diff options
Diffstat (limited to 'include/linux/virtio.h')
| -rw-r--r-- | include/linux/virtio.h | 14 |
1 files changed, 10 insertions, 4 deletions
diff --git a/include/linux/virtio.h b/include/linux/virtio.h index 4d16c13d0df5..db31fc6f4f1f 100644 --- a/include/linux/virtio.h +++ b/include/linux/virtio.h @@ -11,6 +11,7 @@ #include <linux/gfp.h> #include <linux/dma-mapping.h> #include <linux/completion.h> +#include <linux/virtio_features.h> /** * struct virtqueue - a queue to register buffers for sending or receiving. @@ -141,7 +142,9 @@ struct virtio_admin_cmd { * @config: the configuration ops for this device. * @vringh_config: configuration ops for host vrings. * @vqs: the list of virtqueues for this device. - * @features: the features supported by both driver and device. + * @features: the 64 lower features supported by both driver and device. + * @features_array: the full features space supported by both driver and + * device. * @priv: private pointer for the driver's use. * @debugfs_dir: debugfs directory entry. * @debugfs_filter_features: features to be filtered set by debugfs. @@ -159,11 +162,11 @@ struct virtio_device { const struct virtio_config_ops *config; const struct vringh_config_ops *vringh_config; struct list_head vqs; - u64 features; + VIRTIO_DECLARE_FEATURES(features); void *priv; #ifdef CONFIG_VIRTIO_DEBUG struct dentry *debugfs_dir; - u64 debugfs_filter_features; + u64 debugfs_filter_features[VIRTIO_FEATURES_DWORDS]; #endif }; @@ -196,7 +199,7 @@ int virtio_device_reset_done(struct virtio_device *dev); size_t virtio_max_dma_size(const struct virtio_device *vdev); #define virtio_device_for_each_vq(vdev, vq) \ - list_for_each_entry(vq, &vdev->vqs, list) + list_for_each_entry(vq, &(vdev)->vqs, list) /** * struct virtio_driver - operations for a virtio I/O driver @@ -220,6 +223,8 @@ size_t virtio_max_dma_size(const struct virtio_device *vdev); * occurs. * @reset_done: optional function to call after transport specific reset * operation has finished. + * @shutdown: synchronize with the device on shutdown. If provided, replaces + * the virtio core implementation. */ struct virtio_driver { struct device_driver driver; @@ -237,6 +242,7 @@ struct virtio_driver { int (*restore)(struct virtio_device *dev); int (*reset_prepare)(struct virtio_device *dev); int (*reset_done)(struct virtio_device *dev); + void (*shutdown)(struct virtio_device *dev); }; #define drv_to_virtio(__drv) container_of_const(__drv, struct virtio_driver, driver) |