7 #include <netinet/in.h>
14 * On-wire encoding is little endian
17 uint16_t version; /* protocol version */
18 uint16_t opcode; /* command opcode */
19 uint32_t flags; /* modifier flags */
20 uint64_t tag; /* passed back on reply */
21 uint32_t pdu_len; /* length of post-cmd layload */
23 * These must be immediately before the payload, anything before
24 * these fields are checksummed.
26 uint16_t cmd_crc16; /* cmd checksum */
27 uint16_t pdu_crc16; /* payload checksum */
28 uint8_t payload[0]; /* payload */
31 struct fio_net_int_cmd {
32 struct fio_net_cmd cmd;
33 struct flist_head list;
41 FIO_SERVER_MAX_PDU = 1024,
46 FIO_NET_CMD_JOBLINE = 4,
50 FIO_NET_CMD_SEND_ETA = 8,
52 FIO_NET_CMD_PROBE = 10,
53 FIO_NET_CMD_START = 11,
54 FIO_NET_CMD_STOP = 12,
59 FIO_NET_CMD_F_MORE = 1UL << 0,
61 /* crc does not include the crc fields */
62 FIO_NET_CMD_CRC_SZ = sizeof(struct fio_net_cmd) -
65 FIO_NET_CLIENT_TIMEOUT = 5000,
69 struct thread_stat ts;
70 struct group_run_stats rs;
74 struct disk_util_stat dus;
75 struct disk_util_agg agg;
78 struct cmd_probe_pdu {
81 uint8_t fio_version[32];
87 struct cmd_single_line_pdu {
94 struct cmd_single_line_pdu options[0];
97 struct cmd_start_pdu {
105 extern int fio_start_server(char *);
106 extern int fio_server_text_output(const char *, size_t);
107 extern int fio_server_log(const char *format, ...);
108 extern int fio_net_send_cmd(int, uint16_t, const void *, off_t, uint64_t);
109 extern int fio_net_send_simple_cmd(int, uint16_t, uint64_t, struct flist_head *);
110 extern void fio_server_set_arg(const char *);
111 extern int fio_server_parse_string(const char *, char **, int *, int *, struct in_addr *, struct in6_addr *, int *);
112 extern const char *fio_server_op(unsigned int);
113 extern void fio_server_got_signal(int);
116 struct group_run_stats;
117 extern void fio_server_send_ts(struct thread_stat *, struct group_run_stats *);
118 extern void fio_server_send_gs(struct group_run_stats *);
119 extern void fio_server_send_du(void);
120 extern void fio_server_idle_loop(void);
122 extern int fio_clients_connect(void);
123 extern int fio_clients_send_ini(const char *);
124 extern int fio_handle_clients(void);
125 extern int fio_client_add(const char *, void **);
126 extern void fio_client_add_cmd_option(void *, const char *);
128 extern int fio_recv_data(int sk, void *p, unsigned int len);
129 extern int fio_send_data(int sk, const void *p, unsigned int len);
130 extern void fio_net_cmd_crc(struct fio_net_cmd *);
131 extern struct fio_net_cmd *fio_net_recv_cmd(int sk);
133 extern int exit_backend;
134 extern int fio_net_port;
136 static inline void fio_init_net_cmd(struct fio_net_cmd *cmd, uint16_t opcode,
137 const void *pdu, uint32_t pdu_len,
140 memset(cmd, 0, sizeof(*cmd));
142 cmd->version = __cpu_to_le16(FIO_SERVER_VER);
143 cmd->opcode = cpu_to_le16(opcode);
144 cmd->tag = cpu_to_le64(tag);
147 cmd->pdu_len = cpu_to_le32(pdu_len);
148 memcpy(&cmd->payload, pdu, pdu_len);