website-struct

Struct: io_uring_sqe

Status

Regular

• In 4.4: Absent ⚠️
• In 4.8: Absent ⚠️
• In 4.10: Absent ⚠️
• In 4.13: Absent ⚠️
• In 4.15: Absent ⚠️
• In 4.18: Absent ⚠️
• In 5.0: Absent ⚠️
• In 5.3: ✅

  struct io_uring_sqe {
      __u8 opcode;
      __u8 flags;
      __u16 ioprio;
      __s32 fd;
      __u64 off;
      __u64 addr;
      __u32 len;
      __kernel_rwf_t rw_flags;
      __u32 fsync_flags;
      __u16 poll_events;
      __u32 sync_range_flags;
      __u32 msg_flags;
      __u64 user_data;
      __u16 buf_index;
      __u64 __pad2[3];
  };
  

• In 5.4: ✅

  struct io_uring_sqe {
      __u8 opcode;
      __u8 flags;
      __u16 ioprio;
      __s32 fd;
      __u64 off;
      __u64 addr;
      __u32 len;
      __kernel_rwf_t rw_flags;
      __u32 fsync_flags;
      __u16 poll_events;
      __u32 sync_range_flags;
      __u32 msg_flags;
      __u32 timeout_flags;
      __u64 user_data;
      __u16 buf_index;
      __u64 __pad2[3];
  };
  

• In 5.8: ✅

  struct io_uring_sqe {
      __u8 opcode;
      __u8 flags;
      __u16 ioprio;
      __s32 fd;
      __u64 off;
      __u64 addr2;
      __u64 addr;
      __u64 splice_off_in;
      __u32 len;
      __kernel_rwf_t rw_flags;
      __u32 fsync_flags;
      __u16 poll_events;
      __u32 sync_range_flags;
      __u32 msg_flags;
      __u32 timeout_flags;
      __u32 accept_flags;
      __u32 cancel_flags;
      __u32 open_flags;
      __u32 statx_flags;
      __u32 fadvise_advice;
      __u32 splice_flags;
      __u64 user_data;
      __u16 buf_index;
      __u16 buf_group;
      __u16 personality;
      __s32 splice_fd_in;
      __u64 __pad2[3];
  };
  

• In 5.11: ✅

  struct io_uring_sqe {
      __u8 opcode;
      __u8 flags;
      __u16 ioprio;
      __s32 fd;
      __u64 off;
      __u64 addr2;
      __u64 addr;
      __u64 splice_off_in;
      __u32 len;
      __kernel_rwf_t rw_flags;
      __u32 fsync_flags;
      __u16 poll_events;
      __u32 poll32_events;
      __u32 sync_range_flags;
      __u32 msg_flags;
      __u32 timeout_flags;
      __u32 accept_flags;
      __u32 cancel_flags;
      __u32 open_flags;
      __u32 statx_flags;
      __u32 fadvise_advice;
      __u32 splice_flags;
      __u32 rename_flags;
      __u32 unlink_flags;
      __u64 user_data;
      __u16 buf_index;
      __u16 buf_group;
      __u16 personality;
      __s32 splice_fd_in;
      __u64 __pad2[3];
  };
  

• In 5.13: ✅

  struct io_uring_sqe {
      __u8 opcode;
      __u8 flags;
      __u16 ioprio;
      __s32 fd;
      __u64 off;
      __u64 addr2;
      __u64 addr;
      __u64 splice_off_in;
      __u32 len;
      __kernel_rwf_t rw_flags;
      __u32 fsync_flags;
      __u16 poll_events;
      __u32 poll32_events;
      __u32 sync_range_flags;
      __u32 msg_flags;
      __u32 timeout_flags;
      __u32 accept_flags;
      __u32 cancel_flags;
      __u32 open_flags;
      __u32 statx_flags;
      __u32 fadvise_advice;
      __u32 splice_flags;
      __u32 rename_flags;
      __u32 unlink_flags;
      __u64 user_data;
      __u16 buf_index;
      __u16 buf_group;
      __u16 personality;
      __s32 splice_fd_in;
      __u64 __pad2[3];
  };
  

• In 5.15: ✅

  struct io_uring_sqe {
      __u8 opcode;
      __u8 flags;
      __u16 ioprio;
      __s32 fd;
      __u64 off;
      __u64 addr2;
      __u64 addr;
      __u64 splice_off_in;
      __u32 len;
      __kernel_rwf_t rw_flags;
      __u32 fsync_flags;
      __u16 poll_events;
      __u32 poll32_events;
      __u32 sync_range_flags;
      __u32 msg_flags;
      __u32 timeout_flags;
      __u32 accept_flags;
      __u32 cancel_flags;
      __u32 open_flags;
      __u32 statx_flags;
      __u32 fadvise_advice;
      __u32 splice_flags;
      __u32 rename_flags;
      __u32 unlink_flags;
      __u32 hardlink_flags;
      __u64 user_data;
      __u16 buf_index;
      __u16 buf_group;
      __u16 personality;
      __s32 splice_fd_in;
      __u32 file_index;
      __u64 __pad2[2];
  };
  

• In 5.19: ✅

  struct io_uring_sqe {
      __u8 opcode;
      __u8 flags;
      __u16 ioprio;
      __s32 fd;
      __u64 off;
      __u64 addr2;
      __u32 cmd_op;
      __u32 __pad1;
      __u64 addr;
      __u64 splice_off_in;
      __u32 len;
      __kernel_rwf_t rw_flags;
      __u32 fsync_flags;
      __u16 poll_events;
      __u32 poll32_events;
      __u32 sync_range_flags;
      __u32 msg_flags;
      __u32 timeout_flags;
      __u32 accept_flags;
      __u32 cancel_flags;
      __u32 open_flags;
      __u32 statx_flags;
      __u32 fadvise_advice;
      __u32 splice_flags;
      __u32 rename_flags;
      __u32 unlink_flags;
      __u32 hardlink_flags;
      __u32 xattr_flags;
      __u64 user_data;
      __u16 buf_index;
      __u16 buf_group;
      __u16 personality;
      __s32 splice_fd_in;
      __u32 file_index;
      __u64 addr3;
      __u64 __pad2[1];
      __u8 cmd[0];
  };
  

• In 6.2: ✅

  struct io_uring_sqe {
      __u8 opcode;
      __u8 flags;
      __u16 ioprio;
      __s32 fd;
      __u64 off;
      __u64 addr2;
      __u32 cmd_op;
      __u32 __pad1;
      __u64 addr;
      __u64 splice_off_in;
      __u32 len;
      __kernel_rwf_t rw_flags;
      __u32 fsync_flags;
      __u16 poll_events;
      __u32 poll32_events;
      __u32 sync_range_flags;
      __u32 msg_flags;
      __u32 timeout_flags;
      __u32 accept_flags;
      __u32 cancel_flags;
      __u32 open_flags;
      __u32 statx_flags;
      __u32 fadvise_advice;
      __u32 splice_flags;
      __u32 rename_flags;
      __u32 unlink_flags;
      __u32 hardlink_flags;
      __u32 xattr_flags;
      __u32 msg_ring_flags;
      __u32 uring_cmd_flags;
      __u64 user_data;
      __u16 buf_index;
      __u16 buf_group;
      __u16 personality;
      __s32 splice_fd_in;
      __u32 file_index;
      __u16 addr_len;
      __u16 __pad3[1];
      __u64 addr3;
      __u64 __pad2[1];
      __u8 cmd[0];
  };
  

• In 6.5: ✅

  struct io_uring_sqe {
      __u8 opcode;
      __u8 flags;
      __u16 ioprio;
      __s32 fd;
      __u64 off;
      __u64 addr2;
      __u32 cmd_op;
      __u32 __pad1;
      __u64 addr;
      __u64 splice_off_in;
      __u32 len;
      __kernel_rwf_t rw_flags;
      __u32 fsync_flags;
      __u16 poll_events;
      __u32 poll32_events;
      __u32 sync_range_flags;
      __u32 msg_flags;
      __u32 timeout_flags;
      __u32 accept_flags;
      __u32 cancel_flags;
      __u32 open_flags;
      __u32 statx_flags;
      __u32 fadvise_advice;
      __u32 splice_flags;
      __u32 rename_flags;
      __u32 unlink_flags;
      __u32 hardlink_flags;
      __u32 xattr_flags;
      __u32 msg_ring_flags;
      __u32 uring_cmd_flags;
      __u64 user_data;
      __u16 buf_index;
      __u16 buf_group;
      __u16 personality;
      __s32 splice_fd_in;
      __u32 file_index;
      __u16 addr_len;
      __u16 __pad3[1];
      __u64 addr3;
      __u64 __pad2[1];
      __u8 cmd[0];
  };
  

• In 6.8: ✅

  struct io_uring_sqe {
      __u8 opcode;
      __u8 flags;
      __u16 ioprio;
      __s32 fd;
      __u64 off;
      __u64 addr2;
      __u32 cmd_op;
      __u32 __pad1;
      __u64 addr;
      __u64 splice_off_in;
      __u32 level;
      __u32 optname;
      __u32 len;
      __kernel_rwf_t rw_flags;
      __u32 fsync_flags;
      __u16 poll_events;
      __u32 poll32_events;
      __u32 sync_range_flags;
      __u32 msg_flags;
      __u32 timeout_flags;
      __u32 accept_flags;
      __u32 cancel_flags;
      __u32 open_flags;
      __u32 statx_flags;
      __u32 fadvise_advice;
      __u32 splice_flags;
      __u32 rename_flags;
      __u32 unlink_flags;
      __u32 hardlink_flags;
      __u32 xattr_flags;
      __u32 msg_ring_flags;
      __u32 uring_cmd_flags;
      __u32 waitid_flags;
      __u32 futex_flags;
      __u32 install_fd_flags;
      __u64 user_data;
      __u16 buf_index;
      __u16 buf_group;
      __u16 personality;
      __s32 splice_fd_in;
      __u32 file_index;
      __u32 optlen;
      __u16 addr_len;
      __u16 __pad3[1];
      __u64 addr3;
      __u64 __pad2[1];
      __u64 optval;
      __u8 cmd[0];
  };
  

Arch

• In arm64: ✅

  struct io_uring_sqe {
      __u8 opcode;
      __u8 flags;
      __u16 ioprio;
      __s32 fd;
      __u64 off;
      __u64 addr;
      __u32 len;
      __kernel_rwf_t rw_flags;
      __u32 fsync_flags;
      __u16 poll_events;
      __u32 sync_range_flags;
      __u32 msg_flags;
      __u32 timeout_flags;
      __u64 user_data;
      __u16 buf_index;
      __u64 __pad2[3];
  };
  

• In armhf: ✅

  struct io_uring_sqe {
      __u8 opcode;
      __u8 flags;
      __u16 ioprio;
      __s32 fd;
      __u64 off;
      __u64 addr;
      __u32 len;
      __kernel_rwf_t rw_flags;
      __u32 fsync_flags;
      __u16 poll_events;
      __u32 sync_range_flags;
      __u32 msg_flags;
      __u32 timeout_flags;
      __u64 user_data;
      __u16 buf_index;
      __u64 __pad2[3];
  };
  

• In ppc64el: ✅

  struct io_uring_sqe {
      __u8 opcode;
      __u8 flags;
      __u16 ioprio;
      __s32 fd;
      __u64 off;
      __u64 addr;
      __u32 len;
      __kernel_rwf_t rw_flags;
      __u32 fsync_flags;
      __u16 poll_events;
      __u32 sync_range_flags;
      __u32 msg_flags;
      __u32 timeout_flags;
      __u64 user_data;
      __u16 buf_index;
      __u64 __pad2[3];
  };
  

• In riscv64: ✅

  struct io_uring_sqe {
      __u8 opcode;
      __u8 flags;
      __u16 ioprio;
      __s32 fd;
      __u64 off;
      __u64 addr;
      __u32 len;
      __kernel_rwf_t rw_flags;
      __u32 fsync_flags;
      __u16 poll_events;
      __u32 sync_range_flags;
      __u32 msg_flags;
      __u32 timeout_flags;
      __u64 user_data;
      __u16 buf_index;
      __u64 __pad2[3];
  };
  

Flavor

• In aws: ✅

  struct io_uring_sqe {
      __u8 opcode;
      __u8 flags;
      __u16 ioprio;
      __s32 fd;
      __u64 off;
      __u64 addr;
      __u32 len;
      __kernel_rwf_t rw_flags;
      __u32 fsync_flags;
      __u16 poll_events;
      __u32 sync_range_flags;
      __u32 msg_flags;
      __u32 timeout_flags;
      __u64 user_data;
      __u16 buf_index;
      __u64 __pad2[3];
  };
  

• In azure: ✅

  struct io_uring_sqe {
      __u8 opcode;
      __u8 flags;
      __u16 ioprio;
      __s32 fd;
      __u64 off;
      __u64 addr;
      __u32 len;
      __kernel_rwf_t rw_flags;
      __u32 fsync_flags;
      __u16 poll_events;
      __u32 sync_range_flags;
      __u32 msg_flags;
      __u32 timeout_flags;
      __u64 user_data;
      __u16 buf_index;
      __u64 __pad2[3];
  };
  

• In gcp: ✅

  struct io_uring_sqe {
      __u8 opcode;
      __u8 flags;
      __u16 ioprio;
      __s32 fd;
      __u64 off;
      __u64 addr;
      __u32 len;
      __kernel_rwf_t rw_flags;
      __u32 fsync_flags;
      __u16 poll_events;
      __u32 sync_range_flags;
      __u32 msg_flags;
      __u32 timeout_flags;
      __u64 user_data;
      __u16 buf_index;
      __u64 __pad2[3];
  };
  

• In lowlatency: ✅

  struct io_uring_sqe {
      __u8 opcode;
      __u8 flags;
      __u16 ioprio;
      __s32 fd;
      __u64 off;
      __u64 addr;
      __u32 len;
      __kernel_rwf_t rw_flags;
      __u32 fsync_flags;
      __u16 poll_events;
      __u32 sync_range_flags;
      __u32 msg_flags;
      __u32 timeout_flags;
      __u64 user_data;
      __u16 buf_index;
      __u64 __pad2[3];
  };
  

Differences

Regular

• Changed between 5.3 and 5.4 ⚠️

  • Field added. __u32 timeout_flags
• Changed between 5.4 and 5.8 ⚠️

  • Field added. __u64 addr2
  • Field added. __u64 splice_off_in
  • Field added. __u32 accept_flags
  • Field added. __u32 cancel_flags
  • Field added. __u32 open_flags
  • Field added. __u32 statx_flags
  • Field added. __u32 fadvise_advice
  • Field added. __u32 splice_flags
  • Field added. __u16 buf_group
  • Field added. __u16 personality
  • Field added. __s32 splice_fd_in
• Changed between 5.8 and 5.11 ⚠️

  • Field added. __u32 poll32_events
  • Field added. __u32 rename_flags
  • Field added. __u32 unlink_flags
• No changes between 5.11 and 5.13 ✅
• Changed between 5.13 and 5.15 ⚠️

  • Field added. __u32 hardlink_flags
  • Field added. __u32 file_index
  • Field type changed. __u64 __pad2[3] ➡️ __u64 __pad2[2]
• Changed between 5.15 and 5.19 ⚠️

  • Field added. __u32 cmd_op
  • Field added. __u32 __pad1
  • Field added. __u32 xattr_flags
  • Field added. __u64 addr3
  • Field added. __u8 cmd[0]
  • Field type changed. __u64 __pad2[2] ➡️ __u64 __pad2[1]
• Changed between 5.19 and 6.2 ⚠️

  • Field added. __u32 msg_ring_flags
  • Field added. __u32 uring_cmd_flags
  • Field added. __u16 addr_len
  • Field added. __u16 __pad3[1]
• No changes between 6.2 and 6.5 ✅
• Changed between 6.5 and 6.8 ⚠️

  • Field added. __u32 level
  • Field added. __u32 optname
  • Field added. __u32 waitid_flags
  • Field added. __u32 futex_flags
  • Field added. __u32 install_fd_flags
  • Field added. __u32 optlen
  • Field added. __u64 optval

Arch

• No changes between amd64 and arm64 ✅
• No changes between amd64 and armhf ✅
• No changes between amd64 and ppc64el ✅
• No changes between amd64 and riscv64 ✅

Flavor

• No changes between generic and aws ✅
• No changes between generic and azure ✅
• No changes between generic and gcp ✅
• No changes between generic and lowlatency ✅