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-rw-r--r--engines/rbd.c689
1 files changed, 0 insertions, 689 deletions
diff --git a/engines/rbd.c b/engines/rbd.c
deleted file mode 100644
index 4bae425c..00000000
--- a/engines/rbd.c
+++ /dev/null
@@ -1,689 +0,0 @@
-/*
- * rbd engine
- *
- * IO engine using Ceph's librbd to test RADOS Block Devices.
- *
- */
-
-#include <rbd/librbd.h>
-
-#include "../fio.h"
-#include "../optgroup.h"
-#ifdef CONFIG_RBD_BLKIN
-#include <zipkin_c.h>
-#endif
-
-#ifdef CONFIG_RBD_POLL
-/* add for poll */
-#include <poll.h>
-#include <sys/eventfd.h>
-#endif
-
-struct fio_rbd_iou {
- struct io_u *io_u;
- rbd_completion_t completion;
- int io_seen;
- int io_complete;
-#ifdef CONFIG_RBD_BLKIN
- struct blkin_trace_info info;
-#endif
-};
-
-struct rbd_data {
- rados_t cluster;
- rados_ioctx_t io_ctx;
- rbd_image_t image;
- struct io_u **aio_events;
- struct io_u **sort_events;
- int fd; /* add for poll */
- bool connected;
-};
-
-struct rbd_options {
- void *pad;
- char *cluster_name;
- char *rbd_name;
- char *pool_name;
- char *client_name;
- int busy_poll;
-};
-
-static struct fio_option options[] = {
- {
- .name = "clustername",
- .lname = "ceph cluster name",
- .type = FIO_OPT_STR_STORE,
- .help = "Cluster name for ceph",
- .off1 = offsetof(struct rbd_options, cluster_name),
- .category = FIO_OPT_C_ENGINE,
- .group = FIO_OPT_G_RBD,
- },
- {
- .name = "rbdname",
- .lname = "rbd engine rbdname",
- .type = FIO_OPT_STR_STORE,
- .help = "RBD name for RBD engine",
- .off1 = offsetof(struct rbd_options, rbd_name),
- .category = FIO_OPT_C_ENGINE,
- .group = FIO_OPT_G_RBD,
- },
- {
- .name = "pool",
- .lname = "rbd engine pool",
- .type = FIO_OPT_STR_STORE,
- .help = "Name of the pool hosting the RBD for the RBD engine",
- .off1 = offsetof(struct rbd_options, pool_name),
- .category = FIO_OPT_C_ENGINE,
- .group = FIO_OPT_G_RBD,
- },
- {
- .name = "clientname",
- .lname = "rbd engine clientname",
- .type = FIO_OPT_STR_STORE,
- .help = "Name of the ceph client to access the RBD for the RBD engine",
- .off1 = offsetof(struct rbd_options, client_name),
- .category = FIO_OPT_C_ENGINE,
- .group = FIO_OPT_G_RBD,
- },
- {
- .name = "busy_poll",
- .lname = "Busy poll",
- .type = FIO_OPT_BOOL,
- .help = "Busy poll for completions instead of sleeping",
- .off1 = offsetof(struct rbd_options, busy_poll),
- .def = "0",
- .category = FIO_OPT_C_ENGINE,
- .group = FIO_OPT_G_RBD,
- },
- {
- .name = NULL,
- },
-};
-
-static int _fio_setup_rbd_data(struct thread_data *td,
- struct rbd_data **rbd_data_ptr)
-{
- struct rbd_data *rbd;
-
- if (td->io_ops_data)
- return 0;
-
- rbd = calloc(1, sizeof(struct rbd_data));
- if (!rbd)
- goto failed;
-
- rbd->connected = false;
-
- /* add for poll, init fd: -1 */
- rbd->fd = -1;
-
- rbd->aio_events = calloc(td->o.iodepth, sizeof(struct io_u *));
- if (!rbd->aio_events)
- goto failed;
-
- rbd->sort_events = calloc(td->o.iodepth, sizeof(struct io_u *));
- if (!rbd->sort_events)
- goto failed;
-
- *rbd_data_ptr = rbd;
- return 0;
-
-failed:
- if (rbd) {
- if (rbd->aio_events)
- free(rbd->aio_events);
- if (rbd->sort_events)
- free(rbd->sort_events);
- free(rbd);
- }
- return 1;
-
-}
-
-#ifdef CONFIG_RBD_POLL
-static bool _fio_rbd_setup_poll(struct rbd_data *rbd)
-{
- int r;
-
- /* add for rbd poll */
- rbd->fd = eventfd(0, EFD_NONBLOCK);
- if (rbd->fd < 0) {
- log_err("eventfd failed.\n");
- return false;
- }
-
- r = rbd_set_image_notification(rbd->image, rbd->fd, EVENT_TYPE_EVENTFD);
- if (r < 0) {
- log_err("rbd_set_image_notification failed.\n");
- close(rbd->fd);
- rbd->fd = -1;
- return false;
- }
-
- return true;
-}
-#else
-static bool _fio_rbd_setup_poll(struct rbd_data *rbd)
-{
- return true;
-}
-#endif
-
-static int _fio_rbd_connect(struct thread_data *td)
-{
- struct rbd_data *rbd = td->io_ops_data;
- struct rbd_options *o = td->eo;
- int r;
-
- if (o->cluster_name) {
- char *client_name = NULL;
-
- /*
- * If we specify cluser name, the rados_create2
- * will not assume 'client.'. name is considered
- * as a full type.id namestr
- */
- if (o->client_name) {
- if (!index(o->client_name, '.')) {
- client_name = calloc(1, strlen("client.") +
- strlen(o->client_name) + 1);
- strcat(client_name, "client.");
- strcat(client_name, o->client_name);
- } else {
- client_name = o->client_name;
- }
- }
-
- r = rados_create2(&rbd->cluster, o->cluster_name,
- client_name, 0);
-
- if (client_name && !index(o->client_name, '.'))
- free(client_name);
- } else
- r = rados_create(&rbd->cluster, o->client_name);
-
- if (r < 0) {
- log_err("rados_create failed.\n");
- goto failed_early;
- }
-
- r = rados_conf_read_file(rbd->cluster, NULL);
- if (r < 0) {
- log_err("rados_conf_read_file failed.\n");
- goto failed_early;
- }
-
- r = rados_connect(rbd->cluster);
- if (r < 0) {
- log_err("rados_connect failed.\n");
- goto failed_shutdown;
- }
-
- r = rados_ioctx_create(rbd->cluster, o->pool_name, &rbd->io_ctx);
- if (r < 0) {
- log_err("rados_ioctx_create failed.\n");
- goto failed_shutdown;
- }
-
- r = rbd_open(rbd->io_ctx, o->rbd_name, &rbd->image, NULL /*snap */ );
- if (r < 0) {
- log_err("rbd_open failed.\n");
- goto failed_open;
- }
-
- if (!_fio_rbd_setup_poll(rbd))
- goto failed_poll;
-
- return 0;
-
-failed_poll:
- rbd_close(rbd->image);
- rbd->image = NULL;
-failed_open:
- rados_ioctx_destroy(rbd->io_ctx);
- rbd->io_ctx = NULL;
-failed_shutdown:
- rados_shutdown(rbd->cluster);
- rbd->cluster = NULL;
-failed_early:
- return 1;
-}
-
-static void _fio_rbd_disconnect(struct rbd_data *rbd)
-{
- if (!rbd)
- return;
-
- /* close eventfd */
- if (rbd->fd != -1) {
- close(rbd->fd);
- rbd->fd = -1;
- }
-
- /* shutdown everything */
- if (rbd->image) {
- rbd_close(rbd->image);
- rbd->image = NULL;
- }
-
- if (rbd->io_ctx) {
- rados_ioctx_destroy(rbd->io_ctx);
- rbd->io_ctx = NULL;
- }
-
- if (rbd->cluster) {
- rados_shutdown(rbd->cluster);
- rbd->cluster = NULL;
- }
-}
-
-static void _fio_rbd_finish_aiocb(rbd_completion_t comp, void *data)
-{
- struct fio_rbd_iou *fri = data;
- struct io_u *io_u = fri->io_u;
- ssize_t ret;
-
- /*
- * Looks like return value is 0 for success, or < 0 for
- * a specific error. So we have to assume that it can't do
- * partial completions.
- */
- ret = rbd_aio_get_return_value(fri->completion);
- if (ret < 0) {
- io_u->error = -ret;
- io_u->resid = io_u->xfer_buflen;
- } else
- io_u->error = 0;
-
- fri->io_complete = 1;
-}
-
-static struct io_u *fio_rbd_event(struct thread_data *td, int event)
-{
- struct rbd_data *rbd = td->io_ops_data;
-
- return rbd->aio_events[event];
-}
-
-static inline int fri_check_complete(struct rbd_data *rbd, struct io_u *io_u,
- unsigned int *events)
-{
- struct fio_rbd_iou *fri = io_u->engine_data;
-
- if (fri->io_complete) {
- fri->io_seen = 1;
- rbd->aio_events[*events] = io_u;
- (*events)++;
-
- rbd_aio_release(fri->completion);
- return 1;
- }
-
- return 0;
-}
-
-static inline int rbd_io_u_seen(struct io_u *io_u)
-{
- struct fio_rbd_iou *fri = io_u->engine_data;
-
- return fri->io_seen;
-}
-
-static void rbd_io_u_wait_complete(struct io_u *io_u)
-{
- struct fio_rbd_iou *fri = io_u->engine_data;
-
- rbd_aio_wait_for_complete(fri->completion);
-}
-
-static int rbd_io_u_cmp(const void *p1, const void *p2)
-{
- const struct io_u **a = (const struct io_u **) p1;
- const struct io_u **b = (const struct io_u **) p2;
- uint64_t at, bt;
-
- at = utime_since_now(&(*a)->start_time);
- bt = utime_since_now(&(*b)->start_time);
-
- if (at < bt)
- return -1;
- else if (at == bt)
- return 0;
- else
- return 1;
-}
-
-static int rbd_iter_events(struct thread_data *td, unsigned int *events,
- unsigned int min_evts, int wait)
-{
- struct rbd_data *rbd = td->io_ops_data;
- unsigned int this_events = 0;
- struct io_u *io_u;
- int i, sidx = 0;
-
-#ifdef CONFIG_RBD_POLL
- int ret = 0;
- int event_num = 0;
- struct fio_rbd_iou *fri = NULL;
- rbd_completion_t comps[min_evts];
-
- struct pollfd pfd;
- pfd.fd = rbd->fd;
- pfd.events = POLLIN;
-
- ret = poll(&pfd, 1, -1);
- if (ret <= 0)
- return 0;
-
- assert(pfd.revents & POLLIN);
-
- event_num = rbd_poll_io_events(rbd->image, comps, min_evts);
-
- for (i = 0; i < event_num; i++) {
- fri = rbd_aio_get_arg(comps[i]);
- io_u = fri->io_u;
-#else
- io_u_qiter(&td->io_u_all, io_u, i) {
-#endif
- if (!(io_u->flags & IO_U_F_FLIGHT))
- continue;
- if (rbd_io_u_seen(io_u))
- continue;
-
- if (fri_check_complete(rbd, io_u, events))
- this_events++;
- else if (wait)
- rbd->sort_events[sidx++] = io_u;
- }
-
- if (!wait || !sidx)
- return this_events;
-
- /*
- * Sort events, oldest issue first, then wait on as many as we
- * need in order of age. If we have enough events, stop waiting,
- * and just check if any of the older ones are done.
- */
- if (sidx > 1)
- qsort(rbd->sort_events, sidx, sizeof(struct io_u *), rbd_io_u_cmp);
-
- for (i = 0; i < sidx; i++) {
- io_u = rbd->sort_events[i];
-
- if (fri_check_complete(rbd, io_u, events)) {
- this_events++;
- continue;
- }
-
- /*
- * Stop waiting when we have enough, but continue checking
- * all pending IOs if they are complete.
- */
- if (*events >= min_evts)
- continue;
-
- rbd_io_u_wait_complete(io_u);
-
- if (fri_check_complete(rbd, io_u, events))
- this_events++;
- }
-
- return this_events;
-}
-
-static int fio_rbd_getevents(struct thread_data *td, unsigned int min,
- unsigned int max, const struct timespec *t)
-{
- unsigned int this_events, events = 0;
- struct rbd_options *o = td->eo;
- int wait = 0;
-
- do {
- this_events = rbd_iter_events(td, &events, min, wait);
-
- if (events >= min)
- break;
- if (this_events)
- continue;
-
- if (!o->busy_poll)
- wait = 1;
- else
- nop;
- } while (1);
-
- return events;
-}
-
-static int fio_rbd_queue(struct thread_data *td, struct io_u *io_u)
-{
- struct rbd_data *rbd = td->io_ops_data;
- struct fio_rbd_iou *fri = io_u->engine_data;
- int r = -1;
-
- fio_ro_check(td, io_u);
-
- fri->io_seen = 0;
- fri->io_complete = 0;
-
- r = rbd_aio_create_completion(fri, _fio_rbd_finish_aiocb,
- &fri->completion);
- if (r < 0) {
- log_err("rbd_aio_create_completion failed.\n");
- goto failed;
- }
-
- if (io_u->ddir == DDIR_WRITE) {
-#ifdef CONFIG_RBD_BLKIN
- blkin_init_trace_info(&fri->info);
- r = rbd_aio_write_traced(rbd->image, io_u->offset, io_u->xfer_buflen,
- io_u->xfer_buf, fri->completion, &fri->info);
-#else
- r = rbd_aio_write(rbd->image, io_u->offset, io_u->xfer_buflen,
- io_u->xfer_buf, fri->completion);
-#endif
- if (r < 0) {
- log_err("rbd_aio_write failed.\n");
- goto failed_comp;
- }
-
- } else if (io_u->ddir == DDIR_READ) {
-#ifdef CONFIG_RBD_BLKIN
- blkin_init_trace_info(&fri->info);
- r = rbd_aio_read_traced(rbd->image, io_u->offset, io_u->xfer_buflen,
- io_u->xfer_buf, fri->completion, &fri->info);
-#else
- r = rbd_aio_read(rbd->image, io_u->offset, io_u->xfer_buflen,
- io_u->xfer_buf, fri->completion);
-#endif
-
- if (r < 0) {
- log_err("rbd_aio_read failed.\n");
- goto failed_comp;
- }
- } else if (io_u->ddir == DDIR_TRIM) {
- r = rbd_aio_discard(rbd->image, io_u->offset,
- io_u->xfer_buflen, fri->completion);
- if (r < 0) {
- log_err("rbd_aio_discard failed.\n");
- goto failed_comp;
- }
- } else if (io_u->ddir == DDIR_SYNC) {
- r = rbd_aio_flush(rbd->image, fri->completion);
- if (r < 0) {
- log_err("rbd_flush failed.\n");
- goto failed_comp;
- }
- } else {
- dprint(FD_IO, "%s: Warning: unhandled ddir: %d\n", __func__,
- io_u->ddir);
- goto failed_comp;
- }
-
- return FIO_Q_QUEUED;
-failed_comp:
- rbd_aio_release(fri->completion);
-failed:
- io_u->error = -r;
- td_verror(td, io_u->error, "xfer");
- return FIO_Q_COMPLETED;
-}
-
-static int fio_rbd_init(struct thread_data *td)
-{
- int r;
- struct rbd_data *rbd = td->io_ops_data;
-
- if (rbd->connected)
- return 0;
-
- r = _fio_rbd_connect(td);
- if (r) {
- log_err("fio_rbd_connect failed, return code: %d .\n", r);
- goto failed;
- }
-
- return 0;
-
-failed:
- return 1;
-}
-
-static void fio_rbd_cleanup(struct thread_data *td)
-{
- struct rbd_data *rbd = td->io_ops_data;
-
- if (rbd) {
- _fio_rbd_disconnect(rbd);
- free(rbd->aio_events);
- free(rbd->sort_events);
- free(rbd);
- }
-}
-
-static int fio_rbd_setup(struct thread_data *td)
-{
- rbd_image_info_t info;
- struct fio_file *f;
- struct rbd_data *rbd = NULL;
- int r;
-
- /* allocate engine specific structure to deal with librbd. */
- r = _fio_setup_rbd_data(td, &rbd);
- if (r) {
- log_err("fio_setup_rbd_data failed.\n");
- goto cleanup;
- }
- td->io_ops_data = rbd;
-
- /* librbd does not allow us to run first in the main thread and later
- * in a fork child. It needs to be the same process context all the
- * time.
- */
- td->o.use_thread = 1;
-
- /* connect in the main thread to determine to determine
- * the size of the given RADOS block device. And disconnect
- * later on.
- */
- r = _fio_rbd_connect(td);
- if (r) {
- log_err("fio_rbd_connect failed.\n");
- goto cleanup;
- }
- rbd->connected = true;
-
- /* get size of the RADOS block device */
- r = rbd_stat(rbd->image, &info, sizeof(info));
- if (r < 0) {
- log_err("rbd_status failed.\n");
- goto cleanup;
- } else if (info.size == 0) {
- log_err("image size should be larger than zero.\n");
- r = -EINVAL;
- goto cleanup;
- }
-
- dprint(FD_IO, "rbd-engine: image size: %lu\n", info.size);
-
- /* taken from "net" engine. Pretend we deal with files,
- * even if we do not have any ideas about files.
- * The size of the RBD is set instead of a artificial file.
- */
- if (!td->files_index) {
- add_file(td, td->o.filename ? : "rbd", 0, 0);
- td->o.nr_files = td->o.nr_files ? : 1;
- td->o.open_files++;
- }
- f = td->files[0];
- f->real_file_size = info.size;
-
- return 0;
-
-cleanup:
- fio_rbd_cleanup(td);
- return r;
-}
-
-static int fio_rbd_open(struct thread_data *td, struct fio_file *f)
-{
- return 0;
-}
-
-static int fio_rbd_invalidate(struct thread_data *td, struct fio_file *f)
-{
-#if defined(CONFIG_RBD_INVAL)
- struct rbd_data *rbd = td->io_ops_data;
-
- return rbd_invalidate_cache(rbd->image);
-#else
- return 0;
-#endif
-}
-
-static void fio_rbd_io_u_free(struct thread_data *td, struct io_u *io_u)
-{
- struct fio_rbd_iou *fri = io_u->engine_data;
-
- if (fri) {
- io_u->engine_data = NULL;
- free(fri);
- }
-}
-
-static int fio_rbd_io_u_init(struct thread_data *td, struct io_u *io_u)
-{
- struct fio_rbd_iou *fri;
-
- fri = calloc(1, sizeof(*fri));
- fri->io_u = io_u;
- io_u->engine_data = fri;
- return 0;
-}
-
-static struct ioengine_ops ioengine = {
- .name = "rbd",
- .version = FIO_IOOPS_VERSION,
- .setup = fio_rbd_setup,
- .init = fio_rbd_init,
- .queue = fio_rbd_queue,
- .getevents = fio_rbd_getevents,
- .event = fio_rbd_event,
- .cleanup = fio_rbd_cleanup,
- .open_file = fio_rbd_open,
- .invalidate = fio_rbd_invalidate,
- .options = options,
- .io_u_init = fio_rbd_io_u_init,
- .io_u_free = fio_rbd_io_u_free,
- .option_struct_size = sizeof(struct rbd_options),
-};
-
-static void fio_init fio_rbd_register(void)
-{
- register_ioengine(&ioengine);
-}
-
-static void fio_exit fio_rbd_unregister(void)
-{
- unregister_ioengine(&ioengine);
-}
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