10 #include <sys/socket.h>
14 #include <netinet/in.h>
15 #include <arpa/inet.h>
25 #include "crc/crc16.h"
26 #include "lib/ieee754.h"
28 int fio_net_port = FIO_NET_PORT;
32 static int server_fd = -1;
33 static char *fio_server_arg;
34 static char *bind_sock;
35 static struct sockaddr_in saddr_in;
36 static struct sockaddr_in6 saddr_in6;
39 static unsigned int has_zlib = 1;
41 static unsigned int has_zlib = 0;
43 static unsigned int use_zlib;
45 struct fio_fork_item {
46 struct flist_head list;
53 static const char *fio_server_ops[FIO_NET_CMD_NR] = {
76 const char *fio_server_op(unsigned int op)
80 if (op < FIO_NET_CMD_NR)
81 return fio_server_ops[op];
83 sprintf(buf, "UNKNOWN/%d", op);
87 static ssize_t iov_total_len(const struct iovec *iov, int count)
99 static int fio_sendv_data(int sk, struct iovec *iov, int count)
101 ssize_t total_len = iov_total_len(iov, count);
105 ret = writev(sk, iov, count);
112 if (ret >= iov->iov_len) {
117 iov->iov_base += ret;
123 else if (errno == EAGAIN || errno == EINTR)
127 } while (!exit_backend);
138 int fio_send_data(int sk, const void *p, unsigned int len)
140 struct iovec iov = { .iov_base = (void *) p, .iov_len = len };
142 assert(len <= sizeof(struct fio_net_cmd) + FIO_SERVER_MAX_FRAGMENT_PDU);
144 return fio_sendv_data(sk, &iov, 1);
147 int fio_recv_data(int sk, void *p, unsigned int len)
150 int ret = recv(sk, p, len, MSG_WAITALL);
160 else if (errno == EAGAIN || errno == EINTR)
164 } while (!exit_backend);
172 static int verify_convert_cmd(struct fio_net_cmd *cmd)
176 cmd->cmd_crc16 = le16_to_cpu(cmd->cmd_crc16);
177 cmd->pdu_crc16 = le16_to_cpu(cmd->pdu_crc16);
179 crc = fio_crc16(cmd, FIO_NET_CMD_CRC_SZ);
180 if (crc != cmd->cmd_crc16) {
181 log_err("fio: server bad crc on command (got %x, wanted %x)\n",
182 cmd->cmd_crc16, crc);
186 cmd->version = le16_to_cpu(cmd->version);
187 cmd->opcode = le16_to_cpu(cmd->opcode);
188 cmd->flags = le32_to_cpu(cmd->flags);
189 cmd->tag = le64_to_cpu(cmd->tag);
190 cmd->pdu_len = le32_to_cpu(cmd->pdu_len);
192 switch (cmd->version) {
196 log_err("fio: bad server cmd version %d\n", cmd->version);
200 if (cmd->pdu_len > FIO_SERVER_MAX_FRAGMENT_PDU) {
201 log_err("fio: command payload too large: %u\n", cmd->pdu_len);
209 * Read (and defragment, if necessary) incoming commands
211 struct fio_net_cmd *fio_net_recv_cmd(int sk)
213 struct fio_net_cmd cmd, *tmp, *cmdret = NULL;
214 size_t cmd_size = 0, pdu_offset = 0;
220 ret = fio_recv_data(sk, &cmd, sizeof(cmd));
224 /* We have a command, verify it and swap if need be */
225 ret = verify_convert_cmd(&cmd);
230 /* if this is text, add room for \0 at the end */
231 cmd_size = sizeof(cmd) + cmd.pdu_len + 1;
234 cmd_size += cmd.pdu_len;
236 if (cmd_size / 1024 > FIO_SERVER_MAX_CMD_MB * 1024) {
237 log_err("fio: cmd+pdu too large (%llu)\n", (unsigned long long) cmd_size);
242 tmp = realloc(cmdret, cmd_size);
244 log_err("fio: server failed allocating cmd\n");
251 memcpy(cmdret, &cmd, sizeof(cmd));
252 else if (cmdret->opcode != cmd.opcode) {
253 log_err("fio: fragment opcode mismatch (%d != %d)\n",
254 cmdret->opcode, cmd.opcode);
262 /* There's payload, get it */
263 pdu = (void *) cmdret->payload + pdu_offset;
264 ret = fio_recv_data(sk, pdu, cmd.pdu_len);
268 /* Verify payload crc */
269 crc = fio_crc16(pdu, cmd.pdu_len);
270 if (crc != cmd.pdu_crc16) {
271 log_err("fio: server bad crc on payload ");
272 log_err("(got %x, wanted %x)\n", cmd.pdu_crc16, crc);
277 pdu_offset += cmd.pdu_len;
279 cmdret->pdu_len += cmd.pdu_len;
281 } while (cmd.flags & FIO_NET_CMD_F_MORE);
287 /* zero-terminate text input */
288 if (cmdret->pdu_len) {
289 if (cmdret->opcode == FIO_NET_CMD_TEXT) {
290 struct cmd_text_pdu *pdu = (struct cmd_text_pdu *) cmdret->payload;
291 char *buf = (char *) pdu->buf;
293 buf[pdu->buf_len] = '\0';
294 } else if (cmdret->opcode == FIO_NET_CMD_JOB) {
295 struct cmd_job_pdu *pdu = (struct cmd_job_pdu *) cmdret->payload;
296 char *buf = (char *) pdu->buf;
297 int len = le32_to_cpu(pdu->buf_len);
303 /* frag flag is internal */
304 cmdret->flags &= ~FIO_NET_CMD_F_MORE;
310 static void add_reply(uint64_t tag, struct flist_head *list)
312 struct fio_net_cmd_reply *reply;
314 reply = (struct fio_net_cmd_reply *) (uintptr_t) tag;
315 flist_add_tail(&reply->list, list);
318 static uint64_t alloc_reply(uint64_t tag, uint16_t opcode)
320 struct fio_net_cmd_reply *reply;
322 reply = calloc(1, sizeof(*reply));
323 INIT_FLIST_HEAD(&reply->list);
324 gettimeofday(&reply->tv, NULL);
325 reply->saved_tag = tag;
326 reply->opcode = opcode;
328 return (uintptr_t) reply;
331 static void free_reply(uint64_t tag)
333 struct fio_net_cmd_reply *reply;
335 reply = (struct fio_net_cmd_reply *) (uintptr_t) tag;
339 void fio_net_cmd_crc_pdu(struct fio_net_cmd *cmd, const void *pdu)
343 cmd->cmd_crc16 = __cpu_to_le16(fio_crc16(cmd, FIO_NET_CMD_CRC_SZ));
345 pdu_len = le32_to_cpu(cmd->pdu_len);
346 cmd->pdu_crc16 = __cpu_to_le16(fio_crc16(pdu, pdu_len));
349 void fio_net_cmd_crc(struct fio_net_cmd *cmd)
351 fio_net_cmd_crc_pdu(cmd, cmd->payload);
354 int fio_net_send_cmd(int fd, uint16_t opcode, const void *buf, off_t size,
355 uint64_t *tagptr, struct flist_head *list)
357 struct fio_net_cmd *cmd = NULL;
358 size_t this_len, cur_len = 0;
364 tag = *tagptr = alloc_reply(*tagptr, opcode);
366 tag = tagptr ? *tagptr : 0;
370 if (this_len > FIO_SERVER_MAX_FRAGMENT_PDU)
371 this_len = FIO_SERVER_MAX_FRAGMENT_PDU;
373 if (!cmd || cur_len < sizeof(*cmd) + this_len) {
377 cur_len = sizeof(*cmd) + this_len;
378 cmd = malloc(cur_len);
381 fio_init_net_cmd(cmd, opcode, buf, this_len, tag);
384 cmd->flags = __cpu_to_le32(FIO_NET_CMD_F_MORE);
386 fio_net_cmd_crc(cmd);
388 ret = fio_send_data(fd, cmd, sizeof(*cmd) + this_len);
391 } while (!ret && size);
397 add_reply(tag, list);
406 static int fio_net_send_simple_stack_cmd(int sk, uint16_t opcode, uint64_t tag)
408 struct fio_net_cmd cmd;
410 fio_init_net_cmd(&cmd, opcode, NULL, 0, tag);
411 fio_net_cmd_crc(&cmd);
413 return fio_send_data(sk, &cmd, sizeof(cmd));
417 * If 'list' is non-NULL, then allocate and store the sent command for
418 * later verification.
420 int fio_net_send_simple_cmd(int sk, uint16_t opcode, uint64_t tag,
421 struct flist_head *list)
426 tag = alloc_reply(tag, opcode);
428 ret = fio_net_send_simple_stack_cmd(sk, opcode, tag);
437 add_reply(tag, list);
442 int fio_net_send_quit(int sk)
444 dprint(FD_NET, "server: sending quit\n");
446 return fio_net_send_simple_cmd(sk, FIO_NET_CMD_QUIT, 0, NULL);
449 static int fio_net_send_ack(int sk, struct fio_net_cmd *cmd, int error,
452 struct cmd_end_pdu epdu;
458 epdu.error = __cpu_to_le32(error);
459 epdu.signal = __cpu_to_le32(signal);
460 return fio_net_send_cmd(sk, FIO_NET_CMD_STOP, &epdu, sizeof(epdu), &tag, NULL);
463 int fio_net_send_stop(int sk, int error, int signal)
465 dprint(FD_NET, "server: sending stop (%d, %d)\n", error, signal);
466 return fio_net_send_ack(sk, NULL, error, signal);
469 static void fio_server_add_fork_item(pid_t pid, struct flist_head *list)
471 struct fio_fork_item *ffi;
473 ffi = malloc(sizeof(*ffi));
478 flist_add_tail(&ffi->list, list);
481 static void fio_server_add_conn_pid(struct flist_head *conn_list, pid_t pid)
483 dprint(FD_NET, "server: forked off connection job (pid=%u)\n", (int) pid);
484 fio_server_add_fork_item(pid, conn_list);
487 static void fio_server_add_job_pid(struct flist_head *job_list, pid_t pid)
489 dprint(FD_NET, "server: forked off job job (pid=%u)\n", (int) pid);
490 fio_server_add_fork_item(pid, job_list);
493 static void fio_server_check_fork_item(struct fio_fork_item *ffi)
497 ret = waitpid(ffi->pid, &status, WNOHANG);
499 if (errno == ECHILD) {
500 log_err("fio: connection pid %u disappeared\n", (int) ffi->pid);
503 log_err("fio: waitpid: %s\n", strerror(errno));
504 } else if (ret == ffi->pid) {
505 if (WIFSIGNALED(status)) {
506 ffi->signal = WTERMSIG(status);
509 if (WIFEXITED(status)) {
510 if (WEXITSTATUS(status))
511 ffi->exitval = WEXITSTATUS(status);
517 static void fio_server_fork_item_done(struct fio_fork_item *ffi)
519 dprint(FD_NET, "pid %u exited, sig=%u, exitval=%d\n", (int) ffi->pid, ffi->signal, ffi->exitval);
522 * Fold STOP and QUIT...
524 fio_net_send_stop(server_fd, ffi->exitval, ffi->signal);
525 fio_net_send_quit(server_fd);
526 flist_del(&ffi->list);
530 static void fio_server_check_fork_items(struct flist_head *list)
532 struct flist_head *entry, *tmp;
533 struct fio_fork_item *ffi;
535 flist_for_each_safe(entry, tmp, list) {
536 ffi = flist_entry(entry, struct fio_fork_item, list);
538 fio_server_check_fork_item(ffi);
541 fio_server_fork_item_done(ffi);
545 static void fio_server_check_jobs(struct flist_head *job_list)
547 fio_server_check_fork_items(job_list);
550 static void fio_server_check_conns(struct flist_head *conn_list)
552 fio_server_check_fork_items(conn_list);
555 static int handle_load_file_cmd(struct fio_net_cmd *cmd)
557 struct cmd_load_file_pdu *pdu = (struct cmd_load_file_pdu *) cmd->payload;
558 void *file_name = pdu->file;
559 struct cmd_start_pdu spdu;
561 dprint(FD_NET, "server: loading local file %s\n", (char *) file_name);
563 pdu->name_len = le16_to_cpu(pdu->name_len);
564 pdu->client_type = le16_to_cpu(pdu->client_type);
566 if (parse_jobs_ini(file_name, 0, 0, pdu->client_type)) {
567 fio_net_send_quit(server_fd);
571 spdu.jobs = cpu_to_le32(thread_number);
572 spdu.stat_outputs = cpu_to_le32(stat_number);
573 fio_net_send_cmd(server_fd, FIO_NET_CMD_START, &spdu, sizeof(spdu), NULL, NULL);
577 static int handle_run_cmd(struct flist_head *job_list, struct fio_net_cmd *cmd)
587 fio_server_add_job_pid(job_list, pid);
596 static int handle_job_cmd(struct fio_net_cmd *cmd)
598 struct cmd_job_pdu *pdu = (struct cmd_job_pdu *) cmd->payload;
599 void *buf = pdu->buf;
600 struct cmd_start_pdu spdu;
602 pdu->buf_len = le32_to_cpu(pdu->buf_len);
603 pdu->client_type = le32_to_cpu(pdu->client_type);
605 if (parse_jobs_ini(buf, 1, 0, pdu->client_type)) {
606 fio_net_send_quit(server_fd);
610 spdu.jobs = cpu_to_le32(thread_number);
611 spdu.stat_outputs = cpu_to_le32(stat_number);
612 fio_net_send_cmd(server_fd, FIO_NET_CMD_START, &spdu, sizeof(spdu), NULL, NULL);
616 static int handle_jobline_cmd(struct fio_net_cmd *cmd)
618 void *pdu = cmd->payload;
619 struct cmd_single_line_pdu *cslp;
620 struct cmd_line_pdu *clp;
621 unsigned long offset;
622 struct cmd_start_pdu spdu;
627 clp->lines = le16_to_cpu(clp->lines);
628 clp->client_type = le16_to_cpu(clp->client_type);
629 argv = malloc(clp->lines * sizeof(char *));
630 offset = sizeof(*clp);
632 dprint(FD_NET, "server: %d command line args\n", clp->lines);
634 for (i = 0; i < clp->lines; i++) {
636 argv[i] = (char *) cslp->text;
638 offset += sizeof(*cslp) + le16_to_cpu(cslp->len);
639 dprint(FD_NET, "server: %d: %s\n", i, argv[i]);
642 if (parse_cmd_line(clp->lines, argv, clp->client_type)) {
643 fio_net_send_quit(server_fd);
650 spdu.jobs = cpu_to_le32(thread_number);
651 spdu.stat_outputs = cpu_to_le32(stat_number);
652 fio_net_send_cmd(server_fd, FIO_NET_CMD_START, &spdu, sizeof(spdu), NULL, NULL);
656 static int handle_probe_cmd(struct fio_net_cmd *cmd)
658 struct cmd_client_probe_pdu *pdu = (struct cmd_client_probe_pdu *) cmd->payload;
659 struct cmd_probe_reply_pdu probe;
660 uint64_t tag = cmd->tag;
662 dprint(FD_NET, "server: sending probe reply\n");
664 memset(&probe, 0, sizeof(probe));
665 gethostname((char *) probe.hostname, sizeof(probe.hostname));
666 #ifdef CONFIG_BIG_ENDIAN
669 strncpy((char *) probe.fio_version, fio_version_string, sizeof(probe.fio_version));
672 probe.arch = FIO_ARCH;
673 probe.bpp = sizeof(void *);
674 probe.cpus = __cpu_to_le32(cpus_online());
677 * If the client supports compression and we do too, then enable it
679 if (has_zlib && le64_to_cpu(pdu->flags) & FIO_PROBE_FLAG_ZLIB) {
680 probe.flags = __cpu_to_le64(FIO_PROBE_FLAG_ZLIB);
687 return fio_net_send_cmd(server_fd, FIO_NET_CMD_PROBE, &probe, sizeof(probe), &tag, NULL);
690 static int handle_send_eta_cmd(struct fio_net_cmd *cmd)
693 uint64_t tag = cmd->tag;
697 je = get_jobs_eta(1, &size);
701 dprint(FD_NET, "server sending status\n");
703 je->nr_running = cpu_to_le32(je->nr_running);
704 je->nr_ramp = cpu_to_le32(je->nr_ramp);
705 je->nr_pending = cpu_to_le32(je->nr_pending);
706 je->nr_setting_up = cpu_to_le32(je->nr_setting_up);
707 je->files_open = cpu_to_le32(je->files_open);
709 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
710 je->m_rate[i] = cpu_to_le32(je->m_rate[i]);
711 je->t_rate[i] = cpu_to_le32(je->t_rate[i]);
712 je->m_iops[i] = cpu_to_le32(je->m_iops[i]);
713 je->t_iops[i] = cpu_to_le32(je->t_iops[i]);
714 je->rate[i] = cpu_to_le32(je->rate[i]);
715 je->iops[i] = cpu_to_le32(je->iops[i]);
718 je->elapsed_sec = cpu_to_le64(je->elapsed_sec);
719 je->eta_sec = cpu_to_le64(je->eta_sec);
720 je->nr_threads = cpu_to_le32(je->nr_threads);
721 je->is_pow2 = cpu_to_le32(je->is_pow2);
722 je->unit_base = cpu_to_le32(je->unit_base);
724 fio_net_send_cmd(server_fd, FIO_NET_CMD_ETA, je, size, &tag, NULL);
729 static int send_update_job_reply(int fd, uint64_t __tag, int error)
731 uint64_t tag = __tag;
734 pdu_error = __cpu_to_le32(error);
735 return fio_net_send_cmd(fd, FIO_NET_CMD_UPDATE_JOB, &pdu_error, sizeof(pdu_error), &tag, NULL);
738 static int handle_update_job_cmd(struct fio_net_cmd *cmd)
740 struct cmd_add_job_pdu *pdu = (struct cmd_add_job_pdu *) cmd->payload;
741 struct thread_data *td;
744 tnumber = le32_to_cpu(pdu->thread_number);
746 dprint(FD_NET, "server: updating options for job %u\n", tnumber);
748 if (!tnumber || tnumber > thread_number) {
749 send_update_job_reply(server_fd, cmd->tag, ENODEV);
753 td = &threads[tnumber - 1];
754 convert_thread_options_to_cpu(&td->o, &pdu->top);
755 send_update_job_reply(server_fd, cmd->tag, 0);
759 static int handle_command(struct flist_head *job_list, struct fio_net_cmd *cmd)
763 dprint(FD_NET, "server: got op [%s], pdu=%u, tag=%llx\n",
764 fio_server_op(cmd->opcode), cmd->pdu_len,
765 (unsigned long long) cmd->tag);
767 switch (cmd->opcode) {
768 case FIO_NET_CMD_QUIT:
769 fio_terminate_threads(TERMINATE_ALL);
771 case FIO_NET_CMD_EXIT:
774 case FIO_NET_CMD_LOAD_FILE:
775 ret = handle_load_file_cmd(cmd);
777 case FIO_NET_CMD_JOB:
778 ret = handle_job_cmd(cmd);
780 case FIO_NET_CMD_JOBLINE:
781 ret = handle_jobline_cmd(cmd);
783 case FIO_NET_CMD_PROBE:
784 ret = handle_probe_cmd(cmd);
786 case FIO_NET_CMD_SEND_ETA:
787 ret = handle_send_eta_cmd(cmd);
789 case FIO_NET_CMD_RUN:
790 ret = handle_run_cmd(job_list, cmd);
792 case FIO_NET_CMD_UPDATE_JOB:
793 ret = handle_update_job_cmd(cmd);
796 log_err("fio: unknown opcode: %s\n", fio_server_op(cmd->opcode));
803 static int handle_connection(int sk)
805 struct fio_net_cmd *cmd = NULL;
806 FLIST_HEAD(job_list);
813 while (!exit_backend) {
814 struct pollfd pfd = {
823 if (!flist_empty(&job_list))
826 ret = poll(&pfd, 1, timeout);
830 log_err("fio: poll: %s\n", strerror(errno));
833 fio_server_check_jobs(&job_list);
837 if (pfd.revents & POLLIN)
839 if (pfd.revents & (POLLERR|POLLHUP)) {
843 } while (!exit_backend);
845 fio_server_check_jobs(&job_list);
850 cmd = fio_net_recv_cmd(sk);
856 ret = handle_command(&job_list, cmd);
871 static int accept_loop(int listen_sk)
873 struct sockaddr_in addr;
874 struct sockaddr_in6 addr6;
875 socklen_t len = use_ipv6 ? sizeof(addr6) : sizeof(addr);
877 int ret = 0, sk, exitval = 0;
878 FLIST_HEAD(conn_list);
880 dprint(FD_NET, "server enter accept loop\n");
882 fio_set_fd_nonblocking(listen_sk, "server");
884 while (!exit_backend) {
894 if (!flist_empty(&conn_list))
897 ret = poll(&pfd, 1, timeout);
901 log_err("fio: poll: %s\n", strerror(errno));
904 fio_server_check_conns(&conn_list);
908 if (pfd.revents & POLLIN)
910 } while (!exit_backend);
912 fio_server_check_conns(&conn_list);
914 if (exit_backend || ret < 0)
918 sk = accept(listen_sk, (struct sockaddr *) &addr6, &len);
920 sk = accept(listen_sk, (struct sockaddr *) &addr, &len);
923 log_err("fio: accept: %s\n", strerror(errno));
928 from = inet_ntop(AF_INET6, (struct sockaddr *) &addr6.sin6_addr, buf, sizeof(buf));
930 from = inet_ntop(AF_INET, (struct sockaddr *) &addr.sin_addr, buf, sizeof(buf));
932 dprint(FD_NET, "server: connect from %s\n", from);
937 fio_server_add_conn_pid(&conn_list, pid);
942 handle_connection(sk);
948 int fio_server_text_output(int level, const char *buf, size_t len)
950 struct cmd_text_pdu *pdu;
955 return log_local_buf(buf, len);
957 tlen = sizeof(*pdu) + len;
960 pdu->level = __cpu_to_le32(level);
961 pdu->buf_len = __cpu_to_le32(len);
963 gettimeofday(&tv, NULL);
964 pdu->log_sec = __cpu_to_le64(tv.tv_sec);
965 pdu->log_usec = __cpu_to_le64(tv.tv_usec);
967 memcpy(pdu->buf, buf, len);
969 fio_net_send_cmd(server_fd, FIO_NET_CMD_TEXT, pdu, tlen, NULL, NULL);
974 static void convert_io_stat(struct io_stat *dst, struct io_stat *src)
976 dst->max_val = cpu_to_le64(src->max_val);
977 dst->min_val = cpu_to_le64(src->min_val);
978 dst->samples = cpu_to_le64(src->samples);
981 * Encode to IEEE 754 for network transfer
983 dst->mean.u.i = __cpu_to_le64(fio_double_to_uint64(src->mean.u.f));
984 dst->S.u.i = __cpu_to_le64(fio_double_to_uint64(src->S.u.f));
987 static void convert_gs(struct group_run_stats *dst, struct group_run_stats *src)
991 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
992 dst->max_run[i] = cpu_to_le64(src->max_run[i]);
993 dst->min_run[i] = cpu_to_le64(src->min_run[i]);
994 dst->max_bw[i] = cpu_to_le64(src->max_bw[i]);
995 dst->min_bw[i] = cpu_to_le64(src->min_bw[i]);
996 dst->io_kb[i] = cpu_to_le64(src->io_kb[i]);
997 dst->agg[i] = cpu_to_le64(src->agg[i]);
1000 dst->kb_base = cpu_to_le32(src->kb_base);
1001 dst->unit_base = cpu_to_le32(src->unit_base);
1002 dst->groupid = cpu_to_le32(src->groupid);
1003 dst->unified_rw_rep = cpu_to_le32(src->unified_rw_rep);
1007 * Send a CMD_TS, which packs struct thread_stat and group_run_stats
1008 * into a single payload.
1010 void fio_server_send_ts(struct thread_stat *ts, struct group_run_stats *rs)
1012 struct cmd_ts_pdu p;
1015 dprint(FD_NET, "server sending end stats\n");
1017 memset(&p, 0, sizeof(p));
1019 strncpy(p.ts.name, ts->name, FIO_JOBNAME_SIZE - 1);
1020 strncpy(p.ts.verror, ts->verror, FIO_VERROR_SIZE - 1);
1021 strncpy(p.ts.description, ts->description, FIO_JOBDESC_SIZE - 1);
1023 p.ts.error = cpu_to_le32(ts->error);
1024 p.ts.thread_number = cpu_to_le32(ts->thread_number);
1025 p.ts.groupid = cpu_to_le32(ts->groupid);
1026 p.ts.pid = cpu_to_le32(ts->pid);
1027 p.ts.members = cpu_to_le32(ts->members);
1028 p.ts.unified_rw_rep = cpu_to_le32(ts->unified_rw_rep);
1030 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
1031 convert_io_stat(&p.ts.clat_stat[i], &ts->clat_stat[i]);
1032 convert_io_stat(&p.ts.slat_stat[i], &ts->slat_stat[i]);
1033 convert_io_stat(&p.ts.lat_stat[i], &ts->lat_stat[i]);
1034 convert_io_stat(&p.ts.bw_stat[i], &ts->bw_stat[i]);
1037 p.ts.usr_time = cpu_to_le64(ts->usr_time);
1038 p.ts.sys_time = cpu_to_le64(ts->sys_time);
1039 p.ts.ctx = cpu_to_le64(ts->ctx);
1040 p.ts.minf = cpu_to_le64(ts->minf);
1041 p.ts.majf = cpu_to_le64(ts->majf);
1042 p.ts.clat_percentiles = cpu_to_le64(ts->clat_percentiles);
1044 for (i = 0; i < FIO_IO_U_LIST_MAX_LEN; i++) {
1045 fio_fp64_t *src = &ts->percentile_list[i];
1046 fio_fp64_t *dst = &p.ts.percentile_list[i];
1048 dst->u.i = __cpu_to_le64(fio_double_to_uint64(src->u.f));
1051 for (i = 0; i < FIO_IO_U_MAP_NR; i++) {
1052 p.ts.io_u_map[i] = cpu_to_le32(ts->io_u_map[i]);
1053 p.ts.io_u_submit[i] = cpu_to_le32(ts->io_u_submit[i]);
1054 p.ts.io_u_complete[i] = cpu_to_le32(ts->io_u_complete[i]);
1057 for (i = 0; i < FIO_IO_U_LAT_U_NR; i++) {
1058 p.ts.io_u_lat_u[i] = cpu_to_le32(ts->io_u_lat_u[i]);
1059 p.ts.io_u_lat_m[i] = cpu_to_le32(ts->io_u_lat_m[i]);
1062 for (i = 0; i < DDIR_RWDIR_CNT; i++)
1063 for (j = 0; j < FIO_IO_U_PLAT_NR; j++)
1064 p.ts.io_u_plat[i][j] = cpu_to_le32(ts->io_u_plat[i][j]);
1066 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
1067 p.ts.total_io_u[i] = cpu_to_le64(ts->total_io_u[i]);
1068 p.ts.short_io_u[i] = cpu_to_le64(ts->short_io_u[i]);
1071 p.ts.total_submit = cpu_to_le64(ts->total_submit);
1072 p.ts.total_complete = cpu_to_le64(ts->total_complete);
1074 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
1075 p.ts.io_bytes[i] = cpu_to_le64(ts->io_bytes[i]);
1076 p.ts.runtime[i] = cpu_to_le64(ts->runtime[i]);
1079 p.ts.total_run_time = cpu_to_le64(ts->total_run_time);
1080 p.ts.continue_on_error = cpu_to_le16(ts->continue_on_error);
1081 p.ts.total_err_count = cpu_to_le64(ts->total_err_count);
1082 p.ts.first_error = cpu_to_le32(ts->first_error);
1083 p.ts.kb_base = cpu_to_le32(ts->kb_base);
1084 p.ts.unit_base = cpu_to_le32(ts->unit_base);
1086 p.ts.latency_depth = cpu_to_le32(ts->latency_depth);
1087 p.ts.latency_target = cpu_to_le64(ts->latency_target);
1088 p.ts.latency_window = cpu_to_le64(ts->latency_window);
1089 p.ts.latency_percentile.u.i = __cpu_to_le64(fio_double_to_uint64(ts->latency_percentile.u.f));
1091 convert_gs(&p.rs, rs);
1093 fio_net_send_cmd(server_fd, FIO_NET_CMD_TS, &p, sizeof(p), NULL, NULL);
1096 void fio_server_send_gs(struct group_run_stats *rs)
1098 struct group_run_stats gs;
1100 dprint(FD_NET, "server sending group run stats\n");
1102 convert_gs(&gs, rs);
1103 fio_net_send_cmd(server_fd, FIO_NET_CMD_GS, &gs, sizeof(gs), NULL, NULL);
1106 static void convert_agg(struct disk_util_agg *dst, struct disk_util_agg *src)
1110 for (i = 0; i < 2; i++) {
1111 dst->ios[i] = cpu_to_le32(src->ios[i]);
1112 dst->merges[i] = cpu_to_le32(src->merges[i]);
1113 dst->sectors[i] = cpu_to_le64(src->sectors[i]);
1114 dst->ticks[i] = cpu_to_le32(src->ticks[i]);
1117 dst->io_ticks = cpu_to_le32(src->io_ticks);
1118 dst->time_in_queue = cpu_to_le32(src->time_in_queue);
1119 dst->slavecount = cpu_to_le32(src->slavecount);
1120 dst->max_util.u.i = __cpu_to_le64(fio_double_to_uint64(src->max_util.u.f));
1123 static void convert_dus(struct disk_util_stat *dst, struct disk_util_stat *src)
1127 dst->name[FIO_DU_NAME_SZ - 1] = '\0';
1128 strncpy((char *) dst->name, (char *) src->name, FIO_DU_NAME_SZ - 1);
1130 for (i = 0; i < 2; i++) {
1131 dst->s.ios[i] = cpu_to_le32(src->s.ios[i]);
1132 dst->s.merges[i] = cpu_to_le32(src->s.merges[i]);
1133 dst->s.sectors[i] = cpu_to_le64(src->s.sectors[i]);
1134 dst->s.ticks[i] = cpu_to_le32(src->s.ticks[i]);
1137 dst->s.io_ticks = cpu_to_le32(src->s.io_ticks);
1138 dst->s.time_in_queue = cpu_to_le32(src->s.time_in_queue);
1139 dst->s.msec = cpu_to_le64(src->s.msec);
1142 void fio_server_send_du(void)
1144 struct disk_util *du;
1145 struct flist_head *entry;
1146 struct cmd_du_pdu pdu;
1148 dprint(FD_NET, "server: sending disk_util %d\n", !flist_empty(&disk_list));
1150 memset(&pdu, 0, sizeof(pdu));
1152 flist_for_each(entry, &disk_list) {
1153 du = flist_entry(entry, struct disk_util, list);
1155 convert_dus(&pdu.dus, &du->dus);
1156 convert_agg(&pdu.agg, &du->agg);
1158 fio_net_send_cmd(server_fd, FIO_NET_CMD_DU, &pdu, sizeof(pdu), NULL, NULL);
1163 * Send a command with a separate PDU, not inlined in the command
1165 static int fio_send_cmd_ext_pdu(int sk, uint16_t opcode, const void *buf,
1166 off_t size, uint64_t tag, uint32_t flags)
1168 struct fio_net_cmd cmd;
1169 struct iovec iov[2];
1171 iov[0].iov_base = (void *) &cmd;
1172 iov[0].iov_len = sizeof(cmd);
1173 iov[1].iov_base = (void *) buf;
1174 iov[1].iov_len = size;
1176 __fio_init_net_cmd(&cmd, opcode, size, tag);
1177 cmd.flags = __cpu_to_le32(flags);
1178 fio_net_cmd_crc_pdu(&cmd, buf);
1180 return fio_sendv_data(sk, iov, 2);
1183 static int fio_send_iolog_gz(struct cmd_iolog_pdu *pdu, struct io_log *log)
1191 * Dirty - since the log is potentially huge, compress it into
1192 * FIO_SERVER_MAX_FRAGMENT_PDU chunks and let the receiving
1193 * side defragment it.
1195 out_pdu = malloc(FIO_SERVER_MAX_FRAGMENT_PDU);
1197 stream.zalloc = Z_NULL;
1198 stream.zfree = Z_NULL;
1199 stream.opaque = Z_NULL;
1201 if (deflateInit(&stream, Z_DEFAULT_COMPRESSION) != Z_OK) {
1206 stream.next_in = (void *) log->log;
1207 stream.avail_in = log->nr_samples * log_entry_sz(log);
1210 unsigned int this_len, flags = 0;
1213 stream.avail_out = FIO_SERVER_MAX_FRAGMENT_PDU;
1214 stream.next_out = out_pdu;
1215 ret = deflate(&stream, Z_FINISH);
1216 /* may be Z_OK, or Z_STREAM_END */
1220 this_len = FIO_SERVER_MAX_FRAGMENT_PDU - stream.avail_out;
1222 if (stream.avail_in)
1223 flags = FIO_NET_CMD_F_MORE;
1225 ret = fio_send_cmd_ext_pdu(server_fd, FIO_NET_CMD_IOLOG,
1226 out_pdu, this_len, 0, flags);
1229 } while (stream.avail_in);
1232 deflateEnd(&stream);
1239 int fio_send_iolog(struct thread_data *td, struct io_log *log, const char *name)
1241 struct cmd_iolog_pdu pdu;
1244 pdu.nr_samples = cpu_to_le64(log->nr_samples);
1245 pdu.thread_number = cpu_to_le32(td->thread_number);
1246 pdu.log_type = cpu_to_le32(log->log_type);
1247 pdu.compressed = cpu_to_le32(use_zlib);
1249 strncpy((char *) pdu.name, name, FIO_NET_NAME_MAX);
1250 pdu.name[FIO_NET_NAME_MAX - 1] = '\0';
1252 for (i = 0; i < log->nr_samples; i++) {
1253 struct io_sample *s = get_sample(log, i);
1255 s->time = cpu_to_le64(s->time);
1256 s->val = cpu_to_le64(s->val);
1257 s->__ddir = cpu_to_le32(s->__ddir);
1258 s->bs = cpu_to_le32(s->bs);
1260 if (log->log_offset) {
1261 struct io_sample_offset *so = (void *) s;
1263 so->offset = cpu_to_le64(so->offset);
1268 * Send header first, it's not compressed.
1270 ret = fio_send_cmd_ext_pdu(server_fd, FIO_NET_CMD_IOLOG, &pdu,
1271 sizeof(pdu), 0, FIO_NET_CMD_F_MORE);
1276 * Now send actual log, compress if we can, otherwise just plain
1279 return fio_send_iolog_gz(&pdu, log);
1281 return fio_send_cmd_ext_pdu(server_fd, FIO_NET_CMD_IOLOG, log->log,
1282 log->nr_samples * log_entry_sz(log), 0, 0);
1285 void fio_server_send_add_job(struct thread_data *td)
1287 struct cmd_add_job_pdu pdu;
1289 memset(&pdu, 0, sizeof(pdu));
1290 pdu.thread_number = cpu_to_le32(td->thread_number);
1291 pdu.groupid = cpu_to_le32(td->groupid);
1292 convert_thread_options_to_net(&pdu.top, &td->o);
1294 fio_net_send_cmd(server_fd, FIO_NET_CMD_ADD_JOB, &pdu, sizeof(pdu), NULL, NULL);
1297 void fio_server_send_start(struct thread_data *td)
1299 assert(server_fd != -1);
1301 fio_net_send_simple_cmd(server_fd, FIO_NET_CMD_SERVER_START, 0, NULL);
1304 static int fio_init_server_ip(void)
1306 struct sockaddr *addr;
1313 sk = socket(AF_INET6, SOCK_STREAM, 0);
1315 sk = socket(AF_INET, SOCK_STREAM, 0);
1318 log_err("fio: socket: %s\n", strerror(errno));
1323 if (setsockopt(sk, SOL_SOCKET, SO_REUSEADDR, (void *)&opt, sizeof(opt)) < 0) {
1324 log_err("fio: setsockopt: %s\n", strerror(errno));
1329 if (setsockopt(sk, SOL_SOCKET, SO_REUSEPORT, &opt, sizeof(opt)) < 0) {
1330 log_err("fio: setsockopt: %s\n", strerror(errno));
1337 const void *src = &saddr_in6.sin6_addr;
1339 addr = (struct sockaddr *) &saddr_in6;
1340 socklen = sizeof(saddr_in6);
1341 saddr_in6.sin6_family = AF_INET6;
1342 str = inet_ntop(AF_INET6, src, buf, sizeof(buf));
1344 const void *src = &saddr_in.sin_addr;
1346 addr = (struct sockaddr *) &saddr_in;
1347 socklen = sizeof(saddr_in);
1348 saddr_in.sin_family = AF_INET;
1349 str = inet_ntop(AF_INET, src, buf, sizeof(buf));
1352 if (bind(sk, addr, socklen) < 0) {
1353 log_err("fio: bind: %s\n", strerror(errno));
1354 log_info("fio: failed with IPv%c %s\n", use_ipv6 ? '6' : '4', str);
1362 static int fio_init_server_sock(void)
1364 struct sockaddr_un addr;
1369 sk = socket(AF_UNIX, SOCK_STREAM, 0);
1371 log_err("fio: socket: %s\n", strerror(errno));
1377 memset(&addr, 0, sizeof(addr));
1378 addr.sun_family = AF_UNIX;
1379 strncpy(addr.sun_path, bind_sock, sizeof(addr.sun_path) - 1);
1381 len = sizeof(addr.sun_family) + strlen(bind_sock) + 1;
1383 if (bind(sk, (struct sockaddr *) &addr, len) < 0) {
1384 log_err("fio: bind: %s\n", strerror(errno));
1393 static int fio_init_server_connection(void)
1398 dprint(FD_NET, "starting server\n");
1401 sk = fio_init_server_ip();
1403 sk = fio_init_server_sock();
1408 memset(bind_str, 0, sizeof(bind_str));
1417 src = &saddr_in6.sin6_addr;
1420 src = &saddr_in.sin_addr;
1423 p = (char *) inet_ntop(af, src, bind_str, sizeof(bind_str));
1425 sprintf(port, ",%u", fio_net_port);
1429 strncpy(bind_str, port, sizeof(bind_str) - 1);
1431 strncpy(bind_str, bind_sock, sizeof(bind_str) - 1);
1433 log_info("fio: server listening on %s\n", bind_str);
1435 if (listen(sk, 0) < 0) {
1436 log_err("fio: listen: %s\n", strerror(errno));
1444 int fio_server_parse_host(const char *host, int ipv6, struct in_addr *inp,
1445 struct in6_addr *inp6)
1451 ret = inet_pton(AF_INET6, host, inp6);
1453 ret = inet_pton(AF_INET, host, inp);
1456 struct addrinfo hints, *res;
1458 memset(&hints, 0, sizeof(hints));
1459 hints.ai_family = ipv6 ? AF_INET6 : AF_INET;
1460 hints.ai_socktype = SOCK_STREAM;
1462 ret = getaddrinfo(host, NULL, &hints, &res);
1464 log_err("fio: failed to resolve <%s> (%s)\n", host,
1470 memcpy(inp6, &((struct sockaddr_in6 *) res->ai_addr)->sin6_addr, sizeof(*inp6));
1472 memcpy(inp, &((struct sockaddr_in *) res->ai_addr)->sin_addr, sizeof(*inp));
1482 * Parse a host/ip/port string. Reads from 'str'.
1487 * *ptr is the host, *port is the port, inp is the destination.
1489 * *ptr is the host, *port is the port, inp6 is the dest, and *ipv6 is 1.
1490 * For local domain sockets:
1491 * *ptr is the filename, *is_sock is 1.
1493 int fio_server_parse_string(const char *str, char **ptr, int *is_sock,
1494 int *port, struct in_addr *inp,
1495 struct in6_addr *inp6, int *ipv6)
1497 const char *host = str;
1503 *port = fio_net_port;
1506 if (!strncmp(str, "sock:", 5)) {
1507 *ptr = strdup(str + 5);
1514 * Is it ip:<ip or host>:port
1516 if (!strncmp(host, "ip:", 3))
1518 else if (!strncmp(host, "ip4:", 4))
1520 else if (!strncmp(host, "ip6:", 4)) {
1523 } else if (host[0] == ':') {
1524 /* String is :port */
1527 if (!lport || lport > 65535) {
1528 log_err("fio: bad server port %u\n", lport);
1531 /* no hostname given, we are done */
1537 * If no port seen yet, check if there's a last ',' at the end
1540 portp = strchr(host, ',');
1544 lport = atoi(portp);
1545 if (!lport || lport > 65535) {
1546 log_err("fio: bad server port %u\n", lport);
1558 *ptr = strdup(host);
1560 if (fio_server_parse_host(*ptr, *ipv6, inp, inp6)) {
1567 *port = fio_net_port;
1573 * Server arg should be one of:
1575 * sock:/path/to/socket
1579 * Where sock uses unix domain sockets, and ip binds the server to
1580 * a specific interface. If no arguments are given to the server, it
1581 * uses IP and binds to 0.0.0.0.
1584 static int fio_handle_server_arg(void)
1586 int port = fio_net_port;
1587 int is_sock, ret = 0;
1589 saddr_in.sin_addr.s_addr = htonl(INADDR_ANY);
1591 if (!fio_server_arg)
1594 ret = fio_server_parse_string(fio_server_arg, &bind_sock, &is_sock,
1595 &port, &saddr_in.sin_addr,
1596 &saddr_in6.sin6_addr, &use_ipv6);
1598 if (!is_sock && bind_sock) {
1604 fio_net_port = port;
1605 saddr_in.sin_port = htons(port);
1606 saddr_in6.sin6_port = htons(port);
1610 static void sig_int(int sig)
1616 static void set_sig_handlers(void)
1618 struct sigaction act;
1620 memset(&act, 0, sizeof(act));
1621 act.sa_handler = sig_int;
1622 act.sa_flags = SA_RESTART;
1623 sigaction(SIGINT, &act, NULL);
1626 static int fio_server(void)
1630 dprint(FD_NET, "starting server\n");
1632 if (fio_handle_server_arg())
1635 sk = fio_init_server_connection();
1641 ret = accept_loop(sk);
1645 if (fio_server_arg) {
1646 free(fio_server_arg);
1647 fio_server_arg = NULL;
1655 void fio_server_got_signal(int signal)
1657 if (signal == SIGPIPE)
1660 log_info("\nfio: terminating on signal %d\n", signal);
1665 static int check_existing_pidfile(const char *pidfile)
1672 if (stat(pidfile, &sb))
1675 f = fopen(pidfile, "r");
1679 if (fread(buf, sb.st_size, 1, f) <= 0) {
1686 if (kill(pid, SIGCONT) < 0)
1687 return errno != ESRCH;
1692 static int write_pid(pid_t pid, const char *pidfile)
1696 fpid = fopen(pidfile, "w");
1698 log_err("fio: failed opening pid file %s\n", pidfile);
1702 fprintf(fpid, "%u\n", (unsigned int) pid);
1708 * If pidfile is specified, background us.
1710 int fio_start_server(char *pidfile)
1717 WSAStartup(MAKEWORD(2, 2), &wsd);
1721 return fio_server();
1723 if (check_existing_pidfile(pidfile)) {
1724 log_err("fio: pidfile %s exists and server appears alive\n",
1732 log_err("fio: failed server fork: %s", strerror(errno));
1736 int ret = write_pid(pid, pidfile);
1743 openlog("fio", LOG_NDELAY|LOG_NOWAIT|LOG_PID, LOG_USER);
1745 close(STDIN_FILENO);
1746 close(STDOUT_FILENO);
1747 close(STDERR_FILENO);
1759 void fio_server_set_arg(const char *arg)
1761 fio_server_arg = strdup(arg);