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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 | ||
a64e88da JA |
8 | #include "stat.h" |
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 */ |
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 | |
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, |
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 | }; |
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); |
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); |
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 | |
ddcc0b69 JA |
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) | |
132159a5 | 85 | #elif __BYTE_ORDER == __BIG_ENDIAN |
ddcc0b69 JA |
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) | |
132159a5 JA |
92 | #else |
93 | #error "Endianness not detected" | |
94 | #endif | |
95 | ||
ddcc0b69 JA |
96 | #define le16_to_cpu(val) ({ \ |
97 | uint16_t *__val = &(val); \ | |
98 | __le16_to_cpu(*__val); \ | |
99 | }) | |
100 | #define le32_to_cpu(val) ({ \ | |
101 | uint32_t *__val = &(val); \ | |
102 | __le32_to_cpu(*__val); \ | |
103 | }) | |
104 | #define le64_to_cpu(val) ({ \ | |
105 | uint64_t *__val = &(val); \ | |
106 | __le64_to_cpu(*__val); \ | |
107 | }) | |
108 | #define cpu_to_le16(val) ({ \ | |
109 | uint16_t *__val = &(val); \ | |
110 | __cpu_to_le16(*__val); \ | |
111 | }) | |
112 | #define cpu_to_le32(val) ({ \ | |
113 | uint32_t *__val = &(val); \ | |
114 | __cpu_to_le32(*__val); \ | |
115 | }) | |
116 | #define cpu_to_le64(val) ({ \ | |
117 | uint64_t *__val = &(val); \ | |
118 | __cpu_to_le64(*__val); \ | |
119 | }) | |
120 | ||
4d8f8780 JA |
121 | static inline void fio_init_net_cmd(struct fio_net_cmd *cmd, uint16_t opcode, |
122 | const void *pdu, uint32_t pdu_len) | |
132159a5 JA |
123 | { |
124 | memset(cmd, 0, sizeof(*cmd)); | |
4d8f8780 | 125 | |
ddcc0b69 | 126 | cmd->version = __cpu_to_le16(FIO_SERVER_VER1); |
82fa6b21 | 127 | cmd->opcode = cpu_to_le16(opcode); |
4d8f8780 JA |
128 | |
129 | if (pdu) { | |
130 | cmd->pdu_len = cpu_to_le32(pdu_len); | |
131 | memcpy(&cmd->payload, pdu, pdu_len); | |
132 | } | |
132159a5 | 133 | } |
50d16976 JA |
134 | |
135 | #endif |