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 __u32 rename_flags; 52 __u32 unlink_flags; 53 __u32 hardlink_flags; 54 }; 55 __u64 user_data; 56 union { 57 __u16 buf_index; 58 __u16 buf_group; 59 } __attribute__((packed)); 60 __u16 personality; 61 union { 62 __s32 splice_fd_in; 63 __u32 file_index; 64 }; 65 __u64 __pad2[2]; 66 }; 67 enum { 68 IOSQE_FIXED_FILE_BIT, 69 IOSQE_IO_DRAIN_BIT, 70 IOSQE_IO_LINK_BIT, 71 IOSQE_IO_HARDLINK_BIT, 72 IOSQE_ASYNC_BIT, 73 IOSQE_BUFFER_SELECT_BIT, 74 IOSQE_CQE_SKIP_SUCCESS_BIT, 75 }; 76 #define IOSQE_FIXED_FILE (1U << IOSQE_FIXED_FILE_BIT) 77 #define IOSQE_IO_DRAIN (1U << IOSQE_IO_DRAIN_BIT) 78 #define IOSQE_IO_LINK (1U << IOSQE_IO_LINK_BIT) 79 #define IOSQE_IO_HARDLINK (1U << IOSQE_IO_HARDLINK_BIT) 80 #define IOSQE_ASYNC (1U << IOSQE_ASYNC_BIT) 81 #define IOSQE_BUFFER_SELECT (1U << IOSQE_BUFFER_SELECT_BIT) 82 #define IOSQE_CQE_SKIP_SUCCESS (1U << IOSQE_CQE_SKIP_SUCCESS_BIT) 83 #define IORING_SETUP_IOPOLL (1U << 0) 84 #define IORING_SETUP_SQPOLL (1U << 1) 85 #define IORING_SETUP_SQ_AFF (1U << 2) 86 #define IORING_SETUP_CQSIZE (1U << 3) 87 #define IORING_SETUP_CLAMP (1U << 4) 88 #define IORING_SETUP_ATTACH_WQ (1U << 5) 89 #define IORING_SETUP_R_DISABLED (1U << 6) 90 enum { 91 IORING_OP_NOP, 92 IORING_OP_READV, 93 IORING_OP_WRITEV, 94 IORING_OP_FSYNC, 95 IORING_OP_READ_FIXED, 96 IORING_OP_WRITE_FIXED, 97 IORING_OP_POLL_ADD, 98 IORING_OP_POLL_REMOVE, 99 IORING_OP_SYNC_FILE_RANGE, 100 IORING_OP_SENDMSG, 101 IORING_OP_RECVMSG, 102 IORING_OP_TIMEOUT, 103 IORING_OP_TIMEOUT_REMOVE, 104 IORING_OP_ACCEPT, 105 IORING_OP_ASYNC_CANCEL, 106 IORING_OP_LINK_TIMEOUT, 107 IORING_OP_CONNECT, 108 IORING_OP_FALLOCATE, 109 IORING_OP_OPENAT, 110 IORING_OP_CLOSE, 111 IORING_OP_FILES_UPDATE, 112 IORING_OP_STATX, 113 IORING_OP_READ, 114 IORING_OP_WRITE, 115 IORING_OP_FADVISE, 116 IORING_OP_MADVISE, 117 IORING_OP_SEND, 118 IORING_OP_RECV, 119 IORING_OP_OPENAT2, 120 IORING_OP_EPOLL_CTL, 121 IORING_OP_SPLICE, 122 IORING_OP_PROVIDE_BUFFERS, 123 IORING_OP_REMOVE_BUFFERS, 124 IORING_OP_TEE, 125 IORING_OP_SHUTDOWN, 126 IORING_OP_RENAMEAT, 127 IORING_OP_UNLINKAT, 128 IORING_OP_MKDIRAT, 129 IORING_OP_SYMLINKAT, 130 IORING_OP_LINKAT, 131 IORING_OP_LAST, 132 }; 133 #define IORING_FSYNC_DATASYNC (1U << 0) 134 #define IORING_TIMEOUT_ABS (1U << 0) 135 #define IORING_TIMEOUT_UPDATE (1U << 1) 136 #define IORING_TIMEOUT_BOOTTIME (1U << 2) 137 #define IORING_TIMEOUT_REALTIME (1U << 3) 138 #define IORING_LINK_TIMEOUT_UPDATE (1U << 4) 139 #define IORING_TIMEOUT_ETIME_SUCCESS (1U << 5) 140 #define IORING_TIMEOUT_CLOCK_MASK (IORING_TIMEOUT_BOOTTIME | IORING_TIMEOUT_REALTIME) 141 #define IORING_TIMEOUT_UPDATE_MASK (IORING_TIMEOUT_UPDATE | IORING_LINK_TIMEOUT_UPDATE) 142 #define SPLICE_F_FD_IN_FIXED (1U << 31) 143 #define IORING_POLL_ADD_MULTI (1U << 0) 144 #define IORING_POLL_UPDATE_EVENTS (1U << 1) 145 #define IORING_POLL_UPDATE_USER_DATA (1U << 2) 146 struct io_uring_cqe { 147 __u64 user_data; 148 __s32 res; 149 __u32 flags; 150 }; 151 #define IORING_CQE_F_BUFFER (1U << 0) 152 #define IORING_CQE_F_MORE (1U << 1) 153 enum { 154 IORING_CQE_BUFFER_SHIFT = 16, 155 }; 156 #define IORING_OFF_SQ_RING 0ULL 157 #define IORING_OFF_CQ_RING 0x8000000ULL 158 #define IORING_OFF_SQES 0x10000000ULL 159 struct io_sqring_offsets { 160 __u32 head; 161 __u32 tail; 162 __u32 ring_mask; 163 __u32 ring_entries; 164 __u32 flags; 165 __u32 dropped; 166 __u32 array; 167 __u32 resv1; 168 __u64 resv2; 169 }; 170 #define IORING_SQ_NEED_WAKEUP (1U << 0) 171 #define IORING_SQ_CQ_OVERFLOW (1U << 1) 172 struct io_cqring_offsets { 173 __u32 head; 174 __u32 tail; 175 __u32 ring_mask; 176 __u32 ring_entries; 177 __u32 overflow; 178 __u32 cqes; 179 __u32 flags; 180 __u32 resv1; 181 __u64 resv2; 182 }; 183 #define IORING_CQ_EVENTFD_DISABLED (1U << 0) 184 #define IORING_ENTER_GETEVENTS (1U << 0) 185 #define IORING_ENTER_SQ_WAKEUP (1U << 1) 186 #define IORING_ENTER_SQ_WAIT (1U << 2) 187 #define IORING_ENTER_EXT_ARG (1U << 3) 188 struct io_uring_params { 189 __u32 sq_entries; 190 __u32 cq_entries; 191 __u32 flags; 192 __u32 sq_thread_cpu; 193 __u32 sq_thread_idle; 194 __u32 features; 195 __u32 wq_fd; 196 __u32 resv[3]; 197 struct io_sqring_offsets sq_off; 198 struct io_cqring_offsets cq_off; 199 }; 200 #define IORING_FEAT_SINGLE_MMAP (1U << 0) 201 #define IORING_FEAT_NODROP (1U << 1) 202 #define IORING_FEAT_SUBMIT_STABLE (1U << 2) 203 #define IORING_FEAT_RW_CUR_POS (1U << 3) 204 #define IORING_FEAT_CUR_PERSONALITY (1U << 4) 205 #define IORING_FEAT_FAST_POLL (1U << 5) 206 #define IORING_FEAT_POLL_32BITS (1U << 6) 207 #define IORING_FEAT_SQPOLL_NONFIXED (1U << 7) 208 #define IORING_FEAT_EXT_ARG (1U << 8) 209 #define IORING_FEAT_NATIVE_WORKERS (1U << 9) 210 #define IORING_FEAT_RSRC_TAGS (1U << 10) 211 #define IORING_FEAT_CQE_SKIP (1U << 11) 212 enum { 213 IORING_REGISTER_BUFFERS = 0, 214 IORING_UNREGISTER_BUFFERS = 1, 215 IORING_REGISTER_FILES = 2, 216 IORING_UNREGISTER_FILES = 3, 217 IORING_REGISTER_EVENTFD = 4, 218 IORING_UNREGISTER_EVENTFD = 5, 219 IORING_REGISTER_FILES_UPDATE = 6, 220 IORING_REGISTER_EVENTFD_ASYNC = 7, 221 IORING_REGISTER_PROBE = 8, 222 IORING_REGISTER_PERSONALITY = 9, 223 IORING_UNREGISTER_PERSONALITY = 10, 224 IORING_REGISTER_RESTRICTIONS = 11, 225 IORING_REGISTER_ENABLE_RINGS = 12, 226 IORING_REGISTER_FILES2 = 13, 227 IORING_REGISTER_FILES_UPDATE2 = 14, 228 IORING_REGISTER_BUFFERS2 = 15, 229 IORING_REGISTER_BUFFERS_UPDATE = 16, 230 IORING_REGISTER_IOWQ_AFF = 17, 231 IORING_UNREGISTER_IOWQ_AFF = 18, 232 IORING_REGISTER_IOWQ_MAX_WORKERS = 19, 233 IORING_REGISTER_LAST 234 }; 235 enum { 236 IO_WQ_BOUND, 237 IO_WQ_UNBOUND, 238 }; 239 struct io_uring_files_update { 240 __u32 offset; 241 __u32 resv; 242 __aligned_u64 fds; 243 }; 244 struct io_uring_rsrc_register { 245 __u32 nr; 246 __u32 resv; 247 __u64 resv2; 248 __aligned_u64 data; 249 __aligned_u64 tags; 250 }; 251 struct io_uring_rsrc_update { 252 __u32 offset; 253 __u32 resv; 254 __aligned_u64 data; 255 }; 256 struct io_uring_rsrc_update2 { 257 __u32 offset; 258 __u32 resv; 259 __aligned_u64 data; 260 __aligned_u64 tags; 261 __u32 nr; 262 __u32 resv2; 263 }; 264 #define IORING_REGISTER_FILES_SKIP (- 2) 265 #define IO_URING_OP_SUPPORTED (1U << 0) 266 struct io_uring_probe_op { 267 __u8 op; 268 __u8 resv; 269 __u16 flags; 270 __u32 resv2; 271 }; 272 struct io_uring_probe { 273 __u8 last_op; 274 __u8 ops_len; 275 __u16 resv; 276 __u32 resv2[3]; 277 struct io_uring_probe_op ops[0]; 278 }; 279 struct io_uring_restriction { 280 __u16 opcode; 281 union { 282 __u8 register_op; 283 __u8 sqe_op; 284 __u8 sqe_flags; 285 }; 286 __u8 resv; 287 __u32 resv2[3]; 288 }; 289 enum { 290 IORING_RESTRICTION_REGISTER_OP = 0, 291 IORING_RESTRICTION_SQE_OP = 1, 292 IORING_RESTRICTION_SQE_FLAGS_ALLOWED = 2, 293 IORING_RESTRICTION_SQE_FLAGS_REQUIRED = 3, 294 IORING_RESTRICTION_LAST 295 }; 296 struct io_uring_getevents_arg { 297 __u64 sigmask; 298 __u32 sigmask_sz; 299 __u32 pad; 300 __u64 ts; 301 }; 302 #endif 303