virtio_ring.h revision 11cd02dfb91661c65134cac258cf5924270e9d2
111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert/**************************************************************************** 211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert **************************************************************************** 311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert *** 411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert *** This header was automatically generated from a Linux kernel header 511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert *** of the same name, to make information necessary for userspace to 611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert *** call into the kernel available to libc. It contains only constants, 711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert *** structures, and macros generated from the original header, and thus, 811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert *** contains no copyrightable information. 911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert *** 1011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert *** To edit the content of this header, modify the corresponding 1111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert *** source file (e.g. under external/kernel-headers/original/) then 1211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert *** run bionic/libc/kernel/tools/update_all.py 1311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert *** 1411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert *** Any manual change here will be lost the next time this script will 1511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert *** be run. You've been warned! 1611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert *** 1711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert **************************************************************************** 1811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert ****************************************************************************/ 1911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#ifndef _UAPI_LINUX_VIRTIO_RING_H 2011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define _UAPI_LINUX_VIRTIO_RING_H 2111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#include <linux/types.h> 2211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define VRING_DESC_F_NEXT 1 2311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ 2411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define VRING_DESC_F_WRITE 2 2511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define VRING_DESC_F_INDIRECT 4 2611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define VRING_USED_F_NO_NOTIFY 1 2711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define VRING_AVAIL_F_NO_INTERRUPT 1 2811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ 2911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define VIRTIO_RING_F_INDIRECT_DESC 28 3011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define VIRTIO_RING_F_EVENT_IDX 29 3111cd02dfb91661c65134cac258cf5924270e9d2Dan Albertstruct vring_desc { 3211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert __u64 addr; 3311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ 3411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert __u32 len; 3511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert __u16 flags; 3611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert __u16 next; 3711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert}; 3811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ 3911cd02dfb91661c65134cac258cf5924270e9d2Dan Albertstruct vring_avail { 4011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert __u16 flags; 4111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert __u16 idx; 4211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert __u16 ring[]; 4311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ 4411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert}; 4511cd02dfb91661c65134cac258cf5924270e9d2Dan Albertstruct vring_used_elem { 4611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert __u32 id; 4711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert __u32 len; 4811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ 4911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert}; 5011cd02dfb91661c65134cac258cf5924270e9d2Dan Albertstruct vring_used { 5111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert __u16 flags; 5211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert __u16 idx; 5311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ 5411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert struct vring_used_elem ring[]; 5511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert}; 5611cd02dfb91661c65134cac258cf5924270e9d2Dan Albertstruct vring { 5711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert unsigned int num; 5811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ 5911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert struct vring_desc *desc; 6011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert struct vring_avail *avail; 6111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert struct vring_used *used; 6211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert}; 6311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ 6411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define vring_used_event(vr) ((vr)->avail->ring[(vr)->num]) 6511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define vring_avail_event(vr) (*(__u16 *)&(vr)->used->ring[(vr)->num]) 6611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#endif 67