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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> |
7 | ||
8 | /* | |
9 | * On-wire encoding is little endian | |
10 | */ | |
11 | struct fio_net_cmd { | |
12 | uint16_t version; /* protocol version */ | |
13 | uint16_t opcode; /* command opcode */ | |
14 | uint32_t flags; /* modifier flags */ | |
15 | uint64_t serial; /* serial number */ | |
132159a5 | 16 | uint32_t pdu_len; /* length of post-cmd layload */ |
fcee5ff6 JA |
17 | uint16_t cmd_crc16; /* cmd checksum */ |
18 | uint16_t pdu_crc16; /* payload checksum */ | |
132159a5 JA |
19 | uint8_t payload[0]; /* payload */ |
20 | }; | |
21 | ||
22 | enum { | |
23 | FIO_SERVER_VER = 1, | |
24 | FIO_SERVER_VER1 = 1, | |
25 | ||
794d69ca | 26 | FIO_SERVER_MAX_PDU = 64, |
132159a5 JA |
27 | |
28 | FIO_NET_CMD_QUIT = 1, | |
29 | FIO_NET_CMD_JOB = 2, | |
794d69ca JA |
30 | FIO_NET_CMD_ACK = 3, |
31 | FIO_NET_CMD_NAK = 4, | |
32 | FIO_NET_CMD_TEXT = 5, | |
33 | ||
34 | FIO_NET_CMD_F_MORE = 1, | |
fcee5ff6 JA |
35 | |
36 | /* crc does not include the crc fields */ | |
37 | FIO_NET_CMD_CRC_SZ = sizeof(struct fio_net_cmd) - | |
38 | 2 * sizeof(uint16_t), | |
132159a5 JA |
39 | }; |
40 | ||
50d16976 | 41 | extern int fio_server(void); |
142575e6 JA |
42 | extern int fio_server_text_output(const char *, unsigned int len); |
43 | extern int fio_server_log(const char *format, ...); | |
794d69ca | 44 | extern int fio_net_send_cmd(int, uint16_t, const char *, off_t); |
132159a5 | 45 | |
a37f69b7 JA |
46 | extern int fio_clients_connect(void); |
47 | extern int fio_clients_send_ini(const char *); | |
37db14fe | 48 | extern int fio_handle_clients(void); |
a37f69b7 | 49 | extern void fio_client_add(const char *); |
132159a5 JA |
50 | |
51 | extern int fio_recv_data(int sk, void *p, unsigned int len); | |
52 | extern int fio_send_data(int sk, const void *p, unsigned int len); | |
53 | extern void fio_net_cmd_crc(struct fio_net_cmd *); | |
37db14fe | 54 | extern struct fio_net_cmd *fio_net_cmd_read(int sk); |
132159a5 | 55 | |
009b1be4 | 56 | extern int exit_backend; |
132159a5 JA |
57 | extern int fio_net_port; |
58 | ||
59 | #if __BYTE_ORDER == __LITTLE_ENDIAN | |
60 | #define le16_to_cpu(x) (x) | |
61 | #define le32_to_cpu(x) (x) | |
62 | #define le64_to_cpu(x) (x) | |
63 | #define cpu_to_le16(x) (x) | |
64 | #define cpu_to_le32(x) (x) | |
65 | #define cpu_to_le64(x) (x) | |
66 | #elif __BYTE_ORDER == __BIG_ENDIAN | |
67 | #define le16_to_cpu(x) __bswap_16(x) | |
68 | #define le32_to_cpu(x) __bswap_32(x) | |
69 | #define le64_to_cpu(x) __bswap_64(x) | |
70 | #define cpu_to_le16(x) __bswap_16(x) | |
71 | #define cpu_to_le32(x) __bswap_32(x) | |
72 | #define cpu_to_le64(x) __bswap_64(x) | |
73 | #else | |
74 | #error "Endianness not detected" | |
75 | #endif | |
76 | ||
4d8f8780 JA |
77 | static inline void fio_init_net_cmd(struct fio_net_cmd *cmd, uint16_t opcode, |
78 | const void *pdu, uint32_t pdu_len) | |
132159a5 JA |
79 | { |
80 | memset(cmd, 0, sizeof(*cmd)); | |
4d8f8780 JA |
81 | |
82 | cmd->version = cpu_to_le16(FIO_SERVER_VER1); | |
82fa6b21 | 83 | cmd->opcode = cpu_to_le16(opcode); |
4d8f8780 JA |
84 | |
85 | if (pdu) { | |
86 | cmd->pdu_len = cpu_to_le32(pdu_len); | |
87 | memcpy(&cmd->payload, pdu, pdu_len); | |
88 | } | |
132159a5 | 89 | } |
50d16976 JA |
90 | |
91 | #endif |