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Add options to have fio latency profile a device
[fio.git] / server.h
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CommitLineData
1#ifndef FIO_SERVER_H
2#define FIO_SERVER_H
3
4#include <inttypes.h>
5#include <string.h>
6#include <sys/time.h>
7#include <netinet/in.h>
8
9#include "stat.h"
10#include "os/os.h"
11#include "diskutil.h"
12
13#define FIO_NET_PORT 8765
14
15/*
16 * On-wire encoding is little endian
17 */
18struct fio_net_cmd {
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 */
24 /*
25 * These must be immediately before the payload, anything before
26 * these fields are checksummed.
27 */
28 uint16_t cmd_crc16; /* cmd checksum */
29 uint16_t pdu_crc16; /* payload checksum */
30 uint8_t payload[]; /* payload */
31};
32
33struct fio_net_cmd_reply {
34 struct flist_head list;
35 struct timeval tv;
36 uint64_t saved_tag;
37 uint16_t opcode;
38};
39
40enum {
41 FIO_SERVER_VER = 28,
42
43 FIO_SERVER_MAX_FRAGMENT_PDU = 1024,
44
45 FIO_NET_CMD_QUIT = 1,
46 FIO_NET_CMD_EXIT = 2,
47 FIO_NET_CMD_JOB = 3,
48 FIO_NET_CMD_JOBLINE = 4,
49 FIO_NET_CMD_TEXT = 5,
50 FIO_NET_CMD_TS = 6,
51 FIO_NET_CMD_GS = 7,
52 FIO_NET_CMD_SEND_ETA = 8,
53 FIO_NET_CMD_ETA = 9,
54 FIO_NET_CMD_PROBE = 10,
55 FIO_NET_CMD_START = 11,
56 FIO_NET_CMD_STOP = 12,
57 FIO_NET_CMD_DU = 13,
58 FIO_NET_CMD_SERVER_START = 14,
59 FIO_NET_CMD_ADD_JOB = 15,
60 FIO_NET_CMD_RUN = 16,
61 FIO_NET_CMD_IOLOG = 17,
62 FIO_NET_CMD_UPDATE_JOB = 18,
63 FIO_NET_CMD_NR = 19,
64
65 FIO_NET_CMD_F_MORE = 1UL << 0,
66
67 /* crc does not include the crc fields */
68 FIO_NET_CMD_CRC_SZ = sizeof(struct fio_net_cmd) -
69 2 * sizeof(uint16_t),
70
71 FIO_NET_NAME_MAX = 256,
72
73 FIO_NET_CLIENT_TIMEOUT = 5000,
74
75 FIO_PROBE_FLAG_ZLIB = 1UL << 0,
76};
77
78struct cmd_ts_pdu {
79 struct thread_stat ts;
80 struct group_run_stats rs;
81};
82
83struct cmd_du_pdu {
84 struct disk_util_stat dus;
85 struct disk_util_agg agg;
86};
87
88struct cmd_client_probe_pdu {
89 uint64_t flags;
90};
91
92struct cmd_probe_reply_pdu {
93 uint8_t hostname[64];
94 uint8_t bigendian;
95 uint8_t fio_version[32];
96 uint8_t os;
97 uint8_t arch;
98 uint8_t bpp;
99 uint32_t cpus;
100 uint64_t flags;
101};
102
103struct cmd_single_line_pdu {
104 uint16_t len;
105 uint8_t text[];
106};
107
108struct cmd_line_pdu {
109 uint16_t lines;
110 uint16_t client_type;
111 struct cmd_single_line_pdu options[];
112};
113
114struct cmd_job_pdu {
115 uint32_t buf_len;
116 uint32_t client_type;
117 uint8_t buf[0];
118};
119
120struct cmd_start_pdu {
121 uint32_t jobs;
122 uint32_t stat_outputs;
123};
124
125struct cmd_end_pdu {
126 uint32_t error;
127 uint32_t signal;
128};
129
130struct cmd_add_job_pdu {
131 uint32_t thread_number;
132 uint32_t groupid;
133 struct thread_options_pack top;
134};
135
136struct cmd_text_pdu {
137 uint32_t level;
138 uint32_t buf_len;
139 uint64_t log_sec;
140 uint64_t log_usec;
141 uint8_t buf[0];
142};
143
144struct cmd_iolog_pdu {
145 uint32_t thread_number;
146 uint32_t nr_samples;
147 uint32_t log_type;
148 uint32_t compressed;
149 uint8_t name[FIO_NET_NAME_MAX];
150 struct io_sample samples[0];
151};
152
153extern int fio_start_server(char *);
154extern int fio_server_text_output(int, const char *, size_t);
155extern int fio_net_send_cmd(int, uint16_t, const void *, off_t, uint64_t *, struct flist_head *);
156extern int fio_net_send_simple_cmd(int, uint16_t, uint64_t, struct flist_head *);
157extern void fio_server_set_arg(const char *);
158extern int fio_server_parse_string(const char *, char **, int *, int *, struct in_addr *, struct in6_addr *, int *);
159extern int fio_server_parse_host(const char *, int *, struct in_addr *, struct in6_addr *);
160extern const char *fio_server_op(unsigned int);
161extern void fio_server_got_signal(int);
162
163struct thread_stat;
164struct group_run_stats;
165extern void fio_server_send_ts(struct thread_stat *, struct group_run_stats *);
166extern void fio_server_send_gs(struct group_run_stats *);
167extern void fio_server_send_du(void);
168extern void fio_server_idle_loop(void);
169
170extern int fio_clients_connect(void);
171extern int fio_clients_send_ini(const char *);
172extern void fio_client_add_cmd_option(void *, const char *);
173extern void fio_client_add_ini_file(void *, const char *);
174
175extern int fio_recv_data(int sk, void *p, unsigned int len);
176extern int fio_send_data(int sk, const void *p, unsigned int len);
177extern void fio_net_cmd_crc(struct fio_net_cmd *);
178extern void fio_net_cmd_crc_pdu(struct fio_net_cmd *, const void *);
179extern struct fio_net_cmd *fio_net_recv_cmd(int sk);
180
181extern int fio_send_iolog(struct thread_data *, struct io_log *, const char *);
182extern void fio_server_send_add_job(struct thread_data *);
183extern void fio_server_send_start(struct thread_data *);
184extern int fio_net_send_stop(int sk, int error, int signal);
185extern int fio_net_send_quit(int sk);
186
187extern int exit_backend;
188extern int fio_net_port;
189
190static inline void __fio_init_net_cmd(struct fio_net_cmd *cmd, uint16_t opcode,
191 uint32_t pdu_len, uint64_t tag)
192{
193 memset(cmd, 0, sizeof(*cmd));
194
195 cmd->version = __cpu_to_le16(FIO_SERVER_VER);
196 cmd->opcode = cpu_to_le16(opcode);
197 cmd->tag = cpu_to_le64(tag);
198 cmd->pdu_len = cpu_to_le32(pdu_len);
199}
200
201
202static inline void fio_init_net_cmd(struct fio_net_cmd *cmd, uint16_t opcode,
203 const void *pdu, uint32_t pdu_len,
204 uint64_t tag)
205{
206 __fio_init_net_cmd(cmd, opcode, pdu_len, tag);
207
208 if (pdu)
209 memcpy(&cmd->payload, pdu, pdu_len);
210}
211
212#endif
fio - Flexible IO Tester