[fio.git] / server.h

#ifndef FIO_SERVER_H
#define FIO_SERVER_H

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

#include "stat.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_ACK		= 4,
	FIO_NET_CMD_NAK		= 5,
	FIO_NET_CMD_TEXT	= 6,
	FIO_NET_CMD_TS		= 7,
	FIO_NET_CMD_GS		= 8,

	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),
};

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

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);

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 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 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);

extern int exit_backend;
extern int fio_net_port;

#if __BYTE_ORDER == __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)
#elif __BYTE_ORDER == __BIG_ENDIAN
#define le16_to_cpu(x)		__bswap_16(x)
#define le32_to_cpu(x)		__bswap_32(x)
#define le64_to_cpu(x)		__bswap_64(x)
#define cpu_to_le16(x)		__bswap_16(x)
#define cpu_to_le32(x)		__bswap_32(x)
#define cpu_to_le64(x)		__bswap_64(x)
#else
#error "Endianness not detected"
#endif

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 JA	6	#include <endian.h>
132159a5 JA	7
a64e88da JA	8	#include "stat.h"
a64e88da JA	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,
	36	FIO_NET_CMD_JOB = 3,
	37	FIO_NET_CMD_ACK = 4,
	38	FIO_NET_CMD_NAK = 5,
	39	FIO_NET_CMD_TEXT = 6,
a64e88da JA	40	FIO_NET_CMD_TS = 7,
a64e88da JA	41	FIO_NET_CMD_GS = 8,
794d69ca	42
d7959186	43	FIO_NET_CMD_F_MORE = 1UL << 0,
fcee5ff6 JA	44
	45	/* crc does not include the crc fields */
	46	FIO_NET_CMD_CRC_SZ = sizeof(struct fio_net_cmd) -
	47	2 * sizeof(uint16_t),
132159a5 JA	48	};
132159a5 JA	49
a64e88da JA	50	struct cmd_ts_pdu {
	51	struct thread_stat ts;
	52	struct group_run_stats rs;
	53	};
	54
e46d8091	55	extern int fio_start_server(int);
142575e6 JA	56	extern int fio_server_text_output(const char *, unsigned int len);
142575e6 JA	57	extern int fio_server_log(const char *format, ...);
a64e88da JA	58	extern int fio_net_send_cmd(int, uint16_t, const void *, off_t);
	59
	60	struct thread_stat;
	61	struct group_run_stats;
	62	extern void fio_server_send_ts(struct thread_stat , struct group_run_stats );
	63	extern void fio_server_send_gs(struct group_run_stats *);
132159a5	64
a37f69b7 JA	65	extern int fio_clients_connect(void);
a37f69b7 JA	66	extern int fio_clients_send_ini(const char *);
37db14fe	67	extern int fio_handle_clients(void);
a37f69b7	68	extern void fio_client_add(const char *);
132159a5 JA	69
	70	extern int fio_recv_data(int sk, void *p, unsigned int len);
	71	extern int fio_send_data(int sk, const void *p, unsigned int len);
	72	extern void fio_net_cmd_crc(struct fio_net_cmd *);
a64e88da	73	extern struct fio_net_cmd *fio_net_recv_cmd(int sk);
132159a5	74
009b1be4	75	extern int exit_backend;
132159a5 JA	76	extern int fio_net_port;
	77
	78	#if __BYTE_ORDER == __LITTLE_ENDIAN
	79	#define le16_to_cpu(x) (x)
	80	#define le32_to_cpu(x) (x)
	81	#define le64_to_cpu(x) (x)
	82	#define cpu_to_le16(x) (x)
	83	#define cpu_to_le32(x) (x)
	84	#define cpu_to_le64(x) (x)
	85	#elif __BYTE_ORDER == __BIG_ENDIAN
	86	#define le16_to_cpu(x) __bswap_16(x)
	87	#define le32_to_cpu(x) __bswap_32(x)
	88	#define le64_to_cpu(x) __bswap_64(x)
	89	#define cpu_to_le16(x) __bswap_16(x)
	90	#define cpu_to_le32(x) __bswap_32(x)
	91	#define cpu_to_le64(x) __bswap_64(x)
	92	#else
	93	#error "Endianness not detected"
	94	#endif
	95
4d8f8780 JA	96	static inline void fio_init_net_cmd(struct fio_net_cmd *cmd, uint16_t opcode,
4d8f8780 JA	97	const void *pdu, uint32_t pdu_len)
132159a5 JA	98	{
132159a5 JA	99	memset(cmd, 0, sizeof(*cmd));
4d8f8780 JA	100
4d8f8780 JA	101	cmd->version = cpu_to_le16(FIO_SERVER_VER1);
82fa6b21	102	cmd->opcode = cpu_to_le16(opcode);
4d8f8780 JA	103
	104	if (pdu) {
	105	cmd->pdu_len = cpu_to_le32(pdu_len);
	106	memcpy(&cmd->payload, pdu, pdu_len);
	107	}
132159a5	108	}
50d16976 JA	109
50d16976 JA	110	#endif