[fio.git] / server.h

#ifndef FIO_SERVER_H
#define FIO_SERVER_H

#include <inttypes.h>
#include <string.h>

#include "stat.h"
#include "os/os.h"

/*
 * On-wire encoding is little endian
 */
struct fio_net_cmd {
	uint16_t version;	/* protocol version */
	uint16_t opcode;	/* command opcode */
	uint32_t flags;		/* modifier flags */
	uint64_t serial;	/* serial number */
	uint32_t pdu_len;	/* length of post-cmd layload */
	/*
	 * These must be immediately before the payload, anything before
	 * these fields are checksummed.
	 */
	uint16_t cmd_crc16;	/* cmd checksum */
	uint16_t pdu_crc16;	/* payload checksum */
	uint8_t payload[0];	/* payload */
};

enum {
	FIO_SERVER_VER		= 1,
	FIO_SERVER_VER1		= 1,

	FIO_SERVER_MAX_PDU	= 64,

	FIO_NET_CMD_QUIT	= 1,
	FIO_NET_CMD_EXIT	= 2,
	FIO_NET_CMD_JOB		= 3,
	FIO_NET_CMD_JOBLINE	= 4,
	FIO_NET_CMD_TEXT	= 5,
	FIO_NET_CMD_TS		= 6,
	FIO_NET_CMD_GS		= 7,
	FIO_NET_CMD_ETA		= 8,
	FIO_NET_CMD_PROBE	= 9,
	FIO_NET_CMD_START	= 10,
	FIO_NET_CMD_STOP	= 11,

	FIO_NET_CMD_F_MORE	= 1UL << 0,

	/* crc does not include the crc fields */
	FIO_NET_CMD_CRC_SZ	= sizeof(struct fio_net_cmd) -
					2 * sizeof(uint16_t),

	FIO_NET_CMD_JOBLINE_ARGV	= 128,
};

struct cmd_ts_pdu {
	struct thread_stat ts;
	struct group_run_stats rs;
};

struct cmd_probe_pdu {
	uint8_t hostname[64];
	uint8_t fio_major;
	uint8_t fio_minor;
	uint8_t fio_patch;
};

struct cmd_line_pdu {
	uint16_t argc;
	uint8_t argv[FIO_NET_CMD_JOBLINE_ARGV][64];
};

extern int fio_start_server(int);
extern int fio_server_text_output(const char *, unsigned int len);
extern int fio_server_log(const char *format, ...);
extern int fio_net_send_cmd(int, uint16_t, const void *, off_t);
extern int fio_net_send_simple_cmd(int sk, uint16_t opcode, uint64_t serial);

struct thread_stat;
struct group_run_stats;
extern void fio_server_send_ts(struct thread_stat *, struct group_run_stats *);
extern void fio_server_send_gs(struct group_run_stats *);
extern void fio_server_send_status(void);
extern void fio_server_idle_loop(void);

extern int fio_clients_connect(void);
extern int fio_clients_send_ini(const char *);
extern int fio_handle_clients(void);
extern void fio_client_add(const char *);
extern void fio_client_add_cmd_option(const char *, const char *);

extern int fio_recv_data(int sk, void *p, unsigned int len);
extern int fio_send_data(int sk, const void *p, unsigned int len);
extern void fio_net_cmd_crc(struct fio_net_cmd *);
extern struct fio_net_cmd *fio_net_recv_cmd(int sk, int block);

extern int exit_backend;
extern int fio_net_port;

#ifdef FIO_LITTLE_ENDIAN
#define __le16_to_cpu(x)		(x)
#define __le32_to_cpu(x)		(x)
#define __le64_to_cpu(x)		(x)
#define __cpu_to_le16(x)		(x)
#define __cpu_to_le32(x)		(x)
#define __cpu_to_le64(x)		(x)
#else
#define __le16_to_cpu(x)		fio_swap16(x)
#define __le32_to_cpu(x)		fio_swap_2(x)
#define __le64_to_cpu(x)		fio_swap64(x)
#define __cpu_to_le16(x)		fio_swap16(x)
#define __cpu_to_le32(x)		fio_swap32(x)
#define __cpu_to_le64(x)		fio_swap64(x)
#endif

#define le16_to_cpu(val) ({			\
	uint16_t *__val = &(val);		\
	__le16_to_cpu(*__val);			\
})
#define le32_to_cpu(val) ({			\
	uint32_t *__val = &(val);		\
	__le32_to_cpu(*__val);			\
})
#define le64_to_cpu(val) ({			\
	uint64_t *__val = &(val);		\
	__le64_to_cpu(*__val);			\
})
#define cpu_to_le16(val) ({			\
	uint16_t *__val = &(val);		\
	__cpu_to_le16(*__val);			\
})
#define cpu_to_le32(val) ({			\
	uint32_t *__val = &(val);		\
	__cpu_to_le32(*__val);			\
})
#define cpu_to_le64(val) ({			\
	uint64_t *__val = &(val);		\
	__cpu_to_le64(*__val);			\
})

static inline void fio_init_net_cmd(struct fio_net_cmd *cmd, uint16_t opcode,
				    const void *pdu, uint32_t pdu_len)
{
	memset(cmd, 0, sizeof(*cmd));

	cmd->version	= __cpu_to_le16(FIO_SERVER_VER1);
	cmd->opcode	= cpu_to_le16(opcode);

	if (pdu) {
		cmd->pdu_len	= cpu_to_le32(pdu_len);
		memcpy(&cmd->payload, pdu, pdu_len);
	}
}

#endif
Commit	Line	Data
50d16976 JA	1	#ifndef FIO_SERVER_H
	2	#define FIO_SERVER_H
	3
132159a5	4	#include <inttypes.h>
142575e6	5	#include <string.h>
132159a5	6
a64e88da	7	#include "stat.h"
610a730c	8	#include "os/os.h"
a64e88da	9
132159a5 JA	10	/*
	11	* On-wire encoding is little endian
	12	*/
	13	struct 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 */
132159a5	18	uint32_t pdu_len; /* length of post-cmd layload */
a64e88da JA	19	/*
	20	* These must be immediately before the payload, anything before
	21	* these fields are checksummed.
	22	*/
fcee5ff6 JA	23	uint16_t cmd_crc16; /* cmd checksum */
fcee5ff6 JA	24	uint16_t pdu_crc16; /* payload checksum */
132159a5 JA	25	uint8_t payload[0]; /* payload */
	26	};
	27
	28	enum {
	29	FIO_SERVER_VER = 1,
	30	FIO_SERVER_VER1 = 1,
	31
794d69ca	32	FIO_SERVER_MAX_PDU = 64,
132159a5 JA	33
132159a5 JA	34	FIO_NET_CMD_QUIT = 1,
d7959186 JA	35	FIO_NET_CMD_EXIT = 2,
d7959186 JA	36	FIO_NET_CMD_JOB = 3,
81179eec JA	37	FIO_NET_CMD_JOBLINE = 4,
	38	FIO_NET_CMD_TEXT = 5,
	39	FIO_NET_CMD_TS = 6,
	40	FIO_NET_CMD_GS = 7,
	41	FIO_NET_CMD_ETA = 8,
	42	FIO_NET_CMD_PROBE = 9,
	43	FIO_NET_CMD_START = 10,
	44	FIO_NET_CMD_STOP = 11,
794d69ca	45
d7959186	46	FIO_NET_CMD_F_MORE = 1UL << 0,
fcee5ff6 JA	47
	48	/* crc does not include the crc fields */
	49	FIO_NET_CMD_CRC_SZ = sizeof(struct fio_net_cmd) -
	50	2 * sizeof(uint16_t),
81179eec JA	51
81179eec JA	52	FIO_NET_CMD_JOBLINE_ARGV = 128,
132159a5 JA	53	};
132159a5 JA	54
a64e88da JA	55	struct cmd_ts_pdu {
	56	struct thread_stat ts;
	57	struct group_run_stats rs;
	58	};
	59
c28e8e8c JA	60	struct cmd_probe_pdu {
	61	uint8_t hostname[64];
	62	uint8_t fio_major;
	63	uint8_t fio_minor;
	64	uint8_t fio_patch;
	65	};
	66
81179eec JA	67	struct cmd_line_pdu {
	68	uint16_t argc;
	69	uint8_t argv[FIO_NET_CMD_JOBLINE_ARGV][64];
	70	};
	71
e46d8091	72	extern int fio_start_server(int);
142575e6 JA	73	extern int fio_server_text_output(const char *, unsigned int len);
142575e6 JA	74	extern int fio_server_log(const char *format, ...);
a64e88da	75	extern int fio_net_send_cmd(int, uint16_t, const void *, off_t);
cc0df00a	76	extern int fio_net_send_simple_cmd(int sk, uint16_t opcode, uint64_t serial);
a64e88da JA	77
	78	struct thread_stat;
	79	struct group_run_stats;
	80	extern void fio_server_send_ts(struct thread_stat , struct group_run_stats );
	81	extern void fio_server_send_gs(struct group_run_stats *);
cf451d1e	82	extern void fio_server_send_status(void);
cc0df00a	83	extern void fio_server_idle_loop(void);
132159a5	84
a37f69b7 JA	85	extern int fio_clients_connect(void);
a37f69b7 JA	86	extern int fio_clients_send_ini(const char *);
37db14fe	87	extern int fio_handle_clients(void);
a37f69b7	88	extern void fio_client_add(const char *);
81179eec	89	extern void fio_client_add_cmd_option(const char , const char );
132159a5 JA	90
	91	extern int fio_recv_data(int sk, void *p, unsigned int len);
	92	extern int fio_send_data(int sk, const void *p, unsigned int len);
	93	extern void fio_net_cmd_crc(struct fio_net_cmd *);
70e0c316	94	extern struct fio_net_cmd *fio_net_recv_cmd(int sk, int block);
132159a5	95
009b1be4	96	extern int exit_backend;
132159a5 JA	97	extern int fio_net_port;
132159a5 JA	98
610a730c	99	#ifdef FIO_LITTLE_ENDIAN
ddcc0b69 JA	100	#define __le16_to_cpu(x) (x)
	101	#define __le32_to_cpu(x) (x)
	102	#define __le64_to_cpu(x) (x)
	103	#define __cpu_to_le16(x) (x)
	104	#define __cpu_to_le32(x) (x)
	105	#define __cpu_to_le64(x) (x)
610a730c	106	#else
ff245192 JA	107	#define __le16_to_cpu(x) fio_swap16(x)
	108	#define __le32_to_cpu(x) fio_swap_2(x)
	109	#define __le64_to_cpu(x) fio_swap64(x)
	110	#define __cpu_to_le16(x) fio_swap16(x)
	111	#define __cpu_to_le32(x) fio_swap32(x)
	112	#define __cpu_to_le64(x) fio_swap64(x)
132159a5 JA	113	#endif
132159a5 JA	114
ddcc0b69 JA	115	#define le16_to_cpu(val) ({ \
	116	uint16_t *__val = &(val); \
	117	__le16_to_cpu(*__val); \
	118	})
	119	#define le32_to_cpu(val) ({ \
	120	uint32_t *__val = &(val); \
	121	__le32_to_cpu(*__val); \
	122	})
	123	#define le64_to_cpu(val) ({ \
	124	uint64_t *__val = &(val); \
	125	__le64_to_cpu(*__val); \
	126	})
	127	#define cpu_to_le16(val) ({ \
	128	uint16_t *__val = &(val); \
	129	__cpu_to_le16(*__val); \
	130	})
	131	#define cpu_to_le32(val) ({ \
	132	uint32_t *__val = &(val); \
	133	__cpu_to_le32(*__val); \
	134	})
	135	#define cpu_to_le64(val) ({ \
	136	uint64_t *__val = &(val); \
	137	__cpu_to_le64(*__val); \
	138	})
	139
4d8f8780 JA	140	static inline void fio_init_net_cmd(struct fio_net_cmd *cmd, uint16_t opcode,
4d8f8780 JA	141	const void *pdu, uint32_t pdu_len)
132159a5 JA	142	{
132159a5 JA	143	memset(cmd, 0, sizeof(*cmd));
4d8f8780	144
ddcc0b69	145	cmd->version = __cpu_to_le16(FIO_SERVER_VER1);
82fa6b21	146	cmd->opcode = cpu_to_le16(opcode);
4d8f8780 JA	147
	148	if (pdu) {
	149	cmd->pdu_len = cpu_to_le32(pdu_len);
	150	memcpy(&cmd->payload, pdu, pdu_len);
	151	}
132159a5	152	}
50d16976 JA	153
50d16976 JA	154	#endif