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"
30 int fio_net_port = FIO_NET_PORT;
34 static int server_fd = -1;
35 static char *fio_server_arg;
36 static char *bind_sock;
37 static struct sockaddr_in saddr_in;
38 static struct sockaddr_in6 saddr_in6;
41 static unsigned int has_zlib = 1;
43 static unsigned int has_zlib = 0;
45 static unsigned int use_zlib;
48 struct fio_fork_item {
49 struct flist_head list;
57 struct fio_mutex lock;
63 static const char *fio_server_ops[FIO_NET_CMD_NR] = {
88 const char *fio_server_op(unsigned int op)
92 if (op < FIO_NET_CMD_NR)
93 return fio_server_ops[op];
95 sprintf(buf, "UNKNOWN/%d", op);
99 static ssize_t iov_total_len(const struct iovec *iov, int count)
111 static int fio_sendv_data(int sk, struct iovec *iov, int count)
113 ssize_t total_len = iov_total_len(iov, count);
117 ret = writev(sk, iov, count);
124 if (ret >= iov->iov_len) {
129 iov->iov_base += ret;
135 else if (errno == EAGAIN || errno == EINTR)
139 } while (!exit_backend);
150 int fio_send_data(int sk, const void *p, unsigned int len)
152 struct iovec iov = { .iov_base = (void *) p, .iov_len = len };
154 assert(len <= sizeof(struct fio_net_cmd) + FIO_SERVER_MAX_FRAGMENT_PDU);
156 return fio_sendv_data(sk, &iov, 1);
159 int fio_recv_data(int sk, void *p, unsigned int len)
162 int ret = recv(sk, p, len, MSG_WAITALL);
172 else if (errno == EAGAIN || errno == EINTR)
176 } while (!exit_backend);
184 static int verify_convert_cmd(struct fio_net_cmd *cmd)
188 cmd->cmd_crc16 = le16_to_cpu(cmd->cmd_crc16);
189 cmd->pdu_crc16 = le16_to_cpu(cmd->pdu_crc16);
191 crc = fio_crc16(cmd, FIO_NET_CMD_CRC_SZ);
192 if (crc != cmd->cmd_crc16) {
193 log_err("fio: server bad crc on command (got %x, wanted %x)\n",
194 cmd->cmd_crc16, crc);
198 cmd->version = le16_to_cpu(cmd->version);
199 cmd->opcode = le16_to_cpu(cmd->opcode);
200 cmd->flags = le32_to_cpu(cmd->flags);
201 cmd->tag = le64_to_cpu(cmd->tag);
202 cmd->pdu_len = le32_to_cpu(cmd->pdu_len);
204 switch (cmd->version) {
208 log_err("fio: bad server cmd version %d\n", cmd->version);
212 if (cmd->pdu_len > FIO_SERVER_MAX_FRAGMENT_PDU) {
213 log_err("fio: command payload too large: %u\n", cmd->pdu_len);
221 * Read (and defragment, if necessary) incoming commands
223 struct fio_net_cmd *fio_net_recv_cmd(int sk)
225 struct fio_net_cmd cmd, *tmp, *cmdret = NULL;
226 size_t cmd_size = 0, pdu_offset = 0;
232 ret = fio_recv_data(sk, &cmd, sizeof(cmd));
236 /* We have a command, verify it and swap if need be */
237 ret = verify_convert_cmd(&cmd);
242 /* if this is text, add room for \0 at the end */
243 cmd_size = sizeof(cmd) + cmd.pdu_len + 1;
246 cmd_size += cmd.pdu_len;
248 if (cmd_size / 1024 > FIO_SERVER_MAX_CMD_MB * 1024) {
249 log_err("fio: cmd+pdu too large (%llu)\n", (unsigned long long) cmd_size);
254 tmp = realloc(cmdret, cmd_size);
256 log_err("fio: server failed allocating cmd\n");
263 memcpy(cmdret, &cmd, sizeof(cmd));
264 else if (cmdret->opcode != cmd.opcode) {
265 log_err("fio: fragment opcode mismatch (%d != %d)\n",
266 cmdret->opcode, cmd.opcode);
274 /* There's payload, get it */
275 pdu = (void *) cmdret->payload + pdu_offset;
276 ret = fio_recv_data(sk, pdu, cmd.pdu_len);
280 /* Verify payload crc */
281 crc = fio_crc16(pdu, cmd.pdu_len);
282 if (crc != cmd.pdu_crc16) {
283 log_err("fio: server bad crc on payload ");
284 log_err("(got %x, wanted %x)\n", cmd.pdu_crc16, crc);
289 pdu_offset += cmd.pdu_len;
291 cmdret->pdu_len += cmd.pdu_len;
293 } while (cmd.flags & FIO_NET_CMD_F_MORE);
299 /* zero-terminate text input */
300 if (cmdret->pdu_len) {
301 if (cmdret->opcode == FIO_NET_CMD_TEXT) {
302 struct cmd_text_pdu *__pdu = (struct cmd_text_pdu *) cmdret->payload;
303 char *buf = (char *) __pdu->buf;
305 buf[__pdu->buf_len] = '\0';
306 } else if (cmdret->opcode == FIO_NET_CMD_JOB) {
307 struct cmd_job_pdu *__pdu = (struct cmd_job_pdu *) cmdret->payload;
308 char *buf = (char *) __pdu->buf;
309 int len = le32_to_cpu(__pdu->buf_len);
315 /* frag flag is internal */
316 cmdret->flags &= ~FIO_NET_CMD_F_MORE;
322 static void add_reply(uint64_t tag, struct flist_head *list)
324 struct fio_net_cmd_reply *reply;
326 reply = (struct fio_net_cmd_reply *) (uintptr_t) tag;
327 flist_add_tail(&reply->list, list);
330 static uint64_t alloc_reply(uint64_t tag, uint16_t opcode)
332 struct fio_net_cmd_reply *reply;
334 reply = calloc(1, sizeof(*reply));
335 INIT_FLIST_HEAD(&reply->list);
336 fio_gettime(&reply->tv, NULL);
337 reply->saved_tag = tag;
338 reply->opcode = opcode;
340 return (uintptr_t) reply;
343 static void free_reply(uint64_t tag)
345 struct fio_net_cmd_reply *reply;
347 reply = (struct fio_net_cmd_reply *) (uintptr_t) tag;
351 void fio_net_cmd_crc_pdu(struct fio_net_cmd *cmd, const void *pdu)
355 cmd->cmd_crc16 = __cpu_to_le16(fio_crc16(cmd, FIO_NET_CMD_CRC_SZ));
357 pdu_len = le32_to_cpu(cmd->pdu_len);
358 cmd->pdu_crc16 = __cpu_to_le16(fio_crc16(pdu, pdu_len));
361 void fio_net_cmd_crc(struct fio_net_cmd *cmd)
363 fio_net_cmd_crc_pdu(cmd, cmd->payload);
366 int fio_net_send_cmd(int fd, uint16_t opcode, const void *buf, off_t size,
367 uint64_t *tagptr, struct flist_head *list)
369 struct fio_net_cmd *cmd = NULL;
370 size_t this_len, cur_len = 0;
376 tag = *tagptr = alloc_reply(*tagptr, opcode);
378 tag = tagptr ? *tagptr : 0;
382 if (this_len > FIO_SERVER_MAX_FRAGMENT_PDU)
383 this_len = FIO_SERVER_MAX_FRAGMENT_PDU;
385 if (!cmd || cur_len < sizeof(*cmd) + this_len) {
389 cur_len = sizeof(*cmd) + this_len;
390 cmd = malloc(cur_len);
393 fio_init_net_cmd(cmd, opcode, buf, this_len, tag);
396 cmd->flags = __cpu_to_le32(FIO_NET_CMD_F_MORE);
398 fio_net_cmd_crc(cmd);
400 ret = fio_send_data(fd, cmd, sizeof(*cmd) + this_len);
403 } while (!ret && size);
409 add_reply(tag, list);
418 static int fio_net_send_simple_stack_cmd(int sk, uint16_t opcode, uint64_t tag)
420 struct fio_net_cmd cmd;
422 fio_init_net_cmd(&cmd, opcode, NULL, 0, tag);
423 fio_net_cmd_crc(&cmd);
425 return fio_send_data(sk, &cmd, sizeof(cmd));
429 * If 'list' is non-NULL, then allocate and store the sent command for
430 * later verification.
432 int fio_net_send_simple_cmd(int sk, uint16_t opcode, uint64_t tag,
433 struct flist_head *list)
438 tag = alloc_reply(tag, opcode);
440 ret = fio_net_send_simple_stack_cmd(sk, opcode, tag);
449 add_reply(tag, list);
454 int fio_net_send_quit(int sk)
456 dprint(FD_NET, "server: sending quit\n");
458 return fio_net_send_simple_cmd(sk, FIO_NET_CMD_QUIT, 0, NULL);
461 static int fio_net_send_ack(int sk, struct fio_net_cmd *cmd, int error,
464 struct cmd_end_pdu epdu;
470 epdu.error = __cpu_to_le32(error);
471 epdu.signal = __cpu_to_le32(signal);
472 return fio_net_send_cmd(sk, FIO_NET_CMD_STOP, &epdu, sizeof(epdu), &tag, NULL);
475 int fio_net_send_stop(int sk, int error, int signal)
477 dprint(FD_NET, "server: sending stop (%d, %d)\n", error, signal);
478 return fio_net_send_ack(sk, NULL, error, signal);
481 static void fio_server_add_fork_item(pid_t pid, struct flist_head *list)
483 struct fio_fork_item *ffi;
485 ffi = malloc(sizeof(*ffi));
490 flist_add_tail(&ffi->list, list);
493 static void fio_server_add_conn_pid(struct flist_head *conn_list, pid_t pid)
495 dprint(FD_NET, "server: forked off connection job (pid=%u)\n", (int) pid);
496 fio_server_add_fork_item(pid, conn_list);
499 static void fio_server_add_job_pid(struct flist_head *job_list, pid_t pid)
501 dprint(FD_NET, "server: forked off job job (pid=%u)\n", (int) pid);
502 fio_server_add_fork_item(pid, job_list);
505 static void fio_server_check_fork_item(struct fio_fork_item *ffi)
509 ret = waitpid(ffi->pid, &status, WNOHANG);
511 if (errno == ECHILD) {
512 log_err("fio: connection pid %u disappeared\n", (int) ffi->pid);
515 log_err("fio: waitpid: %s\n", strerror(errno));
516 } else if (ret == ffi->pid) {
517 if (WIFSIGNALED(status)) {
518 ffi->signal = WTERMSIG(status);
521 if (WIFEXITED(status)) {
522 if (WEXITSTATUS(status))
523 ffi->exitval = WEXITSTATUS(status);
529 static void fio_server_fork_item_done(struct fio_fork_item *ffi)
531 dprint(FD_NET, "pid %u exited, sig=%u, exitval=%d\n", (int) ffi->pid, ffi->signal, ffi->exitval);
534 * Fold STOP and QUIT...
536 fio_net_send_stop(server_fd, ffi->exitval, ffi->signal);
537 fio_net_send_quit(server_fd);
538 flist_del(&ffi->list);
542 static void fio_server_check_fork_items(struct flist_head *list)
544 struct flist_head *entry, *tmp;
545 struct fio_fork_item *ffi;
547 flist_for_each_safe(entry, tmp, list) {
548 ffi = flist_entry(entry, struct fio_fork_item, list);
550 fio_server_check_fork_item(ffi);
553 fio_server_fork_item_done(ffi);
557 static void fio_server_check_jobs(struct flist_head *job_list)
559 fio_server_check_fork_items(job_list);
562 static void fio_server_check_conns(struct flist_head *conn_list)
564 fio_server_check_fork_items(conn_list);
567 static int handle_load_file_cmd(struct fio_net_cmd *cmd)
569 struct cmd_load_file_pdu *pdu = (struct cmd_load_file_pdu *) cmd->payload;
570 void *file_name = pdu->file;
571 struct cmd_start_pdu spdu;
573 dprint(FD_NET, "server: loading local file %s\n", (char *) file_name);
575 pdu->name_len = le16_to_cpu(pdu->name_len);
576 pdu->client_type = le16_to_cpu(pdu->client_type);
578 if (parse_jobs_ini(file_name, 0, 0, pdu->client_type)) {
579 fio_net_send_quit(server_fd);
583 spdu.jobs = cpu_to_le32(thread_number);
584 spdu.stat_outputs = cpu_to_le32(stat_number);
585 fio_net_send_cmd(server_fd, FIO_NET_CMD_START, &spdu, sizeof(spdu), NULL, NULL);
589 static int handle_run_cmd(struct flist_head *job_list, struct fio_net_cmd *cmd)
599 fio_server_add_job_pid(job_list, pid);
608 static int handle_job_cmd(struct fio_net_cmd *cmd)
610 struct cmd_job_pdu *pdu = (struct cmd_job_pdu *) cmd->payload;
611 void *buf = pdu->buf;
612 struct cmd_start_pdu spdu;
614 pdu->buf_len = le32_to_cpu(pdu->buf_len);
615 pdu->client_type = le32_to_cpu(pdu->client_type);
617 if (parse_jobs_ini(buf, 1, 0, pdu->client_type)) {
618 fio_net_send_quit(server_fd);
622 spdu.jobs = cpu_to_le32(thread_number);
623 spdu.stat_outputs = cpu_to_le32(stat_number);
624 fio_net_send_cmd(server_fd, FIO_NET_CMD_START, &spdu, sizeof(spdu), NULL, NULL);
628 static int handle_jobline_cmd(struct fio_net_cmd *cmd)
630 void *pdu = cmd->payload;
631 struct cmd_single_line_pdu *cslp;
632 struct cmd_line_pdu *clp;
633 unsigned long offset;
634 struct cmd_start_pdu spdu;
639 clp->lines = le16_to_cpu(clp->lines);
640 clp->client_type = le16_to_cpu(clp->client_type);
641 argv = malloc(clp->lines * sizeof(char *));
642 offset = sizeof(*clp);
644 dprint(FD_NET, "server: %d command line args\n", clp->lines);
646 for (i = 0; i < clp->lines; i++) {
648 argv[i] = (char *) cslp->text;
650 offset += sizeof(*cslp) + le16_to_cpu(cslp->len);
651 dprint(FD_NET, "server: %d: %s\n", i, argv[i]);
654 if (parse_cmd_line(clp->lines, argv, clp->client_type)) {
655 fio_net_send_quit(server_fd);
662 spdu.jobs = cpu_to_le32(thread_number);
663 spdu.stat_outputs = cpu_to_le32(stat_number);
664 fio_net_send_cmd(server_fd, FIO_NET_CMD_START, &spdu, sizeof(spdu), NULL, NULL);
668 static int handle_probe_cmd(struct fio_net_cmd *cmd)
670 struct cmd_client_probe_pdu *pdu = (struct cmd_client_probe_pdu *) cmd->payload;
671 struct cmd_probe_reply_pdu probe;
672 uint64_t tag = cmd->tag;
674 dprint(FD_NET, "server: sending probe reply\n");
676 strcpy(me, (char *) pdu->server);
678 memset(&probe, 0, sizeof(probe));
679 gethostname((char *) probe.hostname, sizeof(probe.hostname));
680 #ifdef CONFIG_BIG_ENDIAN
683 strncpy((char *) probe.fio_version, fio_version_string, sizeof(probe.fio_version));
686 probe.arch = FIO_ARCH;
687 probe.bpp = sizeof(void *);
688 probe.cpus = __cpu_to_le32(cpus_online());
691 * If the client supports compression and we do too, then enable it
693 if (has_zlib && le64_to_cpu(pdu->flags) & FIO_PROBE_FLAG_ZLIB) {
694 probe.flags = __cpu_to_le64(FIO_PROBE_FLAG_ZLIB);
701 return fio_net_send_cmd(server_fd, FIO_NET_CMD_PROBE, &probe, sizeof(probe), &tag, NULL);
704 static int handle_send_eta_cmd(struct fio_net_cmd *cmd)
707 uint64_t tag = cmd->tag;
711 je = get_jobs_eta(1, &size);
715 dprint(FD_NET, "server sending status\n");
717 je->nr_running = cpu_to_le32(je->nr_running);
718 je->nr_ramp = cpu_to_le32(je->nr_ramp);
719 je->nr_pending = cpu_to_le32(je->nr_pending);
720 je->nr_setting_up = cpu_to_le32(je->nr_setting_up);
721 je->files_open = cpu_to_le32(je->files_open);
723 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
724 je->m_rate[i] = cpu_to_le32(je->m_rate[i]);
725 je->t_rate[i] = cpu_to_le32(je->t_rate[i]);
726 je->m_iops[i] = cpu_to_le32(je->m_iops[i]);
727 je->t_iops[i] = cpu_to_le32(je->t_iops[i]);
728 je->rate[i] = cpu_to_le32(je->rate[i]);
729 je->iops[i] = cpu_to_le32(je->iops[i]);
732 je->elapsed_sec = cpu_to_le64(je->elapsed_sec);
733 je->eta_sec = cpu_to_le64(je->eta_sec);
734 je->nr_threads = cpu_to_le32(je->nr_threads);
735 je->is_pow2 = cpu_to_le32(je->is_pow2);
736 je->unit_base = cpu_to_le32(je->unit_base);
738 fio_net_send_cmd(server_fd, FIO_NET_CMD_ETA, je, size, &tag, NULL);
743 static int send_update_job_reply(int fd, uint64_t __tag, int error)
745 uint64_t tag = __tag;
748 pdu_error = __cpu_to_le32(error);
749 return fio_net_send_cmd(fd, FIO_NET_CMD_UPDATE_JOB, &pdu_error, sizeof(pdu_error), &tag, NULL);
752 static int handle_update_job_cmd(struct fio_net_cmd *cmd)
754 struct cmd_add_job_pdu *pdu = (struct cmd_add_job_pdu *) cmd->payload;
755 struct thread_data *td;
758 tnumber = le32_to_cpu(pdu->thread_number);
760 dprint(FD_NET, "server: updating options for job %u\n", tnumber);
762 if (!tnumber || tnumber > thread_number) {
763 send_update_job_reply(server_fd, cmd->tag, ENODEV);
767 td = &threads[tnumber - 1];
768 convert_thread_options_to_cpu(&td->o, &pdu->top);
769 send_update_job_reply(server_fd, cmd->tag, 0);
773 static int handle_trigger_cmd(struct fio_net_cmd *cmd)
775 struct cmd_vtrigger_pdu *pdu = (struct cmd_vtrigger_pdu *) cmd->payload;
776 char *buf = (char *) pdu->cmd;
777 struct all_io_list *rep;
780 pdu->len = le16_to_cpu(pdu->len);
781 buf[pdu->len] = '\0';
783 rep = get_all_io_list(IO_LIST_ALL, &sz);
785 struct all_io_list state;
787 state.threads = cpu_to_le64((uint64_t) 0);
788 fio_net_send_cmd(server_fd, FIO_NET_CMD_VTRIGGER, &state, sizeof(state), NULL, NULL);
790 fio_net_send_cmd(server_fd, FIO_NET_CMD_VTRIGGER, rep, sz, NULL, NULL);
798 static int handle_command(struct flist_head *job_list, struct fio_net_cmd *cmd)
802 dprint(FD_NET, "server: got op [%s], pdu=%u, tag=%llx\n",
803 fio_server_op(cmd->opcode), cmd->pdu_len,
804 (unsigned long long) cmd->tag);
806 switch (cmd->opcode) {
807 case FIO_NET_CMD_QUIT:
808 fio_terminate_threads(TERMINATE_ALL);
810 case FIO_NET_CMD_EXIT:
813 case FIO_NET_CMD_LOAD_FILE:
814 ret = handle_load_file_cmd(cmd);
816 case FIO_NET_CMD_JOB:
817 ret = handle_job_cmd(cmd);
819 case FIO_NET_CMD_JOBLINE:
820 ret = handle_jobline_cmd(cmd);
822 case FIO_NET_CMD_PROBE:
823 ret = handle_probe_cmd(cmd);
825 case FIO_NET_CMD_SEND_ETA:
826 ret = handle_send_eta_cmd(cmd);
828 case FIO_NET_CMD_RUN:
829 ret = handle_run_cmd(job_list, cmd);
831 case FIO_NET_CMD_UPDATE_JOB:
832 ret = handle_update_job_cmd(cmd);
834 case FIO_NET_CMD_VTRIGGER:
835 ret = handle_trigger_cmd(cmd);
837 case FIO_NET_CMD_SENDFILE: {
838 struct cmd_sendfile_reply *in;
839 struct cmd_reply *rep;
841 rep = (struct cmd_reply *) (uintptr_t) cmd->tag;
843 in = (struct cmd_sendfile_reply *) cmd->payload;
844 in->size = le32_to_cpu(in->size);
845 in->error = le32_to_cpu(in->error);
848 rep->error = in->error;
851 rep->data = smalloc(in->size);
856 rep->size = in->size;
857 memcpy(rep->data, in->data, in->size);
860 fio_mutex_up(&rep->lock);
864 log_err("fio: unknown opcode: %s\n", fio_server_op(cmd->opcode));
871 static int handle_connection(int sk)
873 struct fio_net_cmd *cmd = NULL;
874 FLIST_HEAD(job_list);
881 while (!exit_backend) {
882 struct pollfd pfd = {
891 if (!flist_empty(&job_list))
894 ret = poll(&pfd, 1, timeout);
898 log_err("fio: poll: %s\n", strerror(errno));
901 fio_server_check_jobs(&job_list);
905 if (pfd.revents & POLLIN)
907 if (pfd.revents & (POLLERR|POLLHUP)) {
911 } while (!exit_backend);
913 fio_server_check_jobs(&job_list);
918 cmd = fio_net_recv_cmd(sk);
924 ret = handle_command(&job_list, cmd);
939 static int accept_loop(int listen_sk)
941 struct sockaddr_in addr;
942 struct sockaddr_in6 addr6;
943 socklen_t len = use_ipv6 ? sizeof(addr6) : sizeof(addr);
945 int ret = 0, sk, exitval = 0;
946 FLIST_HEAD(conn_list);
948 dprint(FD_NET, "server enter accept loop\n");
950 fio_set_fd_nonblocking(listen_sk, "server");
952 while (!exit_backend) {
962 if (!flist_empty(&conn_list))
965 ret = poll(&pfd, 1, timeout);
969 log_err("fio: poll: %s\n", strerror(errno));
972 fio_server_check_conns(&conn_list);
976 if (pfd.revents & POLLIN)
978 } while (!exit_backend);
980 fio_server_check_conns(&conn_list);
982 if (exit_backend || ret < 0)
986 sk = accept(listen_sk, (struct sockaddr *) &addr6, &len);
988 sk = accept(listen_sk, (struct sockaddr *) &addr, &len);
991 log_err("fio: accept: %s\n", strerror(errno));
996 from = inet_ntop(AF_INET6, (struct sockaddr *) &addr6.sin6_addr, buf, sizeof(buf));
998 from = inet_ntop(AF_INET, (struct sockaddr *) &addr.sin_addr, buf, sizeof(buf));
1000 dprint(FD_NET, "server: connect from %s\n", from);
1005 fio_server_add_conn_pid(&conn_list, pid);
1010 handle_connection(sk);
1016 int fio_server_text_output(int level, const char *buf, size_t len)
1018 struct cmd_text_pdu *pdu;
1022 if (server_fd == -1)
1023 return log_local_buf(buf, len);
1025 tlen = sizeof(*pdu) + len;
1028 pdu->level = __cpu_to_le32(level);
1029 pdu->buf_len = __cpu_to_le32(len);
1031 gettimeofday(&tv, NULL);
1032 pdu->log_sec = __cpu_to_le64(tv.tv_sec);
1033 pdu->log_usec = __cpu_to_le64(tv.tv_usec);
1035 memcpy(pdu->buf, buf, len);
1037 fio_net_send_cmd(server_fd, FIO_NET_CMD_TEXT, pdu, tlen, NULL, NULL);
1042 static void convert_io_stat(struct io_stat *dst, struct io_stat *src)
1044 dst->max_val = cpu_to_le64(src->max_val);
1045 dst->min_val = cpu_to_le64(src->min_val);
1046 dst->samples = cpu_to_le64(src->samples);
1049 * Encode to IEEE 754 for network transfer
1051 dst->mean.u.i = cpu_to_le64(fio_double_to_uint64(src->mean.u.f));
1052 dst->S.u.i = cpu_to_le64(fio_double_to_uint64(src->S.u.f));
1055 static void convert_gs(struct group_run_stats *dst, struct group_run_stats *src)
1059 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
1060 dst->max_run[i] = cpu_to_le64(src->max_run[i]);
1061 dst->min_run[i] = cpu_to_le64(src->min_run[i]);
1062 dst->max_bw[i] = cpu_to_le64(src->max_bw[i]);
1063 dst->min_bw[i] = cpu_to_le64(src->min_bw[i]);
1064 dst->io_kb[i] = cpu_to_le64(src->io_kb[i]);
1065 dst->agg[i] = cpu_to_le64(src->agg[i]);
1068 dst->kb_base = cpu_to_le32(src->kb_base);
1069 dst->unit_base = cpu_to_le32(src->unit_base);
1070 dst->groupid = cpu_to_le32(src->groupid);
1071 dst->unified_rw_rep = cpu_to_le32(src->unified_rw_rep);
1075 * Send a CMD_TS, which packs struct thread_stat and group_run_stats
1076 * into a single payload.
1078 void fio_server_send_ts(struct thread_stat *ts, struct group_run_stats *rs)
1080 struct cmd_ts_pdu p;
1083 dprint(FD_NET, "server sending end stats\n");
1085 memset(&p, 0, sizeof(p));
1087 strncpy(p.ts.name, ts->name, FIO_JOBNAME_SIZE - 1);
1088 strncpy(p.ts.verror, ts->verror, FIO_VERROR_SIZE - 1);
1089 strncpy(p.ts.description, ts->description, FIO_JOBDESC_SIZE - 1);
1091 p.ts.error = cpu_to_le32(ts->error);
1092 p.ts.thread_number = cpu_to_le32(ts->thread_number);
1093 p.ts.groupid = cpu_to_le32(ts->groupid);
1094 p.ts.pid = cpu_to_le32(ts->pid);
1095 p.ts.members = cpu_to_le32(ts->members);
1096 p.ts.unified_rw_rep = cpu_to_le32(ts->unified_rw_rep);
1098 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
1099 convert_io_stat(&p.ts.clat_stat[i], &ts->clat_stat[i]);
1100 convert_io_stat(&p.ts.slat_stat[i], &ts->slat_stat[i]);
1101 convert_io_stat(&p.ts.lat_stat[i], &ts->lat_stat[i]);
1102 convert_io_stat(&p.ts.bw_stat[i], &ts->bw_stat[i]);
1105 p.ts.usr_time = cpu_to_le64(ts->usr_time);
1106 p.ts.sys_time = cpu_to_le64(ts->sys_time);
1107 p.ts.ctx = cpu_to_le64(ts->ctx);
1108 p.ts.minf = cpu_to_le64(ts->minf);
1109 p.ts.majf = cpu_to_le64(ts->majf);
1110 p.ts.clat_percentiles = cpu_to_le64(ts->clat_percentiles);
1111 p.ts.percentile_precision = cpu_to_le64(ts->percentile_precision);
1113 for (i = 0; i < FIO_IO_U_LIST_MAX_LEN; i++) {
1114 fio_fp64_t *src = &ts->percentile_list[i];
1115 fio_fp64_t *dst = &p.ts.percentile_list[i];
1117 dst->u.i = cpu_to_le64(fio_double_to_uint64(src->u.f));
1120 for (i = 0; i < FIO_IO_U_MAP_NR; i++) {
1121 p.ts.io_u_map[i] = cpu_to_le32(ts->io_u_map[i]);
1122 p.ts.io_u_submit[i] = cpu_to_le32(ts->io_u_submit[i]);
1123 p.ts.io_u_complete[i] = cpu_to_le32(ts->io_u_complete[i]);
1126 for (i = 0; i < FIO_IO_U_LAT_U_NR; i++) {
1127 p.ts.io_u_lat_u[i] = cpu_to_le32(ts->io_u_lat_u[i]);
1128 p.ts.io_u_lat_m[i] = cpu_to_le32(ts->io_u_lat_m[i]);
1131 for (i = 0; i < DDIR_RWDIR_CNT; i++)
1132 for (j = 0; j < FIO_IO_U_PLAT_NR; j++)
1133 p.ts.io_u_plat[i][j] = cpu_to_le32(ts->io_u_plat[i][j]);
1135 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
1136 p.ts.total_io_u[i] = cpu_to_le64(ts->total_io_u[i]);
1137 p.ts.short_io_u[i] = cpu_to_le64(ts->short_io_u[i]);
1138 p.ts.drop_io_u[i] = cpu_to_le64(ts->drop_io_u[i]);
1141 p.ts.total_submit = cpu_to_le64(ts->total_submit);
1142 p.ts.total_complete = cpu_to_le64(ts->total_complete);
1144 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
1145 p.ts.io_bytes[i] = cpu_to_le64(ts->io_bytes[i]);
1146 p.ts.runtime[i] = cpu_to_le64(ts->runtime[i]);
1149 p.ts.total_run_time = cpu_to_le64(ts->total_run_time);
1150 p.ts.continue_on_error = cpu_to_le16(ts->continue_on_error);
1151 p.ts.total_err_count = cpu_to_le64(ts->total_err_count);
1152 p.ts.first_error = cpu_to_le32(ts->first_error);
1153 p.ts.kb_base = cpu_to_le32(ts->kb_base);
1154 p.ts.unit_base = cpu_to_le32(ts->unit_base);
1156 p.ts.latency_depth = cpu_to_le32(ts->latency_depth);
1157 p.ts.latency_target = cpu_to_le64(ts->latency_target);
1158 p.ts.latency_window = cpu_to_le64(ts->latency_window);
1159 p.ts.latency_percentile.u.i = cpu_to_le64(fio_double_to_uint64(ts->latency_percentile.u.f));
1161 p.ts.nr_block_infos = le64_to_cpu(ts->nr_block_infos);
1162 for (i = 0; i < p.ts.nr_block_infos; i++)
1163 p.ts.block_infos[i] = le32_to_cpu(ts->block_infos[i]);
1165 convert_gs(&p.rs, rs);
1167 fio_net_send_cmd(server_fd, FIO_NET_CMD_TS, &p, sizeof(p), NULL, NULL);
1170 void fio_server_send_gs(struct group_run_stats *rs)
1172 struct group_run_stats gs;
1174 dprint(FD_NET, "server sending group run stats\n");
1176 convert_gs(&gs, rs);
1177 fio_net_send_cmd(server_fd, FIO_NET_CMD_GS, &gs, sizeof(gs), NULL, NULL);
1180 static void convert_agg(struct disk_util_agg *dst, struct disk_util_agg *src)
1184 for (i = 0; i < 2; i++) {
1185 dst->ios[i] = cpu_to_le64(src->ios[i]);
1186 dst->merges[i] = cpu_to_le64(src->merges[i]);
1187 dst->sectors[i] = cpu_to_le64(src->sectors[i]);
1188 dst->ticks[i] = cpu_to_le64(src->ticks[i]);
1191 dst->io_ticks = cpu_to_le64(src->io_ticks);
1192 dst->time_in_queue = cpu_to_le64(src->time_in_queue);
1193 dst->slavecount = cpu_to_le32(src->slavecount);
1194 dst->max_util.u.i = cpu_to_le64(fio_double_to_uint64(src->max_util.u.f));
1197 static void convert_dus(struct disk_util_stat *dst, struct disk_util_stat *src)
1201 dst->name[FIO_DU_NAME_SZ - 1] = '\0';
1202 strncpy((char *) dst->name, (char *) src->name, FIO_DU_NAME_SZ - 1);
1204 for (i = 0; i < 2; i++) {
1205 dst->s.ios[i] = cpu_to_le64(src->s.ios[i]);
1206 dst->s.merges[i] = cpu_to_le64(src->s.merges[i]);
1207 dst->s.sectors[i] = cpu_to_le64(src->s.sectors[i]);
1208 dst->s.ticks[i] = cpu_to_le64(src->s.ticks[i]);
1211 dst->s.io_ticks = cpu_to_le64(src->s.io_ticks);
1212 dst->s.time_in_queue = cpu_to_le64(src->s.time_in_queue);
1213 dst->s.msec = cpu_to_le64(src->s.msec);
1216 void fio_server_send_du(void)
1218 struct disk_util *du;
1219 struct flist_head *entry;
1220 struct cmd_du_pdu pdu;
1222 dprint(FD_NET, "server: sending disk_util %d\n", !flist_empty(&disk_list));
1224 memset(&pdu, 0, sizeof(pdu));
1226 flist_for_each(entry, &disk_list) {
1227 du = flist_entry(entry, struct disk_util, list);
1229 convert_dus(&pdu.dus, &du->dus);
1230 convert_agg(&pdu.agg, &du->agg);
1232 fio_net_send_cmd(server_fd, FIO_NET_CMD_DU, &pdu, sizeof(pdu), NULL, NULL);
1237 * Send a command with a separate PDU, not inlined in the command
1239 static int fio_send_cmd_ext_pdu(int sk, uint16_t opcode, const void *buf,
1240 off_t size, uint64_t tag, uint32_t flags)
1242 struct fio_net_cmd cmd;
1243 struct iovec iov[2];
1245 iov[0].iov_base = (void *) &cmd;
1246 iov[0].iov_len = sizeof(cmd);
1247 iov[1].iov_base = (void *) buf;
1248 iov[1].iov_len = size;
1250 __fio_init_net_cmd(&cmd, opcode, size, tag);
1251 cmd.flags = __cpu_to_le32(flags);
1252 fio_net_cmd_crc_pdu(&cmd, buf);
1254 return fio_sendv_data(sk, iov, 2);
1257 static int fio_send_iolog_gz(struct cmd_iolog_pdu *pdu, struct io_log *log)
1265 * Dirty - since the log is potentially huge, compress it into
1266 * FIO_SERVER_MAX_FRAGMENT_PDU chunks and let the receiving
1267 * side defragment it.
1269 out_pdu = malloc(FIO_SERVER_MAX_FRAGMENT_PDU);
1271 stream.zalloc = Z_NULL;
1272 stream.zfree = Z_NULL;
1273 stream.opaque = Z_NULL;
1275 if (deflateInit(&stream, Z_DEFAULT_COMPRESSION) != Z_OK) {
1280 stream.next_in = (void *) log->log;
1281 stream.avail_in = log->nr_samples * log_entry_sz(log);
1284 unsigned int this_len, flags = 0;
1286 stream.avail_out = FIO_SERVER_MAX_FRAGMENT_PDU;
1287 stream.next_out = out_pdu;
1288 ret = deflate(&stream, Z_FINISH);
1289 /* may be Z_OK, or Z_STREAM_END */
1293 this_len = FIO_SERVER_MAX_FRAGMENT_PDU - stream.avail_out;
1295 if (stream.avail_in)
1296 flags = FIO_NET_CMD_F_MORE;
1298 ret = fio_send_cmd_ext_pdu(server_fd, FIO_NET_CMD_IOLOG,
1299 out_pdu, this_len, 0, flags);
1302 } while (stream.avail_in);
1305 deflateEnd(&stream);
1312 int fio_send_iolog(struct thread_data *td, struct io_log *log, const char *name)
1314 struct cmd_iolog_pdu pdu;
1317 pdu.nr_samples = cpu_to_le64(log->nr_samples);
1318 pdu.thread_number = cpu_to_le32(td->thread_number);
1319 pdu.log_type = cpu_to_le32(log->log_type);
1320 pdu.compressed = cpu_to_le32(use_zlib);
1322 strncpy((char *) pdu.name, name, FIO_NET_NAME_MAX);
1323 pdu.name[FIO_NET_NAME_MAX - 1] = '\0';
1325 for (i = 0; i < log->nr_samples; i++) {
1326 struct io_sample *s = get_sample(log, i);
1328 s->time = cpu_to_le64(s->time);
1329 s->val = cpu_to_le64(s->val);
1330 s->__ddir = cpu_to_le32(s->__ddir);
1331 s->bs = cpu_to_le32(s->bs);
1333 if (log->log_offset) {
1334 struct io_sample_offset *so = (void *) s;
1336 so->offset = cpu_to_le64(so->offset);
1341 * Send header first, it's not compressed.
1343 ret = fio_send_cmd_ext_pdu(server_fd, FIO_NET_CMD_IOLOG, &pdu,
1344 sizeof(pdu), 0, FIO_NET_CMD_F_MORE);
1349 * Now send actual log, compress if we can, otherwise just plain
1352 return fio_send_iolog_gz(&pdu, log);
1354 return fio_send_cmd_ext_pdu(server_fd, FIO_NET_CMD_IOLOG, log->log,
1355 log->nr_samples * log_entry_sz(log), 0, 0);
1358 void fio_server_send_add_job(struct thread_data *td)
1360 struct cmd_add_job_pdu pdu;
1362 memset(&pdu, 0, sizeof(pdu));
1363 pdu.thread_number = cpu_to_le32(td->thread_number);
1364 pdu.groupid = cpu_to_le32(td->groupid);
1365 convert_thread_options_to_net(&pdu.top, &td->o);
1367 fio_net_send_cmd(server_fd, FIO_NET_CMD_ADD_JOB, &pdu, sizeof(pdu), NULL, NULL);
1370 void fio_server_send_start(struct thread_data *td)
1372 assert(server_fd != -1);
1374 fio_net_send_simple_cmd(server_fd, FIO_NET_CMD_SERVER_START, 0, NULL);
1377 int fio_server_get_verify_state(const char *name, int threadnumber,
1380 struct thread_io_list *s;
1381 struct cmd_sendfile out;
1382 struct cmd_reply *rep;
1386 dprint(FD_NET, "server: request verify state\n");
1388 rep = smalloc(sizeof(*rep));
1390 log_err("fio: smalloc pool too small\n");
1394 __fio_mutex_init(&rep->lock, FIO_MUTEX_LOCKED);
1398 verify_state_gen_name((char *) out.path, sizeof(out.path), name, me,
1400 tag = (uint64_t) (uintptr_t) rep;
1401 fio_net_send_cmd(server_fd, FIO_NET_CMD_SENDFILE, &out, sizeof(out),
1405 * Wait for the backend to receive the reply
1407 if (fio_mutex_down_timeout(&rep->lock, 10)) {
1408 log_err("fio: timed out waiting for reply\n");
1413 log_err("fio: failure on receiving state file: %s\n", strerror(rep->error));
1417 fio_net_send_quit(server_fd);
1422 * The format is verify_state_hdr, then thread_io_list. Verify
1423 * the header, and the thread_io_list checksum
1425 s = rep->data + sizeof(struct verify_state_hdr);
1426 if (verify_state_hdr(rep->data, s))
1430 * Don't need the header from now, copy just the thread_io_list
1432 rep->size -= sizeof(struct verify_state_hdr);
1433 data = malloc(rep->size);
1434 memcpy(data, s, rep->size);
1438 __fio_mutex_remove(&rep->lock);
1443 static int fio_init_server_ip(void)
1445 struct sockaddr *addr;
1452 sk = socket(AF_INET6, SOCK_STREAM, 0);
1454 sk = socket(AF_INET, SOCK_STREAM, 0);
1457 log_err("fio: socket: %s\n", strerror(errno));
1462 if (setsockopt(sk, SOL_SOCKET, SO_REUSEADDR, (void *)&opt, sizeof(opt)) < 0) {
1463 log_err("fio: setsockopt: %s\n", strerror(errno));
1468 if (setsockopt(sk, SOL_SOCKET, SO_REUSEPORT, &opt, sizeof(opt)) < 0) {
1469 log_err("fio: setsockopt: %s\n", strerror(errno));
1476 const void *src = &saddr_in6.sin6_addr;
1478 addr = (struct sockaddr *) &saddr_in6;
1479 socklen = sizeof(saddr_in6);
1480 saddr_in6.sin6_family = AF_INET6;
1481 str = inet_ntop(AF_INET6, src, buf, sizeof(buf));
1483 const void *src = &saddr_in.sin_addr;
1485 addr = (struct sockaddr *) &saddr_in;
1486 socklen = sizeof(saddr_in);
1487 saddr_in.sin_family = AF_INET;
1488 str = inet_ntop(AF_INET, src, buf, sizeof(buf));
1491 if (bind(sk, addr, socklen) < 0) {
1492 log_err("fio: bind: %s\n", strerror(errno));
1493 log_info("fio: failed with IPv%c %s\n", use_ipv6 ? '6' : '4', str);
1501 static int fio_init_server_sock(void)
1503 struct sockaddr_un addr;
1508 sk = socket(AF_UNIX, SOCK_STREAM, 0);
1510 log_err("fio: socket: %s\n", strerror(errno));
1516 memset(&addr, 0, sizeof(addr));
1517 addr.sun_family = AF_UNIX;
1518 strncpy(addr.sun_path, bind_sock, sizeof(addr.sun_path) - 1);
1520 len = sizeof(addr.sun_family) + strlen(bind_sock) + 1;
1522 if (bind(sk, (struct sockaddr *) &addr, len) < 0) {
1523 log_err("fio: bind: %s\n", strerror(errno));
1532 static int fio_init_server_connection(void)
1537 dprint(FD_NET, "starting server\n");
1540 sk = fio_init_server_ip();
1542 sk = fio_init_server_sock();
1547 memset(bind_str, 0, sizeof(bind_str));
1556 src = &saddr_in6.sin6_addr;
1559 src = &saddr_in.sin_addr;
1562 p = (char *) inet_ntop(af, src, bind_str, sizeof(bind_str));
1564 sprintf(port, ",%u", fio_net_port);
1568 strncpy(bind_str, port, sizeof(bind_str) - 1);
1570 strncpy(bind_str, bind_sock, sizeof(bind_str) - 1);
1572 log_info("fio: server listening on %s\n", bind_str);
1574 if (listen(sk, 0) < 0) {
1575 log_err("fio: listen: %s\n", strerror(errno));
1583 int fio_server_parse_host(const char *host, int ipv6, struct in_addr *inp,
1584 struct in6_addr *inp6)
1590 ret = inet_pton(AF_INET6, host, inp6);
1592 ret = inet_pton(AF_INET, host, inp);
1595 struct addrinfo hints, *res;
1597 memset(&hints, 0, sizeof(hints));
1598 hints.ai_family = ipv6 ? AF_INET6 : AF_INET;
1599 hints.ai_socktype = SOCK_STREAM;
1601 ret = getaddrinfo(host, NULL, &hints, &res);
1603 log_err("fio: failed to resolve <%s> (%s)\n", host,
1609 memcpy(inp6, &((struct sockaddr_in6 *) res->ai_addr)->sin6_addr, sizeof(*inp6));
1611 memcpy(inp, &((struct sockaddr_in *) res->ai_addr)->sin_addr, sizeof(*inp));
1621 * Parse a host/ip/port string. Reads from 'str'.
1626 * *ptr is the host, *port is the port, inp is the destination.
1628 * *ptr is the host, *port is the port, inp6 is the dest, and *ipv6 is 1.
1629 * For local domain sockets:
1630 * *ptr is the filename, *is_sock is 1.
1632 int fio_server_parse_string(const char *str, char **ptr, int *is_sock,
1633 int *port, struct in_addr *inp,
1634 struct in6_addr *inp6, int *ipv6)
1636 const char *host = str;
1642 *port = fio_net_port;
1645 if (!strncmp(str, "sock:", 5)) {
1646 *ptr = strdup(str + 5);
1653 * Is it ip:<ip or host>:port
1655 if (!strncmp(host, "ip:", 3))
1657 else if (!strncmp(host, "ip4:", 4))
1659 else if (!strncmp(host, "ip6:", 4)) {
1662 } else if (host[0] == ':') {
1663 /* String is :port */
1666 if (!lport || lport > 65535) {
1667 log_err("fio: bad server port %u\n", lport);
1670 /* no hostname given, we are done */
1676 * If no port seen yet, check if there's a last ',' at the end
1679 portp = strchr(host, ',');
1683 lport = atoi(portp);
1684 if (!lport || lport > 65535) {
1685 log_err("fio: bad server port %u\n", lport);
1697 *ptr = strdup(host);
1699 if (fio_server_parse_host(*ptr, *ipv6, inp, inp6)) {
1706 *port = fio_net_port;
1712 * Server arg should be one of:
1714 * sock:/path/to/socket
1718 * Where sock uses unix domain sockets, and ip binds the server to
1719 * a specific interface. If no arguments are given to the server, it
1720 * uses IP and binds to 0.0.0.0.
1723 static int fio_handle_server_arg(void)
1725 int port = fio_net_port;
1726 int is_sock, ret = 0;
1728 saddr_in.sin_addr.s_addr = htonl(INADDR_ANY);
1730 if (!fio_server_arg)
1733 ret = fio_server_parse_string(fio_server_arg, &bind_sock, &is_sock,
1734 &port, &saddr_in.sin_addr,
1735 &saddr_in6.sin6_addr, &use_ipv6);
1737 if (!is_sock && bind_sock) {
1743 fio_net_port = port;
1744 saddr_in.sin_port = htons(port);
1745 saddr_in6.sin6_port = htons(port);
1749 static void sig_int(int sig)
1755 static void set_sig_handlers(void)
1757 struct sigaction act;
1759 memset(&act, 0, sizeof(act));
1760 act.sa_handler = sig_int;
1761 act.sa_flags = SA_RESTART;
1762 sigaction(SIGINT, &act, NULL);
1765 static int fio_server(void)
1769 dprint(FD_NET, "starting server\n");
1771 if (fio_handle_server_arg())
1774 sk = fio_init_server_connection();
1780 ret = accept_loop(sk);
1784 if (fio_server_arg) {
1785 free(fio_server_arg);
1786 fio_server_arg = NULL;
1794 void fio_server_got_signal(int signal)
1796 if (signal == SIGPIPE)
1799 log_info("\nfio: terminating on signal %d\n", signal);
1804 static int check_existing_pidfile(const char *pidfile)
1811 if (stat(pidfile, &sb))
1814 f = fopen(pidfile, "r");
1818 if (fread(buf, sb.st_size, 1, f) <= 0) {
1825 if (kill(pid, SIGCONT) < 0)
1826 return errno != ESRCH;
1831 static int write_pid(pid_t pid, const char *pidfile)
1835 fpid = fopen(pidfile, "w");
1837 log_err("fio: failed opening pid file %s\n", pidfile);
1841 fprintf(fpid, "%u\n", (unsigned int) pid);
1847 * If pidfile is specified, background us.
1849 int fio_start_server(char *pidfile)
1856 WSAStartup(MAKEWORD(2, 2), &wsd);
1860 return fio_server();
1862 if (check_existing_pidfile(pidfile)) {
1863 log_err("fio: pidfile %s exists and server appears alive\n",
1871 log_err("fio: failed server fork: %s", strerror(errno));
1875 ret = write_pid(pid, pidfile);
1881 openlog("fio", LOG_NDELAY|LOG_NOWAIT|LOG_PID, LOG_USER);
1883 close(STDIN_FILENO);
1884 close(STDOUT_FILENO);
1885 close(STDERR_FILENO);
1897 void fio_server_set_arg(const char *arg)
1899 fio_server_arg = strdup(arg);