#include <unistd.h>
#include <errno.h>
#include <libaio.h>
+#include <sys/time.h>
+#include <sys/resource.h>
#include "../fio.h"
#include "../lib/pow2.h"
#include "../optgroup.h"
#include "../lib/memalign.h"
-#ifndef IOCB_FLAG_HIPRI
-#define IOCB_FLAG_HIPRI (1 << 2)
-#endif
-
-#ifndef IOCTX_FLAG_USERIOCB
-#define IOCTX_FLAG_USERIOCB (1 << 0)
-#endif
-#ifndef IOCTX_FLAG_IOPOLL
-#define IOCTX_FLAG_IOPOLL (1 << 1)
-#endif
-#ifndef IOCTX_FLAG_FIXEDBUFS
-#define IOCTX_FLAG_FIXEDBUFS (1 << 2)
-#endif
-
static int fio_libaio_commit(struct thread_data *td);
struct libaio_data {
struct iocb **iocbs;
struct io_u **io_us;
- struct iocb *user_iocbs;
struct io_u **io_u_index;
/*
void *pad;
unsigned int userspace_reap;
unsigned int hipri;
- unsigned int useriocb;
- unsigned int fixedbufs;
};
static struct fio_option options[] = {
.category = FIO_OPT_C_ENGINE,
.group = FIO_OPT_G_LIBAIO,
},
- {
- .name = "hipri",
- .lname = "High Priority",
- .type = FIO_OPT_STR_SET,
- .off1 = offsetof(struct libaio_options, hipri),
- .help = "Use polled IO completions",
- .category = FIO_OPT_C_ENGINE,
- .group = FIO_OPT_G_LIBAIO,
- },
- {
- .name = "useriocb",
- .lname = "User IOCBs",
- .type = FIO_OPT_STR_SET,
- .off1 = offsetof(struct libaio_options, useriocb),
- .help = "Use user mapped IOCBs",
- .category = FIO_OPT_C_ENGINE,
- .group = FIO_OPT_G_LIBAIO,
- },
- {
- .name = "fixedbufs",
- .lname = "Fixed (pre-mapped) IO buffers",
- .type = FIO_OPT_STR_SET,
- .off1 = offsetof(struct libaio_options, fixedbufs),
- .help = "Pre map IO buffers",
- .category = FIO_OPT_C_ENGINE,
- .group = FIO_OPT_G_LIBAIO,
- },
{
.name = NULL,
},
static int fio_libaio_prep(struct thread_data fio_unused *td, struct io_u *io_u)
{
- struct libaio_data *ld = td->io_ops_data;
struct fio_file *f = io_u->file;
- struct libaio_options *o = td->eo;
- struct iocb *iocb;
-
- if (o->useriocb)
- iocb = &ld->user_iocbs[io_u->index];
- else
- iocb = &io_u->iocb;
+ struct iocb *iocb = &io_u->iocb;
if (io_u->ddir == DDIR_READ) {
- if (o->fixedbufs) {
- iocb->aio_fildes = f->fd;
- iocb->aio_lio_opcode = IO_CMD_PREAD;
- iocb->u.c.offset = io_u->offset;
- } else
- io_prep_pread(iocb, f->fd, io_u->xfer_buf, io_u->xfer_buflen, io_u->offset);
+ io_prep_pread(iocb, f->fd, io_u->xfer_buf, io_u->xfer_buflen, io_u->offset);
} else if (io_u->ddir == DDIR_WRITE) {
- if (o->fixedbufs) {
- iocb->aio_fildes = f->fd;
- iocb->aio_lio_opcode = IO_CMD_PWRITE;
- iocb->u.c.offset = io_u->offset;
- } else
- io_prep_pwrite(iocb, f->fd, io_u->xfer_buf, io_u->xfer_buflen, io_u->offset);
+ io_prep_pwrite(iocb, f->fd, io_u->xfer_buf, io_u->xfer_buflen, io_u->offset);
} else if (ddir_sync(io_u->ddir))
io_prep_fsync(iocb, f->fd);
static struct io_u *fio_libaio_event(struct thread_data *td, int event)
{
struct libaio_data *ld = td->io_ops_data;
- struct libaio_options *o = td->eo;
struct io_event *ev;
struct io_u *io_u;
ev = ld->aio_events + event;
- if (o->useriocb) {
- int index = (int) (uintptr_t) ev->obj;
- io_u = ld->io_u_index[index];
- } else
- io_u = container_of(ev->obj, struct io_u, iocb);
+ io_u = container_of(ev->obj, struct io_u, iocb);
if (ev->res != io_u->xfer_buflen) {
if (ev->res > io_u->xfer_buflen)
struct io_u *io_u)
{
struct libaio_data *ld = td->io_ops_data;
- struct libaio_options *o = td->eo;
fio_ro_check(td, io_u);
return FIO_Q_COMPLETED;
}
- if (o->useriocb)
- ld->iocbs[ld->head] = (struct iocb *) (uintptr_t) io_u->index;
- else
- ld->iocbs[ld->head] = &io_u->iocb;
-
+ ld->iocbs[ld->head] = &io_u->iocb;
ld->io_us[ld->head] = io_u;
ring_inc(ld, &ld->head, 1);
ld->queued++;
free(ld->aio_events);
free(ld->iocbs);
free(ld->io_us);
- if (ld->user_iocbs) {
- size_t size = td->o.iodepth * sizeof(struct iocb);
- fio_memfree(ld->user_iocbs, size, false);
- }
free(ld);
}
}
-static int fio_libaio_old_queue_init(struct libaio_data *ld, unsigned int depth,
- bool hipri, bool useriocb, bool fixedbufs)
-{
- if (hipri) {
- log_err("fio: polled aio not available on your platform\n");
- return 1;
- }
- if (useriocb) {
- log_err("fio: user mapped iocbs not available on your platform\n");
- return 1;
- }
- if (fixedbufs) {
- log_err("fio: fixed buffers not available on your platform\n");
- return 1;
- }
-
- return io_queue_init(depth, &ld->aio_ctx);
-}
-
-static int fio_libaio_queue_init(struct libaio_data *ld, unsigned int depth,
- bool hipri, bool useriocb, bool fixedbufs)
-{
-#ifdef __NR_sys_io_setup2
- int ret, flags = 0;
-
- if (hipri)
- flags |= IOCTX_FLAG_IOPOLL;
- if (useriocb)
- flags |= IOCTX_FLAG_USERIOCB;
- if (fixedbufs)
- flags |= IOCTX_FLAG_FIXEDBUFS;
-
- ret = syscall(__NR_sys_io_setup2, depth, flags, ld->user_iocbs,
- &ld->aio_ctx);
- if (!ret)
- return 0;
- /* fall through to old syscall */
-#endif
- return fio_libaio_old_queue_init(ld, depth, hipri, useriocb, fixedbufs);
-}
-
static int fio_libaio_post_init(struct thread_data *td)
{
struct libaio_data *ld = td->io_ops_data;
- struct libaio_options *o = td->eo;
- struct io_u *io_u;
- struct iocb *iocb;
- int err = 0;
-
- if (o->fixedbufs) {
- int i;
+ int err;
- for (i = 0; i < td->o.iodepth; i++) {
- io_u = ld->io_u_index[i];
- iocb = &ld->user_iocbs[i];
- iocb->u.c.buf = io_u->buf;
- iocb->u.c.nbytes = td_max_bs(td);
-
- iocb->u.c.flags = 0;
- if (o->hipri)
- iocb->u.c.flags |= IOCB_FLAG_HIPRI;
- }
- }
-
- err = fio_libaio_queue_init(ld, td->o.iodepth, o->hipri, o->useriocb,
- o->fixedbufs);
+ err = io_queue_init(td->o.iodepth, &ld->aio_ctx);
if (err) {
td_verror(td, -err, "io_queue_init");
return 1;
static int fio_libaio_init(struct thread_data *td)
{
- struct libaio_options *o = td->eo;
struct libaio_data *ld;
ld = calloc(1, sizeof(*ld));
- if (o->useriocb) {
- size_t size;
-
- ld->io_u_index = calloc(td->o.iodepth, sizeof(struct io_u *));
- size = td->o.iodepth * sizeof(struct iocb);
- ld->user_iocbs = fio_memalign(page_size, size, false);
- memset(ld->user_iocbs, 0, size);
- }
-
ld->entries = td->o.iodepth;
ld->is_pow2 = is_power_of_2(ld->entries);
ld->aio_events = calloc(ld->entries, sizeof(struct io_event));
return 0;
}
-static int fio_libaio_io_u_init(struct thread_data *td, struct io_u *io_u)
-{
- struct libaio_options *o = td->eo;
-
- if (o->useriocb) {
- struct libaio_data *ld = td->io_ops_data;
-
- ld->io_u_index[io_u->index] = io_u;
- }
-
- return 0;
-}
-
static struct ioengine_ops ioengine = {
.name = "libaio",
.version = FIO_IOOPS_VERSION,
+ .flags = FIO_ASYNCIO_SYNC_TRIM,
.init = fio_libaio_init,
.post_init = fio_libaio_post_init,
- .io_u_init = fio_libaio_io_u_init,
.prep = fio_libaio_prep,
.queue = fio_libaio_queue,
.commit = fio_libaio_commit,
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