fio: factor out fio initialization code

[fio.git] / ioengine.h

diff --git a/ioengine.h b/ioengine.h
index eb6655d165cad381e747a332cfee5b93736e7fd8..51e559440e6903a33546ee163c83ca7ce0d14480 100644 (file)
--- a/ioengine.h
+++ b/ioengine.h
@@ -1,13 +1,16 @@
 #ifndef FIO_IOENGINE_H
 #define FIO_IOENGINE_H
 
-#define FIO_IOOPS_VERSION      10
+#define FIO_IOOPS_VERSION      13
 
 enum {
        IO_U_F_FREE             = 1 << 0,
        IO_U_F_FLIGHT           = 1 << 1,
        IO_U_F_FREE_DEF         = 1 << 2,
        IO_U_F_IN_CUR_DEPTH     = 1 << 3,
+       IO_U_F_BUSY_OK          = 1 << 4,
+       IO_U_F_TRIMMED          = 1 << 5,
+       IO_U_F_BARRIER          = 1 << 6,
 };
 
 /*
@@ -19,7 +22,7 @@ struct io_u {
                struct iocb iocb;
 #endif
 #ifdef FIO_HAVE_POSIXAIO
-               struct aiocb aiocb;
+               os_aiocb_t aiocb;
 #endif
 #ifdef FIO_HAVE_SGIO
                struct sg_io_hdr hdr;
@@ -29,6 +32,12 @@ struct io_u {
 #endif
 #ifdef FIO_HAVE_SOLARISAIO
                aio_result_t resultp;
+#endif
+#ifdef FIO_HAVE_BINJECT
+               struct b_user_cmd buc;
+#endif
+#ifdef FIO_HAVE_RDMA
+               struct ibv_mr *mr;
 #endif
                void *mmap_data;
        };
@@ -42,6 +51,11 @@ struct io_u {
        unsigned long buflen;
        unsigned long long offset;
 
+       /*
+        * Initial seed for generating the buffer contents
+        */
+       unsigned long rand_seed;
+
        /*
         * IO engine state, may be different from above when we get
         * partial transfers / residual data counts
@@ -49,6 +63,12 @@ struct io_u {
        void *xfer_buf;
        unsigned long xfer_buflen;
 
+       /*
+        * Parameter related to pre-filled buffers and
+        * their size to handle variable block sizes.
+        */
+       unsigned long buf_filled_len;
+
        unsigned int resid;
        unsigned int error;
 
@@ -101,6 +121,8 @@ struct ioengine_ops {
        int (*open_file)(struct thread_data *, struct fio_file *);
        int (*close_file)(struct thread_data *, struct fio_file *);
        int (*get_file_size)(struct thread_data *, struct fio_file *);
+       int option_struct_size;
+       struct fio_option *options;
        void *data;
        void *dlhandle;
 };
@@ -110,11 +132,13 @@ enum fio_ioengine_flags {
        FIO_RAWIO       = 1 << 1,       /* some sort of direct/raw io */
        FIO_DISKLESSIO  = 1 << 2,       /* no disk involved */
        FIO_NOEXTEND    = 1 << 3,       /* engine can't extend file */
-       FIO_NODISKUTIL  = 1 << 4,       /* diskutil can't handle filename */
+       FIO_NODISKUTIL  = 1 << 4,       /* diskutil can't handle filename */
        FIO_UNIDIR      = 1 << 5,       /* engine is uni-directional */
        FIO_NOIO        = 1 << 6,       /* thread does only pseudo IO */
-       FIO_SIGQUIT     = 1 << 7,       /* needs SIGQUIT to exit */
+       FIO_SIGTERM     = 1 << 7,       /* needs SIGTERM to exit */
        FIO_PIPEIO      = 1 << 8,       /* input/output no seekable */
+       FIO_BARRIER     = 1 << 9,       /* engine supports barriers */
+       FIO_MEMALIGN    = 1 << 10,      /* engine wants aligned memory */
 };
 
 /*
@@ -133,8 +157,11 @@ extern int __must_check td_io_get_file_size(struct thread_data *, struct fio_fil
 extern struct ioengine_ops *load_ioengine(struct thread_data *, const char *);
 extern void register_ioengine(struct ioengine_ops *);
 extern void unregister_ioengine(struct ioengine_ops *);
+extern void free_ioengine(struct thread_data *);
 extern void close_ioengine(struct thread_data *);
 
+extern int fio_show_ioengine_help(const char *engine);
+
 /*
  * io unit handling
  */
@@ -153,6 +180,9 @@ extern void io_u_fill_buffer(struct thread_data *td, struct io_u *, unsigned int
 void io_u_mark_complete(struct thread_data *, unsigned int);
 void io_u_mark_submit(struct thread_data *, unsigned int);
 
+int do_io_u_sync(struct thread_data *, struct io_u *);
+int do_io_u_trim(struct thread_data *, struct io_u *);
+
 #ifdef FIO_INC_DEBUG
 static inline void dprint_io_u(struct io_u *io_u, const char *p)
 {