search for: vdpa_config_ops

On Tue, Feb 28, 2023 at 5:42?PM Xie Yongji <xieyongji at bytedance.com> wrote: > > This introduces set_irq_affinity callback in > vdpa_config_ops so that vdpa device driver can > get the interrupt affinity hint from the virtio > device driver. The interrupt affinity hint would > be needed by the interrupt affinity spreading > mechanism. > > Signed-off-by: Xie Yongji <xieyongji at bytedance.com> > --- > drivers/...

...} + +static struct vdpa_device *vd_get_vdpa(struct virtio_device *vdev) +{ + return to_virtio_vdpa_device(vdev)->vdpa; +} + +static void virtio_vdpa_get(struct virtio_device *vdev, unsigned offset, + void *buf, unsigned len) +{ + struct vdpa_device *vdpa = vd_get_vdpa(vdev); + const struct vdpa_config_ops *ops = vdpa->config; + + ops->get_config(vdpa, offset, buf, len); +} + +static void virtio_vdpa_set(struct virtio_device *vdev, unsigned offset, + const void *buf, unsigned len) +{ + struct vdpa_device *vdpa = vd_get_vdpa(vdev); + const struct vdpa_config_ops *ops = vdpa->config; + +...

...} + +static struct vdpa_device *vd_get_vdpa(struct virtio_device *vdev) +{ + return to_virtio_vdpa_device(vdev)->vdpa; +} + +static void virtio_vdpa_get(struct virtio_device *vdev, unsigned offset, + void *buf, unsigned len) +{ + struct vdpa_device *vdpa = vd_get_vdpa(vdev); + const struct vdpa_config_ops *ops = vdpa->config; + + ops->get_config(vdpa, offset, buf, len); +} + +static void virtio_vdpa_set(struct virtio_device *vdev, unsigned offset, + const void *buf, unsigned len) +{ + struct vdpa_device *vdpa = vd_get_vdpa(vdev); + const struct vdpa_config_ops *ops = vdpa->config; + +...

On 2020/7/28 ??12:24, Zhu Lingshan wrote: > This commit adds a new function get_vq_irq() in struct > vdpa_config_ops, which will return the irq number of a > virtqueue. > > Signed-off-by: Zhu Lingshan <lingshan.zhu at intel.com> > Suggested-by: Jason Wang <jasowang at redhat.com> > --- > include/linux/vdpa.h | 6 ++++++ > 1 file changed, 6 insertions(+) > > diff --git a/i...

...at is performing DMA > * @config: the configuration ops for this device. > * @index: device index > + * @features_valid: were features initialized? for legacy guests > */ > struct vdpa_device { > struct device dev; > struct device *dma_dev; > const struct vdpa_config_ops *config; > unsigned int index; > + bool features_valid; > }; > > /** > @@ -266,4 +268,36 @@ static inline struct device *vdpa_get_dma_dev(struct vdpa_device *vdev) > { > return vdev->dma_dev; > } > + > +static inline void vdpa_reset(struct vdpa_d...

...at is performing DMA > * @config: the configuration ops for this device. > * @index: device index > + * @features_valid: were features initialized? for legacy guests > */ > struct vdpa_device { > struct device dev; > struct device *dma_dev; > const struct vdpa_config_ops *config; > unsigned int index; > + bool features_valid; > }; > > /** > @@ -266,4 +268,36 @@ static inline struct device *vdpa_get_dma_dev(struct vdpa_device *vdev) > { > return vdev->dma_dev; > } > + > +static inline void vdpa_reset(struct vdpa_d...

...t; > +static void handle_vq_kick(struct vhost_work *work) > > +{ > > + struct vhost_virtqueue *vq = container_of(work, struct vhost_virtqueue, > > + poll.work); > > + struct vhost_vdpa *v = container_of(vq->dev, struct vhost_vdpa, vdev); > > + const struct vdpa_config_ops *ops = v->vdpa->config; > > + > > + ops->kick_vq(v->vdpa, vq - v->vqs); > > +} > > + > > +static irqreturn_t vhost_vdpa_virtqueue_cb(void *private) > > +{ > > + struct vhost_virtqueue *vq = private; > > + struct eventfd_ctx *call_ctx =...

...-- a/drivers/virtio/virtio_vdpa.c +++ b/drivers/virtio/virtio_vdpa.c @@ -112,6 +112,17 @@ static bool virtio_vdpa_notify(struct virtqueue *vq) return true; } +static bool virtio_vdpa_notify_with_data(struct virtqueue *vq) +{ + struct vdpa_device *vdpa = vd_get_vdpa(vq->vdev); + const struct vdpa_config_ops *ops = vdpa->config; + u32 data = vring_notification_data(vq); + + ops->kick_vq_with_data(vdpa, data); + + return true; +} + static irqreturn_t virtio_vdpa_config_cb(void *private) { struct virtio_vdpa_device *vd_dev = private; @@ -138,6 +149,7 @@ virtio_vdpa_setup_vq(struct virtio_device...

...VDPASIM_VENDOR_ID 0 > +#define VDPASIM_VRING_POLL_PERIOD 100 /* ms */ > +#define VDPASIM_NOTIFY_DEFVAL 0xffff > > static struct vdpasim *vdpa_to_sim(struct vdpa_device *vdpa) > { > @@ -246,6 +248,28 @@ static const struct dma_map_ops vdpasim_dma_ops = { > static const struct vdpa_config_ops vdpasim_config_ops; > static const struct vdpa_config_ops vdpasim_batch_config_ops; > > +static void vdpasim_notify_work(struct work_struct *work) > +{ > + struct vdpasim *vdpasim; > + u16 *val; > + > + vdpasim = container_of(work, struct vdpasim, notify_w...

...+ return v; > +} > + > +static void handle_vq_kick(struct vhost_work *work) > +{ > + struct vhost_virtqueue *vq = container_of(work, struct vhost_virtqueue, > + poll.work); > + struct vhost_vdpa *v = container_of(vq->dev, struct vhost_vdpa, vdev); > + const struct vdpa_config_ops *ops = v->vdpa->config; > + > + ops->kick_vq(v->vdpa, vq - v->vqs); > +} > + > +static irqreturn_t vhost_vdpa_virtqueue_cb(void *private) > +{ > + struct vhost_virtqueue *vq = private; > + struct eventfd_ctx *call_ctx = vq->call_ctx; > + > + if (call_...

...+ return v; > +} > + > +static void handle_vq_kick(struct vhost_work *work) > +{ > + struct vhost_virtqueue *vq = container_of(work, struct vhost_virtqueue, > + poll.work); > + struct vhost_vdpa *v = container_of(vq->dev, struct vhost_vdpa, vdev); > + const struct vdpa_config_ops *ops = v->vdpa->config; > + > + ops->kick_vq(v->vdpa, vq - v->vqs); > +} > + > +static irqreturn_t vhost_vdpa_virtqueue_cb(void *private) > +{ > + struct vhost_virtqueue *vq = private; > + struct eventfd_ctx *call_ctx = vq->call_ctx; > + > + if (call_...

...ation_area { * @dma_dev: the actual device that is performing DMA * @config: the configuration ops for this device. * @index: device index + * @features_valid: were features initialized? for legacy guests */ struct vdpa_device { struct device dev; struct device *dma_dev; const struct vdpa_config_ops *config; unsigned int index; + bool features_valid; }; /** @@ -266,4 +268,36 @@ static inline struct device *vdpa_get_dma_dev(struct vdpa_device *vdev) { return vdev->dma_dev; } + +static inline void vdpa_reset(struct vdpa_device *vdev) +{ + const struct vdpa_config_ops *ops = v...

...ation_area { * @dma_dev: the actual device that is performing DMA * @config: the configuration ops for this device. * @index: device index + * @features_valid: were features initialized? for legacy guests */ struct vdpa_device { struct device dev; struct device *dma_dev; const struct vdpa_config_ops *config; unsigned int index; + bool features_valid; }; /** @@ -266,4 +268,36 @@ static inline struct device *vdpa_get_dma_dev(struct vdpa_device *vdev) { return vdev->dma_dev; } + +static inline void vdpa_reset(struct vdpa_device *vdev) +{ + const struct vdpa_config_ops *ops = v...

...fig: the configuration ops for this device. > > * @index: device index > > + * @features_valid: were features initialized? for legacy guests > > */ > > struct vdpa_device { > > struct device dev; > > struct device *dma_dev; > > const struct vdpa_config_ops *config; > > unsigned int index; > > + bool features_valid; > > }; > > /** > > @@ -266,4 +268,36 @@ static inline struct device *vdpa_get_dma_dev(struct vdpa_device *vdev) > > { > > return vdev->dma_dev; > > } > > + > > +s...

Hi all: This series tries to support batched IOTLB updating vhost-vdpa. Currently vhost-vdpa accepts userspace mapping via IOTLB API, and it can only forward one mapping to IOMMU or device through IOMMU API or dma_map(). Though set_map() is deisgend to have the capability to pass an rbtree based mapping to vDPA device, it's still be called at least once for each VHOST_IOTLB_UPDATE or

Hi all: This series tries to support batched IOTLB updating vhost-vdpa. Currently vhost-vdpa accepts userspace mapping via IOTLB API, and it can only forward one mapping to IOMMU or device through IOMMU API or dma_map(). Though set_map() is designed to have the capability to pass an rbtree based mapping to vDPA device, it's still be called at least once for each VHOST_IOTLB_UPDATE or

...= vdpa_to_snet(vdev); + int ret; + + ret = snet_resume_dev(snet); + if (ret) + SNET_ERR(snet->pdev, "SNET[%u] resume failed, err: %d\n", snet->sid, ret); + else + SNET_DBG(snet->pdev, "Resume SNET[%u] device\n", snet->sid); + + return ret; +} + static const struct vdpa_config_ops snet_config_ops = { .set_vq_address = snet_set_vq_address, .set_vq_num = snet_set_vq_num, @@ -536,6 +550,7 @@ static const struct vdpa_config_ops snet_config_ops = { .get_config = snet_get_config, .set_config = snet_set_config, .suspend = snet_...

...d9d8f01c..20250c3418b2 100644 --- a/drivers/vhost/vdpa.c +++ b/drivers/vhost/vdpa.c @@ -219,6 +219,28 @@ static int vhost_vdpa_reset(struct vhost_vdpa *v) return vdpa_reset(vdpa); } +static long vhost_vdpa_bind_mm(struct vhost_vdpa *v) +{ + struct vdpa_device *vdpa = v->vdpa; + const struct vdpa_config_ops *ops = vdpa->config; + + if (!vdpa->use_va || !ops->bind_mm) + return 0; + + return ops->bind_mm(vdpa, v->vdev.mm); +} + +static void vhost_vdpa_unbind_mm(struct vhost_vdpa *v) +{ + struct vdpa_device *vdpa = v->vdpa; + const struct vdpa_config_ops *ops = vdpa->config; + + if...

...+++ b/drivers/vhost/vdpa.c > @@ -219,6 +219,28 @@ static int vhost_vdpa_reset(struct vhost_vdpa *v) > return vdpa_reset(vdpa); > } > > +static long vhost_vdpa_bind_mm(struct vhost_vdpa *v) > +{ > + struct vdpa_device *vdpa = v->vdpa; > + const struct vdpa_config_ops *ops = vdpa->config; > + > + if (!vdpa->use_va || !ops->bind_mm) > + return 0; > + > + return ops->bind_mm(vdpa, v->vdev.mm); > +} > + > +static void vhost_vdpa_unbind_mm(struct vhost_vdpa *v) > +{ > + struct vdpa_device *...

...index c30eb55030be..4a9ddb44b2a7 100644 --- a/drivers/virtio/virtio_vdpa.c +++ b/drivers/virtio/virtio_vdpa.c @@ -57,9 +57,8 @@ static void virtio_vdpa_get(struct virtio_device *vdev, unsigned offset, void *buf, unsigned len) { struct vdpa_device *vdpa = vd_get_vdpa(vdev); - const struct vdpa_config_ops *ops = vdpa->config; - ops->get_config(vdpa, offset, buf, len); + vdpa_get_config(vdpa, offset, buf, len); } static void virtio_vdpa_set(struct virtio_device *vdev, unsigned offset, @@ -101,9 +100,8 @@ static void virtio_vdpa_set_status(struct virtio_device *vdev, u8 status) static voi...