179 lines
3.9 KiB
C
179 lines
3.9 KiB
C
#ifndef FIO_IO_U
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#define FIO_IO_U
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#include "compiler/compiler.h"
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#include "os/os.h"
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#include "log.h"
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#include "io_ddir.h"
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#include "debug.h"
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#include "file.h"
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#include "workqueue.h"
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#ifdef CONFIG_LIBAIO
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#include <libaio.h>
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#endif
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#ifdef CONFIG_GUASI
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#include <guasi.h>
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#endif
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enum {
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IO_U_F_FREE = 1 << 0,
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IO_U_F_FLIGHT = 1 << 1,
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IO_U_F_NO_FILE_PUT = 1 << 2,
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IO_U_F_IN_CUR_DEPTH = 1 << 3,
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IO_U_F_BUSY_OK = 1 << 4,
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IO_U_F_TRIMMED = 1 << 5,
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IO_U_F_BARRIER = 1 << 6,
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IO_U_F_VER_LIST = 1 << 7,
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};
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/*
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* The io unit
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*/
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struct io_u {
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struct timeval start_time;
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struct timeval issue_time;
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struct fio_file *file;
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unsigned int flags;
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enum fio_ddir ddir;
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/*
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* For replay workloads, we may want to account as a different
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* IO type than what is being submitted.
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*/
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enum fio_ddir acct_ddir;
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/*
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* Write generation
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*/
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unsigned short numberio;
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/*
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* Allocated/set buffer and length
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*/
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unsigned long buflen;
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unsigned long long offset;
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void *buf;
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/*
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* Initial seed for generating the buffer contents
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*/
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uint64_t rand_seed;
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/*
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* IO engine state, may be different from above when we get
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* partial transfers / residual data counts
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*/
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void *xfer_buf;
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unsigned long xfer_buflen;
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/*
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* Parameter related to pre-filled buffers and
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* their size to handle variable block sizes.
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*/
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unsigned long buf_filled_len;
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struct io_piece *ipo;
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unsigned int resid;
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unsigned int error;
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/*
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* io engine private data
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*/
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union {
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unsigned int index;
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unsigned int seen;
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void *engine_data;
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};
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union {
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struct flist_head verify_list;
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struct workqueue_work work;
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};
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/*
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* Callback for io completion
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*/
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int (*end_io)(struct thread_data *, struct io_u **);
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union {
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#ifdef CONFIG_LIBAIO
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struct iocb iocb;
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#endif
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#ifdef CONFIG_POSIXAIO
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os_aiocb_t aiocb;
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#endif
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#ifdef FIO_HAVE_SGIO
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struct sg_io_hdr hdr;
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#endif
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#ifdef CONFIG_GUASI
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guasi_req_t greq;
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#endif
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#ifdef CONFIG_SOLARISAIO
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aio_result_t resultp;
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#endif
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#ifdef FIO_HAVE_BINJECT
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struct b_user_cmd buc;
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#endif
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#ifdef CONFIG_RDMA
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struct ibv_mr *mr;
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#endif
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void *mmap_data;
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};
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};
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/*
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* io unit handling
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*/
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extern struct io_u *__get_io_u(struct thread_data *);
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extern struct io_u *get_io_u(struct thread_data *);
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extern void put_io_u(struct thread_data *, struct io_u *);
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extern void clear_io_u(struct thread_data *, struct io_u *);
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extern void requeue_io_u(struct thread_data *, struct io_u **);
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extern int __must_check io_u_sync_complete(struct thread_data *, struct io_u *);
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extern int __must_check io_u_queued_complete(struct thread_data *, int);
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extern void io_u_queued(struct thread_data *, struct io_u *);
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extern int io_u_quiesce(struct thread_data *);
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extern void io_u_log_error(struct thread_data *, struct io_u *);
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extern void io_u_mark_depth(struct thread_data *, unsigned int);
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extern void fill_io_buffer(struct thread_data *, void *, unsigned int, unsigned int);
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extern void io_u_fill_buffer(struct thread_data *td, struct io_u *, unsigned int, unsigned int);
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void io_u_mark_complete(struct thread_data *, unsigned int);
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void io_u_mark_submit(struct thread_data *, unsigned int);
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bool queue_full(const struct thread_data *);
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int do_io_u_sync(const struct thread_data *, struct io_u *);
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int do_io_u_trim(const struct thread_data *, struct io_u *);
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#ifdef FIO_INC_DEBUG
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static inline void dprint_io_u(struct io_u *io_u, const char *p)
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{
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struct fio_file *f = io_u->file;
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dprint(FD_IO, "%s: io_u %p: off=%llu/len=%lu/ddir=%d", p, io_u,
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(unsigned long long) io_u->offset,
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io_u->buflen, io_u->ddir);
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if (f)
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dprint(FD_IO, "/%s", f->file_name);
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dprint(FD_IO, "\n");
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}
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#else
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#define dprint_io_u(io_u, p)
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#endif
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static inline enum fio_ddir acct_ddir(struct io_u *io_u)
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{
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if (io_u->acct_ddir != -1)
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return io_u->acct_ddir;
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return io_u->ddir;
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}
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#define io_u_clear(td, io_u, val) \
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td_flags_clear((td), &(io_u->flags), (val))
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#define io_u_set(td, io_u, val) \
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td_flags_set((td), &(io_u)->flags, (val))
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#endif
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