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)
116 struct fio_net_cmd cmd, *cmdret = NULL;
117 size_t cmd_size = 0, pdu_offset = 0;
129 ret = poll(&pfd, 1, 100);
133 log_err("fio: poll: %s\n", strerror(errno));
138 if (pfd.revents & POLLIN)
140 if (pfd.revents & (POLLERR|POLLHUP)) {
149 ret = fio_recv_data(sk, &cmd, sizeof(cmd));
153 /* We have a command, verify it and swap if need be */
154 ret = verify_convert_cmd(&cmd);
159 cmd_size = sizeof(cmd) + cmd.pdu_len;
161 cmd_size += cmd.pdu_len;
163 cmdret = realloc(cmdret, cmd_size);
166 memcpy(cmdret, &cmd, sizeof(cmd));
168 assert(cmdret->opcode == cmd.opcode);
173 /* There's payload, get it */
174 pdu = (void *) cmdret->payload + pdu_offset;
175 ret = fio_recv_data(sk, pdu, cmd.pdu_len);
179 /* Verify payload crc */
180 crc = crc16(pdu, cmd.pdu_len);
181 if (crc != cmd.pdu_crc16) {
182 log_err("fio: server bad crc on payload ");
183 log_err("(got %x, wanted %x)\n", cmd.pdu_crc16, crc);
188 pdu_offset += cmd.pdu_len;
190 cmdret->pdu_len += cmd.pdu_len;
192 } while (cmd.flags & FIO_NET_CMD_F_MORE);
198 cmdret->flags &= ~FIO_NET_CMD_F_MORE;
203 void fio_net_cmd_crc(struct fio_net_cmd *cmd)
207 cmd->cmd_crc16 = __cpu_to_le16(crc16(cmd, FIO_NET_CMD_CRC_SZ));
209 pdu_len = le32_to_cpu(cmd->pdu_len);
211 cmd->pdu_crc16 = __cpu_to_le16(crc16(cmd->payload, pdu_len));
214 int fio_net_send_cmd(int fd, uint16_t opcode, const void *buf, off_t size)
216 struct fio_net_cmd *cmd;
222 if (this_len > FIO_SERVER_MAX_PDU)
223 this_len = FIO_SERVER_MAX_PDU;
225 cmd = malloc(sizeof(*cmd) + this_len);
227 fio_init_net_cmd(cmd, opcode, buf, this_len);
230 cmd->flags = __cpu_to_le32(FIO_NET_CMD_F_MORE);
232 fio_net_cmd_crc(cmd);
234 ret = fio_send_data(fd, cmd, sizeof(*cmd) + this_len);
238 } while (!ret && size);
243 int fio_net_send_simple_cmd(int sk, uint16_t opcode, uint64_t serial)
245 struct fio_net_cmd cmd = {
246 .version = __cpu_to_le16(FIO_SERVER_VER1),
247 .opcode = cpu_to_le16(opcode),
248 .serial = cpu_to_le64(serial),
251 fio_net_cmd_crc(&cmd);
253 return fio_send_data(sk, &cmd, sizeof(cmd));
256 static int send_quit_command(void)
258 dprint(FD_NET, "server: sending quit\n");
259 return fio_net_send_simple_cmd(server_fd, FIO_NET_CMD_QUIT, 0);
262 static int handle_cur_job(struct fio_net_cmd *cmd)
264 void *buf = cmd->payload;
267 parse_jobs_ini(buf, 1, 0);
274 static int handle_command(struct fio_net_cmd *cmd)
278 dprint(FD_NET, "server: got opcode %d\n", cmd->opcode);
280 switch (cmd->opcode) {
281 case FIO_NET_CMD_QUIT:
282 fio_terminate_threads(TERMINATE_ALL);
284 case FIO_NET_CMD_EXIT:
287 case FIO_NET_CMD_ACK:
289 case FIO_NET_CMD_NAK:
291 case FIO_NET_CMD_JOB:
292 ret = handle_cur_job(cmd);
295 log_err("fio: unknown opcode: %d\n", cmd->opcode);
302 static int handle_connection(int sk)
304 struct fio_net_cmd *cmd = NULL;
308 while (!exit_backend) {
309 cmd = fio_net_recv_cmd(sk);
315 ret = handle_command(cmd);
329 void fio_server_idle_loop(void)
332 handle_connection(server_fd);
335 static int accept_loop(int listen_sk)
337 struct sockaddr addr;
338 unsigned int len = sizeof(addr);
340 int ret, sk, flags, exitval = 0;
342 flags = fcntl(listen_sk, F_GETFL);
344 fcntl(listen_sk, F_SETFL, flags);
349 ret = poll(&pfd, 1, 100);
353 log_err("fio: poll: %s\n", strerror(errno));
358 if (pfd.revents & POLLIN)
360 } while (!exit_backend);
365 sk = accept(listen_sk, &addr, &len);
367 log_err("fio: accept: %s\n", strerror(errno));
371 dprint(FD_NET, "server got a connection\n");
375 exitval = handle_connection(sk);
387 static int fio_server(void)
389 struct sockaddr_in saddr_in;
390 struct sockaddr addr;
394 dprint(FD_NET, "starting server\n");
396 sk = socket(AF_INET, SOCK_STREAM, 0);
398 log_err("fio: socket: %s\n", strerror(errno));
403 if (setsockopt(sk, SOL_SOCKET, SO_REUSEADDR, &opt, sizeof(opt)) < 0) {
404 log_err("fio: setsockopt: %s\n", strerror(errno));
408 if (setsockopt(fd, SOL_SOCKET, SO_REUSEPORT, &opt, sizeof(opt)) < 0) {
409 log_err("fio: setsockopt: %s\n", strerror(errno));
414 saddr_in.sin_family = AF_INET;
415 saddr_in.sin_addr.s_addr = htonl(INADDR_ANY);
416 saddr_in.sin_port = htons(fio_net_port);
418 if (bind(sk, (struct sockaddr *) &saddr_in, sizeof(saddr_in)) < 0) {
419 log_err("fio: bind: %s\n", strerror(errno));
423 if (listen(sk, 1) < 0) {
424 log_err("fio: listen: %s\n", strerror(errno));
429 if (getsockname(sk, &addr, &len) < 0) {
430 log_err("fio: getsockname: %s\n", strerror(errno));
434 ret = accept_loop(sk);
439 int fio_server_text_output(const char *buf, unsigned int len)
442 return fio_net_send_cmd(server_fd, FIO_NET_CMD_TEXT, buf, len);
447 static void convert_io_stat(struct io_stat *dst, struct io_stat *src)
449 dst->max_val = cpu_to_le64(src->max_val);
450 dst->min_val = cpu_to_le64(src->min_val);
451 dst->samples = cpu_to_le64(src->samples);
453 dst->mean = __cpu_to_le64(src->mean);
454 dst->S = __cpu_to_le64(src->S);
457 static void convert_gs(struct group_run_stats *dst, struct group_run_stats *src)
461 for (i = 0; i < 2; i++) {
462 dst->max_run[i] = cpu_to_le64(src->max_run[i]);
463 dst->min_run[i] = cpu_to_le64(src->min_run[i]);
464 dst->max_bw[i] = cpu_to_le64(src->max_bw[i]);
465 dst->min_bw[i] = cpu_to_le64(src->min_bw[i]);
466 dst->io_kb[i] = cpu_to_le64(src->io_kb[i]);
467 dst->agg[i] = cpu_to_le64(src->agg[i]);
470 dst->kb_base = cpu_to_le32(src->kb_base);
471 dst->groupid = cpu_to_le32(src->groupid);
475 * Send a CMD_TS, which packs struct thread_stat and group_run_stats
476 * into a single payload.
478 void fio_server_send_ts(struct thread_stat *ts, struct group_run_stats *rs)
483 memset(&p, 0, sizeof(p));
485 strcpy(p.ts.name, ts->name);
486 strcpy(p.ts.verror, ts->verror);
487 strcpy(p.ts.description, ts->description);
489 p.ts.error = cpu_to_le32(ts->error);
490 p.ts.groupid = cpu_to_le32(ts->groupid);
491 p.ts.pid = cpu_to_le32(ts->pid);
492 p.ts.members = cpu_to_le32(ts->members);
494 for (i = 0; i < 2; i++) {
495 convert_io_stat(&p.ts.clat_stat[i], &ts->clat_stat[i]);
496 convert_io_stat(&p.ts.slat_stat[i], &ts->slat_stat[i]);
497 convert_io_stat(&p.ts.lat_stat[i], &ts->lat_stat[i]);
498 convert_io_stat(&p.ts.bw_stat[i], &ts->bw_stat[i]);
501 p.ts.usr_time = cpu_to_le64(ts->usr_time);
502 p.ts.sys_time = cpu_to_le64(ts->sys_time);
503 p.ts.ctx = cpu_to_le64(ts->ctx);
504 p.ts.minf = cpu_to_le64(ts->minf);
505 p.ts.majf = cpu_to_le64(ts->majf);
506 p.ts.clat_percentiles = cpu_to_le64(ts->clat_percentiles);
507 p.ts.percentile_list = NULL;
509 for (i = 0; i < FIO_IO_U_MAP_NR; i++) {
510 p.ts.io_u_map[i] = cpu_to_le32(ts->io_u_map[i]);
511 p.ts.io_u_submit[i] = cpu_to_le32(ts->io_u_submit[i]);
512 p.ts.io_u_complete[i] = cpu_to_le32(ts->io_u_complete[i]);
515 for (i = 0; i < FIO_IO_U_LAT_U_NR; i++) {
516 p.ts.io_u_lat_u[i] = cpu_to_le32(ts->io_u_lat_u[i]);
517 p.ts.io_u_lat_m[i] = cpu_to_le32(ts->io_u_lat_m[i]);
520 for (i = 0; i < 2; i++)
521 for (j = 0; j < FIO_IO_U_PLAT_NR; j++)
522 p.ts.io_u_plat[i][j] = cpu_to_le32(ts->io_u_plat[i][j]);
524 for (i = 0; i < 3; i++) {
525 p.ts.total_io_u[i] = cpu_to_le64(ts->total_io_u[i]);
526 p.ts.short_io_u[i] = cpu_to_le64(ts->short_io_u[i]);
529 p.ts.total_submit = cpu_to_le64(ts->total_submit);
530 p.ts.total_complete = cpu_to_le64(ts->total_complete);
532 for (i = 0; i < 2; i++) {
533 p.ts.io_bytes[i] = cpu_to_le64(ts->io_bytes[i]);
534 p.ts.runtime[i] = cpu_to_le64(ts->runtime[i]);
537 p.ts.total_run_time = cpu_to_le64(ts->total_run_time);
538 p.ts.continue_on_error = cpu_to_le16(ts->continue_on_error);
539 p.ts.total_err_count = cpu_to_le64(ts->total_err_count);
540 p.ts.first_error = cpu_to_le32(ts->first_error);
541 p.ts.kb_base = cpu_to_le32(ts->kb_base);
543 convert_gs(&p.rs, rs);
545 fio_net_send_cmd(server_fd, FIO_NET_CMD_TS, &p, sizeof(p));
548 void fio_server_send_gs(struct group_run_stats *rs)
550 struct group_run_stats gs;
553 fio_net_send_cmd(server_fd, FIO_NET_CMD_GS, &gs, sizeof(gs));
556 void fio_server_send_status(void)
563 size = sizeof(*je) + thread_number * sizeof(char);
565 memset(buf, 0, size);
568 if (!calc_thread_status(je)) {
573 je->nr_running = cpu_to_le32(je->nr_running);
574 je->nr_ramp = cpu_to_le32(je->nr_ramp);
575 je->nr_pending = cpu_to_le32(je->nr_pending);
576 je->files_open = cpu_to_le32(je->files_open);
577 je->m_rate = cpu_to_le32(je->m_rate);
578 je->t_rate = cpu_to_le32(je->t_rate);
579 je->m_iops = cpu_to_le32(je->m_iops);
580 je->t_iops = cpu_to_le32(je->t_iops);
582 for (i = 0; i < 2; i++) {
583 je->rate[i] = cpu_to_le32(je->rate[i]);
584 je->iops[i] = cpu_to_le32(je->iops[i]);
587 je->elapsed_sec = cpu_to_le32(je->nr_running);
588 je->eta_sec = cpu_to_le64(je->eta_sec);
590 fio_net_send_cmd(server_fd, FIO_NET_CMD_ETA, buf, size);
594 int fio_server_log(const char *format, ...)
600 va_start(args, format);
601 len = vsnprintf(buffer, sizeof(buffer), format, args);
604 return fio_server_text_output(buffer, len);
607 int fio_start_server(int daemonize)
614 openlog("fio", LOG_NDELAY|LOG_NOWAIT|LOG_PID, LOG_USER);
617 syslog(LOG_ERR, "failed server fork");
624 close(STDOUT_FILENO);
625 close(STDERR_FILENO);