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 struct sk_out { 16 unsigned int refs; /* frees sk_out when it drops to zero. 17 * protected by below ->lock */ 18 19 int sk; /* socket fd to talk to client */ 20 struct fio_mutex lock; /* protects ref and below list */ 21 struct flist_head list; /* list of pending transmit work */ 22 struct fio_mutex wait; /* wake backend when items added to list */ 23 struct fio_mutex xmit; /* held while sending data */ 24 }; 25 26 /* 27 * On-wire encoding is little endian 28 */ 29 struct fio_net_cmd { 30 uint16_t version; /* protocol version */ 31 uint16_t opcode; /* command opcode */ 32 uint32_t flags; /* modifier flags */ 33 uint64_t tag; /* passed back on reply */ 34 uint32_t pdu_len; /* length of post-cmd layload */ 35 /* 36 * These must be immediately before the payload, anything before 37 * these fields are checksummed. 38 */ 39 uint16_t cmd_crc16; /* cmd checksum */ 40 uint16_t pdu_crc16; /* payload checksum */ 41 uint8_t payload[]; /* payload */ 42 }; 43 44 struct fio_net_cmd_reply { 45 struct flist_head list; 46 struct timeval tv; 47 uint64_t saved_tag; 48 uint16_t opcode; 49 }; 50 51 enum { 52 FIO_SERVER_VER = 61, 53 54 FIO_SERVER_MAX_FRAGMENT_PDU = 1024, 55 FIO_SERVER_MAX_CMD_MB = 2048, 56 57 FIO_NET_CMD_QUIT = 1, 58 FIO_NET_CMD_EXIT = 2, 59 FIO_NET_CMD_JOB = 3, 60 FIO_NET_CMD_JOBLINE = 4, 61 FIO_NET_CMD_TEXT = 5, 62 FIO_NET_CMD_TS = 6, 63 FIO_NET_CMD_GS = 7, 64 FIO_NET_CMD_SEND_ETA = 8, 65 FIO_NET_CMD_ETA = 9, 66 FIO_NET_CMD_PROBE = 10, 67 FIO_NET_CMD_START = 11, 68 FIO_NET_CMD_STOP = 12, 69 FIO_NET_CMD_DU = 13, 70 FIO_NET_CMD_SERVER_START = 14, 71 FIO_NET_CMD_ADD_JOB = 15, 72 FIO_NET_CMD_RUN = 16, 73 FIO_NET_CMD_IOLOG = 17, 74 FIO_NET_CMD_UPDATE_JOB = 18, 75 FIO_NET_CMD_LOAD_FILE = 19, 76 FIO_NET_CMD_VTRIGGER = 20, 77 FIO_NET_CMD_SENDFILE = 21, 78 FIO_NET_CMD_JOB_OPT = 22, 79 FIO_NET_CMD_NR = 23, 80 81 FIO_NET_CMD_F_MORE = 1UL << 0, 82 83 /* crc does not include the crc fields */ 84 FIO_NET_CMD_CRC_SZ = sizeof(struct fio_net_cmd) - 85 2 * sizeof(uint16_t), 86 87 FIO_NET_NAME_MAX = 256, 88 89 FIO_NET_CLIENT_TIMEOUT = 5000, 90 91 FIO_PROBE_FLAG_ZLIB = 1UL << 0, 92 }; 93 94 struct cmd_sendfile { 95 uint8_t path[FIO_NET_NAME_MAX]; 96 }; 97 98 struct cmd_sendfile_reply { 99 uint32_t size; 100 uint32_t error; 101 uint8_t data[0]; 102 }; 103 104 /* 105 * Client sends this to server on VTRIGGER, server sends back a full 106 * all_io_list structure. 107 */ 108 struct cmd_vtrigger_pdu { 109 uint16_t len; 110 uint8_t cmd[]; 111 }; 112 113 struct cmd_load_file_pdu { 114 uint16_t name_len; 115 uint16_t client_type; 116 uint8_t file[]; 117 }; 118 119 struct cmd_ts_pdu { 120 struct thread_stat ts; 121 struct group_run_stats rs; 122 }; 123 124 struct cmd_du_pdu { 125 struct disk_util_stat dus; 126 struct disk_util_agg agg; 127 }; 128 129 struct cmd_client_probe_pdu { 130 uint64_t flags; 131 uint8_t server[128]; 132 }; 133 134 struct cmd_probe_reply_pdu { 135 uint8_t hostname[64]; 136 uint8_t bigendian; 137 uint8_t fio_version[32]; 138 uint8_t os; 139 uint8_t arch; 140 uint8_t bpp; 141 uint32_t cpus; 142 uint64_t flags; 143 }; 144 145 struct cmd_single_line_pdu { 146 uint16_t len; 147 uint8_t text[]; 148 }; 149 150 struct cmd_line_pdu { 151 uint16_t lines; 152 uint16_t client_type; 153 struct cmd_single_line_pdu options[]; 154 }; 155 156 struct cmd_job_pdu { 157 uint32_t buf_len; 158 uint32_t client_type; 159 uint8_t buf[0]; 160 }; 161 162 struct cmd_start_pdu { 163 uint32_t jobs; 164 uint32_t stat_outputs; 165 }; 166 167 struct cmd_end_pdu { 168 uint32_t error; 169 uint32_t signal; 170 }; 171 172 struct cmd_add_job_pdu { 173 uint32_t thread_number; 174 uint32_t groupid; 175 struct thread_options_pack top; 176 }; 177 178 struct cmd_text_pdu { 179 uint32_t level; 180 uint32_t buf_len; 181 uint64_t log_sec; 182 uint64_t log_usec; 183 uint8_t buf[0]; 184 }; 185 186 enum { 187 XMIT_COMPRESSED = 1U, 188 STORE_COMPRESSED = 2U, 189 }; 190 191 struct cmd_iolog_pdu { 192 uint64_t nr_samples; 193 uint32_t thread_number; 194 uint32_t log_type; 195 uint32_t compressed; 196 uint32_t log_offset; 197 uint32_t log_hist_coarseness; 198 uint8_t name[FIO_NET_NAME_MAX]; 199 struct io_sample samples[0]; 200 }; 201 202 struct cmd_job_option { 203 uint16_t global; 204 uint16_t truncated; 205 uint32_t groupid; 206 uint8_t name[64]; 207 uint8_t value[128]; 208 }; 209 210 extern int fio_start_server(char *); 211 extern int fio_server_text_output(int, const char *, size_t); 212 extern int fio_net_send_cmd(int, uint16_t, const void *, off_t, uint64_t *, struct flist_head *); 213 extern int fio_net_send_simple_cmd(int, uint16_t, uint64_t, struct flist_head *); 214 extern void fio_server_set_arg(const char *); 215 extern int fio_server_parse_string(const char *, char **, int *, int *, struct in_addr *, struct in6_addr *, int *); 216 extern int fio_server_parse_host(const char *, int, struct in_addr *, struct in6_addr *); 217 extern const char *fio_server_op(unsigned int); 218 extern void fio_server_got_signal(int); 219 220 struct thread_stat; 221 struct group_run_stats; 222 extern void fio_server_send_ts(struct thread_stat *, struct group_run_stats *); 223 extern void fio_server_send_gs(struct group_run_stats *); 224 extern void fio_server_send_du(void); 225 extern void fio_server_send_job_options(struct flist_head *, unsigned int); 226 extern int fio_server_get_verify_state(const char *, int, void **); 227 228 extern struct fio_net_cmd *fio_net_recv_cmd(int sk, bool wait); 229 230 extern int fio_send_iolog(struct thread_data *, struct io_log *, const char *); 231 extern void fio_server_send_add_job(struct thread_data *); 232 extern void fio_server_send_start(struct thread_data *); 233 extern int fio_net_send_quit(int sk); 234 235 extern int fio_server_create_sk_key(void); 236 extern void fio_server_destroy_sk_key(void); 237 238 extern int exit_backend; 239 extern int fio_net_port; 240 241 #endif 242