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 LINUX_IO_URING_H 20 #define LINUX_IO_URING_H 21 #include <linux/fs.h> 22 #include <linux/types.h> 23 struct io_uring_sqe { 24 __u8 opcode; 25 __u8 flags; 26 __u16 ioprio; 27 __s32 fd; 28 union { 29 __u64 off; 30 __u64 addr2; 31 }; 32 union { 33 __u64 addr; 34 __u64 splice_off_in; 35 }; 36 __u32 len; 37 union { 38 __kernel_rwf_t rw_flags; 39 __u32 fsync_flags; 40 __u16 poll_events; 41 __u32 poll32_events; 42 __u32 sync_range_flags; 43 __u32 msg_flags; 44 __u32 timeout_flags; 45 __u32 accept_flags; 46 __u32 cancel_flags; 47 __u32 open_flags; 48 __u32 statx_flags; 49 __u32 fadvise_advice; 50 __u32 splice_flags; 51 }; 52 __u64 user_data; 53 union { 54 struct { 55 union { 56 __u16 buf_index; 57 __u16 buf_group; 58 } __attribute__((packed)); 59 __u16 personality; 60 __s32 splice_fd_in; 61 }; 62 __u64 __pad2[3]; 63 }; 64 }; 65 enum { 66 IOSQE_FIXED_FILE_BIT, 67 IOSQE_IO_DRAIN_BIT, 68 IOSQE_IO_LINK_BIT, 69 IOSQE_IO_HARDLINK_BIT, 70 IOSQE_ASYNC_BIT, 71 IOSQE_BUFFER_SELECT_BIT, 72 }; 73 #define IOSQE_FIXED_FILE (1U << IOSQE_FIXED_FILE_BIT) 74 #define IOSQE_IO_DRAIN (1U << IOSQE_IO_DRAIN_BIT) 75 #define IOSQE_IO_LINK (1U << IOSQE_IO_LINK_BIT) 76 #define IOSQE_IO_HARDLINK (1U << IOSQE_IO_HARDLINK_BIT) 77 #define IOSQE_ASYNC (1U << IOSQE_ASYNC_BIT) 78 #define IOSQE_BUFFER_SELECT (1U << IOSQE_BUFFER_SELECT_BIT) 79 #define IORING_SETUP_IOPOLL (1U << 0) 80 #define IORING_SETUP_SQPOLL (1U << 1) 81 #define IORING_SETUP_SQ_AFF (1U << 2) 82 #define IORING_SETUP_CQSIZE (1U << 3) 83 #define IORING_SETUP_CLAMP (1U << 4) 84 #define IORING_SETUP_ATTACH_WQ (1U << 5) 85 #define IORING_SETUP_R_DISABLED (1U << 6) 86 enum { 87 IORING_OP_NOP, 88 IORING_OP_READV, 89 IORING_OP_WRITEV, 90 IORING_OP_FSYNC, 91 IORING_OP_READ_FIXED, 92 IORING_OP_WRITE_FIXED, 93 IORING_OP_POLL_ADD, 94 IORING_OP_POLL_REMOVE, 95 IORING_OP_SYNC_FILE_RANGE, 96 IORING_OP_SENDMSG, 97 IORING_OP_RECVMSG, 98 IORING_OP_TIMEOUT, 99 IORING_OP_TIMEOUT_REMOVE, 100 IORING_OP_ACCEPT, 101 IORING_OP_ASYNC_CANCEL, 102 IORING_OP_LINK_TIMEOUT, 103 IORING_OP_CONNECT, 104 IORING_OP_FALLOCATE, 105 IORING_OP_OPENAT, 106 IORING_OP_CLOSE, 107 IORING_OP_FILES_UPDATE, 108 IORING_OP_STATX, 109 IORING_OP_READ, 110 IORING_OP_WRITE, 111 IORING_OP_FADVISE, 112 IORING_OP_MADVISE, 113 IORING_OP_SEND, 114 IORING_OP_RECV, 115 IORING_OP_OPENAT2, 116 IORING_OP_EPOLL_CTL, 117 IORING_OP_SPLICE, 118 IORING_OP_PROVIDE_BUFFERS, 119 IORING_OP_REMOVE_BUFFERS, 120 IORING_OP_TEE, 121 IORING_OP_LAST, 122 }; 123 #define IORING_FSYNC_DATASYNC (1U << 0) 124 #define IORING_TIMEOUT_ABS (1U << 0) 125 #define SPLICE_F_FD_IN_FIXED (1U << 31) 126 struct io_uring_cqe { 127 __u64 user_data; 128 __s32 res; 129 __u32 flags; 130 }; 131 #define IORING_CQE_F_BUFFER (1U << 0) 132 enum { 133 IORING_CQE_BUFFER_SHIFT = 16, 134 }; 135 #define IORING_OFF_SQ_RING 0ULL 136 #define IORING_OFF_CQ_RING 0x8000000ULL 137 #define IORING_OFF_SQES 0x10000000ULL 138 struct io_sqring_offsets { 139 __u32 head; 140 __u32 tail; 141 __u32 ring_mask; 142 __u32 ring_entries; 143 __u32 flags; 144 __u32 dropped; 145 __u32 array; 146 __u32 resv1; 147 __u64 resv2; 148 }; 149 #define IORING_SQ_NEED_WAKEUP (1U << 0) 150 #define IORING_SQ_CQ_OVERFLOW (1U << 1) 151 struct io_cqring_offsets { 152 __u32 head; 153 __u32 tail; 154 __u32 ring_mask; 155 __u32 ring_entries; 156 __u32 overflow; 157 __u32 cqes; 158 __u32 flags; 159 __u32 resv1; 160 __u64 resv2; 161 }; 162 #define IORING_CQ_EVENTFD_DISABLED (1U << 0) 163 #define IORING_ENTER_GETEVENTS (1U << 0) 164 #define IORING_ENTER_SQ_WAKEUP (1U << 1) 165 #define IORING_ENTER_SQ_WAIT (1U << 2) 166 struct io_uring_params { 167 __u32 sq_entries; 168 __u32 cq_entries; 169 __u32 flags; 170 __u32 sq_thread_cpu; 171 __u32 sq_thread_idle; 172 __u32 features; 173 __u32 wq_fd; 174 __u32 resv[3]; 175 struct io_sqring_offsets sq_off; 176 struct io_cqring_offsets cq_off; 177 }; 178 #define IORING_FEAT_SINGLE_MMAP (1U << 0) 179 #define IORING_FEAT_NODROP (1U << 1) 180 #define IORING_FEAT_SUBMIT_STABLE (1U << 2) 181 #define IORING_FEAT_RW_CUR_POS (1U << 3) 182 #define IORING_FEAT_CUR_PERSONALITY (1U << 4) 183 #define IORING_FEAT_FAST_POLL (1U << 5) 184 #define IORING_FEAT_POLL_32BITS (1U << 6) 185 enum { 186 IORING_REGISTER_BUFFERS = 0, 187 IORING_UNREGISTER_BUFFERS = 1, 188 IORING_REGISTER_FILES = 2, 189 IORING_UNREGISTER_FILES = 3, 190 IORING_REGISTER_EVENTFD = 4, 191 IORING_UNREGISTER_EVENTFD = 5, 192 IORING_REGISTER_FILES_UPDATE = 6, 193 IORING_REGISTER_EVENTFD_ASYNC = 7, 194 IORING_REGISTER_PROBE = 8, 195 IORING_REGISTER_PERSONALITY = 9, 196 IORING_UNREGISTER_PERSONALITY = 10, 197 IORING_REGISTER_RESTRICTIONS = 11, 198 IORING_REGISTER_ENABLE_RINGS = 12, 199 IORING_REGISTER_LAST 200 }; 201 struct io_uring_files_update { 202 __u32 offset; 203 __u32 resv; 204 __aligned_u64 fds; 205 }; 206 #define IO_URING_OP_SUPPORTED (1U << 0) 207 struct io_uring_probe_op { 208 __u8 op; 209 __u8 resv; 210 __u16 flags; 211 __u32 resv2; 212 }; 213 struct io_uring_probe { 214 __u8 last_op; 215 __u8 ops_len; 216 __u16 resv; 217 __u32 resv2[3]; 218 struct io_uring_probe_op ops[0]; 219 }; 220 struct io_uring_restriction { 221 __u16 opcode; 222 union { 223 __u8 register_op; 224 __u8 sqe_op; 225 __u8 sqe_flags; 226 }; 227 __u8 resv; 228 __u32 resv2[3]; 229 }; 230 enum { 231 IORING_RESTRICTION_REGISTER_OP = 0, 232 IORING_RESTRICTION_SQE_OP = 1, 233 IORING_RESTRICTION_SQE_FLAGS_ALLOWED = 2, 234 IORING_RESTRICTION_SQE_FLAGS_REQUIRED = 3, 235 IORING_RESTRICTION_LAST 236 }; 237 #endif 238