_dev = to_virtio_mmio_device(vq->vdev); > + u32 data = vring_fill_notification_data(vq); > + > + writel(data, vm_dev->base + VIRTIO_MMIO_QUEUE_NOTIFY); > + > + return true; > +} > + > +#define VM_NOTIFY(...

...virtio/virtio_mmio.c b/drivers/virtio/virtio_mmio.c > index 3ff746e3f24a..7c16e622c33d 100644 > --- a/drivers/virtio/virtio_mmio.c > +++ b/drivers/virtio/virtio_mmio.c > @@ -285,6 +285,16 @@ static bool vm_notify(struct virtqueue *vq) > return true; > } > > +static bool vm_notify_with_data(struct virtqueue *vq) > +{ > + struct virtio_mmio_device *vm_dev = to_virtio_mmio_device(vq->vdev); > + u32 data = vring_notification_data(vq); > + > + writel(data, vm_dev->base + VIRTIO_MMIO_QUEUE_NOTIFY); > + > + return true; > +} > + > /* Notify all virtqueue...

...; > Add support for this feature for MMIO, channel I/O and modern PCI > transports. > > Signed-off-by: Viktor Prutyanov <viktor at daynix.com> > --- > v5: replace ternary operator with if-else > v4: remove VP_NOTIFY macro and legacy PCI support, add > virtio_ccw_kvm_notify_with_data to virtio_ccw > v3: support feature in virtio_ccw, remove VM_NOTIFY, use avail_idx_shadow, > remove byte swap, rename to vring_notification_data > v2: reject the feature in virtio_ccw, replace __le32 with u32 > > Tested with disabled VIRTIO_F_NOTIFICATION_DATA on qemu-system-s...

...p counter and 15-bit > available index. > > Add support for this feature for MMIO, channel I/O and modern PCI > transports. > > Signed-off-by: Viktor Prutyanov <viktor at daynix.com> > --- > v4: remove VP_NOTIFY macro and legacy PCI support, add > virtio_ccw_kvm_notify_with_data to virtio_ccw > v3: support feature in virtio_ccw, remove VM_NOTIFY, use avail_idx_shadow, > remove byte swap, rename to vring_notification_data > v2: reject the feature in virtio_ccw, replace __le32 with u32 > > Tested with disabled VIRTIO_F_NOTIFICATION_DATA on qemu-system-...

...a..0e13da17fe0a 100644 > > > --- a/drivers/virtio/virtio_mmio.c > > > +++ b/drivers/virtio/virtio_mmio.c > > > @@ -285,6 +285,19 @@ static bool vm_notify(struct virtqueue *vq) > > > return true; > > > } > > > > > > +static bool vm_notify_with_data(struct virtqueue *vq) > > > +{ > > > + struct virtio_mmio_device *vm_dev = to_virtio_mmio_device(vq->vdev); > > > + u32 data = vring_fill_notification_data(vq); > > > > Can we move this to the initialization? > > This data is new for each...

..._vq_info { > @@ -101,6 +106,9 @@ struct virtio_mmio_vq_info { > > /* the list node for the virtqueues list */ > struct list_head node; > + > + /* IRQ mapped to virtqueue */ > + unsigned int irq; > }; > > > @@ -297,7 +305,7 @@ static bool vm_notify_with_data(struct virtqueue *vq) > return true; > } > > -/* Notify all virtqueues on an interrupt. */ > +/* Notify all or some virtqueues on an interrupt. */ > static irqreturn_t vm_interrupt(int irq, void *opaque) > { > struct virtio_mmio_device *vm_dev = opaque; &g...

..._vq_info { > @@ -101,6 +106,9 @@ struct virtio_mmio_vq_info { > > /* the list node for the virtqueues list */ > struct list_head node; > + > + /* IRQ mapped to virtqueue */ > + unsigned int irq; > }; > > > @@ -297,7 +305,7 @@ static bool vm_notify_with_data(struct virtqueue *vq) > return true; > } > > -/* Notify all virtqueues on an interrupt. */ > +/* Notify all or some virtqueues on an interrupt. */ > static irqreturn_t vm_interrupt(int irq, void *opaque) > { > struct virtio_mmio_device *vm_dev = opaque; &g...