| /**************************************************************************** |
| **************************************************************************** |
| *** |
| *** This header was automatically generated from a Linux kernel header |
| *** of the same name, to make information necessary for userspace to |
| *** call into the kernel available to libc. It contains only constants, |
| *** structures, and macros generated from the original header, and thus, |
| *** contains no copyrightable information. |
| *** |
| *** To edit the content of this header, modify the corresponding |
| *** source file (e.g. under external/kernel-headers/original/) then |
| *** run bionic/libc/kernel/tools/update_all.py |
| *** |
| *** Any manual change here will be lost the next time this script will |
| *** be run. You've been warned! |
| *** |
| **************************************************************************** |
| ****************************************************************************/ |
| #ifndef USER_BLK_DRV_CMD_INC_H |
| #define USER_BLK_DRV_CMD_INC_H |
| #include <linux/types.h> |
| #define UBLK_CMD_GET_QUEUE_AFFINITY 0x01 |
| #define UBLK_CMD_GET_DEV_INFO 0x02 |
| #define UBLK_CMD_ADD_DEV 0x04 |
| #define UBLK_CMD_DEL_DEV 0x05 |
| #define UBLK_CMD_START_DEV 0x06 |
| #define UBLK_CMD_STOP_DEV 0x07 |
| #define UBLK_CMD_SET_PARAMS 0x08 |
| #define UBLK_CMD_GET_PARAMS 0x09 |
| #define UBLK_CMD_START_USER_RECOVERY 0x10 |
| #define UBLK_CMD_END_USER_RECOVERY 0x11 |
| #define UBLK_IO_FETCH_REQ 0x20 |
| #define UBLK_IO_COMMIT_AND_FETCH_REQ 0x21 |
| #define UBLK_IO_NEED_GET_DATA 0x22 |
| #define UBLK_IO_RES_OK 0 |
| #define UBLK_IO_RES_NEED_GET_DATA 1 |
| #define UBLK_IO_RES_ABORT (- ENODEV) |
| #define UBLKSRV_CMD_BUF_OFFSET 0 |
| #define UBLKSRV_IO_BUF_OFFSET 0x80000000 |
| #define UBLK_MAX_QUEUE_DEPTH 4096 |
| #define UBLK_F_SUPPORT_ZERO_COPY (1ULL << 0) |
| #define UBLK_F_URING_CMD_COMP_IN_TASK (1ULL << 1) |
| #define UBLK_F_NEED_GET_DATA (1UL << 2) |
| #define UBLK_F_USER_RECOVERY (1UL << 3) |
| #define UBLK_F_USER_RECOVERY_REISSUE (1UL << 4) |
| #define UBLK_S_DEV_DEAD 0 |
| #define UBLK_S_DEV_LIVE 1 |
| #define UBLK_S_DEV_QUIESCED 2 |
| struct ublksrv_ctrl_cmd { |
| __u32 dev_id; |
| __u16 queue_id; |
| __u16 len; |
| __u64 addr; |
| __u64 data[2]; |
| }; |
| struct ublksrv_ctrl_dev_info { |
| __u16 nr_hw_queues; |
| __u16 queue_depth; |
| __u16 state; |
| __u16 pad0; |
| __u32 max_io_buf_bytes; |
| __u32 dev_id; |
| __s32 ublksrv_pid; |
| __u32 pad1; |
| __u64 flags; |
| __u64 ublksrv_flags; |
| __u64 reserved0; |
| __u64 reserved1; |
| __u64 reserved2; |
| }; |
| #define UBLK_IO_OP_READ 0 |
| #define UBLK_IO_OP_WRITE 1 |
| #define UBLK_IO_OP_FLUSH 2 |
| #define UBLK_IO_OP_DISCARD 3 |
| #define UBLK_IO_OP_WRITE_SAME 4 |
| #define UBLK_IO_OP_WRITE_ZEROES 5 |
| #define UBLK_IO_F_FAILFAST_DEV (1U << 8) |
| #define UBLK_IO_F_FAILFAST_TRANSPORT (1U << 9) |
| #define UBLK_IO_F_FAILFAST_DRIVER (1U << 10) |
| #define UBLK_IO_F_META (1U << 11) |
| #define UBLK_IO_F_FUA (1U << 13) |
| #define UBLK_IO_F_NOUNMAP (1U << 15) |
| #define UBLK_IO_F_SWAP (1U << 16) |
| struct ublksrv_io_desc { |
| __u32 op_flags; |
| __u32 nr_sectors; |
| __u64 start_sector; |
| __u64 addr; |
| }; |
| struct ublksrv_io_cmd { |
| __u16 q_id; |
| __u16 tag; |
| __s32 result; |
| __u64 addr; |
| }; |
| struct ublk_param_basic { |
| #define UBLK_ATTR_READ_ONLY (1 << 0) |
| #define UBLK_ATTR_ROTATIONAL (1 << 1) |
| #define UBLK_ATTR_VOLATILE_CACHE (1 << 2) |
| #define UBLK_ATTR_FUA (1 << 3) |
| __u32 attrs; |
| __u8 logical_bs_shift; |
| __u8 physical_bs_shift; |
| __u8 io_opt_shift; |
| __u8 io_min_shift; |
| __u32 max_sectors; |
| __u32 chunk_sectors; |
| __u64 dev_sectors; |
| __u64 virt_boundary_mask; |
| }; |
| struct ublk_param_discard { |
| __u32 discard_alignment; |
| __u32 discard_granularity; |
| __u32 max_discard_sectors; |
| __u32 max_write_zeroes_sectors; |
| __u16 max_discard_segments; |
| __u16 reserved0; |
| }; |
| struct ublk_params { |
| __u32 len; |
| #define UBLK_PARAM_TYPE_BASIC (1 << 0) |
| #define UBLK_PARAM_TYPE_DISCARD (1 << 1) |
| __u32 types; |
| struct ublk_param_basic basic; |
| struct ublk_param_discard discard; |
| }; |
| #endif |