138 lines
3.5 KiB
C
138 lines
3.5 KiB
C
/****************************************************************************
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****************************************************************************
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***
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*** This header was automatically generated from a Linux kernel header
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*** of the same name, to make information necessary for userspace to
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*** call into the kernel available to libc. It contains only constants,
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*** structures, and macros generated from the original header, and thus,
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*** contains no copyrightable information.
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***
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*** To edit the content of this header, modify the corresponding
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*** source file (e.g. under external/kernel-headers/original/) then
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*** run bionic/libc/kernel/tools/update_all.py
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***
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*** Any manual change here will be lost the next time this script will
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*** be run. You've been warned!
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***
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****************************************************************************
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****************************************************************************/
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#ifndef LINUX_IO_URING_H
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#define LINUX_IO_URING_H
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#include <linux/fs.h>
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#include <linux/types.h>
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struct io_uring_sqe {
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__u8 opcode;
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__u8 flags;
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__u16 ioprio;
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__s32 fd;
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union {
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__u64 off;
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__u64 addr2;
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};
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__u64 addr;
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__u32 len;
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union {
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__kernel_rwf_t rw_flags;
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__u32 fsync_flags;
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__u16 poll_events;
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__u32 sync_range_flags;
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__u32 msg_flags;
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__u32 timeout_flags;
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__u32 accept_flags;
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__u32 cancel_flags;
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};
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__u64 user_data;
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union {
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__u16 buf_index;
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__u64 __pad2[3];
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};
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};
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#define IOSQE_FIXED_FILE (1U << 0)
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#define IOSQE_IO_DRAIN (1U << 1)
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#define IOSQE_IO_LINK (1U << 2)
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#define IOSQE_IO_HARDLINK (1U << 3)
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#define IORING_SETUP_IOPOLL (1U << 0)
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#define IORING_SETUP_SQPOLL (1U << 1)
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#define IORING_SETUP_SQ_AFF (1U << 2)
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#define IORING_SETUP_CQSIZE (1U << 3)
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enum {
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IORING_OP_NOP,
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IORING_OP_READV,
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IORING_OP_WRITEV,
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IORING_OP_FSYNC,
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IORING_OP_READ_FIXED,
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IORING_OP_WRITE_FIXED,
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IORING_OP_POLL_ADD,
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IORING_OP_POLL_REMOVE,
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IORING_OP_SYNC_FILE_RANGE,
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IORING_OP_SENDMSG,
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IORING_OP_RECVMSG,
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IORING_OP_TIMEOUT,
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IORING_OP_TIMEOUT_REMOVE,
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IORING_OP_ACCEPT,
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IORING_OP_ASYNC_CANCEL,
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IORING_OP_LINK_TIMEOUT,
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IORING_OP_CONNECT,
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IORING_OP_LAST,
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};
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#define IORING_FSYNC_DATASYNC (1U << 0)
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#define IORING_TIMEOUT_ABS (1U << 0)
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struct io_uring_cqe {
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__u64 user_data;
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__s32 res;
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__u32 flags;
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};
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#define IORING_OFF_SQ_RING 0ULL
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#define IORING_OFF_CQ_RING 0x8000000ULL
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#define IORING_OFF_SQES 0x10000000ULL
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struct io_sqring_offsets {
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__u32 head;
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__u32 tail;
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__u32 ring_mask;
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__u32 ring_entries;
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__u32 flags;
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__u32 dropped;
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__u32 array;
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__u32 resv1;
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__u64 resv2;
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};
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#define IORING_SQ_NEED_WAKEUP (1U << 0)
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struct io_cqring_offsets {
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__u32 head;
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__u32 tail;
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__u32 ring_mask;
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__u32 ring_entries;
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__u32 overflow;
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__u32 cqes;
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__u64 resv[2];
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};
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#define IORING_ENTER_GETEVENTS (1U << 0)
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#define IORING_ENTER_SQ_WAKEUP (1U << 1)
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struct io_uring_params {
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__u32 sq_entries;
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__u32 cq_entries;
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__u32 flags;
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__u32 sq_thread_cpu;
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__u32 sq_thread_idle;
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__u32 features;
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__u32 resv[4];
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struct io_sqring_offsets sq_off;
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struct io_cqring_offsets cq_off;
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};
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#define IORING_FEAT_SINGLE_MMAP (1U << 0)
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#define IORING_FEAT_NODROP (1U << 1)
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#define IORING_FEAT_SUBMIT_STABLE (1U << 2)
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#define IORING_REGISTER_BUFFERS 0
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#define IORING_UNREGISTER_BUFFERS 1
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#define IORING_REGISTER_FILES 2
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#define IORING_UNREGISTER_FILES 3
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#define IORING_REGISTER_EVENTFD 4
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#define IORING_UNREGISTER_EVENTFD 5
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#define IORING_REGISTER_FILES_UPDATE 6
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struct io_uring_files_update {
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__u32 offset;
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__u32 resv;
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__aligned_u64 fds;
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};
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#endif
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