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verify.h

#ifndef FIO_VERIFY_H
#define FIO_VERIFY_H

#define FIO_HDR_MAGIC   0xf00baaef

enum {
      VERIFY_NONE = 0,        /* no verification */
      VERIFY_MD5,             /* md5 sum data blocks */
      VERIFY_CRC64,                 /* crc64 sum data blocks */
      VERIFY_CRC32,                 /* crc32 sum data blocks */
      VERIFY_CRC32C,                /* crc32c sum data blocks */
      VERIFY_CRC32C_INTEL,          /* crc32c sum data blocks with hw */
      VERIFY_CRC16,                 /* crc16 sum data blocks */
      VERIFY_CRC7,                  /* crc7 sum data blocks */
      VERIFY_SHA256,                /* sha256 sum data blocks */
      VERIFY_SHA512,                /* sha512 sum data blocks */
      VERIFY_META,                  /* block_num, timestamp etc. */
      VERIFY_NULL,                  /* pretend to verify */
};

/*
 * A header structure associated with each checksummed data block. It is
 * followed by a checksum specific header that contains the verification
 * data.
 */
struct verify_header {
      unsigned int fio_magic;
      unsigned int len;
      unsigned int verify_type;
};

struct vhdr_md5 {
      uint32_t md5_digest[16];
};
struct vhdr_sha512 {
      uint8_t sha512[128];
};
struct vhdr_sha256 {
      uint8_t sha256[128];
};
struct vhdr_crc64 {
      uint64_t crc64;
};
struct vhdr_crc32 {
      uint32_t crc32;
};
struct vhdr_crc16 {
      uint16_t crc16;
};
struct vhdr_crc7 {
      uint8_t crc7;
};
struct vhdr_meta {
      uint64_t offset;
      unsigned char thread;
      unsigned short numberio;
      unsigned long time_sec;
      unsigned long time_usec;
};

/*
 * Verify helpers
 */
extern void populate_verify_io_u(struct thread_data *, struct io_u *);
extern int __must_check get_next_verify(struct thread_data *td, struct io_u *);
extern int __must_check verify_io_u(struct thread_data *, struct io_u *);
extern int verify_io_u_async(struct thread_data *, struct io_u *);

/*
 * Async verify offload
 */
extern int verify_async_init(struct thread_data *);
extern void verify_async_exit(struct thread_data *);

#endif

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