| 1 | #ifndef FIO_VERIFY_H |
| 2 | #define FIO_VERIFY_H |
| 3 | |
| 4 | #include <stdint.h> |
| 5 | |
| 6 | #define FIO_HDR_MAGIC 0xacca |
| 7 | |
| 8 | enum { |
| 9 | VERIFY_NONE = 0, /* no verification */ |
| 10 | VERIFY_HDR_ONLY, /* verify header only, kept for sake of |
| 11 | * compatibility with old configurations |
| 12 | * which use 'verify=meta' */ |
| 13 | VERIFY_MD5, /* md5 sum data blocks */ |
| 14 | VERIFY_CRC64, /* crc64 sum data blocks */ |
| 15 | VERIFY_CRC32, /* crc32 sum data blocks */ |
| 16 | VERIFY_CRC32C, /* crc32c sum data blocks */ |
| 17 | VERIFY_CRC32C_INTEL, /* crc32c sum data blocks with hw */ |
| 18 | VERIFY_CRC16, /* crc16 sum data blocks */ |
| 19 | VERIFY_CRC7, /* crc7 sum data blocks */ |
| 20 | VERIFY_SHA256, /* sha256 sum data blocks */ |
| 21 | VERIFY_SHA512, /* sha512 sum data blocks */ |
| 22 | VERIFY_XXHASH, /* xxhash sum data blocks */ |
| 23 | VERIFY_SHA1, /* sha1 sum data blocks */ |
| 24 | VERIFY_PATTERN, /* verify specific patterns */ |
| 25 | VERIFY_PATTERN_NO_HDR, /* verify specific patterns, no hdr */ |
| 26 | VERIFY_NULL, /* pretend to verify */ |
| 27 | }; |
| 28 | |
| 29 | /* |
| 30 | * A header structure associated with each checksummed data block. It is |
| 31 | * followed by a checksum specific header that contains the verification |
| 32 | * data. |
| 33 | */ |
| 34 | struct verify_header { |
| 35 | uint16_t magic; |
| 36 | uint16_t verify_type; |
| 37 | uint32_t len; |
| 38 | uint64_t rand_seed; |
| 39 | uint64_t offset; |
| 40 | uint32_t time_sec; |
| 41 | uint32_t time_usec; |
| 42 | uint16_t thread; |
| 43 | uint16_t numberio; |
| 44 | uint32_t crc32; |
| 45 | }; |
| 46 | |
| 47 | struct vhdr_md5 { |
| 48 | uint32_t md5_digest[4]; |
| 49 | }; |
| 50 | struct vhdr_sha512 { |
| 51 | uint8_t sha512[128]; |
| 52 | }; |
| 53 | struct vhdr_sha256 { |
| 54 | uint8_t sha256[64]; |
| 55 | }; |
| 56 | struct vhdr_sha1 { |
| 57 | uint32_t sha1[5]; |
| 58 | }; |
| 59 | struct vhdr_crc64 { |
| 60 | uint64_t crc64; |
| 61 | }; |
| 62 | struct vhdr_crc32 { |
| 63 | uint32_t crc32; |
| 64 | }; |
| 65 | struct vhdr_crc16 { |
| 66 | uint16_t crc16; |
| 67 | }; |
| 68 | struct vhdr_crc7 { |
| 69 | uint8_t crc7; |
| 70 | }; |
| 71 | struct vhdr_xxhash { |
| 72 | uint32_t hash; |
| 73 | }; |
| 74 | |
| 75 | /* |
| 76 | * Verify helpers |
| 77 | */ |
| 78 | extern void populate_verify_io_u(struct thread_data *, struct io_u *); |
| 79 | extern int __must_check get_next_verify(struct thread_data *td, struct io_u *); |
| 80 | extern int __must_check verify_io_u(struct thread_data *, struct io_u **); |
| 81 | extern int verify_io_u_async(struct thread_data *, struct io_u **); |
| 82 | extern void fill_verify_pattern(struct thread_data *td, void *p, unsigned int len, struct io_u *io_u, unsigned long seed, int use_seed); |
| 83 | extern void fill_buffer_pattern(struct thread_data *td, void *p, unsigned int len); |
| 84 | extern void fio_verify_init(struct thread_data *td); |
| 85 | |
| 86 | /* |
| 87 | * Async verify offload |
| 88 | */ |
| 89 | extern int verify_async_init(struct thread_data *); |
| 90 | extern void verify_async_exit(struct thread_data *); |
| 91 | |
| 92 | /* |
| 93 | * Callbacks for pasting formats in the pattern buffer |
| 94 | */ |
| 95 | extern int paste_blockoff(char *buf, unsigned int len, void *priv); |
| 96 | |
| 97 | struct thread_rand32_state { |
| 98 | uint32_t s[4]; |
| 99 | }; |
| 100 | |
| 101 | struct thread_rand64_state { |
| 102 | uint64_t s[6]; |
| 103 | }; |
| 104 | |
| 105 | struct thread_rand_state { |
| 106 | uint64_t use64; |
| 107 | union { |
| 108 | struct thread_rand32_state state32; |
| 109 | struct thread_rand64_state state64; |
| 110 | }; |
| 111 | }; |
| 112 | |
| 113 | /* |
| 114 | * For dumping current write state |
| 115 | */ |
| 116 | struct thread_io_list { |
| 117 | uint64_t no_comps; |
| 118 | uint64_t depth; |
| 119 | uint64_t numberio; |
| 120 | uint64_t index; |
| 121 | struct thread_rand_state rand; |
| 122 | uint8_t name[64]; |
| 123 | uint64_t offsets[0]; |
| 124 | }; |
| 125 | |
| 126 | struct thread_io_list_v1 { |
| 127 | uint64_t no_comps; |
| 128 | uint64_t depth; |
| 129 | uint64_t numberio; |
| 130 | uint64_t index; |
| 131 | struct thread_rand32_state rand; |
| 132 | uint8_t name[64]; |
| 133 | uint64_t offsets[0]; |
| 134 | }; |
| 135 | |
| 136 | struct all_io_list { |
| 137 | uint64_t threads; |
| 138 | struct thread_io_list state[0]; |
| 139 | }; |
| 140 | |
| 141 | #define VSTATE_HDR_VERSION_V1 0x01 |
| 142 | #define VSTATE_HDR_VERSION 0x02 |
| 143 | |
| 144 | struct verify_state_hdr { |
| 145 | uint64_t version; |
| 146 | uint64_t size; |
| 147 | uint64_t crc; |
| 148 | }; |
| 149 | |
| 150 | #define IO_LIST_ALL 0xffffffff |
| 151 | extern struct all_io_list *get_all_io_list(int, size_t *); |
| 152 | extern void __verify_save_state(struct all_io_list *, const char *); |
| 153 | extern void verify_save_state(int mask); |
| 154 | extern int verify_load_state(struct thread_data *, const char *); |
| 155 | extern void verify_free_state(struct thread_data *); |
| 156 | extern int verify_state_should_stop(struct thread_data *, struct io_u *); |
| 157 | extern void verify_convert_assign_state(struct thread_data *, void *, int); |
| 158 | extern int verify_state_hdr(struct verify_state_hdr *, struct thread_io_list *, |
| 159 | int *); |
| 160 | |
| 161 | static inline size_t __thread_io_list_sz(uint64_t depth) |
| 162 | { |
| 163 | return sizeof(struct thread_io_list) + depth * sizeof(uint64_t); |
| 164 | } |
| 165 | |
| 166 | static inline size_t thread_io_list_sz(struct thread_io_list *s) |
| 167 | { |
| 168 | return __thread_io_list_sz(le64_to_cpu(s->depth)); |
| 169 | } |
| 170 | |
| 171 | static inline struct thread_io_list *io_list_next(struct thread_io_list *s) |
| 172 | { |
| 173 | return (void *) s + thread_io_list_sz(s); |
| 174 | } |
| 175 | |
| 176 | static inline void verify_state_gen_name(char *out, size_t size, |
| 177 | const char *name, const char *prefix, |
| 178 | int num) |
| 179 | { |
| 180 | snprintf(out, size, "%s-%s-%d-verify.state", prefix, name, num); |
| 181 | out[size - 1] = '\0'; |
| 182 | } |
| 183 | |
| 184 | #endif |