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Jens Axboe50d16972011-09-29 17:45:28 -06001#ifndef FIO_SERVER_H
2#define FIO_SERVER_H
3
Jens Axboe132159a2011-09-30 15:01:32 -06004#include <inttypes.h>
Jens Axboe142575e2011-09-30 17:35:45 -06005#include <string.h>
Jens Axboe132159a2011-09-30 15:01:32 -06006
Jens Axboea64e88d2011-10-03 14:20:01 +02007#include "stat.h"
Jens Axboe610a7302011-10-04 13:53:35 +02008#include "os/os.h"
Jens Axboea64e88d2011-10-03 14:20:01 +02009
Jens Axboe132159a2011-09-30 15:01:32 -060010/*
11 * On-wire encoding is little endian
12 */
13struct fio_net_cmd {
14 uint16_t version; /* protocol version */
15 uint16_t opcode; /* command opcode */
16 uint32_t flags; /* modifier flags */
17 uint64_t serial; /* serial number */
Jens Axboe132159a2011-09-30 15:01:32 -060018 uint32_t pdu_len; /* length of post-cmd layload */
Jens Axboea64e88d2011-10-03 14:20:01 +020019 /*
20 * These must be immediately before the payload, anything before
21 * these fields are checksummed.
22 */
Jens Axboefcee5ff2011-09-30 22:50:39 -060023 uint16_t cmd_crc16; /* cmd checksum */
24 uint16_t pdu_crc16; /* payload checksum */
Jens Axboe132159a2011-09-30 15:01:32 -060025 uint8_t payload[0]; /* payload */
26};
27
28enum {
Jens Axboe178cde92011-10-05 22:14:31 +020029 FIO_SERVER_VER = 2,
Jens Axboe132159a2011-09-30 15:01:32 -060030 FIO_SERVER_VER1 = 1,
Jens Axboe178cde92011-10-05 22:14:31 +020031 FIO_SERVER_VER2 = 2,
Jens Axboe132159a2011-09-30 15:01:32 -060032
Jens Axboe794d69c2011-10-01 08:48:50 -060033 FIO_SERVER_MAX_PDU = 64,
Jens Axboe132159a2011-09-30 15:01:32 -060034
35 FIO_NET_CMD_QUIT = 1,
Jens Axboed7959182011-10-03 11:48:39 +020036 FIO_NET_CMD_EXIT = 2,
37 FIO_NET_CMD_JOB = 3,
Jens Axboe81179ee2011-10-04 12:42:06 +020038 FIO_NET_CMD_JOBLINE = 4,
39 FIO_NET_CMD_TEXT = 5,
40 FIO_NET_CMD_TS = 6,
41 FIO_NET_CMD_GS = 7,
42 FIO_NET_CMD_ETA = 8,
43 FIO_NET_CMD_PROBE = 9,
44 FIO_NET_CMD_START = 10,
45 FIO_NET_CMD_STOP = 11,
Jens Axboe794d69c2011-10-01 08:48:50 -060046
Jens Axboed7959182011-10-03 11:48:39 +020047 FIO_NET_CMD_F_MORE = 1UL << 0,
Jens Axboefcee5ff2011-09-30 22:50:39 -060048
49 /* crc does not include the crc fields */
50 FIO_NET_CMD_CRC_SZ = sizeof(struct fio_net_cmd) -
51 2 * sizeof(uint16_t),
Jens Axboe81179ee2011-10-04 12:42:06 +020052
53 FIO_NET_CMD_JOBLINE_ARGV = 128,
Jens Axboe132159a2011-09-30 15:01:32 -060054};
55
Jens Axboea64e88d2011-10-03 14:20:01 +020056struct cmd_ts_pdu {
57 struct thread_stat ts;
58 struct group_run_stats rs;
59};
60
Jens Axboec28e8e82011-10-04 08:57:39 +020061struct cmd_probe_pdu {
62 uint8_t hostname[64];
Jens Axboe6eb24792011-10-04 15:00:30 +020063 uint8_t bigendian;
Jens Axboec28e8e82011-10-04 08:57:39 +020064 uint8_t fio_major;
65 uint8_t fio_minor;
66 uint8_t fio_patch;
67};
68
Jens Axboe81179ee2011-10-04 12:42:06 +020069struct cmd_line_pdu {
70 uint16_t argc;
71 uint8_t argv[FIO_NET_CMD_JOBLINE_ARGV][64];
72};
73
Jens Axboee46d8092011-10-03 09:11:02 +020074extern int fio_start_server(int);
Jens Axboe142575e2011-09-30 17:35:45 -060075extern int fio_server_text_output(const char *, unsigned int len);
76extern int fio_server_log(const char *format, ...);
Jens Axboea64e88d2011-10-03 14:20:01 +020077extern int fio_net_send_cmd(int, uint16_t, const void *, off_t);
Jens Axboecc0df002011-10-03 20:53:32 +020078extern int fio_net_send_simple_cmd(int sk, uint16_t opcode, uint64_t serial);
Jens Axboebebe6392011-10-07 10:00:51 +020079extern void fio_server_set_arg(const char *);
80extern int fio_server_parse_string(const char *, char **, int *, int *, struct in_addr *);
Jens Axboea64e88d2011-10-03 14:20:01 +020081
82struct thread_stat;
83struct group_run_stats;
84extern void fio_server_send_ts(struct thread_stat *, struct group_run_stats *);
85extern void fio_server_send_gs(struct group_run_stats *);
Jens Axboecf451d12011-10-03 16:48:30 +020086extern void fio_server_send_status(void);
Jens Axboecc0df002011-10-03 20:53:32 +020087extern void fio_server_idle_loop(void);
Jens Axboe132159a2011-09-30 15:01:32 -060088
Jens Axboea37f69b2011-10-01 12:24:21 -060089extern int fio_clients_connect(void);
90extern int fio_clients_send_ini(const char *);
Jens Axboe37db14f2011-09-30 17:00:42 -060091extern int fio_handle_clients(void);
Jens Axboebebe6392011-10-07 10:00:51 +020092extern int fio_client_add(const char *, void **);
93extern int fio_client_add_cmd_option(void *, const char *);
Jens Axboe132159a2011-09-30 15:01:32 -060094
95extern int fio_recv_data(int sk, void *p, unsigned int len);
96extern int fio_send_data(int sk, const void *p, unsigned int len);
97extern void fio_net_cmd_crc(struct fio_net_cmd *);
Jens Axboee951bdc2011-10-05 21:58:45 +020098extern struct fio_net_cmd *fio_net_recv_cmd(int sk);
Jens Axboe132159a2011-09-30 15:01:32 -060099
Jens Axboe009b1be2011-09-29 18:27:02 -0600100extern int exit_backend;
Jens Axboe132159a2011-09-30 15:01:32 -0600101extern int fio_net_port;
102
Jens Axboe4d8f8782011-09-30 22:24:17 -0600103static inline void fio_init_net_cmd(struct fio_net_cmd *cmd, uint16_t opcode,
104 const void *pdu, uint32_t pdu_len)
Jens Axboe132159a2011-09-30 15:01:32 -0600105{
106 memset(cmd, 0, sizeof(*cmd));
Jens Axboe4d8f8782011-09-30 22:24:17 -0600107
Jens Axboe178cde92011-10-05 22:14:31 +0200108 cmd->version = __cpu_to_le16(FIO_SERVER_VER2);
Jens Axboe82fa6b22011-09-30 22:29:08 -0600109 cmd->opcode = cpu_to_le16(opcode);
Jens Axboe4d8f8782011-09-30 22:24:17 -0600110
111 if (pdu) {
112 cmd->pdu_len = cpu_to_le32(pdu_len);
113 memcpy(&cmd->payload, pdu, pdu_len);
114 }
Jens Axboe132159a2011-09-30 15:01:32 -0600115}
Jens Axboe50d16972011-09-29 17:45:28 -0600116
117#endif