projects / fio.git / blame
| 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> |
| 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, | |
| d7959186 JA |
29 | FIO_NET_CMD_EXIT = 2, |
| 30 | FIO_NET_CMD_JOB = 3, | |
| 31 | FIO_NET_CMD_ACK = 4, | |
| 32 | FIO_NET_CMD_NAK = 5, | |
| 33 | FIO_NET_CMD_TEXT = 6, | |
| 794d69ca | 34 | |
| d7959186 | 35 | FIO_NET_CMD_F_MORE = 1UL << 0, |
| fcee5ff6 JA |
36 | |
| 37 | /* crc does not include the crc fields */ | |
| 38 | FIO_NET_CMD_CRC_SZ = sizeof(struct fio_net_cmd) - | |
| 39 | 2 * sizeof(uint16_t), | |
| 132159a5 JA |
40 | }; |
| 41 | ||
| e46d8091 | 42 | extern int fio_start_server(int); |
| 142575e6 JA |
43 | extern int fio_server_text_output(const char *, unsigned int len); |
| 44 | extern int fio_server_log(const char *format, ...); | |
| 794d69ca | 45 | extern int fio_net_send_cmd(int, uint16_t, const char *, off_t); |
| 132159a5 | 46 | |
| a37f69b7 JA |
47 | extern int fio_clients_connect(void); |
| 48 | extern int fio_clients_send_ini(const char *); | |
| 37db14fe | 49 | extern int fio_handle_clients(void); |
| a37f69b7 | 50 | extern void fio_client_add(const char *); |
| 132159a5 JA |
51 | |
| 52 | extern int fio_recv_data(int sk, void *p, unsigned int len); | |
| 53 | extern int fio_send_data(int sk, const void *p, unsigned int len); | |
| 54 | extern void fio_net_cmd_crc(struct fio_net_cmd *); | |
| 37db14fe | 55 | extern struct fio_net_cmd *fio_net_cmd_read(int sk); |
| 132159a5 | 56 | |
| 009b1be4 | 57 | extern int exit_backend; |
| 132159a5 JA |
58 | extern int fio_net_port; |
| 59 | ||
| 60 | #if __BYTE_ORDER == __LITTLE_ENDIAN | |
| 61 | #define le16_to_cpu(x) (x) | |
| 62 | #define le32_to_cpu(x) (x) | |
| 63 | #define le64_to_cpu(x) (x) | |
| 64 | #define cpu_to_le16(x) (x) | |
| 65 | #define cpu_to_le32(x) (x) | |
| 66 | #define cpu_to_le64(x) (x) | |
| 67 | #elif __BYTE_ORDER == __BIG_ENDIAN | |
| 68 | #define le16_to_cpu(x) __bswap_16(x) | |
| 69 | #define le32_to_cpu(x) __bswap_32(x) | |
| 70 | #define le64_to_cpu(x) __bswap_64(x) | |
| 71 | #define cpu_to_le16(x) __bswap_16(x) | |
| 72 | #define cpu_to_le32(x) __bswap_32(x) | |
| 73 | #define cpu_to_le64(x) __bswap_64(x) | |
| 74 | #else | |
| 75 | #error "Endianness not detected" | |
| 76 | #endif | |
| 77 | ||
| 4d8f8780 JA |
78 | static inline void fio_init_net_cmd(struct fio_net_cmd *cmd, uint16_t opcode, |
| 79 | const void *pdu, uint32_t pdu_len) | |
| 132159a5 JA |
80 | { |
| 81 | memset(cmd, 0, sizeof(*cmd)); | |
| 4d8f8780 JA |
82 | |
| 83 | cmd->version = cpu_to_le16(FIO_SERVER_VER1); | |
| 82fa6b21 | 84 | cmd->opcode = cpu_to_le16(opcode); |
| 4d8f8780 JA |
85 | |
| 86 | if (pdu) { | |
| 87 | cmd->pdu_len = cpu_to_le32(pdu_len); | |
| 88 | memcpy(&cmd->payload, pdu, pdu_len); | |
| 89 | } | |
| 132159a5 | 90 | } |
| 50d16976 JA |
91 | |
| 92 | #endif |