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1 | /*****************************************************************************\ |
2 | * ZPIOS is a heavily modified version of the original PIOS test code. | |
3 | * It is designed to have the test code running in the Linux kernel | |
4 | * against ZFS while still being flexibly controled from user space. | |
5 | * | |
6 | * Copyright (C) 2008-2010 Lawrence Livermore National Security, LLC. | |
7 | * Produced at Lawrence Livermore National Laboratory (cf, DISCLAIMER). | |
8 | * Written by Brian Behlendorf <behlendorf1@llnl.gov>. | |
9 | * LLNL-CODE-403049 | |
10 | * | |
11 | * Original PIOS Test Code | |
12 | * Copyright (C) 2004 Cluster File Systems, Inc. | |
13 | * Written by Peter Braam <braam@clusterfs.com> | |
14 | * Atul Vidwansa <atul@clusterfs.com> | |
15 | * Milind Dumbare <milind@clusterfs.com> | |
16 | * | |
17 | * This file is part of ZFS on Linux. | |
92db59ca | 18 | * For details, see <http://zfsonlinux.org/>. |
302ef151 BB |
19 | * |
20 | * ZPIOS is free software; you can redistribute it and/or modify it | |
21 | * under the terms of the GNU General Public License as published by the | |
22 | * Free Software Foundation; either version 2 of the License, or (at your | |
23 | * option) any later version. | |
24 | * | |
25 | * ZPIOS is distributed in the hope that it will be useful, but WITHOUT | |
26 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
27 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
28 | * for more details. | |
29 | * | |
30 | * You should have received a copy of the GNU General Public License along | |
31 | * with ZPIOS. If not, see <http://www.gnu.org/licenses/>. | |
32 | \*****************************************************************************/ | |
33 | ||
34 | #ifndef _ZPIOS_CTL_H | |
35 | #define _ZPIOS_CTL_H | |
36 | ||
37 | /* Contains shared definitions which both the userspace | |
38 | * and kernelspace portions of zpios must agree on. | |
39 | */ | |
40 | #ifndef _KERNEL | |
41 | #include <stdint.h> | |
42 | #endif | |
43 | ||
44 | #define ZPIOS_MAJOR 232 /* XXX - Arbitrary */ | |
45 | #define ZPIOS_MINORS 1 | |
46 | #define ZPIOS_NAME "zpios" | |
47 | #define ZPIOS_DEV "/dev/zpios" | |
48 | ||
49 | #define DMU_IO 0x01 | |
50 | ||
51 | #define DMU_WRITE 0x0001 | |
52 | #define DMU_READ 0x0002 | |
53 | #define DMU_VERIFY 0x0004 | |
54 | #define DMU_REMOVE 0x0008 | |
55 | #define DMU_FPP 0x0010 | |
56 | #define DMU_WRITE_ZC 0x0020 /* Incompatible w/DMU_VERIFY */ | |
57 | #define DMU_READ_ZC 0x0040 /* Incompatible w/DMU_VERIFY */ | |
58 | #define DMU_WRITE_NOWAIT 0x0080 | |
59 | #define DMU_READ_NOPF 0x0100 | |
60 | ||
61 | #define ZPIOS_NAME_SIZE 16 | |
62 | #define ZPIOS_PATH_SIZE 128 | |
63 | ||
64 | #define PHASE_PRE_RUN "pre-run" | |
65 | #define PHASE_PRE_CREATE "pre-create" | |
66 | #define PHASE_PRE_WRITE "pre-write" | |
67 | #define PHASE_PRE_READ "pre-read" | |
68 | #define PHASE_PRE_REMOVE "pre-remove" | |
69 | #define PHASE_POST_RUN "post-run" | |
70 | #define PHASE_POST_CREATE "post-create" | |
71 | #define PHASE_POST_WRITE "post-write" | |
72 | #define PHASE_POST_READ "post-read" | |
73 | #define PHASE_POST_REMOVE "post-remove" | |
74 | ||
75 | #define ZPIOS_CFG_MAGIC 0x87237190U | |
76 | typedef struct zpios_cfg { | |
77 | uint32_t cfg_magic; /* Unique magic */ | |
78 | int32_t cfg_cmd; /* Config command */ | |
79 | int32_t cfg_arg1; /* Config command arg 1 */ | |
80 | int32_t cfg_rc1; /* Config response 1 */ | |
81 | } zpios_cfg_t; | |
82 | ||
83 | typedef struct zpios_timespec { | |
84 | uint32_t ts_sec; | |
85 | uint32_t ts_nsec; | |
86 | } zpios_timespec_t; | |
87 | ||
88 | typedef struct zpios_time { | |
89 | zpios_timespec_t start; | |
90 | zpios_timespec_t stop; | |
91 | zpios_timespec_t delta; | |
92 | } zpios_time_t; | |
93 | ||
94 | typedef struct zpios_stats { | |
95 | zpios_time_t total_time; | |
96 | zpios_time_t cr_time; | |
97 | zpios_time_t rm_time; | |
98 | zpios_time_t wr_time; | |
99 | zpios_time_t rd_time; | |
100 | uint64_t wr_data; | |
101 | uint64_t wr_chunks; | |
102 | uint64_t rd_data; | |
103 | uint64_t rd_chunks; | |
104 | } zpios_stats_t; | |
105 | ||
106 | #define ZPIOS_CMD_MAGIC 0x49715385U | |
107 | typedef struct zpios_cmd { | |
108 | uint32_t cmd_magic; /* Unique magic */ | |
109 | uint32_t cmd_id; /* Run ID */ | |
110 | char cmd_pool[ZPIOS_NAME_SIZE]; /* Pool name */ | |
111 | uint64_t cmd_chunk_size; /* Chunk size */ | |
112 | uint32_t cmd_thread_count; /* Thread count */ | |
113 | uint32_t cmd_region_count; /* Region count */ | |
114 | uint64_t cmd_region_size; /* Region size */ | |
115 | uint64_t cmd_offset; /* Region offset */ | |
116 | uint32_t cmd_region_noise; /* Region noise */ | |
117 | uint32_t cmd_chunk_noise; /* Chunk noise */ | |
118 | uint32_t cmd_thread_delay; /* Thread delay */ | |
119 | uint32_t cmd_flags; /* Test flags */ | |
120 | char cmd_pre[ZPIOS_PATH_SIZE]; /* Pre-exec hook */ | |
121 | char cmd_post[ZPIOS_PATH_SIZE]; /* Post-exec hook */ | |
122 | char cmd_log[ZPIOS_PATH_SIZE]; /* Requested log dir */ | |
123 | uint64_t cmd_data_size; /* Opaque data size */ | |
124 | char cmd_data_str[0]; /* Opaque data region */ | |
125 | } zpios_cmd_t; | |
126 | ||
127 | /* Valid ioctls */ | |
128 | #define ZPIOS_CFG _IOWR('f', 101, zpios_cfg_t) | |
129 | #define ZPIOS_CMD _IOWR('f', 102, zpios_cmd_t) | |
130 | ||
131 | /* Valid configuration commands */ | |
132 | #define ZPIOS_CFG_BUFFER_CLEAR 0x001 /* Clear text buffer */ | |
133 | #define ZPIOS_CFG_BUFFER_SIZE 0x002 /* Resize text buffer */ | |
134 | ||
135 | #ifndef NSEC_PER_SEC | |
136 | #define NSEC_PER_SEC 1000000000L | |
137 | #endif | |
138 | ||
139 | static inline | |
140 | void zpios_timespec_normalize(zpios_timespec_t *ts, uint32_t sec, uint32_t nsec) | |
141 | { | |
142 | while (nsec >= NSEC_PER_SEC) { | |
143 | nsec -= NSEC_PER_SEC; | |
144 | sec++; | |
145 | } | |
146 | while (nsec < 0) { | |
147 | nsec += NSEC_PER_SEC; | |
148 | sec--; | |
149 | } | |
150 | ts->ts_sec = sec; | |
151 | ts->ts_nsec = nsec; | |
152 | } | |
153 | ||
154 | static inline | |
155 | zpios_timespec_t zpios_timespec_add(zpios_timespec_t lhs, zpios_timespec_t rhs) | |
156 | { | |
157 | zpios_timespec_t ts_delta; | |
158 | zpios_timespec_normalize(&ts_delta, lhs.ts_sec + rhs.ts_sec, | |
159 | lhs.ts_nsec + rhs.ts_nsec); | |
160 | return ts_delta; | |
161 | } | |
162 | ||
163 | static inline | |
164 | zpios_timespec_t zpios_timespec_sub(zpios_timespec_t lhs, zpios_timespec_t rhs) | |
165 | { | |
166 | zpios_timespec_t ts_delta; | |
167 | zpios_timespec_normalize(&ts_delta, lhs.ts_sec - rhs.ts_sec, | |
168 | lhs.ts_nsec - rhs.ts_nsec); | |
169 | return ts_delta; | |
170 | } | |
171 | ||
172 | #ifdef _KERNEL | |
173 | ||
174 | static inline | |
175 | zpios_timespec_t zpios_timespec_now(void) | |
176 | { | |
177 | zpios_timespec_t zts_now; | |
178 | struct timespec ts_now; | |
179 | ||
180 | ts_now = current_kernel_time(); | |
181 | zts_now.ts_sec = ts_now.tv_sec; | |
182 | zts_now.ts_nsec = ts_now.tv_nsec; | |
183 | ||
184 | return zts_now; | |
185 | } | |
186 | ||
187 | #else | |
188 | ||
189 | static inline | |
190 | double zpios_timespec_to_double(zpios_timespec_t ts) | |
191 | { | |
192 | return ((double)(ts.ts_sec) + | |
193 | ((double)(ts.ts_nsec) / (double)(NSEC_PER_SEC))); | |
194 | } | |
195 | ||
196 | #endif /* _KERNEL */ | |
197 | ||
198 | #endif /* _ZPIOS_CTL_H */ |