| Ben Cheng | 655a7c0 | 2013-10-16 16:09:24 -0700 | [diff] [blame^] | 1 | /**************************************************************************** |
| 2 | **************************************************************************** |
| 3 | *** |
| 4 | *** This header was automatically generated from a Linux kernel header |
| 5 | *** of the same name, to make information necessary for userspace to |
| 6 | *** call into the kernel available to libc. It contains only constants, |
| 7 | *** structures, and macros generated from the original header, and thus, |
| 8 | *** contains no copyrightable information. |
| 9 | *** |
| 10 | *** To edit the content of this header, modify the corresponding |
| 11 | *** source file (e.g. under external/kernel-headers/original/) then |
| 12 | *** run bionic/libc/kernel/tools/update_all.py |
| 13 | *** |
| 14 | *** Any manual change here will be lost the next time this script will |
| 15 | *** be run. You've been warned! |
| 16 | *** |
| 17 | **************************************************************************** |
| 18 | ****************************************************************************/ |
| 19 | #ifndef _UAPI_LINUX_VIRTIO_RING_H |
| 20 | #define _UAPI_LINUX_VIRTIO_RING_H |
| 21 | #include <linux/types.h> |
| 22 | #define VRING_DESC_F_NEXT 1 |
| 23 | /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ |
| 24 | #define VRING_DESC_F_WRITE 2 |
| 25 | #define VRING_DESC_F_INDIRECT 4 |
| 26 | #define VRING_USED_F_NO_NOTIFY 1 |
| 27 | #define VRING_AVAIL_F_NO_INTERRUPT 1 |
| 28 | /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ |
| 29 | #define VIRTIO_RING_F_INDIRECT_DESC 28 |
| 30 | #define VIRTIO_RING_F_EVENT_IDX 29 |
| 31 | struct vring_desc { |
| 32 | __u64 addr; |
| 33 | /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ |
| 34 | __u32 len; |
| 35 | __u16 flags; |
| 36 | __u16 next; |
| 37 | }; |
| 38 | /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ |
| 39 | struct vring_avail { |
| 40 | __u16 flags; |
| 41 | __u16 idx; |
| 42 | __u16 ring[]; |
| 43 | /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ |
| 44 | }; |
| 45 | struct vring_used_elem { |
| 46 | __u32 id; |
| 47 | __u32 len; |
| 48 | /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ |
| 49 | }; |
| 50 | struct vring_used { |
| 51 | __u16 flags; |
| 52 | __u16 idx; |
| 53 | /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ |
| 54 | struct vring_used_elem ring[]; |
| 55 | }; |
| 56 | struct vring { |
| 57 | unsigned int num; |
| 58 | /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ |
| 59 | struct vring_desc *desc; |
| 60 | struct vring_avail *avail; |
| 61 | struct vring_used *used; |
| 62 | }; |
| 63 | /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ |
| 64 | #define vring_used_event(vr) ((vr)->avail->ring[(vr)->num]) |
| 65 | #define vring_avail_event(vr) (*(__u16 *)&(vr)->used->ring[(vr)->num]) |
| 66 | #endif |