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