virtio_ring.h revision 655a7c081f83b8351ed5f11a6c6accd9458293a8
1a67e4de6620b570dabe0f92985228af0d0204f2cNick Kralevich/**************************************************************************** 2a67e4de6620b570dabe0f92985228af0d0204f2cNick Kralevich **************************************************************************** 3a67e4de6620b570dabe0f92985228af0d0204f2cNick Kralevich *** 4a67e4de6620b570dabe0f92985228af0d0204f2cNick Kralevich *** This header was automatically generated from a Linux kernel header 5a67e4de6620b570dabe0f92985228af0d0204f2cNick Kralevich *** of the same name, to make information necessary for userspace to 6a67e4de6620b570dabe0f92985228af0d0204f2cNick Kralevich *** call into the kernel available to libc. It contains only constants, 7a67e4de6620b570dabe0f92985228af0d0204f2cNick Kralevich *** structures, and macros generated from the original header, and thus, 8a67e4de6620b570dabe0f92985228af0d0204f2cNick Kralevich *** contains no copyrightable information. 9a67e4de6620b570dabe0f92985228af0d0204f2cNick Kralevich *** 10a67e4de6620b570dabe0f92985228af0d0204f2cNick Kralevich *** To edit the content of this header, modify the corresponding 11a67e4de6620b570dabe0f92985228af0d0204f2cNick Kralevich *** source file (e.g. under external/kernel-headers/original/) then 12a67e4de6620b570dabe0f92985228af0d0204f2cNick Kralevich *** run bionic/libc/kernel/tools/update_all.py 13a67e4de6620b570dabe0f92985228af0d0204f2cNick Kralevich *** 14a67e4de6620b570dabe0f92985228af0d0204f2cNick Kralevich *** Any manual change here will be lost the next time this script will 15a67e4de6620b570dabe0f92985228af0d0204f2cNick Kralevich *** be run. You've been warned! 16a67e4de6620b570dabe0f92985228af0d0204f2cNick Kralevich *** 17a67e4de6620b570dabe0f92985228af0d0204f2cNick Kralevich **************************************************************************** 18a67e4de6620b570dabe0f92985228af0d0204f2cNick Kralevich ****************************************************************************/ 19655a7c081f83b8351ed5f11a6c6accd9458293a8Ben Cheng#ifndef _UAPI_LINUX_VIRTIO_RING_H 20655a7c081f83b8351ed5f11a6c6accd9458293a8Ben Cheng#define _UAPI_LINUX_VIRTIO_RING_H 21655a7c081f83b8351ed5f11a6c6accd9458293a8Ben Cheng#include <linux/types.h> 22655a7c081f83b8351ed5f11a6c6accd9458293a8Ben Cheng#define VRING_DESC_F_NEXT 1 23655a7c081f83b8351ed5f11a6c6accd9458293a8Ben Cheng/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ 24655a7c081f83b8351ed5f11a6c6accd9458293a8Ben Cheng#define VRING_DESC_F_WRITE 2 25655a7c081f83b8351ed5f11a6c6accd9458293a8Ben Cheng#define VRING_DESC_F_INDIRECT 4 26655a7c081f83b8351ed5f11a6c6accd9458293a8Ben Cheng#define VRING_USED_F_NO_NOTIFY 1 27655a7c081f83b8351ed5f11a6c6accd9458293a8Ben Cheng#define VRING_AVAIL_F_NO_INTERRUPT 1 28655a7c081f83b8351ed5f11a6c6accd9458293a8Ben Cheng/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ 29655a7c081f83b8351ed5f11a6c6accd9458293a8Ben Cheng#define VIRTIO_RING_F_INDIRECT_DESC 28 30655a7c081f83b8351ed5f11a6c6accd9458293a8Ben Cheng#define VIRTIO_RING_F_EVENT_IDX 29 31655a7c081f83b8351ed5f11a6c6accd9458293a8Ben Chengstruct vring_desc { 32655a7c081f83b8351ed5f11a6c6accd9458293a8Ben Cheng __u64 addr; 33655a7c081f83b8351ed5f11a6c6accd9458293a8Ben Cheng/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ 34655a7c081f83b8351ed5f11a6c6accd9458293a8Ben Cheng __u32 len; 35655a7c081f83b8351ed5f11a6c6accd9458293a8Ben Cheng __u16 flags; 36655a7c081f83b8351ed5f11a6c6accd9458293a8Ben Cheng __u16 next; 37655a7c081f83b8351ed5f11a6c6accd9458293a8Ben Cheng}; 38655a7c081f83b8351ed5f11a6c6accd9458293a8Ben Cheng/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ 39655a7c081f83b8351ed5f11a6c6accd9458293a8Ben Chengstruct vring_avail { 40655a7c081f83b8351ed5f11a6c6accd9458293a8Ben Cheng __u16 flags; 41655a7c081f83b8351ed5f11a6c6accd9458293a8Ben Cheng __u16 idx; 42655a7c081f83b8351ed5f11a6c6accd9458293a8Ben Cheng __u16 ring[]; 43655a7c081f83b8351ed5f11a6c6accd9458293a8Ben Cheng/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ 44655a7c081f83b8351ed5f11a6c6accd9458293a8Ben Cheng}; 45655a7c081f83b8351ed5f11a6c6accd9458293a8Ben Chengstruct vring_used_elem { 46655a7c081f83b8351ed5f11a6c6accd9458293a8Ben Cheng __u32 id; 47655a7c081f83b8351ed5f11a6c6accd9458293a8Ben Cheng __u32 len; 48655a7c081f83b8351ed5f11a6c6accd9458293a8Ben Cheng/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ 49655a7c081f83b8351ed5f11a6c6accd9458293a8Ben Cheng}; 50655a7c081f83b8351ed5f11a6c6accd9458293a8Ben Chengstruct vring_used { 51655a7c081f83b8351ed5f11a6c6accd9458293a8Ben Cheng __u16 flags; 52655a7c081f83b8351ed5f11a6c6accd9458293a8Ben Cheng __u16 idx; 53655a7c081f83b8351ed5f11a6c6accd9458293a8Ben Cheng/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ 54655a7c081f83b8351ed5f11a6c6accd9458293a8Ben Cheng struct vring_used_elem ring[]; 55655a7c081f83b8351ed5f11a6c6accd9458293a8Ben Cheng}; 56655a7c081f83b8351ed5f11a6c6accd9458293a8Ben Chengstruct vring { 57655a7c081f83b8351ed5f11a6c6accd9458293a8Ben Cheng unsigned int num; 58655a7c081f83b8351ed5f11a6c6accd9458293a8Ben Cheng/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ 59655a7c081f83b8351ed5f11a6c6accd9458293a8Ben Cheng struct vring_desc *desc; 60655a7c081f83b8351ed5f11a6c6accd9458293a8Ben Cheng struct vring_avail *avail; 61655a7c081f83b8351ed5f11a6c6accd9458293a8Ben Cheng struct vring_used *used; 62655a7c081f83b8351ed5f11a6c6accd9458293a8Ben Cheng}; 63655a7c081f83b8351ed5f11a6c6accd9458293a8Ben Cheng/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ 64655a7c081f83b8351ed5f11a6c6accd9458293a8Ben Cheng#define vring_used_event(vr) ((vr)->avail->ring[(vr)->num]) 65655a7c081f83b8351ed5f11a6c6accd9458293a8Ben Cheng#define vring_avail_event(vr) (*(__u16 *)&(vr)->used->ring[(vr)->num]) 66a67e4de6620b570dabe0f92985228af0d0204f2cNick Kralevich#endif 67