8 #include <sys/socket.h>
12 #include <netinet/in.h>
13 #include <arpa/inet.h>
24 #include "crc/crc16.h"
25 #include "lib/ieee754.h"
26 #include "verify-state.h"
29 int fio_net_port = FIO_NET_PORT;
42 struct flist_head list; /* link on sk_out->list */
43 int flags; /* SK_F_* */
44 int opcode; /* Actual command fields */
48 struct flist_head next; /* Other sk_entry's, if linked command */
51 static char *fio_server_arg;
52 static char *bind_sock;
53 static struct sockaddr_in saddr_in;
54 static struct sockaddr_in6 saddr_in6;
57 static unsigned int has_zlib = 1;
59 static unsigned int has_zlib = 0;
61 static unsigned int use_zlib;
64 static pthread_key_t sk_out_key;
66 struct fio_fork_item {
67 struct flist_head list;
81 static const char *fio_server_ops[FIO_NET_CMD_NR] = {
107 static void sk_lock(struct sk_out *sk_out)
109 fio_sem_down(&sk_out->lock);
112 static void sk_unlock(struct sk_out *sk_out)
114 fio_sem_up(&sk_out->lock);
117 void sk_out_assign(struct sk_out *sk_out)
125 pthread_setspecific(sk_out_key, sk_out);
128 static void sk_out_free(struct sk_out *sk_out)
130 __fio_sem_remove(&sk_out->lock);
131 __fio_sem_remove(&sk_out->wait);
132 __fio_sem_remove(&sk_out->xmit);
136 static int __sk_out_drop(struct sk_out *sk_out)
142 assert(sk_out->refs != 0);
143 refs = --sk_out->refs;
148 pthread_setspecific(sk_out_key, NULL);
156 void sk_out_drop(void)
158 struct sk_out *sk_out;
160 sk_out = pthread_getspecific(sk_out_key);
161 __sk_out_drop(sk_out);
164 static void __fio_init_net_cmd(struct fio_net_cmd *cmd, uint16_t opcode,
165 uint32_t pdu_len, uint64_t tag)
167 memset(cmd, 0, sizeof(*cmd));
169 cmd->version = __cpu_to_le16(FIO_SERVER_VER);
170 cmd->opcode = cpu_to_le16(opcode);
171 cmd->tag = cpu_to_le64(tag);
172 cmd->pdu_len = cpu_to_le32(pdu_len);
176 static void fio_init_net_cmd(struct fio_net_cmd *cmd, uint16_t opcode,
177 const void *pdu, uint32_t pdu_len, uint64_t tag)
179 __fio_init_net_cmd(cmd, opcode, pdu_len, tag);
182 memcpy(&cmd->payload, pdu, pdu_len);
185 const char *fio_server_op(unsigned int op)
189 if (op < FIO_NET_CMD_NR)
190 return fio_server_ops[op];
192 sprintf(buf, "UNKNOWN/%d", op);
196 static ssize_t iov_total_len(const struct iovec *iov, int count)
208 static int fio_sendv_data(int sk, struct iovec *iov, int count)
210 ssize_t total_len = iov_total_len(iov, count);
214 ret = writev(sk, iov, count);
221 if (ret >= iov->iov_len) {
226 iov->iov_base += ret;
232 else if (errno == EAGAIN || errno == EINTR)
236 } while (!exit_backend);
244 static int fio_send_data(int sk, const void *p, unsigned int len)
246 struct iovec iov = { .iov_base = (void *) p, .iov_len = len };
248 assert(len <= sizeof(struct fio_net_cmd) + FIO_SERVER_MAX_FRAGMENT_PDU);
250 return fio_sendv_data(sk, &iov, 1);
253 static int fio_recv_data(int sk, void *buf, unsigned int len, bool wait)
261 flags = OS_MSG_DONTWAIT;
264 int ret = recv(sk, p, len, flags);
274 else if (errno == EAGAIN || errno == EINTR) {
280 } while (!exit_backend);
288 static int verify_convert_cmd(struct fio_net_cmd *cmd)
292 cmd->cmd_crc16 = le16_to_cpu(cmd->cmd_crc16);
293 cmd->pdu_crc16 = le16_to_cpu(cmd->pdu_crc16);
295 crc = fio_crc16(cmd, FIO_NET_CMD_CRC_SZ);
296 if (crc != cmd->cmd_crc16) {
297 log_err("fio: server bad crc on command (got %x, wanted %x)\n",
298 cmd->cmd_crc16, crc);
302 cmd->version = le16_to_cpu(cmd->version);
303 cmd->opcode = le16_to_cpu(cmd->opcode);
304 cmd->flags = le32_to_cpu(cmd->flags);
305 cmd->tag = le64_to_cpu(cmd->tag);
306 cmd->pdu_len = le32_to_cpu(cmd->pdu_len);
308 switch (cmd->version) {
312 log_err("fio: bad server cmd version %d\n", cmd->version);
316 if (cmd->pdu_len > FIO_SERVER_MAX_FRAGMENT_PDU) {
317 log_err("fio: command payload too large: %u\n", cmd->pdu_len);
325 * Read (and defragment, if necessary) incoming commands
327 struct fio_net_cmd *fio_net_recv_cmd(int sk, bool wait)
329 struct fio_net_cmd cmd, *tmp, *cmdret = NULL;
330 size_t cmd_size = 0, pdu_offset = 0;
336 ret = fio_recv_data(sk, &cmd, sizeof(cmd), wait);
340 /* We have a command, verify it and swap if need be */
341 ret = verify_convert_cmd(&cmd);
346 /* if this is text, add room for \0 at the end */
347 cmd_size = sizeof(cmd) + cmd.pdu_len + 1;
350 cmd_size += cmd.pdu_len;
352 if (cmd_size / 1024 > FIO_SERVER_MAX_CMD_MB * 1024) {
353 log_err("fio: cmd+pdu too large (%llu)\n", (unsigned long long) cmd_size);
358 tmp = realloc(cmdret, cmd_size);
360 log_err("fio: server failed allocating cmd\n");
367 memcpy(cmdret, &cmd, sizeof(cmd));
368 else if (cmdret->opcode != cmd.opcode) {
369 log_err("fio: fragment opcode mismatch (%d != %d)\n",
370 cmdret->opcode, cmd.opcode);
378 /* There's payload, get it */
379 pdu = (char *) cmdret->payload + pdu_offset;
380 ret = fio_recv_data(sk, pdu, cmd.pdu_len, wait);
384 /* Verify payload crc */
385 crc = fio_crc16(pdu, cmd.pdu_len);
386 if (crc != cmd.pdu_crc16) {
387 log_err("fio: server bad crc on payload ");
388 log_err("(got %x, wanted %x)\n", cmd.pdu_crc16, crc);
393 pdu_offset += cmd.pdu_len;
395 cmdret->pdu_len += cmd.pdu_len;
397 } while (cmd.flags & FIO_NET_CMD_F_MORE);
403 /* zero-terminate text input */
404 if (cmdret->pdu_len) {
405 if (cmdret->opcode == FIO_NET_CMD_TEXT) {
406 struct cmd_text_pdu *__pdu = (struct cmd_text_pdu *) cmdret->payload;
407 char *buf = (char *) __pdu->buf;
409 buf[__pdu->buf_len] = '\0';
410 } else if (cmdret->opcode == FIO_NET_CMD_JOB) {
411 struct cmd_job_pdu *__pdu = (struct cmd_job_pdu *) cmdret->payload;
412 char *buf = (char *) __pdu->buf;
413 int len = le32_to_cpu(__pdu->buf_len);
419 /* frag flag is internal */
420 cmdret->flags &= ~FIO_NET_CMD_F_MORE;
426 static void add_reply(uint64_t tag, struct flist_head *list)
428 struct fio_net_cmd_reply *reply;
430 reply = (struct fio_net_cmd_reply *) (uintptr_t) tag;
431 flist_add_tail(&reply->list, list);
434 static uint64_t alloc_reply(uint64_t tag, uint16_t opcode)
436 struct fio_net_cmd_reply *reply;
438 reply = calloc(1, sizeof(*reply));
439 INIT_FLIST_HEAD(&reply->list);
440 fio_gettime(&reply->ts, NULL);
441 reply->saved_tag = tag;
442 reply->opcode = opcode;
444 return (uintptr_t) reply;
447 static void free_reply(uint64_t tag)
449 struct fio_net_cmd_reply *reply;
451 reply = (struct fio_net_cmd_reply *) (uintptr_t) tag;
455 static void fio_net_cmd_crc_pdu(struct fio_net_cmd *cmd, const void *pdu)
459 cmd->cmd_crc16 = __cpu_to_le16(fio_crc16(cmd, FIO_NET_CMD_CRC_SZ));
461 pdu_len = le32_to_cpu(cmd->pdu_len);
462 cmd->pdu_crc16 = __cpu_to_le16(fio_crc16(pdu, pdu_len));
465 static void fio_net_cmd_crc(struct fio_net_cmd *cmd)
467 fio_net_cmd_crc_pdu(cmd, cmd->payload);
470 int fio_net_send_cmd(int fd, uint16_t opcode, const void *buf, off_t size,
471 uint64_t *tagptr, struct flist_head *list)
473 struct fio_net_cmd *cmd = NULL;
474 size_t this_len, cur_len = 0;
480 tag = *tagptr = alloc_reply(*tagptr, opcode);
482 tag = tagptr ? *tagptr : 0;
486 if (this_len > FIO_SERVER_MAX_FRAGMENT_PDU)
487 this_len = FIO_SERVER_MAX_FRAGMENT_PDU;
489 if (!cmd || cur_len < sizeof(*cmd) + this_len) {
493 cur_len = sizeof(*cmd) + this_len;
494 cmd = malloc(cur_len);
497 fio_init_net_cmd(cmd, opcode, buf, this_len, tag);
500 cmd->flags = __cpu_to_le32(FIO_NET_CMD_F_MORE);
502 fio_net_cmd_crc(cmd);
504 ret = fio_send_data(fd, cmd, sizeof(*cmd) + this_len);
507 } while (!ret && size);
513 add_reply(tag, list);
522 static struct sk_entry *fio_net_prep_cmd(uint16_t opcode, void *buf,
523 size_t size, uint64_t *tagptr,
526 struct sk_entry *entry;
528 entry = smalloc(sizeof(*entry));
532 INIT_FLIST_HEAD(&entry->next);
533 entry->opcode = opcode;
534 if (flags & SK_F_COPY) {
535 entry->buf = smalloc(size);
536 memcpy(entry->buf, buf, size);
542 entry->tag = *tagptr;
545 entry->flags = flags;
549 static int handle_sk_entry(struct sk_out *sk_out, struct sk_entry *entry);
551 static void fio_net_queue_entry(struct sk_entry *entry)
553 struct sk_out *sk_out = pthread_getspecific(sk_out_key);
555 if (entry->flags & SK_F_INLINE)
556 handle_sk_entry(sk_out, entry);
559 flist_add_tail(&entry->list, &sk_out->list);
562 fio_sem_up(&sk_out->wait);
566 static int fio_net_queue_cmd(uint16_t opcode, void *buf, off_t size,
567 uint64_t *tagptr, int flags)
569 struct sk_entry *entry;
571 entry = fio_net_prep_cmd(opcode, buf, size, tagptr, flags);
573 fio_net_queue_entry(entry);
580 static int fio_net_send_simple_stack_cmd(int sk, uint16_t opcode, uint64_t tag)
582 struct fio_net_cmd cmd;
584 fio_init_net_cmd(&cmd, opcode, NULL, 0, tag);
585 fio_net_cmd_crc(&cmd);
587 return fio_send_data(sk, &cmd, sizeof(cmd));
591 * If 'list' is non-NULL, then allocate and store the sent command for
592 * later verification.
594 int fio_net_send_simple_cmd(int sk, uint16_t opcode, uint64_t tag,
595 struct flist_head *list)
600 tag = alloc_reply(tag, opcode);
602 ret = fio_net_send_simple_stack_cmd(sk, opcode, tag);
611 add_reply(tag, list);
616 static int fio_net_queue_quit(void)
618 dprint(FD_NET, "server: sending quit\n");
620 return fio_net_queue_cmd(FIO_NET_CMD_QUIT, NULL, 0, NULL, SK_F_SIMPLE);
623 int fio_net_send_quit(int sk)
625 dprint(FD_NET, "server: sending quit\n");
627 return fio_net_send_simple_cmd(sk, FIO_NET_CMD_QUIT, 0, NULL);
630 static int fio_net_send_ack(struct fio_net_cmd *cmd, int error, int signal)
632 struct cmd_end_pdu epdu;
638 epdu.error = __cpu_to_le32(error);
639 epdu.signal = __cpu_to_le32(signal);
640 return fio_net_queue_cmd(FIO_NET_CMD_STOP, &epdu, sizeof(epdu), &tag, SK_F_COPY);
643 static int fio_net_queue_stop(int error, int signal)
645 dprint(FD_NET, "server: sending stop (%d, %d)\n", error, signal);
646 return fio_net_send_ack(NULL, error, signal);
649 static void fio_server_add_fork_item(pid_t pid, struct flist_head *list)
651 struct fio_fork_item *ffi;
653 ffi = malloc(sizeof(*ffi));
658 flist_add_tail(&ffi->list, list);
661 static void fio_server_add_conn_pid(struct flist_head *conn_list, pid_t pid)
663 dprint(FD_NET, "server: forked off connection job (pid=%u)\n", (int) pid);
664 fio_server_add_fork_item(pid, conn_list);
667 static void fio_server_add_job_pid(struct flist_head *job_list, pid_t pid)
669 dprint(FD_NET, "server: forked off job job (pid=%u)\n", (int) pid);
670 fio_server_add_fork_item(pid, job_list);
673 static void fio_server_check_fork_item(struct fio_fork_item *ffi)
677 ret = waitpid(ffi->pid, &status, WNOHANG);
679 if (errno == ECHILD) {
680 log_err("fio: connection pid %u disappeared\n", (int) ffi->pid);
683 log_err("fio: waitpid: %s\n", strerror(errno));
684 } else if (ret == ffi->pid) {
685 if (WIFSIGNALED(status)) {
686 ffi->signal = WTERMSIG(status);
689 if (WIFEXITED(status)) {
690 if (WEXITSTATUS(status))
691 ffi->exitval = WEXITSTATUS(status);
697 static void fio_server_fork_item_done(struct fio_fork_item *ffi, bool stop)
699 dprint(FD_NET, "pid %u exited, sig=%u, exitval=%d\n", (int) ffi->pid, ffi->signal, ffi->exitval);
702 * Fold STOP and QUIT...
705 fio_net_queue_stop(ffi->exitval, ffi->signal);
706 fio_net_queue_quit();
709 flist_del(&ffi->list);
713 static void fio_server_check_fork_items(struct flist_head *list, bool stop)
715 struct flist_head *entry, *tmp;
716 struct fio_fork_item *ffi;
718 flist_for_each_safe(entry, tmp, list) {
719 ffi = flist_entry(entry, struct fio_fork_item, list);
721 fio_server_check_fork_item(ffi);
724 fio_server_fork_item_done(ffi, stop);
728 static void fio_server_check_jobs(struct flist_head *job_list)
730 fio_server_check_fork_items(job_list, true);
733 static void fio_server_check_conns(struct flist_head *conn_list)
735 fio_server_check_fork_items(conn_list, false);
738 static int handle_load_file_cmd(struct fio_net_cmd *cmd)
740 struct cmd_load_file_pdu *pdu = (struct cmd_load_file_pdu *) cmd->payload;
741 void *file_name = pdu->file;
742 struct cmd_start_pdu spdu;
744 dprint(FD_NET, "server: loading local file %s\n", (char *) file_name);
746 pdu->name_len = le16_to_cpu(pdu->name_len);
747 pdu->client_type = le16_to_cpu(pdu->client_type);
749 if (parse_jobs_ini(file_name, 0, 0, pdu->client_type)) {
750 fio_net_queue_quit();
754 spdu.jobs = cpu_to_le32(thread_number);
755 spdu.stat_outputs = cpu_to_le32(stat_number);
756 fio_net_queue_cmd(FIO_NET_CMD_START, &spdu, sizeof(spdu), NULL, SK_F_COPY);
760 static int handle_run_cmd(struct sk_out *sk_out, struct flist_head *job_list,
761 struct fio_net_cmd *cmd)
766 sk_out_assign(sk_out);
773 fio_server_add_job_pid(job_list, pid);
777 ret = fio_backend(sk_out);
783 static int handle_job_cmd(struct fio_net_cmd *cmd)
785 struct cmd_job_pdu *pdu = (struct cmd_job_pdu *) cmd->payload;
786 void *buf = pdu->buf;
787 struct cmd_start_pdu spdu;
789 pdu->buf_len = le32_to_cpu(pdu->buf_len);
790 pdu->client_type = le32_to_cpu(pdu->client_type);
792 if (parse_jobs_ini(buf, 1, 0, pdu->client_type)) {
793 fio_net_queue_quit();
797 spdu.jobs = cpu_to_le32(thread_number);
798 spdu.stat_outputs = cpu_to_le32(stat_number);
800 fio_net_queue_cmd(FIO_NET_CMD_START, &spdu, sizeof(spdu), NULL, SK_F_COPY);
804 static int handle_jobline_cmd(struct fio_net_cmd *cmd)
806 void *pdu = cmd->payload;
807 struct cmd_single_line_pdu *cslp;
808 struct cmd_line_pdu *clp;
809 unsigned long offset;
810 struct cmd_start_pdu spdu;
815 clp->lines = le16_to_cpu(clp->lines);
816 clp->client_type = le16_to_cpu(clp->client_type);
817 argv = malloc(clp->lines * sizeof(char *));
818 offset = sizeof(*clp);
820 dprint(FD_NET, "server: %d command line args\n", clp->lines);
822 for (i = 0; i < clp->lines; i++) {
824 argv[i] = (char *) cslp->text;
826 offset += sizeof(*cslp) + le16_to_cpu(cslp->len);
827 dprint(FD_NET, "server: %d: %s\n", i, argv[i]);
830 if (parse_cmd_line(clp->lines, argv, clp->client_type)) {
831 fio_net_queue_quit();
838 spdu.jobs = cpu_to_le32(thread_number);
839 spdu.stat_outputs = cpu_to_le32(stat_number);
841 fio_net_queue_cmd(FIO_NET_CMD_START, &spdu, sizeof(spdu), NULL, SK_F_COPY);
845 static int handle_probe_cmd(struct fio_net_cmd *cmd)
847 struct cmd_client_probe_pdu *pdu = (struct cmd_client_probe_pdu *) cmd->payload;
848 uint64_t tag = cmd->tag;
849 struct cmd_probe_reply_pdu probe = {
850 #ifdef CONFIG_BIG_ENDIAN
855 .bpp = sizeof(void *),
856 .cpus = __cpu_to_le32(cpus_online()),
859 dprint(FD_NET, "server: sending probe reply\n");
861 strcpy(me, (char *) pdu->server);
863 gethostname((char *) probe.hostname, sizeof(probe.hostname));
864 strncpy((char *) probe.fio_version, fio_version_string, sizeof(probe.fio_version) - 1);
867 * If the client supports compression and we do too, then enable it
869 if (has_zlib && le64_to_cpu(pdu->flags) & FIO_PROBE_FLAG_ZLIB) {
870 probe.flags = __cpu_to_le64(FIO_PROBE_FLAG_ZLIB);
877 return fio_net_queue_cmd(FIO_NET_CMD_PROBE, &probe, sizeof(probe), &tag, SK_F_COPY);
880 static int handle_send_eta_cmd(struct fio_net_cmd *cmd)
883 uint64_t tag = cmd->tag;
887 dprint(FD_NET, "server sending status\n");
890 * Fake ETA return if we don't have a local one, otherwise the client
891 * will end up timing out waiting for a response to the ETA request
893 je = get_jobs_eta(true, &size);
896 je = calloc(1, size);
898 je->nr_running = cpu_to_le32(je->nr_running);
899 je->nr_ramp = cpu_to_le32(je->nr_ramp);
900 je->nr_pending = cpu_to_le32(je->nr_pending);
901 je->nr_setting_up = cpu_to_le32(je->nr_setting_up);
902 je->files_open = cpu_to_le32(je->files_open);
904 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
905 je->m_rate[i] = cpu_to_le64(je->m_rate[i]);
906 je->t_rate[i] = cpu_to_le64(je->t_rate[i]);
907 je->m_iops[i] = cpu_to_le32(je->m_iops[i]);
908 je->t_iops[i] = cpu_to_le32(je->t_iops[i]);
909 je->rate[i] = cpu_to_le64(je->rate[i]);
910 je->iops[i] = cpu_to_le32(je->iops[i]);
913 je->elapsed_sec = cpu_to_le64(je->elapsed_sec);
914 je->eta_sec = cpu_to_le64(je->eta_sec);
915 je->nr_threads = cpu_to_le32(je->nr_threads);
916 je->is_pow2 = cpu_to_le32(je->is_pow2);
917 je->unit_base = cpu_to_le32(je->unit_base);
920 fio_net_queue_cmd(FIO_NET_CMD_ETA, je, size, &tag, SK_F_FREE);
924 static int send_update_job_reply(uint64_t __tag, int error)
926 uint64_t tag = __tag;
929 pdu_error = __cpu_to_le32(error);
930 return fio_net_queue_cmd(FIO_NET_CMD_UPDATE_JOB, &pdu_error, sizeof(pdu_error), &tag, SK_F_COPY);
933 static int handle_update_job_cmd(struct fio_net_cmd *cmd)
935 struct cmd_add_job_pdu *pdu = (struct cmd_add_job_pdu *) cmd->payload;
936 struct thread_data *td;
939 tnumber = le32_to_cpu(pdu->thread_number);
941 dprint(FD_NET, "server: updating options for job %u\n", tnumber);
943 if (!tnumber || tnumber > thread_number) {
944 send_update_job_reply(cmd->tag, ENODEV);
948 td = &threads[tnumber - 1];
949 convert_thread_options_to_cpu(&td->o, &pdu->top);
950 send_update_job_reply(cmd->tag, 0);
954 static int handle_trigger_cmd(struct fio_net_cmd *cmd, struct flist_head *job_list)
956 struct cmd_vtrigger_pdu *pdu = (struct cmd_vtrigger_pdu *) cmd->payload;
957 char *buf = (char *) pdu->cmd;
958 struct all_io_list *rep;
961 pdu->len = le16_to_cpu(pdu->len);
962 buf[pdu->len] = '\0';
964 rep = get_all_io_list(IO_LIST_ALL, &sz);
966 struct all_io_list state;
968 state.threads = cpu_to_le64((uint64_t) 0);
969 fio_net_queue_cmd(FIO_NET_CMD_VTRIGGER, &state, sizeof(state), NULL, SK_F_COPY | SK_F_INLINE);
971 fio_net_queue_cmd(FIO_NET_CMD_VTRIGGER, rep, sz, NULL, SK_F_FREE | SK_F_INLINE);
973 fio_terminate_threads(TERMINATE_ALL);
974 fio_server_check_jobs(job_list);
979 static int handle_command(struct sk_out *sk_out, struct flist_head *job_list,
980 struct fio_net_cmd *cmd)
984 dprint(FD_NET, "server: got op [%s], pdu=%u, tag=%llx\n",
985 fio_server_op(cmd->opcode), cmd->pdu_len,
986 (unsigned long long) cmd->tag);
988 switch (cmd->opcode) {
989 case FIO_NET_CMD_QUIT:
990 fio_terminate_threads(TERMINATE_ALL);
993 case FIO_NET_CMD_EXIT:
996 case FIO_NET_CMD_LOAD_FILE:
997 ret = handle_load_file_cmd(cmd);
999 case FIO_NET_CMD_JOB:
1000 ret = handle_job_cmd(cmd);
1002 case FIO_NET_CMD_JOBLINE:
1003 ret = handle_jobline_cmd(cmd);
1005 case FIO_NET_CMD_PROBE:
1006 ret = handle_probe_cmd(cmd);
1008 case FIO_NET_CMD_SEND_ETA:
1009 ret = handle_send_eta_cmd(cmd);
1011 case FIO_NET_CMD_RUN:
1012 ret = handle_run_cmd(sk_out, job_list, cmd);
1014 case FIO_NET_CMD_UPDATE_JOB:
1015 ret = handle_update_job_cmd(cmd);
1017 case FIO_NET_CMD_VTRIGGER:
1018 ret = handle_trigger_cmd(cmd, job_list);
1020 case FIO_NET_CMD_SENDFILE: {
1021 struct cmd_sendfile_reply *in;
1022 struct cmd_reply *rep;
1024 rep = (struct cmd_reply *) (uintptr_t) cmd->tag;
1026 in = (struct cmd_sendfile_reply *) cmd->payload;
1027 in->size = le32_to_cpu(in->size);
1028 in->error = le32_to_cpu(in->error);
1031 rep->error = in->error;
1034 rep->data = smalloc(in->size);
1037 rep->error = ENOMEM;
1039 rep->size = in->size;
1040 memcpy(rep->data, in->data, in->size);
1043 fio_sem_up(&rep->lock);
1047 log_err("fio: unknown opcode: %s\n", fio_server_op(cmd->opcode));
1055 * Send a command with a separate PDU, not inlined in the command
1057 static int fio_send_cmd_ext_pdu(int sk, uint16_t opcode, const void *buf,
1058 off_t size, uint64_t tag, uint32_t flags)
1060 struct fio_net_cmd cmd;
1061 struct iovec iov[2];
1065 iov[0].iov_base = (void *) &cmd;
1066 iov[0].iov_len = sizeof(cmd);
1069 uint32_t this_flags = flags;
1072 if (this_len > FIO_SERVER_MAX_FRAGMENT_PDU)
1073 this_len = FIO_SERVER_MAX_FRAGMENT_PDU;
1075 if (this_len < size)
1076 this_flags |= FIO_NET_CMD_F_MORE;
1078 __fio_init_net_cmd(&cmd, opcode, this_len, tag);
1079 cmd.flags = __cpu_to_le32(this_flags);
1080 fio_net_cmd_crc_pdu(&cmd, buf);
1082 iov[1].iov_base = (void *) buf;
1083 iov[1].iov_len = this_len;
1085 ret = fio_sendv_data(sk, iov, 2);
1088 } while (!ret && size);
1093 static void finish_entry(struct sk_entry *entry)
1095 if (entry->flags & SK_F_FREE)
1097 else if (entry->flags & SK_F_COPY)
1103 static void entry_set_flags(struct sk_entry *entry, struct flist_head *list,
1104 unsigned int *flags)
1106 if (!flist_empty(list))
1107 *flags = FIO_NET_CMD_F_MORE;
1112 static int send_vec_entry(struct sk_out *sk_out, struct sk_entry *first)
1117 entry_set_flags(first, &first->next, &flags);
1119 ret = fio_send_cmd_ext_pdu(sk_out->sk, first->opcode, first->buf,
1120 first->size, first->tag, flags);
1122 while (!flist_empty(&first->next)) {
1123 struct sk_entry *next;
1125 next = flist_first_entry(&first->next, struct sk_entry, list);
1126 flist_del_init(&next->list);
1128 entry_set_flags(next, &first->next, &flags);
1130 ret += fio_send_cmd_ext_pdu(sk_out->sk, next->opcode, next->buf,
1131 next->size, next->tag, flags);
1138 static int handle_sk_entry(struct sk_out *sk_out, struct sk_entry *entry)
1142 fio_sem_down(&sk_out->xmit);
1144 if (entry->flags & SK_F_VEC)
1145 ret = send_vec_entry(sk_out, entry);
1146 else if (entry->flags & SK_F_SIMPLE) {
1147 ret = fio_net_send_simple_cmd(sk_out->sk, entry->opcode,
1150 ret = fio_net_send_cmd(sk_out->sk, entry->opcode, entry->buf,
1151 entry->size, &entry->tag, NULL);
1154 fio_sem_up(&sk_out->xmit);
1157 log_err("fio: failed handling cmd %s\n", fio_server_op(entry->opcode));
1159 finish_entry(entry);
1163 static int handle_xmits(struct sk_out *sk_out)
1165 struct sk_entry *entry;
1170 if (flist_empty(&sk_out->list)) {
1175 flist_splice_init(&sk_out->list, &list);
1178 while (!flist_empty(&list)) {
1179 entry = flist_entry(list.next, struct sk_entry, list);
1180 flist_del(&entry->list);
1181 ret += handle_sk_entry(sk_out, entry);
1187 static int handle_connection(struct sk_out *sk_out)
1189 struct fio_net_cmd *cmd = NULL;
1190 FLIST_HEAD(job_list);
1196 while (!exit_backend) {
1197 struct pollfd pfd = {
1205 if (!flist_empty(&job_list))
1208 handle_xmits(sk_out);
1210 ret = poll(&pfd, 1, 0);
1214 log_err("fio: poll: %s\n", strerror(errno));
1217 fio_server_check_jobs(&job_list);
1218 fio_sem_down_timeout(&sk_out->wait, timeout);
1222 if (pfd.revents & POLLIN)
1224 if (pfd.revents & (POLLERR|POLLHUP)) {
1228 } while (!exit_backend);
1230 fio_server_check_jobs(&job_list);
1235 cmd = fio_net_recv_cmd(sk_out->sk, true);
1241 ret = handle_command(sk_out, &job_list, cmd);
1252 handle_xmits(sk_out);
1256 __sk_out_drop(sk_out);
1260 /* get the address on this host bound by the input socket,
1261 * whether it is ipv6 or ipv4 */
1263 static int get_my_addr_str(int sk)
1265 struct sockaddr_in6 myaddr6 = { 0, };
1266 struct sockaddr_in myaddr4 = { 0, };
1267 struct sockaddr *sockaddr_p;
1273 len = sizeof(myaddr6);
1274 sockaddr_p = (struct sockaddr * )&myaddr6;
1275 net_addr = (char * )&myaddr6.sin6_addr;
1277 len = sizeof(myaddr4);
1278 sockaddr_p = (struct sockaddr * )&myaddr4;
1279 net_addr = (char * )&myaddr4.sin_addr;
1282 ret = getsockname(sk, sockaddr_p, &len);
1284 log_err("fio: getsockname: %s\n", strerror(errno));
1288 if (!inet_ntop(use_ipv6?AF_INET6:AF_INET, net_addr, client_sockaddr_str, INET6_ADDRSTRLEN - 1)) {
1289 log_err("inet_ntop: failed to convert addr to string\n");
1293 dprint(FD_NET, "fio server bound to addr %s\n", client_sockaddr_str);
1297 static int accept_loop(int listen_sk)
1299 struct sockaddr_in addr;
1300 struct sockaddr_in6 addr6;
1301 socklen_t len = use_ipv6 ? sizeof(addr6) : sizeof(addr);
1303 int ret = 0, sk, exitval = 0;
1304 FLIST_HEAD(conn_list);
1306 dprint(FD_NET, "server enter accept loop\n");
1308 fio_set_fd_nonblocking(listen_sk, "server");
1310 while (!exit_backend) {
1311 struct sk_out *sk_out;
1317 pfd.events = POLLIN;
1321 if (!flist_empty(&conn_list))
1324 ret = poll(&pfd, 1, timeout);
1328 log_err("fio: poll: %s\n", strerror(errno));
1331 fio_server_check_conns(&conn_list);
1335 if (pfd.revents & POLLIN)
1337 } while (!exit_backend);
1339 fio_server_check_conns(&conn_list);
1341 if (exit_backend || ret < 0)
1345 sk = accept(listen_sk, (struct sockaddr *) &addr6, &len);
1347 sk = accept(listen_sk, (struct sockaddr *) &addr, &len);
1350 log_err("fio: accept: %s\n", strerror(errno));
1355 from = inet_ntop(AF_INET6, (struct sockaddr *) &addr6.sin6_addr, buf, sizeof(buf));
1357 from = inet_ntop(AF_INET, (struct sockaddr *) &addr.sin_addr, buf, sizeof(buf));
1359 dprint(FD_NET, "server: connect from %s\n", from);
1361 sk_out = scalloc(1, sizeof(*sk_out));
1368 INIT_FLIST_HEAD(&sk_out->list);
1369 __fio_sem_init(&sk_out->lock, FIO_SEM_UNLOCKED);
1370 __fio_sem_init(&sk_out->wait, FIO_SEM_LOCKED);
1371 __fio_sem_init(&sk_out->xmit, FIO_SEM_UNLOCKED);
1376 fio_server_add_conn_pid(&conn_list, pid);
1380 /* if error, it's already logged, non-fatal */
1381 get_my_addr_str(sk);
1384 * Assign sk_out here, it'll be dropped in handle_connection()
1385 * since that function calls _exit() when done
1387 sk_out_assign(sk_out);
1388 handle_connection(sk_out);
1394 int fio_server_text_output(int level, const char *buf, size_t len)
1396 struct sk_out *sk_out = pthread_getspecific(sk_out_key);
1397 struct cmd_text_pdu *pdu;
1401 if (!sk_out || sk_out->sk == -1)
1404 tlen = sizeof(*pdu) + len;
1407 pdu->level = __cpu_to_le32(level);
1408 pdu->buf_len = __cpu_to_le32(len);
1410 gettimeofday(&tv, NULL);
1411 pdu->log_sec = __cpu_to_le64(tv.tv_sec);
1412 pdu->log_usec = __cpu_to_le64(tv.tv_usec);
1414 memcpy(pdu->buf, buf, len);
1416 fio_net_queue_cmd(FIO_NET_CMD_TEXT, pdu, tlen, NULL, SK_F_COPY);
1421 static void convert_io_stat(struct io_stat *dst, struct io_stat *src)
1423 dst->max_val = cpu_to_le64(src->max_val);
1424 dst->min_val = cpu_to_le64(src->min_val);
1425 dst->samples = cpu_to_le64(src->samples);
1428 * Encode to IEEE 754 for network transfer
1430 dst->mean.u.i = cpu_to_le64(fio_double_to_uint64(src->mean.u.f));
1431 dst->S.u.i = cpu_to_le64(fio_double_to_uint64(src->S.u.f));
1434 static void convert_gs(struct group_run_stats *dst, struct group_run_stats *src)
1438 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
1439 dst->max_run[i] = cpu_to_le64(src->max_run[i]);
1440 dst->min_run[i] = cpu_to_le64(src->min_run[i]);
1441 dst->max_bw[i] = cpu_to_le64(src->max_bw[i]);
1442 dst->min_bw[i] = cpu_to_le64(src->min_bw[i]);
1443 dst->iobytes[i] = cpu_to_le64(src->iobytes[i]);
1444 dst->agg[i] = cpu_to_le64(src->agg[i]);
1447 dst->kb_base = cpu_to_le32(src->kb_base);
1448 dst->unit_base = cpu_to_le32(src->unit_base);
1449 dst->groupid = cpu_to_le32(src->groupid);
1450 dst->unified_rw_rep = cpu_to_le32(src->unified_rw_rep);
1451 dst->sig_figs = cpu_to_le32(src->sig_figs);
1455 * Send a CMD_TS, which packs struct thread_stat and group_run_stats
1456 * into a single payload.
1458 void fio_server_send_ts(struct thread_stat *ts, struct group_run_stats *rs)
1460 struct cmd_ts_pdu p;
1463 uint64_t *ss_iops, *ss_bw;
1465 dprint(FD_NET, "server sending end stats\n");
1467 memset(&p, 0, sizeof(p));
1469 strncpy(p.ts.name, ts->name, FIO_JOBNAME_SIZE - 1);
1470 strncpy(p.ts.verror, ts->verror, FIO_VERROR_SIZE - 1);
1471 strncpy(p.ts.description, ts->description, FIO_JOBDESC_SIZE - 1);
1473 p.ts.error = cpu_to_le32(ts->error);
1474 p.ts.thread_number = cpu_to_le32(ts->thread_number);
1475 p.ts.groupid = cpu_to_le32(ts->groupid);
1476 p.ts.pid = cpu_to_le32(ts->pid);
1477 p.ts.members = cpu_to_le32(ts->members);
1478 p.ts.unified_rw_rep = cpu_to_le32(ts->unified_rw_rep);
1480 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
1481 convert_io_stat(&p.ts.clat_stat[i], &ts->clat_stat[i]);
1482 convert_io_stat(&p.ts.slat_stat[i], &ts->slat_stat[i]);
1483 convert_io_stat(&p.ts.lat_stat[i], &ts->lat_stat[i]);
1484 convert_io_stat(&p.ts.bw_stat[i], &ts->bw_stat[i]);
1485 convert_io_stat(&p.ts.iops_stat[i], &ts->iops_stat[i]);
1488 p.ts.usr_time = cpu_to_le64(ts->usr_time);
1489 p.ts.sys_time = cpu_to_le64(ts->sys_time);
1490 p.ts.ctx = cpu_to_le64(ts->ctx);
1491 p.ts.minf = cpu_to_le64(ts->minf);
1492 p.ts.majf = cpu_to_le64(ts->majf);
1493 p.ts.clat_percentiles = cpu_to_le32(ts->clat_percentiles);
1494 p.ts.lat_percentiles = cpu_to_le32(ts->lat_percentiles);
1495 p.ts.percentile_precision = cpu_to_le64(ts->percentile_precision);
1497 for (i = 0; i < FIO_IO_U_LIST_MAX_LEN; i++) {
1498 fio_fp64_t *src = &ts->percentile_list[i];
1499 fio_fp64_t *dst = &p.ts.percentile_list[i];
1501 dst->u.i = cpu_to_le64(fio_double_to_uint64(src->u.f));
1504 for (i = 0; i < FIO_IO_U_MAP_NR; i++) {
1505 p.ts.io_u_map[i] = cpu_to_le64(ts->io_u_map[i]);
1506 p.ts.io_u_submit[i] = cpu_to_le64(ts->io_u_submit[i]);
1507 p.ts.io_u_complete[i] = cpu_to_le64(ts->io_u_complete[i]);
1510 for (i = 0; i < FIO_IO_U_LAT_N_NR; i++)
1511 p.ts.io_u_lat_n[i] = cpu_to_le64(ts->io_u_lat_n[i]);
1512 for (i = 0; i < FIO_IO_U_LAT_U_NR; i++)
1513 p.ts.io_u_lat_u[i] = cpu_to_le64(ts->io_u_lat_u[i]);
1514 for (i = 0; i < FIO_IO_U_LAT_M_NR; i++)
1515 p.ts.io_u_lat_m[i] = cpu_to_le64(ts->io_u_lat_m[i]);
1517 for (i = 0; i < DDIR_RWDIR_CNT; i++)
1518 for (j = 0; j < FIO_IO_U_PLAT_NR; j++)
1519 p.ts.io_u_plat[i][j] = cpu_to_le64(ts->io_u_plat[i][j]);
1521 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
1522 p.ts.total_io_u[i] = cpu_to_le64(ts->total_io_u[i]);
1523 p.ts.short_io_u[i] = cpu_to_le64(ts->short_io_u[i]);
1524 p.ts.drop_io_u[i] = cpu_to_le64(ts->drop_io_u[i]);
1527 p.ts.total_submit = cpu_to_le64(ts->total_submit);
1528 p.ts.total_complete = cpu_to_le64(ts->total_complete);
1530 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
1531 p.ts.io_bytes[i] = cpu_to_le64(ts->io_bytes[i]);
1532 p.ts.runtime[i] = cpu_to_le64(ts->runtime[i]);
1535 p.ts.total_run_time = cpu_to_le64(ts->total_run_time);
1536 p.ts.continue_on_error = cpu_to_le16(ts->continue_on_error);
1537 p.ts.total_err_count = cpu_to_le64(ts->total_err_count);
1538 p.ts.first_error = cpu_to_le32(ts->first_error);
1539 p.ts.kb_base = cpu_to_le32(ts->kb_base);
1540 p.ts.unit_base = cpu_to_le32(ts->unit_base);
1542 p.ts.latency_depth = cpu_to_le32(ts->latency_depth);
1543 p.ts.latency_target = cpu_to_le64(ts->latency_target);
1544 p.ts.latency_window = cpu_to_le64(ts->latency_window);
1545 p.ts.latency_percentile.u.i = cpu_to_le64(fio_double_to_uint64(ts->latency_percentile.u.f));
1547 p.ts.sig_figs = cpu_to_le32(ts->sig_figs);
1549 p.ts.nr_block_infos = cpu_to_le64(ts->nr_block_infos);
1550 for (i = 0; i < p.ts.nr_block_infos; i++)
1551 p.ts.block_infos[i] = cpu_to_le32(ts->block_infos[i]);
1553 p.ts.ss_dur = cpu_to_le64(ts->ss_dur);
1554 p.ts.ss_state = cpu_to_le32(ts->ss_state);
1555 p.ts.ss_head = cpu_to_le32(ts->ss_head);
1556 p.ts.ss_limit.u.i = cpu_to_le64(fio_double_to_uint64(ts->ss_limit.u.f));
1557 p.ts.ss_slope.u.i = cpu_to_le64(fio_double_to_uint64(ts->ss_slope.u.f));
1558 p.ts.ss_deviation.u.i = cpu_to_le64(fio_double_to_uint64(ts->ss_deviation.u.f));
1559 p.ts.ss_criterion.u.i = cpu_to_le64(fio_double_to_uint64(ts->ss_criterion.u.f));
1561 convert_gs(&p.rs, rs);
1563 dprint(FD_NET, "ts->ss_state = %d\n", ts->ss_state);
1564 if (ts->ss_state & FIO_SS_DATA) {
1565 dprint(FD_NET, "server sending steadystate ring buffers\n");
1567 ss_buf = malloc(sizeof(p) + 2*ts->ss_dur*sizeof(uint64_t));
1569 memcpy(ss_buf, &p, sizeof(p));
1571 ss_iops = (uint64_t *) ((struct cmd_ts_pdu *)ss_buf + 1);
1572 ss_bw = ss_iops + (int) ts->ss_dur;
1573 for (i = 0; i < ts->ss_dur; i++) {
1574 ss_iops[i] = cpu_to_le64(ts->ss_iops_data[i]);
1575 ss_bw[i] = cpu_to_le64(ts->ss_bw_data[i]);
1578 fio_net_queue_cmd(FIO_NET_CMD_TS, ss_buf, sizeof(p) + 2*ts->ss_dur*sizeof(uint64_t), NULL, SK_F_COPY);
1583 fio_net_queue_cmd(FIO_NET_CMD_TS, &p, sizeof(p), NULL, SK_F_COPY);
1586 void fio_server_send_gs(struct group_run_stats *rs)
1588 struct group_run_stats gs;
1590 dprint(FD_NET, "server sending group run stats\n");
1592 convert_gs(&gs, rs);
1593 fio_net_queue_cmd(FIO_NET_CMD_GS, &gs, sizeof(gs), NULL, SK_F_COPY);
1596 void fio_server_send_job_options(struct flist_head *opt_list,
1597 unsigned int groupid)
1599 struct cmd_job_option pdu;
1600 struct flist_head *entry;
1602 if (flist_empty(opt_list))
1605 flist_for_each(entry, opt_list) {
1606 struct print_option *p;
1609 p = flist_entry(entry, struct print_option, list);
1610 memset(&pdu, 0, sizeof(pdu));
1612 if (groupid == -1U) {
1613 pdu.global = __cpu_to_le16(1);
1617 pdu.groupid = cpu_to_le32(groupid);
1619 len = strlen(p->name);
1620 if (len >= sizeof(pdu.name)) {
1621 len = sizeof(pdu.name) - 1;
1622 pdu.truncated = __cpu_to_le16(1);
1624 memcpy(pdu.name, p->name, len);
1626 len = strlen(p->value);
1627 if (len >= sizeof(pdu.value)) {
1628 len = sizeof(pdu.value) - 1;
1629 pdu.truncated = __cpu_to_le16(1);
1631 memcpy(pdu.value, p->value, len);
1633 fio_net_queue_cmd(FIO_NET_CMD_JOB_OPT, &pdu, sizeof(pdu), NULL, SK_F_COPY);
1637 static void convert_agg(struct disk_util_agg *dst, struct disk_util_agg *src)
1641 for (i = 0; i < 2; i++) {
1642 dst->ios[i] = cpu_to_le64(src->ios[i]);
1643 dst->merges[i] = cpu_to_le64(src->merges[i]);
1644 dst->sectors[i] = cpu_to_le64(src->sectors[i]);
1645 dst->ticks[i] = cpu_to_le64(src->ticks[i]);
1648 dst->io_ticks = cpu_to_le64(src->io_ticks);
1649 dst->time_in_queue = cpu_to_le64(src->time_in_queue);
1650 dst->slavecount = cpu_to_le32(src->slavecount);
1651 dst->max_util.u.i = cpu_to_le64(fio_double_to_uint64(src->max_util.u.f));
1654 static void convert_dus(struct disk_util_stat *dst, struct disk_util_stat *src)
1658 dst->name[FIO_DU_NAME_SZ - 1] = '\0';
1659 strncpy((char *) dst->name, (char *) src->name, FIO_DU_NAME_SZ - 1);
1661 for (i = 0; i < 2; i++) {
1662 dst->s.ios[i] = cpu_to_le64(src->s.ios[i]);
1663 dst->s.merges[i] = cpu_to_le64(src->s.merges[i]);
1664 dst->s.sectors[i] = cpu_to_le64(src->s.sectors[i]);
1665 dst->s.ticks[i] = cpu_to_le64(src->s.ticks[i]);
1668 dst->s.io_ticks = cpu_to_le64(src->s.io_ticks);
1669 dst->s.time_in_queue = cpu_to_le64(src->s.time_in_queue);
1670 dst->s.msec = cpu_to_le64(src->s.msec);
1673 void fio_server_send_du(void)
1675 struct disk_util *du;
1676 struct flist_head *entry;
1677 struct cmd_du_pdu pdu;
1679 dprint(FD_NET, "server: sending disk_util %d\n", !flist_empty(&disk_list));
1681 memset(&pdu, 0, sizeof(pdu));
1683 flist_for_each(entry, &disk_list) {
1684 du = flist_entry(entry, struct disk_util, list);
1686 convert_dus(&pdu.dus, &du->dus);
1687 convert_agg(&pdu.agg, &du->agg);
1689 fio_net_queue_cmd(FIO_NET_CMD_DU, &pdu, sizeof(pdu), NULL, SK_F_COPY);
1695 static inline void __fio_net_prep_tail(z_stream *stream, void *out_pdu,
1696 struct sk_entry **last_entry,
1697 struct sk_entry *first)
1699 unsigned int this_len = FIO_SERVER_MAX_FRAGMENT_PDU - stream->avail_out;
1701 *last_entry = fio_net_prep_cmd(FIO_NET_CMD_IOLOG, out_pdu, this_len,
1702 NULL, SK_F_VEC | SK_F_INLINE | SK_F_FREE);
1704 flist_add_tail(&(*last_entry)->list, &first->next);
1708 * Deflates the next input given, creating as many new packets in the
1709 * linked list as necessary.
1711 static int __deflate_pdu_buffer(void *next_in, unsigned int next_sz, void **out_pdu,
1712 struct sk_entry **last_entry, z_stream *stream,
1713 struct sk_entry *first)
1717 stream->next_in = next_in;
1718 stream->avail_in = next_sz;
1720 if (!stream->avail_out) {
1721 __fio_net_prep_tail(stream, *out_pdu, last_entry, first);
1722 if (*last_entry == NULL)
1725 *out_pdu = malloc(FIO_SERVER_MAX_FRAGMENT_PDU);
1727 stream->avail_out = FIO_SERVER_MAX_FRAGMENT_PDU;
1728 stream->next_out = *out_pdu;
1731 ret = deflate(stream, Z_BLOCK);
1737 } while (stream->avail_in);
1742 static int __fio_append_iolog_gz_hist(struct sk_entry *first, struct io_log *log,
1743 struct io_logs *cur_log, z_stream *stream)
1745 struct sk_entry *entry;
1748 int sample_sz = log_entry_sz(log);
1750 out_pdu = malloc(FIO_SERVER_MAX_FRAGMENT_PDU);
1751 stream->avail_out = FIO_SERVER_MAX_FRAGMENT_PDU;
1752 stream->next_out = out_pdu;
1754 for (i = 0; i < cur_log->nr_samples; i++) {
1755 struct io_sample *s;
1756 struct io_u_plat_entry *cur_plat_entry, *prev_plat_entry;
1757 uint64_t *cur_plat, *prev_plat;
1759 s = get_sample(log, cur_log, i);
1760 ret = __deflate_pdu_buffer(s, sample_sz, &out_pdu, &entry, stream, first);
1764 /* Do the subtraction on server side so that client doesn't have to
1765 * reconstruct our linked list from packets.
1767 cur_plat_entry = s->data.plat_entry;
1768 prev_plat_entry = flist_first_entry(&cur_plat_entry->list, struct io_u_plat_entry, list);
1769 cur_plat = cur_plat_entry->io_u_plat;
1770 prev_plat = prev_plat_entry->io_u_plat;
1772 for (j = 0; j < FIO_IO_U_PLAT_NR; j++) {
1773 cur_plat[j] -= prev_plat[j];
1776 flist_del(&prev_plat_entry->list);
1777 free(prev_plat_entry);
1779 ret = __deflate_pdu_buffer(cur_plat_entry, sizeof(*cur_plat_entry),
1780 &out_pdu, &entry, stream, first);
1786 __fio_net_prep_tail(stream, out_pdu, &entry, first);
1787 return entry == NULL;
1790 static int __fio_append_iolog_gz(struct sk_entry *first, struct io_log *log,
1791 struct io_logs *cur_log, z_stream *stream)
1793 unsigned int this_len;
1797 if (log->log_type == IO_LOG_TYPE_HIST)
1798 return __fio_append_iolog_gz_hist(first, log, cur_log, stream);
1800 stream->next_in = (void *) cur_log->log;
1801 stream->avail_in = cur_log->nr_samples * log_entry_sz(log);
1804 struct sk_entry *entry;
1807 * Dirty - since the log is potentially huge, compress it into
1808 * FIO_SERVER_MAX_FRAGMENT_PDU chunks and let the receiving
1809 * side defragment it.
1811 out_pdu = malloc(FIO_SERVER_MAX_FRAGMENT_PDU);
1813 stream->avail_out = FIO_SERVER_MAX_FRAGMENT_PDU;
1814 stream->next_out = out_pdu;
1815 ret = deflate(stream, Z_BLOCK);
1816 /* may be Z_OK, or Z_STREAM_END */
1822 this_len = FIO_SERVER_MAX_FRAGMENT_PDU - stream->avail_out;
1824 entry = fio_net_prep_cmd(FIO_NET_CMD_IOLOG, out_pdu, this_len,
1825 NULL, SK_F_VEC | SK_F_INLINE | SK_F_FREE);
1830 flist_add_tail(&entry->list, &first->next);
1831 } while (stream->avail_in);
1836 static int fio_append_iolog_gz(struct sk_entry *first, struct io_log *log)
1845 if (deflateInit(&stream, Z_DEFAULT_COMPRESSION) != Z_OK)
1848 while (!flist_empty(&log->io_logs)) {
1849 struct io_logs *cur_log;
1851 cur_log = flist_first_entry(&log->io_logs, struct io_logs, list);
1852 flist_del_init(&cur_log->list);
1854 ret = __fio_append_iolog_gz(first, log, cur_log, &stream);
1859 ret = deflate(&stream, Z_FINISH);
1861 while (ret != Z_STREAM_END) {
1862 struct sk_entry *entry;
1863 unsigned int this_len;
1866 out_pdu = malloc(FIO_SERVER_MAX_FRAGMENT_PDU);
1867 stream.avail_out = FIO_SERVER_MAX_FRAGMENT_PDU;
1868 stream.next_out = out_pdu;
1870 ret = deflate(&stream, Z_FINISH);
1871 /* may be Z_OK, or Z_STREAM_END */
1877 this_len = FIO_SERVER_MAX_FRAGMENT_PDU - stream.avail_out;
1879 entry = fio_net_prep_cmd(FIO_NET_CMD_IOLOG, out_pdu, this_len,
1880 NULL, SK_F_VEC | SK_F_INLINE | SK_F_FREE);
1885 flist_add_tail(&entry->list, &first->next);
1886 } while (ret != Z_STREAM_END);
1888 ret = deflateEnd(&stream);
1895 static int fio_append_iolog_gz(struct sk_entry *first, struct io_log *log)
1901 static int fio_append_gz_chunks(struct sk_entry *first, struct io_log *log)
1903 struct sk_entry *entry;
1904 struct flist_head *node;
1907 pthread_mutex_lock(&log->chunk_lock);
1908 flist_for_each(node, &log->chunk_list) {
1909 struct iolog_compress *c;
1911 c = flist_entry(node, struct iolog_compress, list);
1912 entry = fio_net_prep_cmd(FIO_NET_CMD_IOLOG, c->buf, c->len,
1913 NULL, SK_F_VEC | SK_F_INLINE);
1918 flist_add_tail(&entry->list, &first->next);
1920 pthread_mutex_unlock(&log->chunk_lock);
1924 static int fio_append_text_log(struct sk_entry *first, struct io_log *log)
1926 struct sk_entry *entry;
1929 while (!flist_empty(&log->io_logs)) {
1930 struct io_logs *cur_log;
1933 cur_log = flist_first_entry(&log->io_logs, struct io_logs, list);
1934 flist_del_init(&cur_log->list);
1936 size = cur_log->nr_samples * log_entry_sz(log);
1938 entry = fio_net_prep_cmd(FIO_NET_CMD_IOLOG, cur_log->log, size,
1939 NULL, SK_F_VEC | SK_F_INLINE);
1944 flist_add_tail(&entry->list, &first->next);
1950 int fio_send_iolog(struct thread_data *td, struct io_log *log, const char *name)
1952 struct cmd_iolog_pdu pdu = {
1953 .nr_samples = cpu_to_le64(iolog_nr_samples(log)),
1954 .thread_number = cpu_to_le32(td->thread_number),
1955 .log_type = cpu_to_le32(log->log_type),
1956 .log_hist_coarseness = cpu_to_le32(log->hist_coarseness),
1958 struct sk_entry *first;
1959 struct flist_head *entry;
1962 if (!flist_empty(&log->chunk_list))
1963 pdu.compressed = __cpu_to_le32(STORE_COMPRESSED);
1965 pdu.compressed = __cpu_to_le32(XMIT_COMPRESSED);
1969 strncpy((char *) pdu.name, name, FIO_NET_NAME_MAX);
1970 pdu.name[FIO_NET_NAME_MAX - 1] = '\0';
1973 * We can't do this for a pre-compressed log, but for that case,
1974 * log->nr_samples is zero anyway.
1976 flist_for_each(entry, &log->io_logs) {
1977 struct io_logs *cur_log;
1980 cur_log = flist_entry(entry, struct io_logs, list);
1982 for (i = 0; i < cur_log->nr_samples; i++) {
1983 struct io_sample *s = get_sample(log, cur_log, i);
1985 s->time = cpu_to_le64(s->time);
1986 s->data.val = cpu_to_le64(s->data.val);
1987 s->__ddir = cpu_to_le32(s->__ddir);
1988 s->bs = cpu_to_le32(s->bs);
1990 if (log->log_offset) {
1991 struct io_sample_offset *so = (void *) s;
1993 so->offset = cpu_to_le64(so->offset);
1999 * Assemble header entry first
2001 first = fio_net_prep_cmd(FIO_NET_CMD_IOLOG, &pdu, sizeof(pdu), NULL, SK_F_VEC | SK_F_INLINE | SK_F_COPY);
2006 * Now append actual log entries. If log compression was enabled on
2007 * the job, just send out the compressed chunks directly. If we
2008 * have a plain log, compress if we can, then send. Otherwise, send
2009 * the plain text output.
2011 if (!flist_empty(&log->chunk_list))
2012 ret = fio_append_gz_chunks(first, log);
2014 ret = fio_append_iolog_gz(first, log);
2016 ret = fio_append_text_log(first, log);
2018 fio_net_queue_entry(first);
2022 void fio_server_send_add_job(struct thread_data *td)
2024 struct cmd_add_job_pdu pdu = {
2025 .thread_number = cpu_to_le32(td->thread_number),
2026 .groupid = cpu_to_le32(td->groupid),
2029 convert_thread_options_to_net(&pdu.top, &td->o);
2031 fio_net_queue_cmd(FIO_NET_CMD_ADD_JOB, &pdu, sizeof(pdu), NULL,
2035 void fio_server_send_start(struct thread_data *td)
2037 struct sk_out *sk_out = pthread_getspecific(sk_out_key);
2039 assert(sk_out->sk != -1);
2041 fio_net_queue_cmd(FIO_NET_CMD_SERVER_START, NULL, 0, NULL, SK_F_SIMPLE);
2044 int fio_server_get_verify_state(const char *name, int threadnumber,
2047 struct thread_io_list *s;
2048 struct cmd_sendfile out;
2049 struct cmd_reply *rep;
2054 dprint(FD_NET, "server: request verify state\n");
2056 rep = smalloc(sizeof(*rep));
2060 __fio_sem_init(&rep->lock, FIO_SEM_LOCKED);
2064 verify_state_gen_name((char *) out.path, sizeof(out.path), name, me,
2066 tag = (uint64_t) (uintptr_t) rep;
2067 fio_net_queue_cmd(FIO_NET_CMD_SENDFILE, &out, sizeof(out), &tag,
2071 * Wait for the backend to receive the reply
2073 if (fio_sem_down_timeout(&rep->lock, 10000)) {
2074 log_err("fio: timed out waiting for reply\n");
2080 log_err("fio: failure on receiving state file %s: %s\n",
2081 out.path, strerror(rep->error));
2086 fio_net_queue_quit();
2091 * The format is verify_state_hdr, then thread_io_list. Verify
2092 * the header, and the thread_io_list checksum
2094 s = rep->data + sizeof(struct verify_state_hdr);
2095 if (verify_state_hdr(rep->data, s)) {
2101 * Don't need the header from now, copy just the thread_io_list
2104 rep->size -= sizeof(struct verify_state_hdr);
2105 data = malloc(rep->size);
2106 memcpy(data, s, rep->size);
2110 __fio_sem_remove(&rep->lock);
2115 static int fio_init_server_ip(void)
2117 struct sockaddr *addr;
2124 sk = socket(AF_INET6, SOCK_STREAM, 0);
2126 sk = socket(AF_INET, SOCK_STREAM, 0);
2129 log_err("fio: socket: %s\n", strerror(errno));
2134 if (setsockopt(sk, SOL_SOCKET, SO_REUSEADDR, (void *)&opt, sizeof(opt)) < 0) {
2135 log_err("fio: setsockopt(REUSEADDR): %s\n", strerror(errno));
2141 * Not fatal if fails, so just ignore it if that happens
2143 setsockopt(sk, SOL_SOCKET, SO_REUSEPORT, &opt, sizeof(opt));
2147 void *src = &saddr_in6.sin6_addr;
2149 addr = (struct sockaddr *) &saddr_in6;
2150 socklen = sizeof(saddr_in6);
2151 saddr_in6.sin6_family = AF_INET6;
2152 str = inet_ntop(AF_INET6, src, buf, sizeof(buf));
2154 void *src = &saddr_in.sin_addr;
2156 addr = (struct sockaddr *) &saddr_in;
2157 socklen = sizeof(saddr_in);
2158 saddr_in.sin_family = AF_INET;
2159 str = inet_ntop(AF_INET, src, buf, sizeof(buf));
2162 if (bind(sk, addr, socklen) < 0) {
2163 log_err("fio: bind: %s\n", strerror(errno));
2164 log_info("fio: failed with IPv%c %s\n", use_ipv6 ? '6' : '4', str);
2172 static int fio_init_server_sock(void)
2174 struct sockaddr_un addr;
2179 sk = socket(AF_UNIX, SOCK_STREAM, 0);
2181 log_err("fio: socket: %s\n", strerror(errno));
2187 memset(&addr, 0, sizeof(addr));
2188 addr.sun_family = AF_UNIX;
2189 strncpy(addr.sun_path, bind_sock, sizeof(addr.sun_path) - 1);
2191 len = sizeof(addr.sun_family) + strlen(bind_sock) + 1;
2193 if (bind(sk, (struct sockaddr *) &addr, len) < 0) {
2194 log_err("fio: bind: %s\n", strerror(errno));
2203 static int fio_init_server_connection(void)
2208 dprint(FD_NET, "starting server\n");
2211 sk = fio_init_server_ip();
2213 sk = fio_init_server_sock();
2218 memset(bind_str, 0, sizeof(bind_str));
2227 src = &saddr_in6.sin6_addr;
2230 src = &saddr_in.sin_addr;
2233 p = (char *) inet_ntop(af, src, bind_str, sizeof(bind_str));
2235 sprintf(port, ",%u", fio_net_port);
2239 strncpy(bind_str, port, sizeof(bind_str) - 1);
2241 strncpy(bind_str, bind_sock, sizeof(bind_str) - 1);
2243 log_info("fio: server listening on %s\n", bind_str);
2245 if (listen(sk, 4) < 0) {
2246 log_err("fio: listen: %s\n", strerror(errno));
2254 int fio_server_parse_host(const char *host, int ipv6, struct in_addr *inp,
2255 struct in6_addr *inp6)
2261 ret = inet_pton(AF_INET6, host, inp6);
2263 ret = inet_pton(AF_INET, host, inp);
2266 struct addrinfo *res, hints = {
2267 .ai_family = ipv6 ? AF_INET6 : AF_INET,
2268 .ai_socktype = SOCK_STREAM,
2271 ret = getaddrinfo(host, NULL, &hints, &res);
2273 log_err("fio: failed to resolve <%s> (%s)\n", host,
2279 memcpy(inp6, &((struct sockaddr_in6 *) res->ai_addr)->sin6_addr, sizeof(*inp6));
2281 memcpy(inp, &((struct sockaddr_in *) res->ai_addr)->sin_addr, sizeof(*inp));
2291 * Parse a host/ip/port string. Reads from 'str'.
2296 * *ptr is the host, *port is the port, inp is the destination.
2298 * *ptr is the host, *port is the port, inp6 is the dest, and *ipv6 is 1.
2299 * For local domain sockets:
2300 * *ptr is the filename, *is_sock is 1.
2302 int fio_server_parse_string(const char *str, char **ptr, bool *is_sock,
2303 int *port, struct in_addr *inp,
2304 struct in6_addr *inp6, int *ipv6)
2306 const char *host = str;
2312 *port = fio_net_port;
2315 if (!strncmp(str, "sock:", 5)) {
2316 *ptr = strdup(str + 5);
2323 * Is it ip:<ip or host>:port
2325 if (!strncmp(host, "ip:", 3))
2327 else if (!strncmp(host, "ip4:", 4))
2329 else if (!strncmp(host, "ip6:", 4)) {
2332 } else if (host[0] == ':') {
2333 /* String is :port */
2336 if (!lport || lport > 65535) {
2337 log_err("fio: bad server port %u\n", lport);
2340 /* no hostname given, we are done */
2346 * If no port seen yet, check if there's a last ',' at the end
2349 portp = strchr(host, ',');
2353 lport = atoi(portp);
2354 if (!lport || lport > 65535) {
2355 log_err("fio: bad server port %u\n", lport);
2367 *ptr = strdup(host);
2369 if (fio_server_parse_host(*ptr, *ipv6, inp, inp6)) {
2376 *port = fio_net_port;
2382 * Server arg should be one of:
2384 * sock:/path/to/socket
2388 * Where sock uses unix domain sockets, and ip binds the server to
2389 * a specific interface. If no arguments are given to the server, it
2390 * uses IP and binds to 0.0.0.0.
2393 static int fio_handle_server_arg(void)
2395 int port = fio_net_port;
2399 saddr_in.sin_addr.s_addr = htonl(INADDR_ANY);
2401 if (!fio_server_arg)
2404 ret = fio_server_parse_string(fio_server_arg, &bind_sock, &is_sock,
2405 &port, &saddr_in.sin_addr,
2406 &saddr_in6.sin6_addr, &use_ipv6);
2408 if (!is_sock && bind_sock) {
2414 fio_net_port = port;
2415 saddr_in.sin_port = htons(port);
2416 saddr_in6.sin6_port = htons(port);
2420 static void sig_int(int sig)
2426 static void set_sig_handlers(void)
2428 struct sigaction act = {
2429 .sa_handler = sig_int,
2430 .sa_flags = SA_RESTART,
2433 sigaction(SIGINT, &act, NULL);
2436 void fio_server_destroy_sk_key(void)
2438 pthread_key_delete(sk_out_key);
2441 int fio_server_create_sk_key(void)
2443 if (pthread_key_create(&sk_out_key, NULL)) {
2444 log_err("fio: can't create sk_out backend key\n");
2448 pthread_setspecific(sk_out_key, NULL);
2452 static int fio_server(void)
2456 dprint(FD_NET, "starting server\n");
2458 if (fio_handle_server_arg())
2461 sk = fio_init_server_connection();
2467 ret = accept_loop(sk);
2471 if (fio_server_arg) {
2472 free(fio_server_arg);
2473 fio_server_arg = NULL;
2481 void fio_server_got_signal(int signal)
2483 struct sk_out *sk_out = pthread_getspecific(sk_out_key);
2487 if (signal == SIGPIPE)
2490 log_info("\nfio: terminating on signal %d\n", signal);
2495 static int check_existing_pidfile(const char *pidfile)
2502 if (stat(pidfile, &sb))
2505 f = fopen(pidfile, "r");
2509 if (fread(buf, sb.st_size, 1, f) <= 0) {
2516 if (kill(pid, SIGCONT) < 0)
2517 return errno != ESRCH;
2522 static int write_pid(pid_t pid, const char *pidfile)
2526 fpid = fopen(pidfile, "w");
2528 log_err("fio: failed opening pid file %s\n", pidfile);
2532 fprintf(fpid, "%u\n", (unsigned int) pid);
2538 * If pidfile is specified, background us.
2540 int fio_start_server(char *pidfile)
2547 WSAStartup(MAKEWORD(2, 2), &wsd);
2551 return fio_server();
2553 if (check_existing_pidfile(pidfile)) {
2554 log_err("fio: pidfile %s exists and server appears alive\n",
2562 log_err("fio: failed server fork: %s\n", strerror(errno));
2566 ret = write_pid(pid, pidfile);
2572 openlog("fio", LOG_NDELAY|LOG_NOWAIT|LOG_PID, LOG_USER);
2574 close(STDIN_FILENO);
2575 close(STDOUT_FILENO);
2576 close(STDERR_FILENO);
2588 void fio_server_set_arg(const char *arg)
2590 fio_server_arg = strdup(arg);