Commit | Line | Data |
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609342ff DL |
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: |
609342ff DL |
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 |
609342ff DL |
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 | ||
609342ff DL |
33 | struct 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; |
609342ff DL |
39 | int reqs_nr; |
40 | }; | |
41 | ||
42 | static int fio_guasi_prep(struct thread_data fio_unused *td, struct io_u *io_u) | |
43 | { | |
609342ff DL |
44 | |
45 | GDBG_PRINT(("fio_guasi_prep(%p)\n", io_u)); | |
46eaa157 | 46 | io_u->greq = NULL; |
609342ff DL |
47 | |
48 | return 0; | |
49 | } | |
50 | ||
51 | static 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); |
609342ff DL |
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; |
66b83d9a DL |
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 | } | |
609342ff DL |
78 | |
79 | return io_u; | |
80 | } | |
81 | ||
e7d2e616 | 82 | static int fio_guasi_getevents(struct thread_data *td, unsigned int min, |
1f440ece | 83 | unsigned int max, const struct timespec *t) |
609342ff DL |
84 | { |
85 | struct guasi_data *ld = td->io_ops->data; | |
46eaa157 | 86 | int n, r; |
609342ff DL |
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; | |
46eaa157 DL |
96 | for (n = 0; n < ld->reqs_nr; n++) |
97 | guasi_req_free(ld->reqs[n]); | |
98 | n = 0; | |
609342ff | 99 | do { |
97c26cbe DL |
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 | } |
609342ff DL |
106 | n += r; |
107 | if (n >= min) | |
108 | break; | |
109 | } while (1); | |
46eaa157 | 110 | ld->reqs_nr = n; |
609342ff DL |
111 | GDBG_PRINT(("fio_guasi_getevents() -> %d\n", n)); |
112 | ||
113 | return n; | |
114 | } | |
115 | ||
116 | static int fio_guasi_queue(struct thread_data *td, struct io_u *io_u) | |
117 | { | |
118 | struct guasi_data *ld = td->io_ops->data; | |
119 | ||
7101d9c2 JA |
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) |
609342ff DL |
124 | return FIO_Q_BUSY; |
125 | ||
46eaa157 DL |
126 | ld->io_us[ld->queued_nr] = io_u; |
127 | ld->queued_nr++; | |
609342ff DL |
128 | return FIO_Q_QUEUED; |
129 | } | |
130 | ||
97c26cbe | 131 | static void fio_guasi_queued(struct thread_data *td, struct io_u **io_us, int nr) |
609342ff | 132 | { |
97c26cbe DL |
133 | int i; |
134 | struct io_u *io_u; | |
609342ff | 135 | struct timeval now; |
609342ff | 136 | |
12d9d841 JA |
137 | if (!fio_fill_issue_time(td)) |
138 | return; | |
139 | ||
838bc709 | 140 | io_u_mark_submit(td, nr); |
609342ff | 141 | fio_gettime(&now, NULL); |
97c26cbe DL |
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 | } | |
609342ff DL |
147 | } |
148 | ||
149 | static 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)); |
609342ff DL |
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)) |
609342ff DL |
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)); |
46eaa157 DL |
179 | return -1; |
180 | } | |
609342ff | 181 | } |
97c26cbe | 182 | fio_guasi_queued(td, ld->io_us, i); |
46eaa157 | 183 | ld->queued_nr = 0; |
609342ff DL |
184 | GDBG_PRINT(("fio_guasi_commit() -> %d\n", i)); |
185 | ||
186 | return 0; | |
187 | } | |
188 | ||
ffa59cea JA |
189 | static int fio_guasi_cancel(struct thread_data fio_unused *td, |
190 | struct io_u *io_u) | |
609342ff | 191 | { |
46eaa157 DL |
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; |
609342ff DL |
197 | } |
198 | ||
199 | static 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) { |
8999fe9a DL |
206 | for (n = 0; n < ld->reqs_nr; n++) |
207 | guasi_req_free(ld->reqs[n]); | |
609342ff DL |
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)); |
609342ff DL |
214 | } |
215 | ||
216 | static 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; |
d6c6810f DL |
224 | if (maxthr > GFIO_MAX_THREADS) |
225 | maxthr = GFIO_MAX_THREADS; | |
0798ba36 | 226 | if ((ld->hctx = guasi_create(GFIO_MIN_THREADS, maxthr, 1)) == NULL) { |
609342ff DL |
227 | td_verror(td, errno, "guasi_create"); |
228 | free(ld); | |
229 | return 1; | |
230 | } | |
46eaa157 | 231 | ld->max_reqs = td->o.iodepth; |
609342ff DL |
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; |
609342ff DL |
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)); |
609342ff DL |
240 | |
241 | return 0; | |
242 | } | |
243 | ||
244 | static 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, |
609342ff DL |
258 | }; |
259 | ||
609342ff DL |
260 | static void fio_init fio_guasi_register(void) |
261 | { | |
262 | register_ioengine(&ioengine); | |
263 | } | |
264 | ||
265 | static void fio_exit fio_guasi_unregister(void) | |
266 | { | |
267 | unregister_ioengine(&ioengine); | |
268 | } | |
269 |