11 #include <sys/socket.h>
15 #include <netinet/in.h>
16 #include <arpa/inet.h>
26 #include "crc/crc16.h"
27 #include "lib/ieee754.h"
29 int fio_net_port = FIO_NET_PORT;
33 static int server_fd = -1;
34 static char *fio_server_arg;
35 static char *bind_sock;
36 static struct sockaddr_in saddr_in;
37 static struct sockaddr_in6 saddr_in6;
40 static unsigned int has_zlib = 1;
42 static unsigned int has_zlib = 0;
44 static unsigned int use_zlib;
46 struct fio_fork_item {
47 struct flist_head list;
54 static const char *fio_server_ops[FIO_NET_CMD_NR] = {
75 const char *fio_server_op(unsigned int op)
79 if (op < FIO_NET_CMD_NR)
80 return fio_server_ops[op];
82 sprintf(buf, "UNKNOWN/%d", op);
86 static ssize_t iov_total_len(const struct iovec *iov, int count)
98 static int fio_sendv_data(int sk, struct iovec *iov, int count)
100 ssize_t total_len = iov_total_len(iov, count);
104 ret = writev(sk, iov, count);
111 if (ret >= iov->iov_len) {
116 iov->iov_base += ret;
122 else if (errno == EAGAIN || errno == EINTR)
126 } while (!exit_backend);
137 int fio_send_data(int sk, const void *p, unsigned int len)
139 struct iovec iov = { .iov_base = (void *) p, .iov_len = len };
141 assert(len <= sizeof(struct fio_net_cmd) + FIO_SERVER_MAX_FRAGMENT_PDU);
143 return fio_sendv_data(sk, &iov, 1);
146 int fio_recv_data(int sk, void *p, unsigned int len)
149 int ret = recv(sk, p, len, MSG_WAITALL);
159 else if (errno == EAGAIN || errno == EINTR)
163 } while (!exit_backend);
171 static int verify_convert_cmd(struct fio_net_cmd *cmd)
175 cmd->cmd_crc16 = le16_to_cpu(cmd->cmd_crc16);
176 cmd->pdu_crc16 = le16_to_cpu(cmd->pdu_crc16);
178 crc = fio_crc16(cmd, FIO_NET_CMD_CRC_SZ);
179 if (crc != cmd->cmd_crc16) {
180 log_err("fio: server bad crc on command (got %x, wanted %x)\n",
181 cmd->cmd_crc16, crc);
185 cmd->version = le16_to_cpu(cmd->version);
186 cmd->opcode = le16_to_cpu(cmd->opcode);
187 cmd->flags = le32_to_cpu(cmd->flags);
188 cmd->tag = le64_to_cpu(cmd->tag);
189 cmd->pdu_len = le32_to_cpu(cmd->pdu_len);
191 switch (cmd->version) {
195 log_err("fio: bad server cmd version %d\n", cmd->version);
199 if (cmd->pdu_len > FIO_SERVER_MAX_FRAGMENT_PDU) {
200 log_err("fio: command payload too large: %u\n", cmd->pdu_len);
208 * Read (and defragment, if necessary) incoming commands
210 struct fio_net_cmd *fio_net_recv_cmd(int sk)
212 struct fio_net_cmd cmd, *cmdret = NULL;
213 size_t cmd_size = 0, pdu_offset = 0;
219 ret = fio_recv_data(sk, &cmd, sizeof(cmd));
223 /* We have a command, verify it and swap if need be */
224 ret = verify_convert_cmd(&cmd);
229 /* if this is text, add room for \0 at the end */
230 cmd_size = sizeof(cmd) + cmd.pdu_len + 1;
233 cmd_size += cmd.pdu_len;
235 cmdret = realloc(cmdret, cmd_size);
238 memcpy(cmdret, &cmd, sizeof(cmd));
239 else if (cmdret->opcode != cmd.opcode) {
240 log_err("fio: fragment opcode mismatch (%d != %d)\n",
241 cmdret->opcode, cmd.opcode);
249 /* There's payload, get it */
250 pdu = (void *) cmdret->payload + pdu_offset;
251 ret = fio_recv_data(sk, pdu, cmd.pdu_len);
255 /* Verify payload crc */
256 crc = fio_crc16(pdu, cmd.pdu_len);
257 if (crc != cmd.pdu_crc16) {
258 log_err("fio: server bad crc on payload ");
259 log_err("(got %x, wanted %x)\n", cmd.pdu_crc16, crc);
264 pdu_offset += cmd.pdu_len;
266 cmdret->pdu_len += cmd.pdu_len;
268 } while (cmd.flags & FIO_NET_CMD_F_MORE);
274 /* zero-terminate text input */
275 if (cmdret->pdu_len) {
276 if (cmdret->opcode == FIO_NET_CMD_TEXT) {
277 struct cmd_text_pdu *pdu = (struct cmd_text_pdu *) cmdret->payload;
278 char *buf = (char *) pdu->buf;
280 buf[pdu->buf_len] = '\0';
281 } else if (cmdret->opcode == FIO_NET_CMD_JOB) {
282 struct cmd_job_pdu *pdu = (struct cmd_job_pdu *) cmdret->payload;
283 char *buf = (char *) pdu->buf;
284 int len = le32_to_cpu(pdu->buf_len);
290 /* frag flag is internal */
291 cmdret->flags &= ~FIO_NET_CMD_F_MORE;
297 static void add_reply(uint64_t tag, struct flist_head *list)
299 struct fio_net_cmd_reply *reply;
301 reply = (struct fio_net_cmd_reply *) (uintptr_t) tag;
302 flist_add_tail(&reply->list, list);
305 static uint64_t alloc_reply(uint64_t tag, uint16_t opcode)
307 struct fio_net_cmd_reply *reply;
309 reply = calloc(1, sizeof(*reply));
310 INIT_FLIST_HEAD(&reply->list);
311 gettimeofday(&reply->tv, NULL);
312 reply->saved_tag = tag;
313 reply->opcode = opcode;
315 return (uintptr_t) reply;
318 static void free_reply(uint64_t tag)
320 struct fio_net_cmd_reply *reply;
322 reply = (struct fio_net_cmd_reply *) (uintptr_t) tag;
326 void fio_net_cmd_crc_pdu(struct fio_net_cmd *cmd, const void *pdu)
330 cmd->cmd_crc16 = __cpu_to_le16(fio_crc16(cmd, FIO_NET_CMD_CRC_SZ));
332 pdu_len = le32_to_cpu(cmd->pdu_len);
333 cmd->pdu_crc16 = __cpu_to_le16(fio_crc16(pdu, pdu_len));
336 void fio_net_cmd_crc(struct fio_net_cmd *cmd)
338 fio_net_cmd_crc_pdu(cmd, cmd->payload);
341 int fio_net_send_cmd(int fd, uint16_t opcode, const void *buf, off_t size,
342 uint64_t *tagptr, struct flist_head *list)
344 struct fio_net_cmd *cmd = NULL;
345 size_t this_len, cur_len = 0;
351 tag = *tagptr = alloc_reply(*tagptr, opcode);
353 tag = tagptr ? *tagptr : 0;
357 if (this_len > FIO_SERVER_MAX_FRAGMENT_PDU)
358 this_len = FIO_SERVER_MAX_FRAGMENT_PDU;
360 if (!cmd || cur_len < sizeof(*cmd) + this_len) {
364 cur_len = sizeof(*cmd) + this_len;
365 cmd = malloc(cur_len);
368 fio_init_net_cmd(cmd, opcode, buf, this_len, tag);
371 cmd->flags = __cpu_to_le32(FIO_NET_CMD_F_MORE);
373 fio_net_cmd_crc(cmd);
375 ret = fio_send_data(fd, cmd, sizeof(*cmd) + this_len);
378 } while (!ret && size);
384 add_reply(tag, list);
393 static int fio_net_send_simple_stack_cmd(int sk, uint16_t opcode, uint64_t tag)
395 struct fio_net_cmd cmd;
397 fio_init_net_cmd(&cmd, opcode, NULL, 0, tag);
398 fio_net_cmd_crc(&cmd);
400 return fio_send_data(sk, &cmd, sizeof(cmd));
404 * If 'list' is non-NULL, then allocate and store the sent command for
405 * later verification.
407 int fio_net_send_simple_cmd(int sk, uint16_t opcode, uint64_t tag,
408 struct flist_head *list)
413 tag = alloc_reply(tag, opcode);
415 ret = fio_net_send_simple_stack_cmd(sk, opcode, tag);
424 add_reply(tag, list);
429 int fio_net_send_quit(int sk)
431 dprint(FD_NET, "server: sending quit\n");
433 return fio_net_send_simple_cmd(sk, FIO_NET_CMD_QUIT, 0, NULL);
436 static int fio_net_send_ack(int sk, struct fio_net_cmd *cmd, int error,
439 struct cmd_end_pdu epdu;
445 epdu.error = __cpu_to_le32(error);
446 epdu.signal = __cpu_to_le32(signal);
447 return fio_net_send_cmd(sk, FIO_NET_CMD_STOP, &epdu, sizeof(epdu), &tag, NULL);
450 int fio_net_send_stop(int sk, int error, int signal)
452 dprint(FD_NET, "server: sending stop (%d, %d)\n", error, signal);
453 return fio_net_send_ack(sk, NULL, error, signal);
456 static void fio_server_add_fork_item(pid_t pid, struct flist_head *list)
458 struct fio_fork_item *ffi;
460 ffi = malloc(sizeof(*ffi));
465 flist_add_tail(&ffi->list, list);
468 static void fio_server_add_conn_pid(struct flist_head *conn_list, pid_t pid)
470 dprint(FD_NET, "server: forked off connection job (pid=%u)\n", (int) pid);
471 fio_server_add_fork_item(pid, conn_list);
474 static void fio_server_add_job_pid(struct flist_head *job_list, pid_t pid)
476 dprint(FD_NET, "server: forked off job job (pid=%u)\n", (int) pid);
477 fio_server_add_fork_item(pid, job_list);
480 static void fio_server_check_fork_item(struct fio_fork_item *ffi)
484 ret = waitpid(ffi->pid, &status, WNOHANG);
486 if (errno == ECHILD) {
487 log_err("fio: connection pid %u disappeared\n", (int) ffi->pid);
490 log_err("fio: waitpid: %s\n", strerror(errno));
491 } else if (ret == ffi->pid) {
492 if (WIFSIGNALED(status)) {
493 ffi->signal = WTERMSIG(status);
496 if (WIFEXITED(status)) {
497 if (WEXITSTATUS(status))
498 ffi->exitval = WEXITSTATUS(status);
504 static void fio_server_fork_item_done(struct fio_fork_item *ffi)
506 dprint(FD_NET, "pid %u exited, sig=%u, exitval=%d\n", (int) ffi->pid, ffi->signal, ffi->exitval);
509 * Fold STOP and QUIT...
511 fio_net_send_stop(server_fd, ffi->exitval, ffi->signal);
512 fio_net_send_quit(server_fd);
513 flist_del(&ffi->list);
517 static void fio_server_check_fork_items(struct flist_head *list)
519 struct flist_head *entry, *tmp;
520 struct fio_fork_item *ffi;
522 flist_for_each_safe(entry, tmp, list) {
523 ffi = flist_entry(entry, struct fio_fork_item, list);
525 fio_server_check_fork_item(ffi);
528 fio_server_fork_item_done(ffi);
532 static void fio_server_check_jobs(struct flist_head *job_list)
534 fio_server_check_fork_items(job_list);
537 static void fio_server_check_conns(struct flist_head *conn_list)
539 fio_server_check_fork_items(conn_list);
542 static int handle_run_cmd(struct flist_head *job_list, struct fio_net_cmd *cmd)
551 fio_server_add_job_pid(job_list, pid);
560 static int handle_job_cmd(struct fio_net_cmd *cmd)
562 struct cmd_job_pdu *pdu = (struct cmd_job_pdu *) cmd->payload;
563 void *buf = pdu->buf;
564 struct cmd_start_pdu spdu;
566 pdu->buf_len = le32_to_cpu(pdu->buf_len);
567 pdu->client_type = le32_to_cpu(pdu->client_type);
569 if (parse_jobs_ini(buf, 1, 0, pdu->client_type)) {
570 fio_net_send_quit(server_fd);
574 spdu.jobs = cpu_to_le32(thread_number);
575 spdu.stat_outputs = cpu_to_le32(stat_number);
576 fio_net_send_cmd(server_fd, FIO_NET_CMD_START, &spdu, sizeof(spdu), NULL, NULL);
580 static int handle_jobline_cmd(struct fio_net_cmd *cmd)
582 void *pdu = cmd->payload;
583 struct cmd_single_line_pdu *cslp;
584 struct cmd_line_pdu *clp;
585 unsigned long offset;
586 struct cmd_start_pdu spdu;
591 clp->lines = le16_to_cpu(clp->lines);
592 clp->client_type = le16_to_cpu(clp->client_type);
593 argv = malloc(clp->lines * sizeof(char *));
594 offset = sizeof(*clp);
596 dprint(FD_NET, "server: %d command line args\n", clp->lines);
598 for (i = 0; i < clp->lines; i++) {
600 argv[i] = (char *) cslp->text;
602 offset += sizeof(*cslp) + le16_to_cpu(cslp->len);
603 dprint(FD_NET, "server: %d: %s\n", i, argv[i]);
606 if (parse_cmd_line(clp->lines, argv, clp->client_type)) {
607 fio_net_send_quit(server_fd);
614 spdu.jobs = cpu_to_le32(thread_number);
615 spdu.stat_outputs = cpu_to_le32(stat_number);
616 fio_net_send_cmd(server_fd, FIO_NET_CMD_START, &spdu, sizeof(spdu), NULL, NULL);
620 static int handle_probe_cmd(struct fio_net_cmd *cmd)
622 struct cmd_client_probe_pdu *pdu = (struct cmd_client_probe_pdu *) cmd->payload;
623 struct cmd_probe_reply_pdu probe;
624 uint64_t tag = cmd->tag;
626 dprint(FD_NET, "server: sending probe reply\n");
628 memset(&probe, 0, sizeof(probe));
629 gethostname((char *) probe.hostname, sizeof(probe.hostname));
630 #ifdef CONFIG_BIG_ENDIAN
633 strncpy((char *) probe.fio_version, fio_version_string, sizeof(probe.fio_version));
636 probe.arch = FIO_ARCH;
637 probe.bpp = sizeof(void *);
638 probe.cpus = __cpu_to_le32(cpus_online());
641 * If the client supports compression and we do too, then enable it
643 if (has_zlib && le64_to_cpu(pdu->flags) & FIO_PROBE_FLAG_ZLIB) {
644 probe.flags = __cpu_to_le64(FIO_PROBE_FLAG_ZLIB);
651 return fio_net_send_cmd(server_fd, FIO_NET_CMD_PROBE, &probe, sizeof(probe), &tag, NULL);
654 static int handle_send_eta_cmd(struct fio_net_cmd *cmd)
658 uint64_t tag = cmd->tag;
664 size = sizeof(*je) + thread_number * sizeof(char) + 1;
668 if (!calc_thread_status(je, 1)) {
673 dprint(FD_NET, "server sending status\n");
675 je->nr_running = cpu_to_le32(je->nr_running);
676 je->nr_ramp = cpu_to_le32(je->nr_ramp);
677 je->nr_pending = cpu_to_le32(je->nr_pending);
678 je->nr_setting_up = cpu_to_le32(je->nr_setting_up);
679 je->files_open = cpu_to_le32(je->files_open);
681 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
682 je->m_rate[i] = cpu_to_le32(je->m_rate[i]);
683 je->t_rate[i] = cpu_to_le32(je->t_rate[i]);
684 je->m_iops[i] = cpu_to_le32(je->m_iops[i]);
685 je->t_iops[i] = cpu_to_le32(je->t_iops[i]);
686 je->rate[i] = cpu_to_le32(je->rate[i]);
687 je->iops[i] = cpu_to_le32(je->iops[i]);
690 je->elapsed_sec = cpu_to_le64(je->elapsed_sec);
691 je->eta_sec = cpu_to_le64(je->eta_sec);
692 je->nr_threads = cpu_to_le32(je->nr_threads);
693 je->is_pow2 = cpu_to_le32(je->is_pow2);
694 je->unit_base = cpu_to_le32(je->unit_base);
696 fio_net_send_cmd(server_fd, FIO_NET_CMD_ETA, je, size, &tag, NULL);
701 static int send_update_job_reply(int fd, uint64_t __tag, int error)
703 uint64_t tag = __tag;
706 pdu_error = __cpu_to_le32(error);
707 return fio_net_send_cmd(fd, FIO_NET_CMD_UPDATE_JOB, &pdu_error, sizeof(pdu_error), &tag, NULL);
710 static int handle_update_job_cmd(struct fio_net_cmd *cmd)
712 struct cmd_add_job_pdu *pdu = (struct cmd_add_job_pdu *) cmd->payload;
713 struct thread_data *td;
716 tnumber = le32_to_cpu(pdu->thread_number);
718 dprint(FD_NET, "server: updating options for job %u\n", tnumber);
720 if (!tnumber || tnumber > thread_number) {
721 send_update_job_reply(server_fd, cmd->tag, ENODEV);
725 td = &threads[tnumber - 1];
726 convert_thread_options_to_cpu(&td->o, &pdu->top);
727 send_update_job_reply(server_fd, cmd->tag, 0);
731 static int handle_command(struct flist_head *job_list, struct fio_net_cmd *cmd)
735 dprint(FD_NET, "server: got op [%s], pdu=%u, tag=%llx\n",
736 fio_server_op(cmd->opcode), cmd->pdu_len,
737 (unsigned long long) cmd->tag);
739 switch (cmd->opcode) {
740 case FIO_NET_CMD_QUIT:
741 fio_terminate_threads(TERMINATE_ALL);
743 case FIO_NET_CMD_EXIT:
746 case FIO_NET_CMD_JOB:
747 ret = handle_job_cmd(cmd);
749 case FIO_NET_CMD_JOBLINE:
750 ret = handle_jobline_cmd(cmd);
752 case FIO_NET_CMD_PROBE:
753 ret = handle_probe_cmd(cmd);
755 case FIO_NET_CMD_SEND_ETA:
756 ret = handle_send_eta_cmd(cmd);
758 case FIO_NET_CMD_RUN:
759 ret = handle_run_cmd(job_list, cmd);
761 case FIO_NET_CMD_UPDATE_JOB:
762 ret = handle_update_job_cmd(cmd);
765 log_err("fio: unknown opcode: %s\n", fio_server_op(cmd->opcode));
772 static int handle_connection(int sk)
774 struct fio_net_cmd *cmd = NULL;
775 FLIST_HEAD(job_list);
782 while (!exit_backend) {
783 struct pollfd pfd = {
792 if (!flist_empty(&job_list))
795 ret = poll(&pfd, 1, timeout);
799 log_err("fio: poll: %s\n", strerror(errno));
802 fio_server_check_jobs(&job_list);
806 if (pfd.revents & POLLIN)
808 if (pfd.revents & (POLLERR|POLLHUP)) {
812 } while (!exit_backend);
814 fio_server_check_jobs(&job_list);
819 cmd = fio_net_recv_cmd(sk);
825 ret = handle_command(&job_list, cmd);
840 static int accept_loop(int listen_sk)
842 struct sockaddr_in addr;
843 struct sockaddr_in6 addr6;
844 socklen_t len = use_ipv6 ? sizeof(addr6) : sizeof(addr);
846 int ret = 0, sk, flags, exitval = 0;
847 FLIST_HEAD(conn_list);
849 dprint(FD_NET, "server enter accept loop\n");
851 flags = fcntl(listen_sk, F_GETFL);
853 fcntl(listen_sk, F_SETFL, flags);
855 while (!exit_backend) {
865 if (!flist_empty(&conn_list))
868 ret = poll(&pfd, 1, timeout);
872 log_err("fio: poll: %s\n", strerror(errno));
875 fio_server_check_conns(&conn_list);
879 if (pfd.revents & POLLIN)
881 } while (!exit_backend);
883 fio_server_check_conns(&conn_list);
885 if (exit_backend || ret < 0)
889 sk = accept(listen_sk, (struct sockaddr *) &addr6, &len);
891 sk = accept(listen_sk, (struct sockaddr *) &addr, &len);
894 log_err("fio: accept: %s\n", strerror(errno));
899 from = inet_ntop(AF_INET6, (struct sockaddr *) &addr6.sin6_addr, buf, sizeof(buf));
901 from = inet_ntop(AF_INET, (struct sockaddr *) &addr.sin_addr, buf, sizeof(buf));
903 dprint(FD_NET, "server: connect from %s\n", from);
908 fio_server_add_conn_pid(&conn_list, pid);
913 handle_connection(sk);
919 int fio_server_text_output(int level, const char *buf, size_t len)
921 struct cmd_text_pdu *pdu;
926 return log_local_buf(buf, len);
928 tlen = sizeof(*pdu) + len;
931 pdu->level = __cpu_to_le32(level);
932 pdu->buf_len = __cpu_to_le32(len);
934 gettimeofday(&tv, NULL);
935 pdu->log_sec = __cpu_to_le64(tv.tv_sec);
936 pdu->log_usec = __cpu_to_le64(tv.tv_usec);
938 memcpy(pdu->buf, buf, len);
940 fio_net_send_cmd(server_fd, FIO_NET_CMD_TEXT, pdu, tlen, NULL, NULL);
945 static void convert_io_stat(struct io_stat *dst, struct io_stat *src)
947 dst->max_val = cpu_to_le64(src->max_val);
948 dst->min_val = cpu_to_le64(src->min_val);
949 dst->samples = cpu_to_le64(src->samples);
952 * Encode to IEEE 754 for network transfer
954 dst->mean.u.i = __cpu_to_le64(fio_double_to_uint64(src->mean.u.f));
955 dst->S.u.i = __cpu_to_le64(fio_double_to_uint64(src->S.u.f));
958 static void convert_gs(struct group_run_stats *dst, struct group_run_stats *src)
962 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
963 dst->max_run[i] = cpu_to_le64(src->max_run[i]);
964 dst->min_run[i] = cpu_to_le64(src->min_run[i]);
965 dst->max_bw[i] = cpu_to_le64(src->max_bw[i]);
966 dst->min_bw[i] = cpu_to_le64(src->min_bw[i]);
967 dst->io_kb[i] = cpu_to_le64(src->io_kb[i]);
968 dst->agg[i] = cpu_to_le64(src->agg[i]);
971 dst->kb_base = cpu_to_le32(src->kb_base);
972 dst->unit_base = cpu_to_le32(src->unit_base);
973 dst->groupid = cpu_to_le32(src->groupid);
974 dst->unified_rw_rep = cpu_to_le32(src->unified_rw_rep);
978 * Send a CMD_TS, which packs struct thread_stat and group_run_stats
979 * into a single payload.
981 void fio_server_send_ts(struct thread_stat *ts, struct group_run_stats *rs)
986 dprint(FD_NET, "server sending end stats\n");
988 memset(&p, 0, sizeof(p));
990 strcpy(p.ts.name, ts->name);
991 strcpy(p.ts.verror, ts->verror);
992 strcpy(p.ts.description, ts->description);
994 p.ts.error = cpu_to_le32(ts->error);
995 p.ts.thread_number = cpu_to_le32(ts->thread_number);
996 p.ts.groupid = cpu_to_le32(ts->groupid);
997 p.ts.pid = cpu_to_le32(ts->pid);
998 p.ts.members = cpu_to_le32(ts->members);
999 p.ts.unified_rw_rep = cpu_to_le32(ts->unified_rw_rep);
1001 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
1002 convert_io_stat(&p.ts.clat_stat[i], &ts->clat_stat[i]);
1003 convert_io_stat(&p.ts.slat_stat[i], &ts->slat_stat[i]);
1004 convert_io_stat(&p.ts.lat_stat[i], &ts->lat_stat[i]);
1005 convert_io_stat(&p.ts.bw_stat[i], &ts->bw_stat[i]);
1008 p.ts.usr_time = cpu_to_le64(ts->usr_time);
1009 p.ts.sys_time = cpu_to_le64(ts->sys_time);
1010 p.ts.ctx = cpu_to_le64(ts->ctx);
1011 p.ts.minf = cpu_to_le64(ts->minf);
1012 p.ts.majf = cpu_to_le64(ts->majf);
1013 p.ts.clat_percentiles = cpu_to_le64(ts->clat_percentiles);
1015 for (i = 0; i < FIO_IO_U_LIST_MAX_LEN; i++) {
1016 fio_fp64_t *src = &ts->percentile_list[i];
1017 fio_fp64_t *dst = &p.ts.percentile_list[i];
1019 dst->u.i = __cpu_to_le64(fio_double_to_uint64(src->u.f));
1022 for (i = 0; i < FIO_IO_U_MAP_NR; i++) {
1023 p.ts.io_u_map[i] = cpu_to_le32(ts->io_u_map[i]);
1024 p.ts.io_u_submit[i] = cpu_to_le32(ts->io_u_submit[i]);
1025 p.ts.io_u_complete[i] = cpu_to_le32(ts->io_u_complete[i]);
1028 for (i = 0; i < FIO_IO_U_LAT_U_NR; i++) {
1029 p.ts.io_u_lat_u[i] = cpu_to_le32(ts->io_u_lat_u[i]);
1030 p.ts.io_u_lat_m[i] = cpu_to_le32(ts->io_u_lat_m[i]);
1033 for (i = 0; i < DDIR_RWDIR_CNT; i++)
1034 for (j = 0; j < FIO_IO_U_PLAT_NR; j++)
1035 p.ts.io_u_plat[i][j] = cpu_to_le32(ts->io_u_plat[i][j]);
1037 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
1038 p.ts.total_io_u[i] = cpu_to_le64(ts->total_io_u[i]);
1039 p.ts.short_io_u[i] = cpu_to_le64(ts->short_io_u[i]);
1042 p.ts.total_submit = cpu_to_le64(ts->total_submit);
1043 p.ts.total_complete = cpu_to_le64(ts->total_complete);
1045 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
1046 p.ts.io_bytes[i] = cpu_to_le64(ts->io_bytes[i]);
1047 p.ts.runtime[i] = cpu_to_le64(ts->runtime[i]);
1050 p.ts.total_run_time = cpu_to_le64(ts->total_run_time);
1051 p.ts.continue_on_error = cpu_to_le16(ts->continue_on_error);
1052 p.ts.total_err_count = cpu_to_le64(ts->total_err_count);
1053 p.ts.first_error = cpu_to_le32(ts->first_error);
1054 p.ts.kb_base = cpu_to_le32(ts->kb_base);
1055 p.ts.unit_base = cpu_to_le32(ts->unit_base);
1057 p.ts.latency_depth = cpu_to_le32(ts->latency_depth);
1058 p.ts.latency_target = cpu_to_le64(ts->latency_target);
1059 p.ts.latency_window = cpu_to_le64(ts->latency_window);
1060 p.ts.latency_percentile.u.i = __cpu_to_le64(fio_double_to_uint64(ts->latency_percentile.u.f));
1062 convert_gs(&p.rs, rs);
1064 fio_net_send_cmd(server_fd, FIO_NET_CMD_TS, &p, sizeof(p), NULL, NULL);
1067 void fio_server_send_gs(struct group_run_stats *rs)
1069 struct group_run_stats gs;
1071 dprint(FD_NET, "server sending group run stats\n");
1073 convert_gs(&gs, rs);
1074 fio_net_send_cmd(server_fd, FIO_NET_CMD_GS, &gs, sizeof(gs), NULL, NULL);
1077 static void convert_agg(struct disk_util_agg *dst, struct disk_util_agg *src)
1081 for (i = 0; i < 2; i++) {
1082 dst->ios[i] = cpu_to_le32(src->ios[i]);
1083 dst->merges[i] = cpu_to_le32(src->merges[i]);
1084 dst->sectors[i] = cpu_to_le64(src->sectors[i]);
1085 dst->ticks[i] = cpu_to_le32(src->ticks[i]);
1088 dst->io_ticks = cpu_to_le32(src->io_ticks);
1089 dst->time_in_queue = cpu_to_le32(src->time_in_queue);
1090 dst->slavecount = cpu_to_le32(src->slavecount);
1091 dst->max_util.u.i = __cpu_to_le64(fio_double_to_uint64(src->max_util.u.f));
1094 static void convert_dus(struct disk_util_stat *dst, struct disk_util_stat *src)
1098 strcpy((char *) dst->name, (char *) src->name);
1100 for (i = 0; i < 2; i++) {
1101 dst->ios[i] = cpu_to_le32(src->ios[i]);
1102 dst->merges[i] = cpu_to_le32(src->merges[i]);
1103 dst->sectors[i] = cpu_to_le64(src->sectors[i]);
1104 dst->ticks[i] = cpu_to_le32(src->ticks[i]);
1107 dst->io_ticks = cpu_to_le32(src->io_ticks);
1108 dst->time_in_queue = cpu_to_le32(src->time_in_queue);
1109 dst->msec = cpu_to_le64(src->msec);
1112 void fio_server_send_du(void)
1114 struct disk_util *du;
1115 struct flist_head *entry;
1116 struct cmd_du_pdu pdu;
1118 dprint(FD_NET, "server: sending disk_util %d\n", !flist_empty(&disk_list));
1120 memset(&pdu, 0, sizeof(pdu));
1122 flist_for_each(entry, &disk_list) {
1123 du = flist_entry(entry, struct disk_util, list);
1125 convert_dus(&pdu.dus, &du->dus);
1126 convert_agg(&pdu.agg, &du->agg);
1128 fio_net_send_cmd(server_fd, FIO_NET_CMD_DU, &pdu, sizeof(pdu), NULL, NULL);
1133 * Send a command with a separate PDU, not inlined in the command
1135 static int fio_send_cmd_ext_pdu(int sk, uint16_t opcode, const void *buf,
1136 off_t size, uint64_t tag, uint32_t flags)
1138 struct fio_net_cmd cmd;
1139 struct iovec iov[2];
1141 iov[0].iov_base = (void *) &cmd;
1142 iov[0].iov_len = sizeof(cmd);
1143 iov[1].iov_base = (void *) buf;
1144 iov[1].iov_len = size;
1146 __fio_init_net_cmd(&cmd, opcode, size, tag);
1147 cmd.flags = __cpu_to_le32(flags);
1148 fio_net_cmd_crc_pdu(&cmd, buf);
1150 return fio_sendv_data(sk, iov, 2);
1153 static int fio_send_iolog_gz(struct cmd_iolog_pdu *pdu, struct io_log *log)
1161 * Dirty - since the log is potentially huge, compress it into
1162 * FIO_SERVER_MAX_FRAGMENT_PDU chunks and let the receiving
1163 * side defragment it.
1165 out_pdu = malloc(FIO_SERVER_MAX_FRAGMENT_PDU);
1167 stream.zalloc = Z_NULL;
1168 stream.zfree = Z_NULL;
1169 stream.opaque = Z_NULL;
1171 if (deflateInit(&stream, Z_DEFAULT_COMPRESSION) != Z_OK) {
1176 stream.next_in = (void *) log->log;
1177 stream.avail_in = log->nr_samples * sizeof(struct io_sample);
1180 unsigned int this_len, flags = 0;
1183 stream.avail_out = FIO_SERVER_MAX_FRAGMENT_PDU;
1184 stream.next_out = out_pdu;
1185 ret = deflate(&stream, Z_FINISH);
1186 /* may be Z_OK, or Z_STREAM_END */
1190 this_len = FIO_SERVER_MAX_FRAGMENT_PDU - stream.avail_out;
1192 if (stream.avail_in)
1193 flags = FIO_NET_CMD_F_MORE;
1195 ret = fio_send_cmd_ext_pdu(server_fd, FIO_NET_CMD_IOLOG,
1196 out_pdu, this_len, 0, flags);
1199 } while (stream.avail_in);
1202 deflateEnd(&stream);
1209 int fio_send_iolog(struct thread_data *td, struct io_log *log, const char *name)
1211 struct cmd_iolog_pdu pdu;
1214 pdu.thread_number = cpu_to_le32(td->thread_number);
1215 pdu.nr_samples = __cpu_to_le32(log->nr_samples);
1216 pdu.log_type = cpu_to_le32(log->log_type);
1217 pdu.compressed = cpu_to_le32(use_zlib);
1218 strcpy((char *) pdu.name, name);
1220 for (i = 0; i < log->nr_samples; i++) {
1221 struct io_sample *s = &log->log[i];
1223 s->time = cpu_to_le64(s->time);
1224 s->val = cpu_to_le64(s->val);
1225 s->ddir = cpu_to_le32(s->ddir);
1226 s->bs = cpu_to_le32(s->bs);
1230 * Send header first, it's not compressed.
1232 ret = fio_send_cmd_ext_pdu(server_fd, FIO_NET_CMD_IOLOG, &pdu,
1233 sizeof(pdu), 0, FIO_NET_CMD_F_MORE);
1238 * Now send actual log, compress if we can, otherwise just plain
1241 return fio_send_iolog_gz(&pdu, log);
1243 return fio_send_cmd_ext_pdu(server_fd, FIO_NET_CMD_IOLOG, log->log,
1244 log->nr_samples * sizeof(struct io_sample), 0, 0);
1247 void fio_server_send_add_job(struct thread_data *td)
1249 struct cmd_add_job_pdu pdu;
1251 memset(&pdu, 0, sizeof(pdu));
1252 pdu.thread_number = cpu_to_le32(td->thread_number);
1253 pdu.groupid = cpu_to_le32(td->groupid);
1254 convert_thread_options_to_net(&pdu.top, &td->o);
1256 fio_net_send_cmd(server_fd, FIO_NET_CMD_ADD_JOB, &pdu, sizeof(pdu), NULL, NULL);
1259 void fio_server_send_start(struct thread_data *td)
1261 assert(server_fd != -1);
1263 fio_net_send_simple_cmd(server_fd, FIO_NET_CMD_SERVER_START, 0, NULL);
1266 static int fio_init_server_ip(void)
1268 struct sockaddr *addr;
1273 sk = socket(AF_INET6, SOCK_STREAM, 0);
1275 sk = socket(AF_INET, SOCK_STREAM, 0);
1278 log_err("fio: socket: %s\n", strerror(errno));
1283 if (setsockopt(sk, SOL_SOCKET, SO_REUSEADDR, (void *)&opt, sizeof(opt)) < 0) {
1284 log_err("fio: setsockopt: %s\n", strerror(errno));
1289 if (setsockopt(sk, SOL_SOCKET, SO_REUSEPORT, &opt, sizeof(opt)) < 0) {
1290 log_err("fio: setsockopt: %s\n", strerror(errno));
1297 addr = (struct sockaddr *) &saddr_in6;
1298 socklen = sizeof(saddr_in6);
1299 saddr_in6.sin6_family = AF_INET6;
1301 addr = (struct sockaddr *) &saddr_in;
1302 socklen = sizeof(saddr_in);
1303 saddr_in.sin_family = AF_INET;
1306 if (bind(sk, addr, socklen) < 0) {
1307 log_err("fio: bind: %s\n", strerror(errno));
1315 static int fio_init_server_sock(void)
1317 struct sockaddr_un addr;
1322 sk = socket(AF_UNIX, SOCK_STREAM, 0);
1324 log_err("fio: socket: %s\n", strerror(errno));
1330 memset(&addr, 0, sizeof(addr));
1331 addr.sun_family = AF_UNIX;
1332 strcpy(addr.sun_path, bind_sock);
1335 len = sizeof(addr.sun_family) + strlen(bind_sock) + 1;
1337 if (bind(sk, (struct sockaddr *) &addr, len) < 0) {
1338 log_err("fio: bind: %s\n", strerror(errno));
1347 static int fio_init_server_connection(void)
1352 dprint(FD_NET, "starting server\n");
1355 sk = fio_init_server_ip();
1357 sk = fio_init_server_sock();
1369 src = &saddr_in6.sin6_addr;
1372 src = &saddr_in.sin_addr;
1375 p = (char *) inet_ntop(af, src, bind_str, sizeof(bind_str));
1377 sprintf(port, ",%u", fio_net_port);
1381 strcpy(bind_str, port);
1383 strcpy(bind_str, bind_sock);
1385 log_info("fio: server listening on %s\n", bind_str);
1387 if (listen(sk, 0) < 0) {
1388 log_err("fio: listen: %s\n", strerror(errno));
1395 int fio_server_parse_host(const char *host, int ipv6, struct in_addr *inp,
1396 struct in6_addr *inp6)
1402 ret = inet_pton(AF_INET6, host, inp6);
1404 ret = inet_pton(AF_INET, host, inp);
1407 struct addrinfo hints, *res;
1409 memset(&hints, 0, sizeof(hints));
1410 hints.ai_family = ipv6 ? AF_INET6 : AF_INET;
1411 hints.ai_socktype = SOCK_STREAM;
1413 ret = getaddrinfo(host, NULL, &hints, &res);
1415 log_err("fio: failed to resolve <%s> (%s)\n", host,
1421 memcpy(inp6, &((struct sockaddr_in6 *) res->ai_addr)->sin6_addr, sizeof(*inp6));
1423 memcpy(inp, &((struct sockaddr_in *) res->ai_addr)->sin_addr, sizeof(*inp));
1433 * Parse a host/ip/port string. Reads from 'str'.
1438 * *ptr is the host, *port is the port, inp is the destination.
1440 * *ptr is the host, *port is the port, inp6 is the dest, and *ipv6 is 1.
1441 * For local domain sockets:
1442 * *ptr is the filename, *is_sock is 1.
1444 int fio_server_parse_string(const char *str, char **ptr, int *is_sock,
1445 int *port, struct in_addr *inp,
1446 struct in6_addr *inp6, int *ipv6)
1448 const char *host = str;
1454 *port = fio_net_port;
1457 if (!strncmp(str, "sock:", 5)) {
1458 *ptr = strdup(str + 5);
1465 * Is it ip:<ip or host>:port
1467 if (!strncmp(host, "ip:", 3))
1469 else if (!strncmp(host, "ip4:", 4))
1471 else if (!strncmp(host, "ip6:", 4)) {
1474 } else if (host[0] == ':') {
1475 /* String is :port */
1478 if (!lport || lport > 65535) {
1479 log_err("fio: bad server port %u\n", lport);
1482 /* no hostname given, we are done */
1488 * If no port seen yet, check if there's a last ':' at the end
1491 portp = strchr(host, ',');
1495 lport = atoi(portp);
1496 if (!lport || lport > 65535) {
1497 log_err("fio: bad server port %u\n", lport);
1509 *ptr = strdup(host);
1511 if (fio_server_parse_host(*ptr, *ipv6, inp, inp6)) {
1518 *port = fio_net_port;
1524 * Server arg should be one of:
1526 * sock:/path/to/socket
1530 * Where sock uses unix domain sockets, and ip binds the server to
1531 * a specific interface. If no arguments are given to the server, it
1532 * uses IP and binds to 0.0.0.0.
1535 static int fio_handle_server_arg(void)
1537 int port = fio_net_port;
1538 int is_sock, ret = 0;
1540 saddr_in.sin_addr.s_addr = htonl(INADDR_ANY);
1542 if (!fio_server_arg)
1545 ret = fio_server_parse_string(fio_server_arg, &bind_sock, &is_sock,
1546 &port, &saddr_in.sin_addr,
1547 &saddr_in6.sin6_addr, &use_ipv6);
1549 if (!is_sock && bind_sock) {
1555 fio_net_port = port;
1556 saddr_in.sin_port = htons(port);
1557 saddr_in6.sin6_port = htons(port);
1561 static int fio_server(void)
1565 dprint(FD_NET, "starting server\n");
1567 if (fio_handle_server_arg())
1570 sk = fio_init_server_connection();
1574 ret = accept_loop(sk);
1578 if (fio_server_arg) {
1579 free(fio_server_arg);
1580 fio_server_arg = NULL;
1588 void fio_server_got_signal(int signal)
1590 if (signal == SIGPIPE)
1593 log_info("\nfio: terminating on signal %d\n", signal);
1598 static int check_existing_pidfile(const char *pidfile)
1605 if (stat(pidfile, &sb))
1608 f = fopen(pidfile, "r");
1612 if (fread(buf, sb.st_size, 1, f) <= 0) {
1619 if (kill(pid, SIGCONT) < 0)
1620 return errno != ESRCH;
1625 static int write_pid(pid_t pid, const char *pidfile)
1629 fpid = fopen(pidfile, "w");
1631 log_err("fio: failed opening pid file %s\n", pidfile);
1635 fprintf(fpid, "%u\n", (unsigned int) pid);
1641 * If pidfile is specified, background us.
1643 int fio_start_server(char *pidfile)
1650 WSAStartup(MAKEWORD(2, 2), &wsd);
1654 return fio_server();
1656 if (check_existing_pidfile(pidfile)) {
1657 log_err("fio: pidfile %s exists and server appears alive\n",
1664 log_err("fio: failed server fork: %s", strerror(errno));
1668 int ret = write_pid(pid, pidfile);
1674 openlog("fio", LOG_NDELAY|LOG_NOWAIT|LOG_PID, LOG_USER);
1676 close(STDIN_FILENO);
1677 close(STDOUT_FILENO);
1678 close(STDERR_FILENO);
1690 void fio_server_set_arg(const char *arg)
1692 fio_server_arg = strdup(arg);