250 lines
6.9 KiB
C
250 lines
6.9 KiB
C
#ifndef FIO_IOENGINE_H
|
|
#define FIO_IOENGINE_H
|
|
|
|
#include "compiler/compiler.h"
|
|
#include "os/os.h"
|
|
#include "log.h"
|
|
#include "io_ddir.h"
|
|
#include "debug.h"
|
|
#include "file.h"
|
|
|
|
#ifdef CONFIG_LIBAIO
|
|
#include <libaio.h>
|
|
#endif
|
|
#ifdef CONFIG_GUASI
|
|
#include <guasi.h>
|
|
#endif
|
|
|
|
#define FIO_IOOPS_VERSION 21
|
|
|
|
enum {
|
|
IO_U_F_FREE = 1 << 0,
|
|
IO_U_F_FLIGHT = 1 << 1,
|
|
IO_U_F_NO_FILE_PUT = 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,
|
|
IO_U_F_VER_LIST = 1 << 7,
|
|
};
|
|
|
|
/*
|
|
* The io unit
|
|
*/
|
|
struct io_u {
|
|
struct timeval start_time;
|
|
struct timeval issue_time;
|
|
|
|
struct fio_file *file;
|
|
unsigned int flags;
|
|
enum fio_ddir ddir;
|
|
|
|
/*
|
|
* For replay workloads, we may want to account as a different
|
|
* IO type than what is being submitted.
|
|
*/
|
|
enum fio_ddir acct_ddir;
|
|
|
|
/*
|
|
* Allocated/set buffer and length
|
|
*/
|
|
unsigned long buflen;
|
|
unsigned long long offset;
|
|
unsigned short numberio;
|
|
void *buf;
|
|
|
|
/*
|
|
* Initial seed for generating the buffer contents
|
|
*/
|
|
uint64_t rand_seed;
|
|
|
|
/*
|
|
* IO engine state, may be different from above when we get
|
|
* partial transfers / residual data counts
|
|
*/
|
|
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;
|
|
|
|
struct io_piece *ipo;
|
|
|
|
unsigned int resid;
|
|
unsigned int error;
|
|
|
|
/*
|
|
* io engine private data
|
|
*/
|
|
union {
|
|
unsigned int index;
|
|
unsigned int seen;
|
|
void *engine_data;
|
|
};
|
|
|
|
struct flist_head verify_list;
|
|
|
|
/*
|
|
* Callback for io completion
|
|
*/
|
|
int (*end_io)(struct thread_data *, struct io_u **);
|
|
|
|
union {
|
|
#ifdef CONFIG_LIBAIO
|
|
struct iocb iocb;
|
|
#endif
|
|
#ifdef CONFIG_POSIXAIO
|
|
os_aiocb_t aiocb;
|
|
#endif
|
|
#ifdef FIO_HAVE_SGIO
|
|
struct sg_io_hdr hdr;
|
|
#endif
|
|
#ifdef CONFIG_GUASI
|
|
guasi_req_t greq;
|
|
#endif
|
|
#ifdef CONFIG_SOLARISAIO
|
|
aio_result_t resultp;
|
|
#endif
|
|
#ifdef FIO_HAVE_BINJECT
|
|
struct b_user_cmd buc;
|
|
#endif
|
|
#ifdef CONFIG_RDMA
|
|
struct ibv_mr *mr;
|
|
#endif
|
|
void *mmap_data;
|
|
};
|
|
};
|
|
|
|
/*
|
|
* io_ops->queue() return values
|
|
*/
|
|
enum {
|
|
FIO_Q_COMPLETED = 0, /* completed sync */
|
|
FIO_Q_QUEUED = 1, /* queued, will complete async */
|
|
FIO_Q_BUSY = 2, /* no more room, call ->commit() */
|
|
};
|
|
|
|
struct ioengine_ops {
|
|
struct flist_head list;
|
|
char name[16];
|
|
int version;
|
|
int flags;
|
|
int (*setup)(struct thread_data *);
|
|
int (*init)(struct thread_data *);
|
|
int (*prep)(struct thread_data *, struct io_u *);
|
|
int (*queue)(struct thread_data *, struct io_u *);
|
|
int (*commit)(struct thread_data *);
|
|
int (*getevents)(struct thread_data *, unsigned int, unsigned int, const struct timespec *);
|
|
struct io_u *(*event)(struct thread_data *, int);
|
|
int (*cancel)(struct thread_data *, struct io_u *);
|
|
void (*cleanup)(struct thread_data *);
|
|
int (*open_file)(struct thread_data *, struct fio_file *);
|
|
int (*close_file)(struct thread_data *, struct fio_file *);
|
|
int (*invalidate)(struct thread_data *, struct fio_file *);
|
|
int (*unlink_file)(struct thread_data *, struct fio_file *);
|
|
int (*get_file_size)(struct thread_data *, struct fio_file *);
|
|
void (*terminate)(struct thread_data *);
|
|
int (*io_u_init)(struct thread_data *, struct io_u *);
|
|
void (*io_u_free)(struct thread_data *, struct io_u *);
|
|
int option_struct_size;
|
|
struct fio_option *options;
|
|
void *data;
|
|
void *dlhandle;
|
|
};
|
|
|
|
enum fio_ioengine_flags {
|
|
FIO_SYNCIO = 1 << 0, /* io engine has synchronous ->queue */
|
|
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_UNIDIR = 1 << 5, /* engine is uni-directional */
|
|
FIO_NOIO = 1 << 6, /* thread does only pseudo IO */
|
|
FIO_PIPEIO = 1 << 7, /* input/output no seekable */
|
|
FIO_BARRIER = 1 << 8, /* engine supports barriers */
|
|
FIO_MEMALIGN = 1 << 9, /* engine wants aligned memory */
|
|
FIO_BIT_BASED = 1 << 10, /* engine uses a bit base (e.g. uses Kbit as opposed to KB) */
|
|
FIO_FAKEIO = 1 << 11, /* engine pretends to do IO */
|
|
};
|
|
|
|
/*
|
|
* External engine defined symbol to fill in the engine ops structure
|
|
*/
|
|
typedef void (*get_ioengine_t)(struct ioengine_ops **);
|
|
|
|
/*
|
|
* io engine entry points
|
|
*/
|
|
extern int __must_check td_io_init(struct thread_data *);
|
|
extern int __must_check td_io_prep(struct thread_data *, struct io_u *);
|
|
extern int __must_check td_io_queue(struct thread_data *, struct io_u *);
|
|
extern int __must_check td_io_sync(struct thread_data *, struct fio_file *);
|
|
extern int __must_check td_io_getevents(struct thread_data *, unsigned int, unsigned int, const struct timespec *);
|
|
extern int __must_check td_io_commit(struct thread_data *);
|
|
extern int __must_check td_io_open_file(struct thread_data *, struct fio_file *);
|
|
extern int td_io_close_file(struct thread_data *, struct fio_file *);
|
|
extern int td_io_unlink_file(struct thread_data *, struct fio_file *);
|
|
extern int __must_check td_io_get_file_size(struct thread_data *, struct fio_file *);
|
|
|
|
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
|
|
*/
|
|
extern struct io_u *__get_io_u(struct thread_data *);
|
|
extern struct io_u *get_io_u(struct thread_data *);
|
|
extern void put_io_u(struct thread_data *, struct io_u *);
|
|
extern void clear_io_u(struct thread_data *, struct io_u *);
|
|
extern void requeue_io_u(struct thread_data *, struct io_u **);
|
|
extern int __must_check io_u_sync_complete(struct thread_data *, struct io_u *, uint64_t *);
|
|
extern int __must_check io_u_queued_complete(struct thread_data *, int, uint64_t *);
|
|
extern void io_u_queued(struct thread_data *, struct io_u *);
|
|
extern void io_u_quiesce(struct thread_data *);
|
|
extern void io_u_log_error(struct thread_data *, struct io_u *);
|
|
extern void io_u_mark_depth(struct thread_data *, unsigned int);
|
|
extern void fill_io_buffer(struct thread_data *, void *, unsigned int, unsigned int);
|
|
extern void io_u_fill_buffer(struct thread_data *td, struct io_u *, unsigned int, unsigned int);
|
|
void io_u_mark_complete(struct thread_data *, unsigned int);
|
|
void io_u_mark_submit(struct thread_data *, unsigned int);
|
|
int queue_full(const struct thread_data *);
|
|
|
|
int do_io_u_sync(const struct thread_data *, struct io_u *);
|
|
int do_io_u_trim(const struct thread_data *, struct io_u *);
|
|
|
|
#ifdef FIO_INC_DEBUG
|
|
static inline void dprint_io_u(struct io_u *io_u, const char *p)
|
|
{
|
|
struct fio_file *f = io_u->file;
|
|
|
|
dprint(FD_IO, "%s: io_u %p: off=%llu/len=%lu/ddir=%d", p, io_u,
|
|
(unsigned long long) io_u->offset,
|
|
io_u->buflen, io_u->ddir);
|
|
if (fio_debug & (1 << FD_IO)) {
|
|
if (f)
|
|
log_info("/%s", f->file_name);
|
|
|
|
log_info("\n");
|
|
}
|
|
}
|
|
#else
|
|
#define dprint_io_u(io_u, p)
|
|
#endif
|
|
|
|
static inline enum fio_ddir acct_ddir(struct io_u *io_u)
|
|
{
|
|
if (io_u->acct_ddir != -1)
|
|
return io_u->acct_ddir;
|
|
|
|
return io_u->ddir;
|
|
}
|
|
|
|
#endif
|