Jens Axboe | 50d1697 | 2011-09-29 17:45:28 -0600 | [diff] [blame] | 1 | #ifndef FIO_SERVER_H |
| 2 | #define FIO_SERVER_H |
| 3 | |
Jens Axboe | 132159a | 2011-09-30 15:01:32 -0600 | [diff] [blame] | 4 | #include <inttypes.h> |
Jens Axboe | 142575e | 2011-09-30 17:35:45 -0600 | [diff] [blame] | 5 | #include <string.h> |
Jens Axboe | 132159a | 2011-09-30 15:01:32 -0600 | [diff] [blame] | 6 | #include <endian.h> |
| 7 | |
Jens Axboe | a64e88d | 2011-10-03 14:20:01 +0200 | [diff] [blame] | 8 | #include "stat.h" |
| 9 | |
Jens Axboe | 132159a | 2011-09-30 15:01:32 -0600 | [diff] [blame] | 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 */ |
Jens Axboe | 132159a | 2011-09-30 15:01:32 -0600 | [diff] [blame] | 18 | uint32_t pdu_len; /* length of post-cmd layload */ |
Jens Axboe | a64e88d | 2011-10-03 14:20:01 +0200 | [diff] [blame] | 19 | /* |
| 20 | * These must be immediately before the payload, anything before |
| 21 | * these fields are checksummed. |
| 22 | */ |
Jens Axboe | fcee5ff | 2011-09-30 22:50:39 -0600 | [diff] [blame] | 23 | uint16_t cmd_crc16; /* cmd checksum */ |
| 24 | uint16_t pdu_crc16; /* payload checksum */ |
Jens Axboe | 132159a | 2011-09-30 15:01:32 -0600 | [diff] [blame] | 25 | uint8_t payload[0]; /* payload */ |
| 26 | }; |
| 27 | |
| 28 | enum { |
| 29 | FIO_SERVER_VER = 1, |
| 30 | FIO_SERVER_VER1 = 1, |
| 31 | |
Jens Axboe | 794d69c | 2011-10-01 08:48:50 -0600 | [diff] [blame] | 32 | FIO_SERVER_MAX_PDU = 64, |
Jens Axboe | 132159a | 2011-09-30 15:01:32 -0600 | [diff] [blame] | 33 | |
| 34 | FIO_NET_CMD_QUIT = 1, |
Jens Axboe | d795918 | 2011-10-03 11:48:39 +0200 | [diff] [blame] | 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, |
Jens Axboe | a64e88d | 2011-10-03 14:20:01 +0200 | [diff] [blame] | 40 | FIO_NET_CMD_TS = 7, |
| 41 | FIO_NET_CMD_GS = 8, |
Jens Axboe | cf451d1 | 2011-10-03 16:48:30 +0200 | [diff] [blame^] | 42 | FIO_NET_CMD_ETA = 9, |
Jens Axboe | 794d69c | 2011-10-01 08:48:50 -0600 | [diff] [blame] | 43 | |
Jens Axboe | d795918 | 2011-10-03 11:48:39 +0200 | [diff] [blame] | 44 | FIO_NET_CMD_F_MORE = 1UL << 0, |
Jens Axboe | fcee5ff | 2011-09-30 22:50:39 -0600 | [diff] [blame] | 45 | |
| 46 | /* crc does not include the crc fields */ |
| 47 | FIO_NET_CMD_CRC_SZ = sizeof(struct fio_net_cmd) - |
| 48 | 2 * sizeof(uint16_t), |
Jens Axboe | 132159a | 2011-09-30 15:01:32 -0600 | [diff] [blame] | 49 | }; |
| 50 | |
Jens Axboe | a64e88d | 2011-10-03 14:20:01 +0200 | [diff] [blame] | 51 | struct cmd_ts_pdu { |
| 52 | struct thread_stat ts; |
| 53 | struct group_run_stats rs; |
| 54 | }; |
| 55 | |
Jens Axboe | e46d809 | 2011-10-03 09:11:02 +0200 | [diff] [blame] | 56 | extern int fio_start_server(int); |
Jens Axboe | 142575e | 2011-09-30 17:35:45 -0600 | [diff] [blame] | 57 | extern int fio_server_text_output(const char *, unsigned int len); |
| 58 | extern int fio_server_log(const char *format, ...); |
Jens Axboe | a64e88d | 2011-10-03 14:20:01 +0200 | [diff] [blame] | 59 | extern int fio_net_send_cmd(int, uint16_t, const void *, off_t); |
| 60 | |
| 61 | struct thread_stat; |
| 62 | struct group_run_stats; |
| 63 | extern void fio_server_send_ts(struct thread_stat *, struct group_run_stats *); |
| 64 | extern void fio_server_send_gs(struct group_run_stats *); |
Jens Axboe | cf451d1 | 2011-10-03 16:48:30 +0200 | [diff] [blame^] | 65 | extern void fio_server_send_status(void); |
Jens Axboe | 132159a | 2011-09-30 15:01:32 -0600 | [diff] [blame] | 66 | |
Jens Axboe | a37f69b | 2011-10-01 12:24:21 -0600 | [diff] [blame] | 67 | extern int fio_clients_connect(void); |
| 68 | extern int fio_clients_send_ini(const char *); |
Jens Axboe | 37db14f | 2011-09-30 17:00:42 -0600 | [diff] [blame] | 69 | extern int fio_handle_clients(void); |
Jens Axboe | a37f69b | 2011-10-01 12:24:21 -0600 | [diff] [blame] | 70 | extern void fio_client_add(const char *); |
Jens Axboe | 132159a | 2011-09-30 15:01:32 -0600 | [diff] [blame] | 71 | |
| 72 | extern int fio_recv_data(int sk, void *p, unsigned int len); |
| 73 | extern int fio_send_data(int sk, const void *p, unsigned int len); |
| 74 | extern void fio_net_cmd_crc(struct fio_net_cmd *); |
Jens Axboe | a64e88d | 2011-10-03 14:20:01 +0200 | [diff] [blame] | 75 | extern struct fio_net_cmd *fio_net_recv_cmd(int sk); |
Jens Axboe | 132159a | 2011-09-30 15:01:32 -0600 | [diff] [blame] | 76 | |
Jens Axboe | 009b1be | 2011-09-29 18:27:02 -0600 | [diff] [blame] | 77 | extern int exit_backend; |
Jens Axboe | 132159a | 2011-09-30 15:01:32 -0600 | [diff] [blame] | 78 | extern int fio_net_port; |
| 79 | |
| 80 | #if __BYTE_ORDER == __LITTLE_ENDIAN |
Jens Axboe | ddcc0b6 | 2011-10-03 14:45:27 +0200 | [diff] [blame] | 81 | #define __le16_to_cpu(x) (x) |
| 82 | #define __le32_to_cpu(x) (x) |
| 83 | #define __le64_to_cpu(x) (x) |
| 84 | #define __cpu_to_le16(x) (x) |
| 85 | #define __cpu_to_le32(x) (x) |
| 86 | #define __cpu_to_le64(x) (x) |
Jens Axboe | 132159a | 2011-09-30 15:01:32 -0600 | [diff] [blame] | 87 | #elif __BYTE_ORDER == __BIG_ENDIAN |
Jens Axboe | ddcc0b6 | 2011-10-03 14:45:27 +0200 | [diff] [blame] | 88 | #define __le16_to_cpu(x) __bswap_16(x) |
| 89 | #define __le32_to_cpu(x) __bswap_32(x) |
| 90 | #define __le64_to_cpu(x) __bswap_64(x) |
| 91 | #define __cpu_to_le16(x) __bswap_16(x) |
| 92 | #define __cpu_to_le32(x) __bswap_32(x) |
| 93 | #define __cpu_to_le64(x) __bswap_64(x) |
Jens Axboe | 132159a | 2011-09-30 15:01:32 -0600 | [diff] [blame] | 94 | #else |
| 95 | #error "Endianness not detected" |
| 96 | #endif |
| 97 | |
Jens Axboe | ddcc0b6 | 2011-10-03 14:45:27 +0200 | [diff] [blame] | 98 | #define le16_to_cpu(val) ({ \ |
| 99 | uint16_t *__val = &(val); \ |
| 100 | __le16_to_cpu(*__val); \ |
| 101 | }) |
| 102 | #define le32_to_cpu(val) ({ \ |
| 103 | uint32_t *__val = &(val); \ |
| 104 | __le32_to_cpu(*__val); \ |
| 105 | }) |
| 106 | #define le64_to_cpu(val) ({ \ |
| 107 | uint64_t *__val = &(val); \ |
| 108 | __le64_to_cpu(*__val); \ |
| 109 | }) |
| 110 | #define cpu_to_le16(val) ({ \ |
| 111 | uint16_t *__val = &(val); \ |
| 112 | __cpu_to_le16(*__val); \ |
| 113 | }) |
| 114 | #define cpu_to_le32(val) ({ \ |
| 115 | uint32_t *__val = &(val); \ |
| 116 | __cpu_to_le32(*__val); \ |
| 117 | }) |
| 118 | #define cpu_to_le64(val) ({ \ |
| 119 | uint64_t *__val = &(val); \ |
| 120 | __cpu_to_le64(*__val); \ |
| 121 | }) |
| 122 | |
Jens Axboe | 4d8f878 | 2011-09-30 22:24:17 -0600 | [diff] [blame] | 123 | static inline void fio_init_net_cmd(struct fio_net_cmd *cmd, uint16_t opcode, |
| 124 | const void *pdu, uint32_t pdu_len) |
Jens Axboe | 132159a | 2011-09-30 15:01:32 -0600 | [diff] [blame] | 125 | { |
| 126 | memset(cmd, 0, sizeof(*cmd)); |
Jens Axboe | 4d8f878 | 2011-09-30 22:24:17 -0600 | [diff] [blame] | 127 | |
Jens Axboe | ddcc0b6 | 2011-10-03 14:45:27 +0200 | [diff] [blame] | 128 | cmd->version = __cpu_to_le16(FIO_SERVER_VER1); |
Jens Axboe | 82fa6b2 | 2011-09-30 22:29:08 -0600 | [diff] [blame] | 129 | cmd->opcode = cpu_to_le16(opcode); |
Jens Axboe | 4d8f878 | 2011-09-30 22:24:17 -0600 | [diff] [blame] | 130 | |
| 131 | if (pdu) { |
| 132 | cmd->pdu_len = cpu_to_le32(pdu_len); |
| 133 | memcpy(&cmd->payload, pdu, pdu_len); |
| 134 | } |
Jens Axboe | 132159a | 2011-09-30 15:01:32 -0600 | [diff] [blame] | 135 | } |
Jens Axboe | 50d1697 | 2011-09-29 17:45:28 -0600 | [diff] [blame] | 136 | |
| 137 | #endif |