Drop EXTFLAG and lib references
[fio.git] / engines / guasi.c
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1/*
2 * guasi engine
3 *
4 * IO engine using the GUASI library.
5 *
0ac5d398 6 * Before running make. You'll need the GUASI lib as well:
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7 *
8 * http://www.xmailserver.org/guasi-lib.html
9 *
10 */
11#include <stdio.h>
12#include <stdlib.h>
13#include <unistd.h>
14#include <errno.h>
15#include <assert.h>
16
17#include "../fio.h"
609342ff 18
609342ff 19#define GFIO_MIN_THREADS 32
d6c6810f 20#ifndef GFIO_MAX_THREADS
97c26cbe 21#define GFIO_MAX_THREADS 2000
d6c6810f 22#endif
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23
24#include <guasi.h>
25#include <guasi_syscalls.h>
26
27#ifdef GFIO_DEBUG
28#define GDBG_PRINT(a) printf a
29#else
30#define GDBG_PRINT(a) (void) 0
31#endif
32
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33struct guasi_data {
34 guasi_t hctx;
35 int max_reqs;
36 guasi_req_t *reqs;
37 struct io_u **io_us;
46eaa157 38 int queued_nr;
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39 int reqs_nr;
40};
41
42static int fio_guasi_prep(struct thread_data fio_unused *td, struct io_u *io_u)
43{
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44
45 GDBG_PRINT(("fio_guasi_prep(%p)\n", io_u));
46eaa157 46 io_u->greq = NULL;
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47
48 return 0;
49}
50
51static struct io_u *fio_guasi_event(struct thread_data *td, int event)
52{
53 struct guasi_data *ld = td->io_ops->data;
54 struct io_u *io_u;
55 struct guasi_reqinfo rinf;
56
57 GDBG_PRINT(("fio_guasi_event(%d)\n", event));
58 if (guasi_req_info(ld->reqs[event], &rinf) < 0) {
07257263 59 log_err("guasi_req_info(%d) FAILED!\n", event);
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60 return NULL;
61 }
62 io_u = rinf.asid;
66b83d9a 63 io_u->error = EINPROGRESS;
609342ff 64 GDBG_PRINT(("fio_guasi_event(%d) -> %p\n", event, io_u));
66b83d9a 65 if (rinf.status == GUASI_STATUS_COMPLETE) {
609342ff 66 io_u->error = rinf.result;
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67 if (io_u->ddir == DDIR_READ ||
68 io_u->ddir == DDIR_WRITE) {
69 io_u->error = 0;
70 if (rinf.result != (long) io_u->xfer_buflen) {
71 if (rinf.result >= 0)
72 io_u->resid = io_u->xfer_buflen - rinf.result;
73 else
74 io_u->error = rinf.error;
75 }
76 }
77 }
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78
79 return io_u;
80}
81
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82static int fio_guasi_getevents(struct thread_data *td, unsigned int min,
83 unsigned int max, struct timespec *t)
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84{
85 struct guasi_data *ld = td->io_ops->data;
46eaa157 86 int n, r;
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87 long timeo = -1;
88
89 GDBG_PRINT(("fio_guasi_getevents(%d, %d)\n", min, max));
90 if (min > ld->max_reqs)
91 min = ld->max_reqs;
92 if (max > ld->max_reqs)
93 max = ld->max_reqs;
94 if (t)
95 timeo = t->tv_sec * 1000L + t->tv_nsec / 1000000L;
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96 for (n = 0; n < ld->reqs_nr; n++)
97 guasi_req_free(ld->reqs[n]);
98 n = 0;
609342ff 99 do {
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100 r = guasi_fetch(ld->hctx, ld->reqs + n, min - n,
101 max - n, timeo);
102 if (r < 0) {
07257263 103 log_err("guasi_fetch() FAILED! (%d)\n", r);
609342ff 104 break;
97c26cbe 105 }
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106 n += r;
107 if (n >= min)
108 break;
109 } while (1);
46eaa157 110 ld->reqs_nr = n;
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111 GDBG_PRINT(("fio_guasi_getevents() -> %d\n", n));
112
113 return n;
114}
115
116static int fio_guasi_queue(struct thread_data *td, struct io_u *io_u)
117{
118 struct guasi_data *ld = td->io_ops->data;
119
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120 fio_ro_check(td, io_u);
121
609342ff 122 GDBG_PRINT(("fio_guasi_queue(%p)\n", io_u));
46eaa157 123 if (ld->queued_nr == (int) td->o.iodepth)
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124 return FIO_Q_BUSY;
125
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126 ld->io_us[ld->queued_nr] = io_u;
127 ld->queued_nr++;
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128 return FIO_Q_QUEUED;
129}
130
97c26cbe 131static void fio_guasi_queued(struct thread_data *td, struct io_u **io_us, int nr)
609342ff 132{
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133 int i;
134 struct io_u *io_u;
609342ff 135 struct timeval now;
609342ff 136
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137 if (!fio_fill_issue_time(td))
138 return;
139
838bc709 140 io_u_mark_submit(td, nr);
609342ff 141 fio_gettime(&now, NULL);
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142 for (i = 0; i < nr; i++) {
143 io_u = io_us[i];
144 memcpy(&io_u->issue_time, &now, sizeof(now));
145 io_u_queued(td, io_u);
146 }
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147}
148
149static int fio_guasi_commit(struct thread_data *td)
150{
151 struct guasi_data *ld = td->io_ops->data;
152 int i;
153 struct io_u *io_u;
154 struct fio_file *f;
155
d6c6810f 156 GDBG_PRINT(("fio_guasi_commit(%d)\n", ld->queued_nr));
46eaa157 157 for (i = 0; i < ld->queued_nr; i++) {
609342ff 158 io_u = ld->io_us[i];
d6c6810f 159 GDBG_PRINT(("fio_guasi_commit(%d) --> %p\n", i, io_u));
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160 f = io_u->file;
161 io_u->greq = NULL;
162 if (io_u->ddir == DDIR_READ)
163 io_u->greq = guasi__pread(ld->hctx, ld, io_u, 0,
164 f->fd, io_u->xfer_buf, io_u->xfer_buflen,
165 io_u->offset);
166 else if (io_u->ddir == DDIR_WRITE)
167 io_u->greq = guasi__pwrite(ld->hctx, ld, io_u, 0,
168 f->fd, io_u->xfer_buf, io_u->xfer_buflen,
169 io_u->offset);
5f9099ea 170 else if (ddir_sync(io_u->ddir))
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171 io_u->greq = guasi__fsync(ld->hctx, ld, io_u, 0, f->fd);
172 else {
07257263 173 log_err("fio_guasi_commit() FAILED: unknow request %d\n",
66b83d9a 174 io_u->ddir);
609342ff 175 }
97c26cbe 176 if (io_u->greq == NULL) {
07257263 177 log_err("fio_guasi_commit() FAILED: submit failed (%s)\n",
d6c6810f 178 strerror(errno));
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179 return -1;
180 }
609342ff 181 }
97c26cbe 182 fio_guasi_queued(td, ld->io_us, i);
46eaa157 183 ld->queued_nr = 0;
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184 GDBG_PRINT(("fio_guasi_commit() -> %d\n", i));
185
186 return 0;
187}
188
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189static int fio_guasi_cancel(struct thread_data fio_unused *td,
190 struct io_u *io_u)
609342ff 191{
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192 GDBG_PRINT(("fio_guasi_cancel(%p) req=%p\n", io_u, io_u->greq));
193 if (io_u->greq != NULL)
194 guasi_req_cancel(io_u->greq);
609342ff 195
46eaa157 196 return 0;
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197}
198
199static void fio_guasi_cleanup(struct thread_data *td)
200{
201 struct guasi_data *ld = td->io_ops->data;
8999fe9a 202 int n;
609342ff 203
46eaa157 204 GDBG_PRINT(("fio_guasi_cleanup(%p)\n", ld));
609342ff 205 if (ld) {
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206 for (n = 0; n < ld->reqs_nr; n++)
207 guasi_req_free(ld->reqs[n]);
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208 guasi_free(ld->hctx);
209 free(ld->reqs);
210 free(ld->io_us);
211 free(ld);
609342ff 212 }
46eaa157 213 GDBG_PRINT(("fio_guasi_cleanup(%p) DONE\n", ld));
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214}
215
216static int fio_guasi_init(struct thread_data *td)
217{
218 int maxthr;
219 struct guasi_data *ld = malloc(sizeof(*ld));
220
46eaa157 221 GDBG_PRINT(("fio_guasi_init(): depth=%d\n", td->o.iodepth));
609342ff 222 memset(ld, 0, sizeof(*ld));
46eaa157 223 maxthr = td->o.iodepth > GFIO_MIN_THREADS ? td->o.iodepth: GFIO_MIN_THREADS;
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224 if (maxthr > GFIO_MAX_THREADS)
225 maxthr = GFIO_MAX_THREADS;
0798ba36 226 if ((ld->hctx = guasi_create(GFIO_MIN_THREADS, maxthr, 1)) == NULL) {
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227 td_verror(td, errno, "guasi_create");
228 free(ld);
229 return 1;
230 }
46eaa157 231 ld->max_reqs = td->o.iodepth;
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232 ld->reqs = malloc(ld->max_reqs * sizeof(guasi_req_t));
233 ld->io_us = malloc(ld->max_reqs * sizeof(struct io_u *));
234 memset(ld->io_us, 0, ld->max_reqs * sizeof(struct io_u *));
46eaa157 235 ld->queued_nr = 0;
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236 ld->reqs_nr = 0;
237
238 td->io_ops->data = ld;
46eaa157 239 GDBG_PRINT(("fio_guasi_init(): depth=%d -> %p\n", td->o.iodepth, ld));
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240
241 return 0;
242}
243
244static struct ioengine_ops ioengine = {
245 .name = "guasi",
246 .version = FIO_IOOPS_VERSION,
247 .init = fio_guasi_init,
248 .prep = fio_guasi_prep,
249 .queue = fio_guasi_queue,
250 .commit = fio_guasi_commit,
251 .cancel = fio_guasi_cancel,
252 .getevents = fio_guasi_getevents,
253 .event = fio_guasi_event,
254 .cleanup = fio_guasi_cleanup,
255 .open_file = generic_open_file,
256 .close_file = generic_close_file,
df9c26b1 257 .get_file_size = generic_get_file_size,
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258};
259
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260static void fio_init fio_guasi_register(void)
261{
262 register_ioengine(&ioengine);
263}
264
265static void fio_exit fio_guasi_unregister(void)
266{
267 unregister_ioengine(&ioengine);
268}
269