12 #include <netinet/in.h>
13 #include <arpa/inet.h>
19 #include "crc/crc16.h"
21 int fio_net_port = 8765;
25 static int server_fd = -1;
27 int fio_send_data(int sk, const void *p, unsigned int len)
29 assert(len <= sizeof(struct fio_net_cmd) + FIO_SERVER_MAX_PDU);
32 int ret = send(sk, p, len, 0);
42 else if (errno == EAGAIN || errno == EINTR)
44 } while (!exit_backend);
52 int fio_recv_data(int sk, void *p, unsigned int len)
55 int ret = recv(sk, p, len, MSG_WAITALL);
65 else if (errno == EAGAIN || errno == EINTR)
67 } while (!exit_backend);
75 static int verify_convert_cmd(struct fio_net_cmd *cmd)
79 cmd->cmd_crc16 = le16_to_cpu(cmd->cmd_crc16);
80 cmd->pdu_crc16 = le16_to_cpu(cmd->pdu_crc16);
82 crc = crc16(cmd, FIO_NET_CMD_CRC_SZ);
83 if (crc != cmd->cmd_crc16) {
84 log_err("fio: server bad crc on command (got %x, wanted %x)\n",
89 cmd->version = le16_to_cpu(cmd->version);
90 cmd->opcode = le16_to_cpu(cmd->opcode);
91 cmd->flags = le32_to_cpu(cmd->flags);
92 cmd->serial = le64_to_cpu(cmd->serial);
93 cmd->pdu_len = le32_to_cpu(cmd->pdu_len);
95 switch (cmd->version) {
99 log_err("fio: bad server cmd version %d\n", cmd->version);
103 if (cmd->pdu_len > FIO_SERVER_MAX_PDU) {
104 log_err("fio: command payload too large: %u\n", cmd->pdu_len);
112 * Read (and defragment, if necessary) incoming commands
114 struct fio_net_cmd *fio_net_recv_cmd(int sk, int block)
116 struct fio_net_cmd cmd, *cmdret = NULL;
117 size_t cmd_size = 0, pdu_offset = 0;
129 int timeo = block ? 100 : 10;
131 ret = poll(&pfd, 1, timeo);
135 log_err("fio: poll: %s\n", strerror(errno));
143 if (pfd.revents & POLLIN)
145 if (pfd.revents & (POLLERR|POLLHUP)) {
149 } while (ret >= 0 && block);
154 ret = fio_recv_data(sk, &cmd, sizeof(cmd));
158 /* We have a command, verify it and swap if need be */
159 ret = verify_convert_cmd(&cmd);
164 cmd_size = sizeof(cmd) + cmd.pdu_len;
166 cmd_size += cmd.pdu_len;
168 cmdret = realloc(cmdret, cmd_size);
171 memcpy(cmdret, &cmd, sizeof(cmd));
173 assert(cmdret->opcode == cmd.opcode);
178 /* There's payload, get it */
179 pdu = (void *) cmdret->payload + pdu_offset;
180 ret = fio_recv_data(sk, pdu, cmd.pdu_len);
184 /* Verify payload crc */
185 crc = crc16(pdu, cmd.pdu_len);
186 if (crc != cmd.pdu_crc16) {
187 log_err("fio: server bad crc on payload ");
188 log_err("(got %x, wanted %x)\n", cmd.pdu_crc16, crc);
193 pdu_offset += cmd.pdu_len;
195 cmdret->pdu_len += cmd.pdu_len;
197 } while (cmd.flags & FIO_NET_CMD_F_MORE);
203 cmdret->flags &= ~FIO_NET_CMD_F_MORE;
208 void fio_net_cmd_crc(struct fio_net_cmd *cmd)
212 cmd->cmd_crc16 = __cpu_to_le16(crc16(cmd, FIO_NET_CMD_CRC_SZ));
214 pdu_len = le32_to_cpu(cmd->pdu_len);
216 cmd->pdu_crc16 = __cpu_to_le16(crc16(cmd->payload, pdu_len));
219 int fio_net_send_cmd(int fd, uint16_t opcode, const void *buf, off_t size)
221 struct fio_net_cmd *cmd;
227 if (this_len > FIO_SERVER_MAX_PDU)
228 this_len = FIO_SERVER_MAX_PDU;
230 cmd = malloc(sizeof(*cmd) + this_len);
232 fio_init_net_cmd(cmd, opcode, buf, this_len);
235 cmd->flags = __cpu_to_le32(FIO_NET_CMD_F_MORE);
237 fio_net_cmd_crc(cmd);
239 ret = fio_send_data(fd, cmd, sizeof(*cmd) + this_len);
243 } while (!ret && size);
248 int fio_net_send_simple_cmd(int sk, uint16_t opcode, uint64_t serial)
250 struct fio_net_cmd cmd = {
251 .version = __cpu_to_le16(FIO_SERVER_VER1),
252 .opcode = cpu_to_le16(opcode),
253 .serial = cpu_to_le64(serial),
256 fio_net_cmd_crc(&cmd);
258 return fio_send_data(sk, &cmd, sizeof(cmd));
261 static int send_quit_command(void)
263 dprint(FD_NET, "server: sending quit\n");
264 return fio_net_send_simple_cmd(server_fd, FIO_NET_CMD_QUIT, 0);
267 static int handle_cur_job(struct fio_net_cmd *cmd)
269 void *buf = cmd->payload;
272 parse_jobs_ini(buf, 1, 0);
279 static int handle_probe_cmd(struct fio_net_cmd *cmd)
281 struct cmd_probe_pdu probe;
283 memset(&probe, 0, sizeof(probe));
284 gethostname((char *) probe.hostname, sizeof(probe.hostname));
286 probe.fio_minor = 58;
289 return fio_net_send_cmd(server_fd, FIO_NET_CMD_PROBE, &probe, sizeof(probe));
292 static int handle_command(struct fio_net_cmd *cmd)
296 dprint(FD_NET, "server: got opcode %d\n", cmd->opcode);
298 switch (cmd->opcode) {
299 case FIO_NET_CMD_QUIT:
300 fio_terminate_threads(TERMINATE_ALL);
302 case FIO_NET_CMD_EXIT:
305 case FIO_NET_CMD_JOB:
306 ret = handle_cur_job(cmd);
308 case FIO_NET_CMD_PROBE:
309 ret = handle_probe_cmd(cmd);
312 log_err("fio: unknown opcode: %d\n", cmd->opcode);
319 static int handle_connection(int sk, int block)
321 struct fio_net_cmd *cmd = NULL;
325 while (!exit_backend) {
326 cmd = fio_net_recv_cmd(sk, block);
332 ret = handle_command(cmd);
346 void fio_server_idle_loop(void)
349 handle_connection(server_fd, 0);
352 static int accept_loop(int listen_sk)
354 struct sockaddr addr;
355 unsigned int len = sizeof(addr);
357 int ret, sk, flags, exitval = 0;
359 flags = fcntl(listen_sk, F_GETFL);
361 fcntl(listen_sk, F_SETFL, flags);
366 ret = poll(&pfd, 1, 100);
370 log_err("fio: poll: %s\n", strerror(errno));
375 if (pfd.revents & POLLIN)
377 } while (!exit_backend);
382 sk = accept(listen_sk, &addr, &len);
384 log_err("fio: accept: %s\n", strerror(errno));
388 dprint(FD_NET, "server got a connection\n");
392 exitval = handle_connection(sk, 1);
404 static int fio_server(void)
406 struct sockaddr_in saddr_in;
407 struct sockaddr addr;
411 dprint(FD_NET, "starting server\n");
413 sk = socket(AF_INET, SOCK_STREAM, 0);
415 log_err("fio: socket: %s\n", strerror(errno));
420 if (setsockopt(sk, SOL_SOCKET, SO_REUSEADDR, &opt, sizeof(opt)) < 0) {
421 log_err("fio: setsockopt: %s\n", strerror(errno));
425 if (setsockopt(fd, SOL_SOCKET, SO_REUSEPORT, &opt, sizeof(opt)) < 0) {
426 log_err("fio: setsockopt: %s\n", strerror(errno));
431 saddr_in.sin_family = AF_INET;
432 saddr_in.sin_addr.s_addr = htonl(INADDR_ANY);
433 saddr_in.sin_port = htons(fio_net_port);
435 if (bind(sk, (struct sockaddr *) &saddr_in, sizeof(saddr_in)) < 0) {
436 log_err("fio: bind: %s\n", strerror(errno));
440 if (listen(sk, 1) < 0) {
441 log_err("fio: listen: %s\n", strerror(errno));
446 if (getsockname(sk, &addr, &len) < 0) {
447 log_err("fio: getsockname: %s\n", strerror(errno));
451 ret = accept_loop(sk);
456 int fio_server_text_output(const char *buf, unsigned int len)
459 return fio_net_send_cmd(server_fd, FIO_NET_CMD_TEXT, buf, len);
464 static void convert_io_stat(struct io_stat *dst, struct io_stat *src)
466 dst->max_val = cpu_to_le64(src->max_val);
467 dst->min_val = cpu_to_le64(src->min_val);
468 dst->samples = cpu_to_le64(src->samples);
470 dst->mean = __cpu_to_le64(src->mean);
471 dst->S = __cpu_to_le64(src->S);
474 static void convert_gs(struct group_run_stats *dst, struct group_run_stats *src)
478 for (i = 0; i < 2; i++) {
479 dst->max_run[i] = cpu_to_le64(src->max_run[i]);
480 dst->min_run[i] = cpu_to_le64(src->min_run[i]);
481 dst->max_bw[i] = cpu_to_le64(src->max_bw[i]);
482 dst->min_bw[i] = cpu_to_le64(src->min_bw[i]);
483 dst->io_kb[i] = cpu_to_le64(src->io_kb[i]);
484 dst->agg[i] = cpu_to_le64(src->agg[i]);
487 dst->kb_base = cpu_to_le32(src->kb_base);
488 dst->groupid = cpu_to_le32(src->groupid);
492 * Send a CMD_TS, which packs struct thread_stat and group_run_stats
493 * into a single payload.
495 void fio_server_send_ts(struct thread_stat *ts, struct group_run_stats *rs)
500 memset(&p, 0, sizeof(p));
502 strcpy(p.ts.name, ts->name);
503 strcpy(p.ts.verror, ts->verror);
504 strcpy(p.ts.description, ts->description);
506 p.ts.error = cpu_to_le32(ts->error);
507 p.ts.groupid = cpu_to_le32(ts->groupid);
508 p.ts.pid = cpu_to_le32(ts->pid);
509 p.ts.members = cpu_to_le32(ts->members);
511 for (i = 0; i < 2; i++) {
512 convert_io_stat(&p.ts.clat_stat[i], &ts->clat_stat[i]);
513 convert_io_stat(&p.ts.slat_stat[i], &ts->slat_stat[i]);
514 convert_io_stat(&p.ts.lat_stat[i], &ts->lat_stat[i]);
515 convert_io_stat(&p.ts.bw_stat[i], &ts->bw_stat[i]);
518 p.ts.usr_time = cpu_to_le64(ts->usr_time);
519 p.ts.sys_time = cpu_to_le64(ts->sys_time);
520 p.ts.ctx = cpu_to_le64(ts->ctx);
521 p.ts.minf = cpu_to_le64(ts->minf);
522 p.ts.majf = cpu_to_le64(ts->majf);
523 p.ts.clat_percentiles = cpu_to_le64(ts->clat_percentiles);
524 p.ts.percentile_list = NULL;
526 for (i = 0; i < FIO_IO_U_MAP_NR; i++) {
527 p.ts.io_u_map[i] = cpu_to_le32(ts->io_u_map[i]);
528 p.ts.io_u_submit[i] = cpu_to_le32(ts->io_u_submit[i]);
529 p.ts.io_u_complete[i] = cpu_to_le32(ts->io_u_complete[i]);
532 for (i = 0; i < FIO_IO_U_LAT_U_NR; i++) {
533 p.ts.io_u_lat_u[i] = cpu_to_le32(ts->io_u_lat_u[i]);
534 p.ts.io_u_lat_m[i] = cpu_to_le32(ts->io_u_lat_m[i]);
537 for (i = 0; i < 2; i++)
538 for (j = 0; j < FIO_IO_U_PLAT_NR; j++)
539 p.ts.io_u_plat[i][j] = cpu_to_le32(ts->io_u_plat[i][j]);
541 for (i = 0; i < 3; i++) {
542 p.ts.total_io_u[i] = cpu_to_le64(ts->total_io_u[i]);
543 p.ts.short_io_u[i] = cpu_to_le64(ts->short_io_u[i]);
546 p.ts.total_submit = cpu_to_le64(ts->total_submit);
547 p.ts.total_complete = cpu_to_le64(ts->total_complete);
549 for (i = 0; i < 2; i++) {
550 p.ts.io_bytes[i] = cpu_to_le64(ts->io_bytes[i]);
551 p.ts.runtime[i] = cpu_to_le64(ts->runtime[i]);
554 p.ts.total_run_time = cpu_to_le64(ts->total_run_time);
555 p.ts.continue_on_error = cpu_to_le16(ts->continue_on_error);
556 p.ts.total_err_count = cpu_to_le64(ts->total_err_count);
557 p.ts.first_error = cpu_to_le32(ts->first_error);
558 p.ts.kb_base = cpu_to_le32(ts->kb_base);
560 convert_gs(&p.rs, rs);
562 fio_net_send_cmd(server_fd, FIO_NET_CMD_TS, &p, sizeof(p));
565 void fio_server_send_gs(struct group_run_stats *rs)
567 struct group_run_stats gs;
570 fio_net_send_cmd(server_fd, FIO_NET_CMD_GS, &gs, sizeof(gs));
573 void fio_server_send_status(void)
580 size = sizeof(*je) + thread_number * sizeof(char);
582 memset(buf, 0, size);
585 if (!calc_thread_status(je)) {
590 je->nr_running = cpu_to_le32(je->nr_running);
591 je->nr_ramp = cpu_to_le32(je->nr_ramp);
592 je->nr_pending = cpu_to_le32(je->nr_pending);
593 je->files_open = cpu_to_le32(je->files_open);
594 je->m_rate = cpu_to_le32(je->m_rate);
595 je->t_rate = cpu_to_le32(je->t_rate);
596 je->m_iops = cpu_to_le32(je->m_iops);
597 je->t_iops = cpu_to_le32(je->t_iops);
599 for (i = 0; i < 2; i++) {
600 je->rate[i] = cpu_to_le32(je->rate[i]);
601 je->iops[i] = cpu_to_le32(je->iops[i]);
604 je->elapsed_sec = cpu_to_le32(je->nr_running);
605 je->eta_sec = cpu_to_le64(je->eta_sec);
607 fio_net_send_cmd(server_fd, FIO_NET_CMD_ETA, buf, size);
611 int fio_server_log(const char *format, ...)
617 va_start(args, format);
618 len = vsnprintf(buffer, sizeof(buffer), format, args);
621 return fio_server_text_output(buffer, len);
624 int fio_start_server(int daemonize)
631 openlog("fio", LOG_NDELAY|LOG_NOWAIT|LOG_PID, LOG_USER);
634 syslog(LOG_ERR, "failed server fork");
641 close(STDOUT_FILENO);
642 close(STDERR_FILENO);