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

[fio.git] / verify.h

diff --git a/verify.h b/verify.h
index 76d256d1d2b4d8fd7e42e445704ba746e0de538c..d4d6012b0ec35e6632e4e341881cbd3cd5f87d82 100644 (file)
--- a/verify.h
+++ b/verify.h
@@ -1,7 +1,9 @@
 #ifndef FIO_VERIFY_H
 #define FIO_VERIFY_H
 
-#define FIO_HDR_MAGIC  0xf00baaef
+#include <stdint.h>
+
+#define FIO_HDR_MAGIC  0xacca
 
 enum {
        VERIFY_NONE = 0,                /* no verification */
@@ -14,7 +16,10 @@ 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 */
        VERIFY_NULL,                    /* pretend to verify */
 };
 
@@ -24,19 +29,24 @@ enum {
  * data.
  */
 struct verify_header {
-       unsigned int fio_magic;
-       unsigned int len;
-       unsigned int verify_type;
+       uint16_t magic;
+       uint16_t verify_type;
+       uint32_t len;
+       uint64_t rand_seed;
+       uint32_t crc32;
 };
 
 struct vhdr_md5 {
-       uint32_t md5_digest[16];
+       uint32_t md5_digest[4];
 };
 struct vhdr_sha512 {
        uint8_t sha512[128];
 };
 struct vhdr_sha256 {
-       uint8_t sha256[128];
+       uint8_t sha256[64];
+};
+struct vhdr_sha1 {
+       uint32_t sha1[5];
 };
 struct vhdr_crc64 {
        uint64_t crc64;
@@ -57,12 +67,112 @@ 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 __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);
+
+/*
+ * Async verify offload
+ */
+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