diff options
Diffstat (limited to 'drivers/vdpa/vdpa_user/vduse_dev.c')
| -rw-r--r-- | drivers/vdpa/vdpa_user/vduse_dev.c | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/drivers/vdpa/vdpa_user/vduse_dev.c b/drivers/vdpa/vdpa_user/vduse_dev.c index 1d24da79c3..73c89701fc 100644 --- a/drivers/vdpa/vdpa_user/vduse_dev.c +++ b/drivers/vdpa/vdpa_user/vduse_dev.c @@ -541,6 +541,17 @@ static void vduse_vdpa_set_vq_num(struct vdpa_device *vdpa, u16 idx, u32 num) vq->num = num; } +static u16 vduse_vdpa_get_vq_size(struct vdpa_device *vdpa, u16 idx) +{ + struct vduse_dev *dev = vdpa_to_vduse(vdpa); + struct vduse_virtqueue *vq = dev->vqs[idx]; + + if (vq->num) + return vq->num; + else + return vq->num_max; +} + static void vduse_vdpa_set_vq_ready(struct vdpa_device *vdpa, u16 idx, bool ready) { @@ -773,6 +784,7 @@ static const struct vdpa_config_ops vduse_vdpa_config_ops = { .kick_vq = vduse_vdpa_kick_vq, .set_vq_cb = vduse_vdpa_set_vq_cb, .set_vq_num = vduse_vdpa_set_vq_num, + .get_vq_size = vduse_vdpa_get_vq_size, .set_vq_ready = vduse_vdpa_set_vq_ready, .get_vq_ready = vduse_vdpa_get_vq_ready, .set_vq_state = vduse_vdpa_set_vq_state, @@ -798,6 +810,26 @@ static const struct vdpa_config_ops vduse_vdpa_config_ops = { .free = vduse_vdpa_free, }; +static void vduse_dev_sync_single_for_device(struct device *dev, + dma_addr_t dma_addr, size_t size, + enum dma_data_direction dir) +{ + struct vduse_dev *vdev = dev_to_vduse(dev); + struct vduse_iova_domain *domain = vdev->domain; + + vduse_domain_sync_single_for_device(domain, dma_addr, size, dir); +} + +static void vduse_dev_sync_single_for_cpu(struct device *dev, + dma_addr_t dma_addr, size_t size, + enum dma_data_direction dir) +{ + struct vduse_dev *vdev = dev_to_vduse(dev); + struct vduse_iova_domain *domain = vdev->domain; + + vduse_domain_sync_single_for_cpu(domain, dma_addr, size, dir); +} + static dma_addr_t vduse_dev_map_page(struct device *dev, struct page *page, unsigned long offset, size_t size, enum dma_data_direction dir, @@ -858,6 +890,8 @@ static size_t vduse_dev_max_mapping_size(struct device *dev) } static const struct dma_map_ops vduse_dev_dma_ops = { + .sync_single_for_device = vduse_dev_sync_single_for_device, + .sync_single_for_cpu = vduse_dev_sync_single_for_cpu, .map_page = vduse_dev_map_page, .unmap_page = vduse_dev_unmap_page, .alloc = vduse_dev_alloc_coherent, |