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author | Michael S. Tsirkin <mst@redhat.com> | 2014-12-16 00:47:07 +0300 |
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committer | Michael S. Tsirkin <mst@redhat.com> | 2014-12-16 00:49:19 +0300 |
commit | 2d7ce0e8a704d1aedc4462817a4eade1c3b00fbe (patch) | |
tree | 2a1bbc31ee8c6c8fd11e62c5923245d9c9153ba7 /tools/virtio/linux/virtio_config.h | |
parent | d71de9ec6ba806104439d3a669befda84757b5af (diff) | |
download | linux-2d7ce0e8a704d1aedc4462817a4eade1c3b00fbe.tar.xz |
tools/virtio: more stubs
As usual, add more stubs to fix test build after main
codebase changes.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'tools/virtio/linux/virtio_config.h')
-rw-r--r-- | tools/virtio/linux/virtio_config.h | 70 |
1 files changed, 68 insertions, 2 deletions
diff --git a/tools/virtio/linux/virtio_config.h b/tools/virtio/linux/virtio_config.h index 83b27e8e9d72..806d683ab107 100644 --- a/tools/virtio/linux/virtio_config.h +++ b/tools/virtio/linux/virtio_config.h @@ -1,6 +1,72 @@ -#define VIRTIO_TRANSPORT_F_START 28 -#define VIRTIO_TRANSPORT_F_END 32 +#include <linux/virtio_byteorder.h> +#include <linux/virtio.h> +#include <uapi/linux/virtio_config.h> + +/* + * __virtio_test_bit - helper to test feature bits. For use by transports. + * Devices should normally use virtio_has_feature, + * which includes more checks. + * @vdev: the device + * @fbit: the feature bit + */ +static inline bool __virtio_test_bit(const struct virtio_device *vdev, + unsigned int fbit) +{ + return vdev->features & (1ULL << fbit); +} + +/** + * __virtio_set_bit - helper to set feature bits. For use by transports. + * @vdev: the device + * @fbit: the feature bit + */ +static inline void __virtio_set_bit(struct virtio_device *vdev, + unsigned int fbit) +{ + vdev->features |= (1ULL << fbit); +} + +/** + * __virtio_clear_bit - helper to clear feature bits. For use by transports. + * @vdev: the device + * @fbit: the feature bit + */ +static inline void __virtio_clear_bit(struct virtio_device *vdev, + unsigned int fbit) +{ + vdev->features &= ~(1ULL << fbit); +} #define virtio_has_feature(dev, feature) \ (__virtio_test_bit((dev), feature)) +static inline u16 virtio16_to_cpu(struct virtio_device *vdev, __virtio16 val) +{ + return __virtio16_to_cpu(virtio_has_feature(vdev, VIRTIO_F_VERSION_1), val); +} + +static inline __virtio16 cpu_to_virtio16(struct virtio_device *vdev, u16 val) +{ + return __cpu_to_virtio16(virtio_has_feature(vdev, VIRTIO_F_VERSION_1), val); +} + +static inline u32 virtio32_to_cpu(struct virtio_device *vdev, __virtio32 val) +{ + return __virtio32_to_cpu(virtio_has_feature(vdev, VIRTIO_F_VERSION_1), val); +} + +static inline __virtio32 cpu_to_virtio32(struct virtio_device *vdev, u32 val) +{ + return __cpu_to_virtio32(virtio_has_feature(vdev, VIRTIO_F_VERSION_1), val); +} + +static inline u64 virtio64_to_cpu(struct virtio_device *vdev, __virtio64 val) +{ + return __virtio64_to_cpu(virtio_has_feature(vdev, VIRTIO_F_VERSION_1), val); +} + +static inline __virtio64 cpu_to_virtio64(struct virtio_device *vdev, u64 val) +{ + return __cpu_to_virtio64(virtio_has_feature(vdev, VIRTIO_F_VERSION_1), val); +} + |