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| author | Ben Cheng <bccheng@google.com> | 2013-10-16 23:17:52 +0000 |
|---|---|---|
| committer | Gerrit Code Review <noreply-gerritcodereview@google.com> | 2013-10-16 23:17:52 +0000 |
| commit | 3fdd6b83379f46d2ae78f376b3630f9d481d6dbb (patch) | |
| tree | a26009dff2011d1fd720440c7b2c67178171714c /libc/kernel/uapi/linux/virtio_ring.h | |
| parent | bffe261a1fcb2099e2188e2e4ca65209b64bc75a (diff) | |
| parent | 655a7c081f83b8351ed5f11a6c6accd9458293a8 (diff) | |
| download | bionic-3fdd6b83379f46d2ae78f376b3630f9d481d6dbb.zip bionic-3fdd6b83379f46d2ae78f376b3630f9d481d6dbb.tar.gz bionic-3fdd6b83379f46d2ae78f376b3630f9d481d6dbb.tar.bz2 | |
Merge "Add processed uapi kernel headers (common and aarch64-specific)"
Diffstat (limited to 'libc/kernel/uapi/linux/virtio_ring.h')
| -rw-r--r-- | libc/kernel/uapi/linux/virtio_ring.h | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/libc/kernel/uapi/linux/virtio_ring.h b/libc/kernel/uapi/linux/virtio_ring.h new file mode 100644 index 0000000..05740e7 --- /dev/null +++ b/libc/kernel/uapi/linux/virtio_ring.h @@ -0,0 +1,66 @@ +/**************************************************************************** + **************************************************************************** + *** + *** This header was automatically generated from a Linux kernel header + *** of the same name, to make information necessary for userspace to + *** call into the kernel available to libc. It contains only constants, + *** structures, and macros generated from the original header, and thus, + *** contains no copyrightable information. + *** + *** To edit the content of this header, modify the corresponding + *** source file (e.g. under external/kernel-headers/original/) then + *** run bionic/libc/kernel/tools/update_all.py + *** + *** Any manual change here will be lost the next time this script will + *** be run. You've been warned! + *** + **************************************************************************** + ****************************************************************************/ +#ifndef _UAPI_LINUX_VIRTIO_RING_H +#define _UAPI_LINUX_VIRTIO_RING_H +#include <linux/types.h> +#define VRING_DESC_F_NEXT 1 +/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ +#define VRING_DESC_F_WRITE 2 +#define VRING_DESC_F_INDIRECT 4 +#define VRING_USED_F_NO_NOTIFY 1 +#define VRING_AVAIL_F_NO_INTERRUPT 1 +/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ +#define VIRTIO_RING_F_INDIRECT_DESC 28 +#define VIRTIO_RING_F_EVENT_IDX 29 +struct vring_desc { + __u64 addr; +/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ + __u32 len; + __u16 flags; + __u16 next; +}; +/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ +struct vring_avail { + __u16 flags; + __u16 idx; + __u16 ring[]; +/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ +}; +struct vring_used_elem { + __u32 id; + __u32 len; +/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ +}; +struct vring_used { + __u16 flags; + __u16 idx; +/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ + struct vring_used_elem ring[]; +}; +struct vring { + unsigned int num; +/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ + struct vring_desc *desc; + struct vring_avail *avail; + struct vring_used *used; +}; +/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ +#define vring_used_event(vr) ((vr)->avail->ring[(vr)->num]) +#define vring_avail_event(vr) (*(__u16 *)&(vr)->used->ring[(vr)->num]) +#endif |