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Jens Axboeed92ac02007-02-06 14:43:52 +01001/*
Jens Axboeda751ca2007-03-14 10:59:33 +01002 * net engine
3 *
4 * IO engine that reads/writes to/from sockets.
5 *
Jens Axboeed92ac02007-02-06 14:43:52 +01006 */
7#include <stdio.h>
8#include <stdlib.h>
9#include <unistd.h>
Steven Noonan842805f2012-12-01 08:16:55 +000010#include <signal.h>
Jens Axboeed92ac02007-02-06 14:43:52 +010011#include <errno.h>
12#include <assert.h>
13#include <netinet/in.h>
Steven Noonan70a78782012-11-28 14:52:36 -080014#include <netinet/tcp.h>
Jens Axboeed92ac02007-02-06 14:43:52 +010015#include <arpa/inet.h>
16#include <netdb.h>
Jens Axboe5fdd1242007-02-11 04:00:37 +010017#include <sys/poll.h>
Jens Axboe72920562008-06-02 12:30:06 +020018#include <sys/types.h>
Jens Axboe0fd666b2011-10-06 20:08:53 +020019#include <sys/stat.h>
Jens Axboe72920562008-06-02 12:30:06 +020020#include <sys/socket.h>
Jens Axboe0fd666b2011-10-06 20:08:53 +020021#include <sys/un.h>
Jens Axboeed92ac02007-02-06 14:43:52 +010022
23#include "../fio.h"
Jens Axboeed92ac02007-02-06 14:43:52 +010024
Jens Axboeb5af8292007-03-08 12:43:13 +010025struct netio_data {
26 int listenfd;
Jens Axboe9cce02e2007-06-22 15:42:21 +020027 int use_splice;
28 int pipes[2];
Jens Axboeb5af8292007-03-08 12:43:13 +010029 struct sockaddr_in addr;
Jens Axboe0fd666b2011-10-06 20:08:53 +020030 struct sockaddr_un addr_un;
Jens Axboeb5af8292007-03-08 12:43:13 +010031};
Jens Axboeed92ac02007-02-06 14:43:52 +010032
Steven Langde890a12011-11-09 14:03:34 +010033struct netio_options {
34 struct thread_data *td;
35 unsigned int port;
36 unsigned int proto;
37 unsigned int listen;
Jens Axboe6f73a7f2012-11-30 09:59:20 +010038 unsigned int pingpong;
Steven Noonan70a78782012-11-28 14:52:36 -080039 unsigned int nodelay;
Steven Langde890a12011-11-09 14:03:34 +010040};
41
Jens Axboe664fb3b2009-01-19 13:26:36 +010042struct udp_close_msg {
43 uint32_t magic;
44 uint32_t cmd;
45};
46
47enum {
48 FIO_LINK_CLOSE = 0x89,
Jens Axboeb96d2432012-11-30 08:27:46 +010049 FIO_LINK_OPEN_CLOSE_MAGIC = 0x6c696e6b,
50 FIO_LINK_OPEN = 0x98,
Jens Axboe0fd666b2011-10-06 20:08:53 +020051
52 FIO_TYPE_TCP = 1,
53 FIO_TYPE_UDP = 2,
54 FIO_TYPE_UNIX = 3,
Jens Axboe664fb3b2009-01-19 13:26:36 +010055};
56
Steven Langde890a12011-11-09 14:03:34 +010057static int str_hostname_cb(void *data, const char *input);
58static struct fio_option options[] = {
59 {
60 .name = "hostname",
61 .type = FIO_OPT_STR_STORE,
62 .cb = str_hostname_cb,
63 .help = "Hostname for net IO engine",
64 },
65 {
66 .name = "port",
67 .type = FIO_OPT_INT,
68 .off1 = offsetof(struct netio_options, port),
69 .minval = 1,
70 .maxval = 65535,
71 .help = "Port to use for TCP or UDP net connections",
72 },
73 {
74 .name = "protocol",
75 .alias = "proto",
76 .type = FIO_OPT_STR,
77 .off1 = offsetof(struct netio_options, proto),
78 .help = "Network protocol to use",
79 .def = "tcp",
80 .posval = {
81 { .ival = "tcp",
82 .oval = FIO_TYPE_TCP,
83 .help = "Transmission Control Protocol",
84 },
85 { .ival = "udp",
86 .oval = FIO_TYPE_UDP,
Bruce Cranf5cc3d02012-10-10 08:17:44 -060087 .help = "User Datagram Protocol",
Steven Langde890a12011-11-09 14:03:34 +010088 },
89 { .ival = "unix",
90 .oval = FIO_TYPE_UNIX,
91 .help = "UNIX domain socket",
92 },
93 },
94 },
Jens Axboe1eafa372013-01-31 10:19:51 +010095#ifdef CONFIG_TCP_NODELAY
Steven Langde890a12011-11-09 14:03:34 +010096 {
Steven Noonan70a78782012-11-28 14:52:36 -080097 .name = "nodelay",
98 .type = FIO_OPT_BOOL,
99 .off1 = offsetof(struct netio_options, nodelay),
100 .help = "Use TCP_NODELAY on TCP connections",
101 },
Jens Axboe1eafa372013-01-31 10:19:51 +0100102#endif
Steven Noonan70a78782012-11-28 14:52:36 -0800103 {
Steven Langde890a12011-11-09 14:03:34 +0100104 .name = "listen",
105 .type = FIO_OPT_STR_SET,
106 .off1 = offsetof(struct netio_options, listen),
107 .help = "Listen for incoming TCP connections",
108 },
109 {
Jens Axboe6f73a7f2012-11-30 09:59:20 +0100110 .name = "pingpong",
111 .type = FIO_OPT_STR_SET,
112 .off1 = offsetof(struct netio_options, pingpong),
113 .help = "Ping-pong IO requests",
114 },
115 {
Steven Langde890a12011-11-09 14:03:34 +0100116 .name = NULL,
117 },
118};
119
Jens Axboe371d4562009-01-19 10:17:06 +0100120/*
121 * Return -1 for error and 'nr events' for a positive number
122 * of events
123 */
124static int poll_wait(struct thread_data *td, int fd, short events)
125{
126 struct pollfd pfd;
127 int ret;
128
129 while (!td->terminate) {
130 pfd.fd = fd;
131 pfd.events = events;
132 ret = poll(&pfd, 1, -1);
133 if (ret < 0) {
134 if (errno == EINTR)
Jens Axboed5b388a2009-01-19 12:38:27 +0100135 break;
Jens Axboe371d4562009-01-19 10:17:06 +0100136
137 td_verror(td, errno, "poll");
138 return -1;
139 } else if (!ret)
140 continue;
141
142 break;
143 }
144
145 if (pfd.revents & events)
146 return 1;
Jens Axboe371d4562009-01-19 10:17:06 +0100147
148 return -1;
149}
150
Jens Axboeed92ac02007-02-06 14:43:52 +0100151static int fio_netio_prep(struct thread_data *td, struct io_u *io_u)
152{
Steven Langde890a12011-11-09 14:03:34 +0100153 struct netio_options *o = td->eo;
Jens Axboeed92ac02007-02-06 14:43:52 +0100154
Jens Axboe7a6499d2007-02-07 09:35:29 +0100155 /*
156 * Make sure we don't see spurious reads to a receiver, and vice versa
157 */
Steven Langde890a12011-11-09 14:03:34 +0100158 if (o->proto == FIO_TYPE_TCP)
159 return 0;
160
161 if ((o->listen && io_u->ddir == DDIR_WRITE) ||
162 (!o->listen && io_u->ddir == DDIR_READ)) {
Jens Axboee1161c32007-02-22 19:36:48 +0100163 td_verror(td, EINVAL, "bad direction");
Jens Axboe7a6499d2007-02-07 09:35:29 +0100164 return 1;
Jens Axboeed92ac02007-02-06 14:43:52 +0100165 }
Bruce Cran3f457be2012-10-10 13:37:41 +0100166
Jens Axboef85ac252008-03-01 18:09:49 +0100167 return 0;
Jens Axboeed92ac02007-02-06 14:43:52 +0100168}
169
Jens Axboe67bf9822013-01-10 11:23:19 +0100170#ifdef CONFIG_LINUX_SPLICE
Jens Axboecd963e12007-06-24 21:41:46 +0200171static int splice_io_u(int fdin, int fdout, unsigned int len)
Jens Axboe9cce02e2007-06-22 15:42:21 +0200172{
Jens Axboe9cce02e2007-06-22 15:42:21 +0200173 int bytes = 0;
174
175 while (len) {
Jens Axboecd963e12007-06-24 21:41:46 +0200176 int ret = splice(fdin, NULL, fdout, NULL, len, 0);
Jens Axboe9cce02e2007-06-22 15:42:21 +0200177
178 if (ret < 0) {
179 if (!bytes)
180 bytes = ret;
181
182 break;
183 } else if (!ret)
184 break;
185
186 bytes += ret;
Jens Axboef657a2f2007-06-22 20:40:10 +0200187 len -= ret;
Jens Axboe9cce02e2007-06-22 15:42:21 +0200188 }
189
190 return bytes;
191}
192
193/*
Jens Axboecd963e12007-06-24 21:41:46 +0200194 * Receive bytes from a socket and fill them into the internal pipe
195 */
196static int splice_in(struct thread_data *td, struct io_u *io_u)
197{
198 struct netio_data *nd = td->io_ops->data;
199
200 return splice_io_u(io_u->file->fd, nd->pipes[1], io_u->xfer_buflen);
201}
202
203/*
Jens Axboe9cce02e2007-06-22 15:42:21 +0200204 * Transmit 'len' bytes from the internal pipe
205 */
206static int splice_out(struct thread_data *td, struct io_u *io_u,
207 unsigned int len)
208{
209 struct netio_data *nd = td->io_ops->data;
Jens Axboecd963e12007-06-24 21:41:46 +0200210
211 return splice_io_u(nd->pipes[0], io_u->file->fd, len);
212}
213
214static int vmsplice_io_u(struct io_u *io_u, int fd, unsigned int len)
215{
216 struct iovec iov = {
217 .iov_base = io_u->xfer_buf,
218 .iov_len = len,
219 };
Jens Axboe9cce02e2007-06-22 15:42:21 +0200220 int bytes = 0;
221
Jens Axboecd963e12007-06-24 21:41:46 +0200222 while (iov.iov_len) {
223 int ret = vmsplice(fd, &iov, 1, SPLICE_F_MOVE);
Jens Axboe9cce02e2007-06-22 15:42:21 +0200224
225 if (ret < 0) {
226 if (!bytes)
227 bytes = ret;
Jens Axboe9cce02e2007-06-22 15:42:21 +0200228 break;
229 } else if (!ret)
230 break;
231
Jens Axboecd963e12007-06-24 21:41:46 +0200232 iov.iov_len -= ret;
233 iov.iov_base += ret;
Jens Axboe9cce02e2007-06-22 15:42:21 +0200234 bytes += ret;
Jens Axboe9cce02e2007-06-22 15:42:21 +0200235 }
236
237 return bytes;
Jens Axboecd963e12007-06-24 21:41:46 +0200238
Jens Axboe9cce02e2007-06-22 15:42:21 +0200239}
240
241/*
242 * vmsplice() pipe to io_u buffer
243 */
244static int vmsplice_io_u_out(struct thread_data *td, struct io_u *io_u,
245 unsigned int len)
246{
247 struct netio_data *nd = td->io_ops->data;
Jens Axboe9cce02e2007-06-22 15:42:21 +0200248
Jens Axboecd963e12007-06-24 21:41:46 +0200249 return vmsplice_io_u(io_u, nd->pipes[0], len);
Jens Axboe9cce02e2007-06-22 15:42:21 +0200250}
251
252/*
253 * vmsplice() io_u to pipe
254 */
255static int vmsplice_io_u_in(struct thread_data *td, struct io_u *io_u)
256{
257 struct netio_data *nd = td->io_ops->data;
Jens Axboe9cce02e2007-06-22 15:42:21 +0200258
Jens Axboecd963e12007-06-24 21:41:46 +0200259 return vmsplice_io_u(io_u, nd->pipes[1], io_u->xfer_buflen);
Jens Axboe9cce02e2007-06-22 15:42:21 +0200260}
261
Jens Axboecd963e12007-06-24 21:41:46 +0200262/*
263 * splice receive - transfer socket data into a pipe using splice, then map
264 * that pipe data into the io_u using vmsplice.
265 */
Jens Axboe9cce02e2007-06-22 15:42:21 +0200266static int fio_netio_splice_in(struct thread_data *td, struct io_u *io_u)
267{
268 int ret;
269
270 ret = splice_in(td, io_u);
Jens Axboecd963e12007-06-24 21:41:46 +0200271 if (ret > 0)
272 return vmsplice_io_u_out(td, io_u, ret);
Jens Axboe9cce02e2007-06-22 15:42:21 +0200273
Jens Axboecd963e12007-06-24 21:41:46 +0200274 return ret;
Jens Axboe9cce02e2007-06-22 15:42:21 +0200275}
276
Jens Axboecd963e12007-06-24 21:41:46 +0200277/*
278 * splice transmit - map data from the io_u into a pipe by using vmsplice,
279 * then transfer that pipe to a socket using splice.
280 */
Jens Axboe9cce02e2007-06-22 15:42:21 +0200281static int fio_netio_splice_out(struct thread_data *td, struct io_u *io_u)
282{
283 int ret;
284
285 ret = vmsplice_io_u_in(td, io_u);
Jens Axboecd963e12007-06-24 21:41:46 +0200286 if (ret > 0)
287 return splice_out(td, io_u, ret);
Jens Axboe9cce02e2007-06-22 15:42:21 +0200288
Jens Axboecd963e12007-06-24 21:41:46 +0200289 return ret;
Jens Axboe9cce02e2007-06-22 15:42:21 +0200290}
Jens Axboe5921e802008-05-30 15:02:38 +0200291#else
292static int fio_netio_splice_in(struct thread_data *td, struct io_u *io_u)
293{
Jens Axboeaf8771b2008-05-30 22:58:28 +0200294 errno = EOPNOTSUPP;
Jens Axboe5921e802008-05-30 15:02:38 +0200295 return -1;
296}
297
298static int fio_netio_splice_out(struct thread_data *td, struct io_u *io_u)
299{
Jens Axboeaf8771b2008-05-30 22:58:28 +0200300 errno = EOPNOTSUPP;
Jens Axboe5921e802008-05-30 15:02:38 +0200301 return -1;
302}
303#endif
Jens Axboe9cce02e2007-06-22 15:42:21 +0200304
305static int fio_netio_send(struct thread_data *td, struct io_u *io_u)
306{
Jens Axboe414c2a32009-01-16 13:21:15 +0100307 struct netio_data *nd = td->io_ops->data;
Steven Langde890a12011-11-09 14:03:34 +0100308 struct netio_options *o = td->eo;
Jens Axboe6f73a7f2012-11-30 09:59:20 +0100309 int ret, flags = 0;
Jens Axboe371d4562009-01-19 10:17:06 +0100310
Jens Axboe664fb3b2009-01-19 13:26:36 +0100311 do {
Steven Langde890a12011-11-09 14:03:34 +0100312 if (o->proto == FIO_TYPE_UDP) {
Jens Axboe62b38922009-05-11 10:37:33 +0200313 struct sockaddr *to = (struct sockaddr *) &nd->addr;
314
Jens Axboe664fb3b2009-01-19 13:26:36 +0100315 ret = sendto(io_u->file->fd, io_u->xfer_buf,
Jens Axboe62b38922009-05-11 10:37:33 +0200316 io_u->xfer_buflen, flags, to,
317 sizeof(*to));
Jens Axboe664fb3b2009-01-19 13:26:36 +0100318 } else {
319 /*
320 * if we are going to write more, set MSG_MORE
321 */
Jens Axboe5921e802008-05-30 15:02:38 +0200322#ifdef MSG_MORE
Jens Axboe6f73a7f2012-11-30 09:59:20 +0100323 if ((td->this_io_bytes[DDIR_WRITE] + io_u->xfer_buflen <
324 td->o.size) && !o->pingpong)
Jens Axboe664fb3b2009-01-19 13:26:36 +0100325 flags |= MSG_MORE;
Jens Axboe5921e802008-05-30 15:02:38 +0200326#endif
Jens Axboe664fb3b2009-01-19 13:26:36 +0100327 ret = send(io_u->file->fd, io_u->xfer_buf,
328 io_u->xfer_buflen, flags);
329 }
330 if (ret > 0)
331 break;
Jens Axboe9cce02e2007-06-22 15:42:21 +0200332
Jens Axboe664fb3b2009-01-19 13:26:36 +0100333 ret = poll_wait(td, io_u->file->fd, POLLOUT);
334 if (ret <= 0)
335 break;
Jens Axboe664fb3b2009-01-19 13:26:36 +0100336 } while (1);
337
338 return ret;
339}
340
341static int is_udp_close(struct io_u *io_u, int len)
342{
343 struct udp_close_msg *msg;
344
345 if (len != sizeof(struct udp_close_msg))
346 return 0;
347
348 msg = io_u->xfer_buf;
Jens Axboeb96d2432012-11-30 08:27:46 +0100349 if (ntohl(msg->magic) != FIO_LINK_OPEN_CLOSE_MAGIC)
Jens Axboe664fb3b2009-01-19 13:26:36 +0100350 return 0;
351 if (ntohl(msg->cmd) != FIO_LINK_CLOSE)
352 return 0;
353
354 return 1;
Jens Axboe9cce02e2007-06-22 15:42:21 +0200355}
356
Jens Axboe414c2a32009-01-16 13:21:15 +0100357static int fio_netio_recv(struct thread_data *td, struct io_u *io_u)
Jens Axboe9cce02e2007-06-22 15:42:21 +0200358{
Jens Axboe414c2a32009-01-16 13:21:15 +0100359 struct netio_data *nd = td->io_ops->data;
Steven Langde890a12011-11-09 14:03:34 +0100360 struct netio_options *o = td->eo;
Jens Axboe6f73a7f2012-11-30 09:59:20 +0100361 int ret, flags = 0;
Jens Axboe371d4562009-01-19 10:17:06 +0100362
Jens Axboe664fb3b2009-01-19 13:26:36 +0100363 do {
Steven Langde890a12011-11-09 14:03:34 +0100364 if (o->proto == FIO_TYPE_UDP) {
Jens Axboe67bf9822013-01-10 11:23:19 +0100365 socklen_t len = sizeof(nd->addr);
Jens Axboe62b38922009-05-11 10:37:33 +0200366 struct sockaddr *from = (struct sockaddr *) &nd->addr;
Jens Axboe9cce02e2007-06-22 15:42:21 +0200367
Jens Axboe664fb3b2009-01-19 13:26:36 +0100368 ret = recvfrom(io_u->file->fd, io_u->xfer_buf,
Jens Axboe62b38922009-05-11 10:37:33 +0200369 io_u->xfer_buflen, flags, from, &len);
Jens Axboe664fb3b2009-01-19 13:26:36 +0100370 if (is_udp_close(io_u, ret)) {
371 td->done = 1;
372 return 0;
373 }
374 } else {
375 ret = recv(io_u->file->fd, io_u->xfer_buf,
376 io_u->xfer_buflen, flags);
377 }
378 if (ret > 0)
379 break;
Jens Axboe7d988f62012-11-29 19:57:35 +0100380 else if (!ret && (flags & MSG_WAITALL))
381 break;
Jens Axboe414c2a32009-01-16 13:21:15 +0100382
Jens Axboe664fb3b2009-01-19 13:26:36 +0100383 ret = poll_wait(td, io_u->file->fd, POLLIN);
384 if (ret <= 0)
385 break;
Jens Axboe664fb3b2009-01-19 13:26:36 +0100386 flags |= MSG_WAITALL;
387 } while (1);
388
389 return ret;
Jens Axboe9cce02e2007-06-22 15:42:21 +0200390}
391
Jens Axboe6f73a7f2012-11-30 09:59:20 +0100392static int __fio_netio_queue(struct thread_data *td, struct io_u *io_u,
393 enum fio_ddir ddir)
Jens Axboeed92ac02007-02-06 14:43:52 +0100394{
Jens Axboe9cce02e2007-06-22 15:42:21 +0200395 struct netio_data *nd = td->io_ops->data;
Steven Langde890a12011-11-09 14:03:34 +0100396 struct netio_options *o = td->eo;
Jens Axboe9cce02e2007-06-22 15:42:21 +0200397 int ret;
Jens Axboeed92ac02007-02-06 14:43:52 +0100398
Jens Axboe6f73a7f2012-11-30 09:59:20 +0100399 if (ddir == DDIR_WRITE) {
Steven Langde890a12011-11-09 14:03:34 +0100400 if (!nd->use_splice || o->proto == FIO_TYPE_UDP ||
401 o->proto == FIO_TYPE_UNIX)
Jens Axboe9cce02e2007-06-22 15:42:21 +0200402 ret = fio_netio_send(td, io_u);
Jens Axboe9cce02e2007-06-22 15:42:21 +0200403 else
Jens Axboe414c2a32009-01-16 13:21:15 +0100404 ret = fio_netio_splice_out(td, io_u);
Jens Axboe6f73a7f2012-11-30 09:59:20 +0100405 } else if (ddir == DDIR_READ) {
Steven Langde890a12011-11-09 14:03:34 +0100406 if (!nd->use_splice || o->proto == FIO_TYPE_UDP ||
407 o->proto == FIO_TYPE_UNIX)
Jens Axboe414c2a32009-01-16 13:21:15 +0100408 ret = fio_netio_recv(td, io_u);
409 else
410 ret = fio_netio_splice_in(td, io_u);
Jens Axboed4f12dd2007-02-08 12:59:02 +0100411 } else
Jens Axboe7a6499d2007-02-07 09:35:29 +0100412 ret = 0; /* must be a SYNC */
Jens Axboeed92ac02007-02-06 14:43:52 +0100413
Jens Axboecec6b552007-02-06 20:15:38 +0100414 if (ret != (int) io_u->xfer_buflen) {
Jens Axboe22819ec2007-02-18 07:47:14 +0100415 if (ret >= 0) {
Jens Axboecec6b552007-02-06 20:15:38 +0100416 io_u->resid = io_u->xfer_buflen - ret;
417 io_u->error = 0;
Jens Axboe36167d82007-02-18 05:41:31 +0100418 return FIO_Q_COMPLETED;
Jens Axboe414c2a32009-01-16 13:21:15 +0100419 } else {
420 int err = errno;
421
Jens Axboe6f73a7f2012-11-30 09:59:20 +0100422 if (ddir == DDIR_WRITE && err == EMSGSIZE)
Jens Axboe414c2a32009-01-16 13:21:15 +0100423 return FIO_Q_BUSY;
424
425 io_u->error = err;
426 }
Jens Axboeed92ac02007-02-06 14:43:52 +0100427 }
428
Jens Axboe36167d82007-02-18 05:41:31 +0100429 if (io_u->error)
Jens Axboee1161c32007-02-22 19:36:48 +0100430 td_verror(td, io_u->error, "xfer");
Jens Axboeed92ac02007-02-06 14:43:52 +0100431
Jens Axboe36167d82007-02-18 05:41:31 +0100432 return FIO_Q_COMPLETED;
Jens Axboeed92ac02007-02-06 14:43:52 +0100433}
434
Jens Axboe6f73a7f2012-11-30 09:59:20 +0100435static int fio_netio_queue(struct thread_data *td, struct io_u *io_u)
436{
437 struct netio_options *o = td->eo;
438 int ret;
439
440 fio_ro_check(td, io_u);
441
442 ret = __fio_netio_queue(td, io_u, io_u->ddir);
443 if (!o->pingpong || ret != FIO_Q_COMPLETED)
444 return ret;
445
446 /*
447 * For ping-pong mode, receive or send reply as needed
448 */
449 if (td_read(td) && io_u->ddir == DDIR_READ)
450 ret = __fio_netio_queue(td, io_u, DDIR_WRITE);
451 else if (td_write(td) && io_u->ddir == DDIR_WRITE)
452 ret = __fio_netio_queue(td, io_u, DDIR_READ);
453
454 return ret;
455}
456
Jens Axboeb5af8292007-03-08 12:43:13 +0100457static int fio_netio_connect(struct thread_data *td, struct fio_file *f)
Jens Axboeed92ac02007-02-06 14:43:52 +0100458{
Jens Axboeb5af8292007-03-08 12:43:13 +0100459 struct netio_data *nd = td->io_ops->data;
Steven Langde890a12011-11-09 14:03:34 +0100460 struct netio_options *o = td->eo;
Steven Noonan70a78782012-11-28 14:52:36 -0800461 int type, domain, optval;
Jens Axboeed92ac02007-02-06 14:43:52 +0100462
Steven Langde890a12011-11-09 14:03:34 +0100463 if (o->proto == FIO_TYPE_TCP) {
Jens Axboe0fd666b2011-10-06 20:08:53 +0200464 domain = AF_INET;
Jens Axboe414c2a32009-01-16 13:21:15 +0100465 type = SOCK_STREAM;
Steven Langde890a12011-11-09 14:03:34 +0100466 } else if (o->proto == FIO_TYPE_UDP) {
Jens Axboe0fd666b2011-10-06 20:08:53 +0200467 domain = AF_INET;
Jens Axboe414c2a32009-01-16 13:21:15 +0100468 type = SOCK_DGRAM;
Steven Langde890a12011-11-09 14:03:34 +0100469 } else if (o->proto == FIO_TYPE_UNIX) {
Jens Axboe0fd666b2011-10-06 20:08:53 +0200470 domain = AF_UNIX;
471 type = SOCK_STREAM;
472 } else {
Steven Langde890a12011-11-09 14:03:34 +0100473 log_err("fio: bad network type %d\n", o->proto);
Jens Axboe0fd666b2011-10-06 20:08:53 +0200474 f->fd = -1;
475 return 1;
476 }
Jens Axboe414c2a32009-01-16 13:21:15 +0100477
Jens Axboe0fd666b2011-10-06 20:08:53 +0200478 f->fd = socket(domain, type, 0);
Jens Axboeb5af8292007-03-08 12:43:13 +0100479 if (f->fd < 0) {
480 td_verror(td, errno, "socket");
481 return 1;
Jens Axboeed92ac02007-02-06 14:43:52 +0100482 }
483
Jens Axboe1eafa372013-01-31 10:19:51 +0100484#ifdef CONFIG_TCP_NODELAY
Steven Noonan70a78782012-11-28 14:52:36 -0800485 if (o->nodelay && o->proto == FIO_TYPE_TCP) {
486 optval = 1;
Jens Axboe26e594a2013-01-30 21:52:37 +0100487 if (setsockopt(f->fd, IPPROTO_TCP, TCP_NODELAY, (void *) &optval, sizeof(int)) < 0) {
Steven Noonan70a78782012-11-28 14:52:36 -0800488 log_err("fio: cannot set TCP_NODELAY option on socket (%s), disable with 'nodelay=0'\n", strerror(errno));
489 return 1;
490 }
491 }
Jens Axboe1eafa372013-01-31 10:19:51 +0100492#endif
Steven Noonan70a78782012-11-28 14:52:36 -0800493
Steven Langde890a12011-11-09 14:03:34 +0100494 if (o->proto == FIO_TYPE_UDP)
Jens Axboe414c2a32009-01-16 13:21:15 +0100495 return 0;
Steven Langde890a12011-11-09 14:03:34 +0100496 else if (o->proto == FIO_TYPE_TCP) {
Jens Axboe67bf9822013-01-10 11:23:19 +0100497 socklen_t len = sizeof(nd->addr);
Jens Axboe414c2a32009-01-16 13:21:15 +0100498
Jens Axboe0fd666b2011-10-06 20:08:53 +0200499 if (connect(f->fd, (struct sockaddr *) &nd->addr, len) < 0) {
500 td_verror(td, errno, "connect");
Jens Axboeb94cba42011-10-06 21:27:10 +0200501 close(f->fd);
Jens Axboe0fd666b2011-10-06 20:08:53 +0200502 return 1;
503 }
504 } else {
505 struct sockaddr_un *addr = &nd->addr_un;
Jens Axboe67bf9822013-01-10 11:23:19 +0100506 socklen_t len;
Jens Axboe0fd666b2011-10-06 20:08:53 +0200507
508 len = sizeof(addr->sun_family) + strlen(addr->sun_path) + 1;
509
510 if (connect(f->fd, (struct sockaddr *) addr, len) < 0) {
511 td_verror(td, errno, "connect");
Jens Axboeb94cba42011-10-06 21:27:10 +0200512 close(f->fd);
Jens Axboe0fd666b2011-10-06 20:08:53 +0200513 return 1;
514 }
Jens Axboeed92ac02007-02-06 14:43:52 +0100515 }
516
517 return 0;
Jens Axboeed92ac02007-02-06 14:43:52 +0100518}
519
Jens Axboeb5af8292007-03-08 12:43:13 +0100520static int fio_netio_accept(struct thread_data *td, struct fio_file *f)
Jens Axboe5fdd1242007-02-11 04:00:37 +0100521{
Jens Axboeb5af8292007-03-08 12:43:13 +0100522 struct netio_data *nd = td->io_ops->data;
Steven Langde890a12011-11-09 14:03:34 +0100523 struct netio_options *o = td->eo;
Jens Axboe67bf9822013-01-10 11:23:19 +0100524 socklen_t socklen = sizeof(nd->addr);
Steven Noonan70a78782012-11-28 14:52:36 -0800525 int state, optval;
Jens Axboe5fdd1242007-02-11 04:00:37 +0100526
Steven Langde890a12011-11-09 14:03:34 +0100527 if (o->proto == FIO_TYPE_UDP) {
Jens Axboe414c2a32009-01-16 13:21:15 +0100528 f->fd = nd->listenfd;
529 return 0;
530 }
531
Jens Axboe859088d2012-11-29 20:02:50 +0100532 state = td->runstate;
533 td_set_runstate(td, TD_SETTING_UP);
534
Jens Axboe6d861442007-03-15 09:22:23 +0100535 log_info("fio: waiting for connection\n");
Jens Axboe5fdd1242007-02-11 04:00:37 +0100536
Jens Axboe371d4562009-01-19 10:17:06 +0100537 if (poll_wait(td, nd->listenfd, POLLIN) < 0)
Jens Axboe859088d2012-11-29 20:02:50 +0100538 goto err;
Jens Axboe5fdd1242007-02-11 04:00:37 +0100539
Jens Axboe371d4562009-01-19 10:17:06 +0100540 f->fd = accept(nd->listenfd, (struct sockaddr *) &nd->addr, &socklen);
541 if (f->fd < 0) {
542 td_verror(td, errno, "accept");
Jens Axboe859088d2012-11-29 20:02:50 +0100543 goto err;
Jens Axboe5fdd1242007-02-11 04:00:37 +0100544 }
545
Jens Axboe1eafa372013-01-31 10:19:51 +0100546#ifdef CONFIG_TCP_NODELAY
Steven Noonan70a78782012-11-28 14:52:36 -0800547 if (o->nodelay && o->proto == FIO_TYPE_TCP) {
548 optval = 1;
Jens Axboe26e594a2013-01-30 21:52:37 +0100549 if (setsockopt(f->fd, IPPROTO_TCP, TCP_NODELAY, (void *) &optval, sizeof(int)) < 0) {
Steven Noonan70a78782012-11-28 14:52:36 -0800550 log_err("fio: cannot set TCP_NODELAY option on socket (%s), disable with 'nodelay=0'\n", strerror(errno));
551 return 1;
552 }
553 }
Jens Axboe1eafa372013-01-31 10:19:51 +0100554#endif
Steven Noonan70a78782012-11-28 14:52:36 -0800555
Jens Axboe0cae16f2012-11-30 16:22:31 +0100556 reset_all_stats(td);
Jens Axboe859088d2012-11-29 20:02:50 +0100557 td_set_runstate(td, state);
Jens Axboe5fdd1242007-02-11 04:00:37 +0100558 return 0;
Jens Axboe859088d2012-11-29 20:02:50 +0100559err:
560 td_set_runstate(td, state);
561 return 1;
Jens Axboe5fdd1242007-02-11 04:00:37 +0100562}
563
Jens Axboe664fb3b2009-01-19 13:26:36 +0100564static void fio_netio_udp_close(struct thread_data *td, struct fio_file *f)
565{
566 struct netio_data *nd = td->io_ops->data;
567 struct udp_close_msg msg;
Jens Axboe62b38922009-05-11 10:37:33 +0200568 struct sockaddr *to = (struct sockaddr *) &nd->addr;
Jens Axboe664fb3b2009-01-19 13:26:36 +0100569 int ret;
570
Jens Axboeb96d2432012-11-30 08:27:46 +0100571 msg.magic = htonl(FIO_LINK_OPEN_CLOSE_MAGIC);
Jens Axboe664fb3b2009-01-19 13:26:36 +0100572 msg.cmd = htonl(FIO_LINK_CLOSE);
573
Jens Axboe1f819912013-01-23 17:21:41 -0700574 ret = sendto(f->fd, (void *) &msg, sizeof(msg), MSG_WAITALL, to,
Jens Axboe664fb3b2009-01-19 13:26:36 +0100575 sizeof(nd->addr));
576 if (ret < 0)
577 td_verror(td, errno, "sendto udp link close");
578}
579
580static int fio_netio_close_file(struct thread_data *td, struct fio_file *f)
581{
Steven Langde890a12011-11-09 14:03:34 +0100582 struct netio_options *o = td->eo;
Jens Axboe664fb3b2009-01-19 13:26:36 +0100583
584 /*
585 * If this is an UDP connection, notify the receiver that we are
586 * closing down the link
587 */
Steven Langde890a12011-11-09 14:03:34 +0100588 if (o->proto == FIO_TYPE_UDP)
Jens Axboe664fb3b2009-01-19 13:26:36 +0100589 fio_netio_udp_close(td, f);
590
591 return generic_close_file(td, f);
592}
593
Jens Axboeb96d2432012-11-30 08:27:46 +0100594static int fio_netio_udp_recv_open(struct thread_data *td, struct fio_file *f)
595{
596 struct netio_data *nd = td->io_ops->data;
597 struct udp_close_msg msg;
598 struct sockaddr *to = (struct sockaddr *) &nd->addr;
Jens Axboe67bf9822013-01-10 11:23:19 +0100599 socklen_t len = sizeof(nd->addr);
Jens Axboeb96d2432012-11-30 08:27:46 +0100600 int ret;
601
Jens Axboe1f819912013-01-23 17:21:41 -0700602 ret = recvfrom(f->fd, (void *) &msg, sizeof(msg), MSG_WAITALL, to, &len);
Jens Axboeb96d2432012-11-30 08:27:46 +0100603 if (ret < 0) {
604 td_verror(td, errno, "sendto udp link open");
605 return ret;
606 }
607
608 if (ntohl(msg.magic) != FIO_LINK_OPEN_CLOSE_MAGIC ||
609 ntohl(msg.cmd) != FIO_LINK_OPEN) {
610 log_err("fio: bad udp open magic %x/%x\n", ntohl(msg.magic),
611 ntohl(msg.cmd));
612 return -1;
613 }
614
615 return 0;
616}
617
618static int fio_netio_udp_send_open(struct thread_data *td, struct fio_file *f)
619{
620 struct netio_data *nd = td->io_ops->data;
621 struct udp_close_msg msg;
622 struct sockaddr *to = (struct sockaddr *) &nd->addr;
623 int ret;
624
625 msg.magic = htonl(FIO_LINK_OPEN_CLOSE_MAGIC);
626 msg.cmd = htonl(FIO_LINK_OPEN);
627
Jens Axboe1f819912013-01-23 17:21:41 -0700628 ret = sendto(f->fd, (void *) &msg, sizeof(msg), MSG_WAITALL, to,
Jens Axboeb96d2432012-11-30 08:27:46 +0100629 sizeof(nd->addr));
630 if (ret < 0) {
631 td_verror(td, errno, "sendto udp link open");
632 return ret;
633 }
634
635 return 0;
636}
637
638static int fio_netio_open_file(struct thread_data *td, struct fio_file *f)
639{
640 int ret;
641 struct netio_options *o = td->eo;
642
643 if (o->listen)
644 ret = fio_netio_accept(td, f);
645 else
646 ret = fio_netio_connect(td, f);
647
648 if (ret) {
649 f->fd = -1;
650 return ret;
651 }
652
653 if (o->proto == FIO_TYPE_UDP) {
654 if (td_write(td))
655 ret = fio_netio_udp_send_open(td, f);
656 else {
657 int state;
658
659 state = td->runstate;
660 td_set_runstate(td, TD_SETTING_UP);
661 ret = fio_netio_udp_recv_open(td, f);
662 td_set_runstate(td, state);
663 }
664 }
665
666 if (ret)
667 fio_netio_close_file(td, f);
668
669 return ret;
670}
671
Jens Axboe0fd666b2011-10-06 20:08:53 +0200672static int fio_netio_setup_connect_inet(struct thread_data *td,
673 const char *host, unsigned short port)
Jens Axboeb5af8292007-03-08 12:43:13 +0100674{
675 struct netio_data *nd = td->io_ops->data;
676
Jens Axboe166dce42012-11-29 14:35:33 +0100677 if (!host) {
678 log_err("fio: connect with no host to connect to.\n");
679 if (td_read(td))
680 log_err("fio: did you forget to set 'listen'?\n");
681
682 td_verror(td, EINVAL, "no hostname= set");
683 return 1;
684 }
685
Jens Axboeb5af8292007-03-08 12:43:13 +0100686 nd->addr.sin_family = AF_INET;
687 nd->addr.sin_port = htons(port);
688
689 if (inet_aton(host, &nd->addr.sin_addr) != 1) {
690 struct hostent *hent;
691
692 hent = gethostbyname(host);
693 if (!hent) {
694 td_verror(td, errno, "gethostbyname");
695 return 1;
696 }
697
698 memcpy(&nd->addr.sin_addr, hent->h_addr, 4);
699 }
700
701 return 0;
702}
703
Jens Axboe0fd666b2011-10-06 20:08:53 +0200704static int fio_netio_setup_connect_unix(struct thread_data *td,
705 const char *path)
706{
707 struct netio_data *nd = td->io_ops->data;
708 struct sockaddr_un *soun = &nd->addr_un;
709
710 soun->sun_family = AF_UNIX;
711 strcpy(soun->sun_path, path);
712 return 0;
713}
714
Steven Langde890a12011-11-09 14:03:34 +0100715static int fio_netio_setup_connect(struct thread_data *td)
Jens Axboe0fd666b2011-10-06 20:08:53 +0200716{
Steven Langde890a12011-11-09 14:03:34 +0100717 struct netio_options *o = td->eo;
Jens Axboe0fd666b2011-10-06 20:08:53 +0200718
Steven Langde890a12011-11-09 14:03:34 +0100719 if (o->proto == FIO_TYPE_UDP || o->proto == FIO_TYPE_TCP)
720 return fio_netio_setup_connect_inet(td, td->o.filename,o->port);
Jens Axboe0fd666b2011-10-06 20:08:53 +0200721 else
Steven Langde890a12011-11-09 14:03:34 +0100722 return fio_netio_setup_connect_unix(td, td->o.filename);
Jens Axboe0fd666b2011-10-06 20:08:53 +0200723}
724
725static int fio_netio_setup_listen_unix(struct thread_data *td, const char *path)
726{
727 struct netio_data *nd = td->io_ops->data;
728 struct sockaddr_un *addr = &nd->addr_un;
729 mode_t mode;
730 int len, fd;
731
732 fd = socket(AF_UNIX, SOCK_STREAM, 0);
733 if (fd < 0) {
734 log_err("fio: socket: %s\n", strerror(errno));
735 return -1;
736 }
737
738 mode = umask(000);
739
740 memset(addr, 0, sizeof(*addr));
741 addr->sun_family = AF_UNIX;
742 strcpy(addr->sun_path, path);
743 unlink(path);
744
745 len = sizeof(addr->sun_family) + strlen(path) + 1;
746
747 if (bind(fd, (struct sockaddr *) addr, len) < 0) {
748 log_err("fio: bind: %s\n", strerror(errno));
Jens Axboeb94cba42011-10-06 21:27:10 +0200749 close(fd);
Jens Axboe0fd666b2011-10-06 20:08:53 +0200750 return -1;
751 }
752
753 umask(mode);
754 nd->listenfd = fd;
755 return 0;
756}
757
758static int fio_netio_setup_listen_inet(struct thread_data *td, short port)
Jens Axboeb5af8292007-03-08 12:43:13 +0100759{
760 struct netio_data *nd = td->io_ops->data;
Steven Langde890a12011-11-09 14:03:34 +0100761 struct netio_options *o = td->eo;
Jens Axboe414c2a32009-01-16 13:21:15 +0100762 int fd, opt, type;
Jens Axboeed92ac02007-02-06 14:43:52 +0100763
Steven Langde890a12011-11-09 14:03:34 +0100764 if (o->proto == FIO_TYPE_TCP)
Jens Axboe414c2a32009-01-16 13:21:15 +0100765 type = SOCK_STREAM;
766 else
767 type = SOCK_DGRAM;
768
Jens Axboe0fd666b2011-10-06 20:08:53 +0200769 fd = socket(AF_INET, type, 0);
Jens Axboeed92ac02007-02-06 14:43:52 +0100770 if (fd < 0) {
Jens Axboee1161c32007-02-22 19:36:48 +0100771 td_verror(td, errno, "socket");
Jens Axboeed92ac02007-02-06 14:43:52 +0100772 return 1;
773 }
774
775 opt = 1;
Jens Axboe26e594a2013-01-30 21:52:37 +0100776 if (setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, (void *) &opt, sizeof(opt)) < 0) {
Jens Axboee1161c32007-02-22 19:36:48 +0100777 td_verror(td, errno, "setsockopt");
Jens Axboeed92ac02007-02-06 14:43:52 +0100778 return 1;
779 }
Jens Axboe6bedbfa2007-02-07 09:54:40 +0100780#ifdef SO_REUSEPORT
Jens Axboe26e594a2013-01-30 21:52:37 +0100781 if (setsockopt(fd, SOL_SOCKET, SO_REUSEPORT, (void *) &opt, sizeof(opt)) < 0) {
Jens Axboee1161c32007-02-22 19:36:48 +0100782 td_verror(td, errno, "setsockopt");
Jens Axboe6bedbfa2007-02-07 09:54:40 +0100783 return 1;
784 }
785#endif
Jens Axboeed92ac02007-02-06 14:43:52 +0100786
Jens Axboeb5af8292007-03-08 12:43:13 +0100787 nd->addr.sin_family = AF_INET;
788 nd->addr.sin_addr.s_addr = htonl(INADDR_ANY);
789 nd->addr.sin_port = htons(port);
Jens Axboeed92ac02007-02-06 14:43:52 +0100790
Jens Axboeb5af8292007-03-08 12:43:13 +0100791 if (bind(fd, (struct sockaddr *) &nd->addr, sizeof(nd->addr)) < 0) {
Jens Axboee1161c32007-02-22 19:36:48 +0100792 td_verror(td, errno, "bind");
Jens Axboeed92ac02007-02-06 14:43:52 +0100793 return 1;
794 }
Jens Axboe0fd666b2011-10-06 20:08:53 +0200795
796 nd->listenfd = fd;
797 return 0;
798}
799
Steven Langde890a12011-11-09 14:03:34 +0100800static int fio_netio_setup_listen(struct thread_data *td)
Jens Axboe0fd666b2011-10-06 20:08:53 +0200801{
802 struct netio_data *nd = td->io_ops->data;
Steven Langde890a12011-11-09 14:03:34 +0100803 struct netio_options *o = td->eo;
Jens Axboe0fd666b2011-10-06 20:08:53 +0200804 int ret;
805
Steven Langde890a12011-11-09 14:03:34 +0100806 if (o->proto == FIO_TYPE_UDP || o->proto == FIO_TYPE_TCP)
807 ret = fio_netio_setup_listen_inet(td, o->port);
Jens Axboe0fd666b2011-10-06 20:08:53 +0200808 else
Steven Langde890a12011-11-09 14:03:34 +0100809 ret = fio_netio_setup_listen_unix(td, td->o.filename);
Jens Axboe0fd666b2011-10-06 20:08:53 +0200810
811 if (ret)
812 return ret;
Steven Langde890a12011-11-09 14:03:34 +0100813 if (o->proto == FIO_TYPE_UDP)
Jens Axboe0fd666b2011-10-06 20:08:53 +0200814 return 0;
815
816 if (listen(nd->listenfd, 10) < 0) {
Jens Axboee1161c32007-02-22 19:36:48 +0100817 td_verror(td, errno, "listen");
Jens Axboe0fd666b2011-10-06 20:08:53 +0200818 nd->listenfd = -1;
Jens Axboeed92ac02007-02-06 14:43:52 +0100819 return 1;
820 }
821
Jens Axboeb5af8292007-03-08 12:43:13 +0100822 return 0;
Jens Axboeed92ac02007-02-06 14:43:52 +0100823}
824
Jens Axboe9bec88e2007-03-02 08:55:48 +0100825static int fio_netio_init(struct thread_data *td)
Jens Axboeed92ac02007-02-06 14:43:52 +0100826{
Steven Langde890a12011-11-09 14:03:34 +0100827 struct netio_options *o = td->eo;
Jens Axboeaf52b342007-03-13 10:07:47 +0100828 int ret;
Jens Axboeed92ac02007-02-06 14:43:52 +0100829
Bruce Cran3f457be2012-10-10 13:37:41 +0100830#ifdef WIN32
831 WSADATA wsd;
832 WSAStartup(MAKEWORD(2,2), &wsd);
833#endif
834
Jens Axboe16d55aa2007-05-22 09:21:37 +0200835 if (td_random(td)) {
836 log_err("fio: network IO can't be random\n");
837 return 1;
838 }
Jens Axboeed92ac02007-02-06 14:43:52 +0100839
Steven Langde890a12011-11-09 14:03:34 +0100840 if (o->proto == FIO_TYPE_UNIX && o->port) {
841 log_err("fio: network IO port not valid with unix socket\n");
842 return 1;
843 } else if (o->proto != FIO_TYPE_UNIX && !o->port) {
844 log_err("fio: network IO requires port for tcp or udp\n");
845 return 1;
Jens Axboe414c2a32009-01-16 13:21:15 +0100846 }
Jens Axboe0fd666b2011-10-06 20:08:53 +0200847
Steven Langde890a12011-11-09 14:03:34 +0100848 if (o->proto != FIO_TYPE_TCP) {
849 if (o->listen) {
Jens Axboe9b986062011-12-19 08:57:18 +0100850 log_err("fio: listen only valid for TCP proto IO\n");
851 return 1;
Steven Langde890a12011-11-09 14:03:34 +0100852 }
853 if (td_rw(td)) {
Jens Axboe9b986062011-12-19 08:57:18 +0100854 log_err("fio: datagram network connections must be"
Steven Langde890a12011-11-09 14:03:34 +0100855 " read OR write\n");
Jens Axboe9b986062011-12-19 08:57:18 +0100856 return 1;
857 }
858 if (o->proto == FIO_TYPE_UNIX && !td->o.filename) {
859 log_err("fio: UNIX sockets need host/filename\n");
860 return 1;
Steven Langde890a12011-11-09 14:03:34 +0100861 }
862 o->listen = td_read(td);
863 }
864
865 if (o->proto != FIO_TYPE_UNIX && o->listen && td->o.filename) {
866 log_err("fio: hostname not valid for inbound network IO\n");
867 return 1;
868 }
869
870 if (o->listen)
871 ret = fio_netio_setup_listen(td);
Jens Axboe0fd666b2011-10-06 20:08:53 +0200872 else
Steven Langde890a12011-11-09 14:03:34 +0100873 ret = fio_netio_setup_connect(td);
Jens Axboeed92ac02007-02-06 14:43:52 +0100874
Jens Axboe7bb48f82007-03-27 15:30:28 +0200875 return ret;
Jens Axboeed92ac02007-02-06 14:43:52 +0100876}
877
Jens Axboeb5af8292007-03-08 12:43:13 +0100878static void fio_netio_cleanup(struct thread_data *td)
Jens Axboe9bec88e2007-03-02 08:55:48 +0100879{
Jens Axboeb5af8292007-03-08 12:43:13 +0100880 struct netio_data *nd = td->io_ops->data;
881
882 if (nd) {
Jens Axboe64b24cd2007-06-24 21:28:39 +0200883 if (nd->listenfd != -1)
884 close(nd->listenfd);
885 if (nd->pipes[0] != -1)
886 close(nd->pipes[0]);
887 if (nd->pipes[1] != -1)
888 close(nd->pipes[1]);
889
Jens Axboeb5af8292007-03-08 12:43:13 +0100890 free(nd);
Jens Axboeb5af8292007-03-08 12:43:13 +0100891 }
892}
893
894static int fio_netio_setup(struct thread_data *td)
895{
Jens Axboe7bb48f82007-03-27 15:30:28 +0200896 struct netio_data *nd;
Jens Axboeb5af8292007-03-08 12:43:13 +0100897
Steven Langde890a12011-11-09 14:03:34 +0100898 if (!td->files_index) {
899 add_file(td, td->o.filename ?: "net");
900 td->o.nr_files = td->o.nr_files ?: 1;
901 }
902
Jens Axboe7bb48f82007-03-27 15:30:28 +0200903 if (!td->io_ops->data) {
904 nd = malloc(sizeof(*nd));;
905
906 memset(nd, 0, sizeof(*nd));
907 nd->listenfd = -1;
Jens Axboe64b24cd2007-06-24 21:28:39 +0200908 nd->pipes[0] = nd->pipes[1] = -1;
Jens Axboe7bb48f82007-03-27 15:30:28 +0200909 td->io_ops->data = nd;
Jens Axboe7bb48f82007-03-27 15:30:28 +0200910 }
911
Jens Axboe9bec88e2007-03-02 08:55:48 +0100912 return 0;
913}
914
Jens Axboe36d80bc2012-11-30 21:46:06 +0100915static void fio_netio_terminate(struct thread_data *td)
916{
917 kill(td->pid, SIGUSR2);
918}
919
Jens Axboe67bf9822013-01-10 11:23:19 +0100920#ifdef CONFIG_LINUX_SPLICE
Jens Axboe9cce02e2007-06-22 15:42:21 +0200921static int fio_netio_setup_splice(struct thread_data *td)
922{
923 struct netio_data *nd;
924
925 fio_netio_setup(td);
926
927 nd = td->io_ops->data;
928 if (nd) {
929 if (pipe(nd->pipes) < 0)
930 return 1;
931
932 nd->use_splice = 1;
933 return 0;
934 }
935
936 return 1;
937}
938
Jens Axboe5921e802008-05-30 15:02:38 +0200939static struct ioengine_ops ioengine_splice = {
Steven Langde890a12011-11-09 14:03:34 +0100940 .name = "netsplice",
941 .version = FIO_IOOPS_VERSION,
942 .prep = fio_netio_prep,
943 .queue = fio_netio_queue,
944 .setup = fio_netio_setup_splice,
945 .init = fio_netio_init,
946 .cleanup = fio_netio_cleanup,
947 .open_file = fio_netio_open_file,
Jens Axboe36d80bc2012-11-30 21:46:06 +0100948 .close_file = fio_netio_close_file,
949 .terminate = fio_netio_terminate,
Steven Langde890a12011-11-09 14:03:34 +0100950 .options = options,
951 .option_struct_size = sizeof(struct netio_options),
952 .flags = FIO_SYNCIO | FIO_DISKLESSIO | FIO_UNIDIR |
Jens Axboe36d80bc2012-11-30 21:46:06 +0100953 FIO_PIPEIO,
Jens Axboe5921e802008-05-30 15:02:38 +0200954};
955#endif
956
Jens Axboe9cce02e2007-06-22 15:42:21 +0200957static struct ioengine_ops ioengine_rw = {
Steven Langde890a12011-11-09 14:03:34 +0100958 .name = "net",
959 .version = FIO_IOOPS_VERSION,
960 .prep = fio_netio_prep,
961 .queue = fio_netio_queue,
962 .setup = fio_netio_setup,
963 .init = fio_netio_init,
964 .cleanup = fio_netio_cleanup,
965 .open_file = fio_netio_open_file,
966 .close_file = fio_netio_close_file,
Jens Axboe36d80bc2012-11-30 21:46:06 +0100967 .terminate = fio_netio_terminate,
Steven Langde890a12011-11-09 14:03:34 +0100968 .options = options,
969 .option_struct_size = sizeof(struct netio_options),
970 .flags = FIO_SYNCIO | FIO_DISKLESSIO | FIO_UNIDIR |
Jens Axboe36d80bc2012-11-30 21:46:06 +0100971 FIO_PIPEIO,
Jens Axboeed92ac02007-02-06 14:43:52 +0100972};
973
Steven Langde890a12011-11-09 14:03:34 +0100974static int str_hostname_cb(void *data, const char *input)
975{
976 struct netio_options *o = data;
977
978 if (o->td->o.filename)
979 free(o->td->o.filename);
980 o->td->o.filename = strdup(input);
981 return 0;
982}
983
Jens Axboeed92ac02007-02-06 14:43:52 +0100984static void fio_init fio_netio_register(void)
985{
Jens Axboe9cce02e2007-06-22 15:42:21 +0200986 register_ioengine(&ioengine_rw);
Jens Axboe67bf9822013-01-10 11:23:19 +0100987#ifdef CONFIG_LINUX_SPLICE
Jens Axboe9cce02e2007-06-22 15:42:21 +0200988 register_ioengine(&ioengine_splice);
Jens Axboe5921e802008-05-30 15:02:38 +0200989#endif
Jens Axboeed92ac02007-02-06 14:43:52 +0100990}
991
992static void fio_exit fio_netio_unregister(void)
993{
Jens Axboe9cce02e2007-06-22 15:42:21 +0200994 unregister_ioengine(&ioengine_rw);
Jens Axboe67bf9822013-01-10 11:23:19 +0100995#ifdef CONFIG_LINUX_SPLICE
Jens Axboe9cce02e2007-06-22 15:42:21 +0200996 unregister_ioengine(&ioengine_splice);
Jens Axboe5921e802008-05-30 15:02:38 +0200997#endif
Jens Axboeed92ac02007-02-06 14:43:52 +0100998}