7 #include <netinet/in.h>
13 #define FIO_NET_PORT 8765
16 * On-wire encoding is little endian
19 uint16_t version; /* protocol version */
20 uint16_t opcode; /* command opcode */
21 uint32_t flags; /* modifier flags */
22 uint64_t tag; /* passed back on reply */
23 uint32_t pdu_len; /* length of post-cmd layload */
25 * These must be immediately before the payload, anything before
26 * these fields are checksummed.
28 uint16_t cmd_crc16; /* cmd checksum */
29 uint16_t pdu_crc16; /* payload checksum */
30 uint8_t payload[0]; /* payload */
33 struct fio_net_cmd_reply {
34 struct flist_head list;
43 FIO_SERVER_MAX_FRAGMENT_PDU = 1024,
48 FIO_NET_CMD_JOBLINE = 4,
52 FIO_NET_CMD_SEND_ETA = 8,
54 FIO_NET_CMD_PROBE = 10,
55 FIO_NET_CMD_START = 11,
56 FIO_NET_CMD_STOP = 12,
58 FIO_NET_CMD_SERVER_START = 14,
59 FIO_NET_CMD_ADD_JOB = 15,
61 FIO_NET_CMD_IOLOG = 17,
62 FIO_NET_CMD_UPDATE_JOB = 18,
65 FIO_NET_CMD_F_MORE = 1UL << 0,
67 /* crc does not include the crc fields */
68 FIO_NET_CMD_CRC_SZ = sizeof(struct fio_net_cmd) -
71 FIO_NET_NAME_MAX = 256,
73 FIO_NET_CLIENT_TIMEOUT = 5000,
77 struct thread_stat ts;
78 struct group_run_stats rs;
82 struct disk_util_stat dus;
83 struct disk_util_agg agg;
86 struct cmd_probe_pdu {
97 struct cmd_single_line_pdu {
102 struct cmd_line_pdu {
104 uint16_t client_type;
105 struct cmd_single_line_pdu options[0];
110 uint32_t client_type;
114 struct cmd_start_pdu {
123 struct cmd_add_job_pdu {
124 uint32_t thread_number;
126 struct thread_options_pack top;
129 struct cmd_text_pdu {
137 struct cmd_iolog_pdu {
138 uint32_t thread_number;
141 uint8_t name[FIO_NET_NAME_MAX];
142 struct io_sample samples[0];
145 extern int fio_start_server(char *);
146 extern int fio_server_text_output(int, const char *, size_t);
147 extern int fio_net_send_cmd(int, uint16_t, const void *, off_t, uint64_t *, struct flist_head *);
148 extern int fio_net_send_simple_cmd(int, uint16_t, uint64_t, struct flist_head *);
149 extern void fio_server_set_arg(const char *);
150 extern int fio_server_parse_string(const char *, char **, int *, int *, struct in_addr *, struct in6_addr *, int *);
151 extern int fio_server_parse_host(const char *, int *, struct in_addr *, struct in6_addr *);
152 extern const char *fio_server_op(unsigned int);
153 extern void fio_server_got_signal(int);
156 struct group_run_stats;
157 extern void fio_server_send_ts(struct thread_stat *, struct group_run_stats *);
158 extern void fio_server_send_gs(struct group_run_stats *);
159 extern void fio_server_send_du(void);
161 extern int fio_recv_data(int sk, void *p, unsigned int len);
162 extern int fio_send_data(int sk, const void *p, unsigned int len);
163 extern void fio_net_cmd_crc(struct fio_net_cmd *);
164 extern void fio_net_cmd_crc_pdu(struct fio_net_cmd *, const void *);
165 extern struct fio_net_cmd *fio_net_recv_cmd(int sk);
167 extern int fio_send_iolog(struct thread_data *, struct io_log *, const char *);
168 extern void fio_server_send_add_job(struct thread_data *);
169 extern void fio_server_send_start(struct thread_data *);
170 extern int fio_net_send_stop(int sk, int error, int signal);
171 extern int fio_net_send_quit(int sk);
173 extern int exit_backend;
174 extern int fio_net_port;
176 static inline void __fio_init_net_cmd(struct fio_net_cmd *cmd, uint16_t opcode,
177 uint32_t pdu_len, uint64_t tag)
179 memset(cmd, 0, sizeof(*cmd));
181 cmd->version = __cpu_to_le16(FIO_SERVER_VER);
182 cmd->opcode = cpu_to_le16(opcode);
183 cmd->tag = cpu_to_le64(tag);
184 cmd->pdu_len = cpu_to_le32(pdu_len);
188 static inline void fio_init_net_cmd(struct fio_net_cmd *cmd, uint16_t opcode,
189 const void *pdu, uint32_t pdu_len,
192 __fio_init_net_cmd(cmd, opcode, pdu_len, tag);
195 memcpy(&cmd->payload, pdu, pdu_len);