rand: add 64-bit tausworthe variant with a 2^258 cycle

[fio.git] / verify.h

diff --git a/verify.h b/verify.h
index 6a81e9b012bc6fa0632a90ea0dc2e9acfe26755f..d4d6012b0ec35e6632e4e341881cbd3cd5f87d82 100644 (file)
--- a/verify.h
+++ b/verify.h
@@ -16,6 +16,7 @@ enum {
        VERIFY_CRC7,                    /* crc7 sum data blocks */
        VERIFY_SHA256,                  /* sha256 sum data blocks */
        VERIFY_SHA512,                  /* sha512 sum data blocks */
+       VERIFY_XXHASH,                  /* xxhash sum data blocks */
        VERIFY_META,                    /* block_num, timestamp etc. */
        VERIFY_SHA1,                    /* sha1 sum data blocks */
        VERIFY_PATTERN,                 /* verify specific patterns */
@@ -66,15 +67,19 @@ struct vhdr_meta {
        unsigned long time_sec;
        unsigned long time_usec;
 };
+struct vhdr_xxhash {
+       uint32_t hash;
+};
 
 /*
  * 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 *);
-extern void fill_pattern(struct thread_data *td, void *p, unsigned int len, struct io_u *io_u, unsigned long seed, int use_seed);
+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 **);
+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);
+extern void fill_buffer_pattern(struct thread_data *td, void *p, unsigned int len);
 extern void fio_verify_init(struct thread_data *td);
 
 /*
@@ -83,4 +88,91 @@ extern void fio_verify_init(struct thread_data *td);
 extern int verify_async_init(struct thread_data *);
 extern void verify_async_exit(struct thread_data *);
 
+struct thread_rand32_state {
+       uint32_t s[4];
+};
+
+struct thread_rand64_state {
+       uint64_t s[6];
+};
+
+struct thread_rand_state {
+       uint64_t use64;
+       union {
+               struct thread_rand32_state state32;
+               struct thread_rand64_state state64;
+       };
+};
+
+/*
+ * For dumping current write state
+ */
+struct thread_io_list {
+       uint64_t no_comps;
+       uint64_t depth;
+       uint64_t numberio;
+       uint64_t index;
+       struct thread_rand_state rand;
+       uint8_t name[64];
+       uint64_t offsets[0];
+};
+
+struct thread_io_list_v1 {
+       uint64_t no_comps;
+       uint64_t depth;
+       uint64_t numberio;
+       uint64_t index;
+       struct thread_rand32_state rand;
+       uint8_t name[64];
+       uint64_t offsets[0];
+};
+
+struct all_io_list {
+       uint64_t threads;
+       struct thread_io_list state[0];
+};
+
+#define VSTATE_HDR_VERSION_V1  0x01
+#define VSTATE_HDR_VERSION     0x02
+
+struct verify_state_hdr {
+       uint64_t version;
+       uint64_t size;
+       uint64_t crc;
+};
+
+#define IO_LIST_ALL            0xffffffff
+extern struct all_io_list *get_all_io_list(int, size_t *);
+extern void __verify_save_state(struct all_io_list *, const char *);
+extern void verify_save_state(void);
+extern int verify_load_state(struct thread_data *, const char *);
+extern void verify_free_state(struct thread_data *);
+extern int verify_state_should_stop(struct thread_data *, struct io_u *);
+extern void verify_convert_assign_state(struct thread_data *, void *, int);
+extern int verify_state_hdr(struct verify_state_hdr *, struct thread_io_list *,
+                               int *);
+
+static inline size_t __thread_io_list_sz(uint64_t depth)
+{
+       return sizeof(struct thread_io_list) + depth * sizeof(uint64_t);
+}
+
+static inline size_t thread_io_list_sz(struct thread_io_list *s)
+{
+       return __thread_io_list_sz(le64_to_cpu(s->depth));
+}
+
+static inline struct thread_io_list *io_list_next(struct thread_io_list *s)
+{
+       return (void *) s + thread_io_list_sz(s);
+}
+
+static inline void verify_state_gen_name(char *out, size_t size,
+                                        const char *name, const char *prefix,
+                                        int num)
+{
+       snprintf(out, size, "%s-%s-%d-verify.state", prefix, name, num);
+       out[size - 1] = '\0';
+}
+
 #endif