search for: 47ea6c3

...patible_node(NULL, NULL, "ibm,ultravisor") != NULL); > > +} > > Isn't this kind of slow? vring_use_dma_api is on > data path and supposed to be very fast. > > > diff --git a/drivers/virtio/virtio_ring.c b/drivers/virtio/virtio_ring.c > > index 21d464a..47ea6c3 100644 > > --- a/drivers/virtio/virtio_ring.c > > +++ b/drivers/virtio/virtio_ring.c > > @@ -141,8 +141,18 @@ struct vring_virtqueue { > > * unconditionally on data path. > > */ > > > > +#ifndef platform_forces_virtio_dma > > +static inline bool...

...patible_node(NULL, NULL, "ibm,ultravisor") != NULL); > > +} > > Isn't this kind of slow? vring_use_dma_api is on > data path and supposed to be very fast. > > > diff --git a/drivers/virtio/virtio_ring.c b/drivers/virtio/virtio_ring.c > > index 21d464a..47ea6c3 100644 > > --- a/drivers/virtio/virtio_ring.c > > +++ b/drivers/virtio/virtio_ring.c > > @@ -141,8 +141,18 @@ struct vring_virtqueue { > > * unconditionally on data path. > > */ > > > > +#ifndef platform_forces_virtio_dma > > +static inline bool...

...MAP API for all virtio devices. But there can also be some + * exceptions for individual devices like virtio balloon. + */ + return (of_find_compatible_node(NULL, NULL, "ibm,ultravisor") != NULL); +} diff --git a/drivers/virtio/virtio_ring.c b/drivers/virtio/virtio_ring.c index 21d464a..47ea6c3 100644 --- a/drivers/virtio/virtio_ring.c +++ b/drivers/virtio/virtio_ring.c @@ -141,8 +141,18 @@ struct vring_virtqueue { * unconditionally on data path. */ +#ifndef platform_forces_virtio_dma +static inline bool platform_forces_virtio_dma(struct virtio_device *vdev) +{ + return false; +} +#...

...MAP API for all virtio devices. But there can also be some + * exceptions for individual devices like virtio balloon. + */ + return (of_find_compatible_node(NULL, NULL, "ibm,ultravisor") != NULL); +} diff --git a/drivers/virtio/virtio_ring.c b/drivers/virtio/virtio_ring.c index 21d464a..47ea6c3 100644 --- a/drivers/virtio/virtio_ring.c +++ b/drivers/virtio/virtio_ring.c @@ -141,8 +141,18 @@ struct vring_virtqueue { * unconditionally on data path. */ +#ifndef platform_forces_virtio_dma +static inline bool platform_forces_virtio_dma(struct virtio_device *vdev) +{ + return false; +} +#...

...t; > > +} > > > > > > Isn't this kind of slow? vring_use_dma_api is on > > > data path and supposed to be very fast. > > > > > > > diff --git a/drivers/virtio/virtio_ring.c b/drivers/virtio/virtio_ring.c > > > > index 21d464a..47ea6c3 100644 > > > > --- a/drivers/virtio/virtio_ring.c > > > > +++ b/drivers/virtio/virtio_ring.c > > > > @@ -141,8 +141,18 @@ struct vring_virtqueue { > > > > * unconditionally on data path. > > > > */ > > > > > > >...

...t; > > +} > > > > > > Isn't this kind of slow? vring_use_dma_api is on > > > data path and supposed to be very fast. > > > > > > > diff --git a/drivers/virtio/virtio_ring.c b/drivers/virtio/virtio_ring.c > > > > index 21d464a..47ea6c3 100644 > > > > --- a/drivers/virtio/virtio_ring.c > > > > +++ b/drivers/virtio/virtio_ring.c > > > > @@ -141,8 +141,18 @@ struct vring_virtqueue { > > > > * unconditionally on data path. > > > > */ > > > > > > >...

...ultravisor") != NULL); > > > +} > > > > Isn't this kind of slow? vring_use_dma_api is on > > data path and supposed to be very fast. > > > > > diff --git a/drivers/virtio/virtio_ring.c b/drivers/virtio/virtio_ring.c > > > index 21d464a..47ea6c3 100644 > > > --- a/drivers/virtio/virtio_ring.c > > > +++ b/drivers/virtio/virtio_ring.c > > > @@ -141,8 +141,18 @@ struct vring_virtqueue { > > > * unconditionally on data path. > > > */ > > > > > > +#ifndef platform_forces_virti...

...ultravisor") != NULL); > > > +} > > > > Isn't this kind of slow? vring_use_dma_api is on > > data path and supposed to be very fast. > > > > > diff --git a/drivers/virtio/virtio_ring.c b/drivers/virtio/virtio_ring.c > > > index 21d464a..47ea6c3 100644 > > > --- a/drivers/virtio/virtio_ring.c > > > +++ b/drivers/virtio/virtio_ring.c > > > @@ -141,8 +141,18 @@ struct vring_virtqueue { > > > * unconditionally on data path. > > > */ > > > > > > +#ifndef platform_forces_virti...

...t; + */ > + return (of_find_compatible_node(NULL, NULL, "ibm,ultravisor") != NULL); > +} Isn't this kind of slow? vring_use_dma_api is on data path and supposed to be very fast. > diff --git a/drivers/virtio/virtio_ring.c b/drivers/virtio/virtio_ring.c > index 21d464a..47ea6c3 100644 > --- a/drivers/virtio/virtio_ring.c > +++ b/drivers/virtio/virtio_ring.c > @@ -141,8 +141,18 @@ struct vring_virtqueue { > * unconditionally on data path. > */ > > +#ifndef platform_forces_virtio_dma > +static inline bool platform_forces_virtio_dma(struct virti...

...> > > > > Isn't this kind of slow? vring_use_dma_api is on > > > > data path and supposed to be very fast. > > > > > > > > > diff --git a/drivers/virtio/virtio_ring.c b/drivers/virtio/virtio_ring.c > > > > > index 21d464a..47ea6c3 100644 > > > > > --- a/drivers/virtio/virtio_ring.c > > > > > +++ b/drivers/virtio/virtio_ring.c > > > > > @@ -141,8 +141,18 @@ struct vring_virtqueue { > > > > > * unconditionally on data path. > > > > > */ > > &g...

...t; > > +} > > > > > > Isn't this kind of slow? vring_use_dma_api is on > > > data path and supposed to be very fast. > > > > > > > diff --git a/drivers/virtio/virtio_ring.c b/drivers/virtio/virtio_ring.c > > > > index 21d464a..47ea6c3 100644 > > > > --- a/drivers/virtio/virtio_ring.c > > > > +++ b/drivers/virtio/virtio_ring.c > > > > @@ -141,8 +141,18 @@ struct vring_virtqueue { > > > > * unconditionally on data path. > > > > */ > > > > > > >...

...t; > > +} > > > > > > Isn't this kind of slow? vring_use_dma_api is on > > > data path and supposed to be very fast. > > > > > > > diff --git a/drivers/virtio/virtio_ring.c b/drivers/virtio/virtio_ring.c > > > > index 21d464a..47ea6c3 100644 > > > > --- a/drivers/virtio/virtio_ring.c > > > > +++ b/drivers/virtio/virtio_ring.c > > > > @@ -141,8 +141,18 @@ struct vring_virtqueue { > > > > * unconditionally on data path. > > > > */ > > > > > > >...

...; > Isn't this kind of slow? vring_use_dma_api is on > > > > > data path and supposed to be very fast. > > > > > > > > > > > diff --git a/drivers/virtio/virtio_ring.c b/drivers/virtio/virtio_ring.c > > > > > > index 21d464a..47ea6c3 100644 > > > > > > --- a/drivers/virtio/virtio_ring.c > > > > > > +++ b/drivers/virtio/virtio_ring.c > > > > > > @@ -141,8 +141,18 @@ struct vring_virtqueue { > > > > > > * unconditionally on data path. > > > > &g...