Commit | Line | Data |
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ebac4655 JA |
1 | #ifndef FIO_OS_LINUX_H |
2 | #define FIO_OS_LINUX_H | |
3 | ||
cca84643 JA |
4 | #define FIO_OS os_linux |
5 | ||
ebac4655 | 6 | #include <sys/ioctl.h> |
8756e4d4 | 7 | #include <sys/uio.h> |
3c39a379 | 8 | #include <sys/syscall.h> |
250e878a | 9 | #include <sys/sysmacros.h> |
2e3bd4c2 | 10 | #include <sys/vfs.h> |
39b93568 | 11 | #include <sys/mman.h> |
3c39a379 | 12 | #include <unistd.h> |
97fbdfa1 | 13 | #include <fcntl.h> |
3c2d93ed | 14 | #include <errno.h> |
d09913c2 | 15 | #include <sched.h> |
ea421790 | 16 | #include <linux/unistd.h> |
07e5b264 JA |
17 | #include <linux/raw.h> |
18 | #include <linux/major.h> | |
df73aab1 | 19 | #include <byteswap.h> |
ebac4655 | 20 | |
79a43187 | 21 | #include "binject.h" |
e2e58886 | 22 | #include "../file.h" |
f3de88a7 | 23 | |
ebac4655 JA |
24 | #define FIO_HAVE_CPU_AFFINITY |
25 | #define FIO_HAVE_DISK_UTIL | |
26 | #define FIO_HAVE_SGIO | |
ba4f8923 | 27 | #define FIO_HAVE_IOPRIO |
22f78b32 | 28 | #define FIO_HAVE_IOSCHED_SWITCH |
2c0ecd28 | 29 | #define FIO_HAVE_ODIRECT |
74b025b0 | 30 | #define FIO_HAVE_HUGETLB |
07e5b264 | 31 | #define FIO_HAVE_RAWBIND |
5e62c22a | 32 | #define FIO_HAVE_BLKTRACE |
f356d01d | 33 | #define FIO_HAVE_PSHARED_MUTEX |
eb7ccf38 | 34 | #define FIO_HAVE_CL_SIZE |
a696fa2a | 35 | #define FIO_HAVE_CGROUPS |
2e3bd4c2 | 36 | #define FIO_HAVE_FS_STAT |
a5f3027c | 37 | #define FIO_HAVE_TRIM |
79a43187 | 38 | #define FIO_HAVE_BINJECT |
47f767c1 | 39 | #define FIO_HAVE_GETTID |
93bcfd20 | 40 | #define FIO_USE_GENERIC_INIT_RANDOM_STATE |
6562685f | 41 | #define FIO_HAVE_PWRITEV2 |
b6959b55 | 42 | |
39b93568 JA |
43 | #ifdef MAP_HUGETLB |
44 | #define FIO_HAVE_MMAP_HUGE | |
45 | #endif | |
46 | ||
dc873b6f | 47 | #define OS_MAP_ANON MAP_ANONYMOUS |
ebac4655 JA |
48 | |
49 | typedef cpu_set_t os_cpu_mask_t; | |
4e78e405 | 50 | |
6dfd46b9 | 51 | typedef struct drand48_data os_random_state_t; |
ebac4655 | 52 | |
67bf9823 | 53 | #ifdef CONFIG_3ARG_AFFINITY |
e8462bd8 JA |
54 | #define fio_setaffinity(pid, cpumask) \ |
55 | sched_setaffinity((pid), sizeof(cpumask), &(cpumask)) | |
ebac4655 JA |
56 | #define fio_getaffinity(pid, ptr) \ |
57 | sched_getaffinity((pid), sizeof(cpu_set_t), (ptr)) | |
67bf9823 | 58 | #elif defined(CONFIG_2ARG_AFFINITY) |
e8462bd8 JA |
59 | #define fio_setaffinity(pid, cpumask) \ |
60 | sched_setaffinity((pid), &(cpumask)) | |
c8f025f8 JA |
61 | #define fio_getaffinity(pid, ptr) \ |
62 | sched_getaffinity((pid), (ptr)) | |
63 | #endif | |
be4ecfdf | 64 | |
1f4c0a4f JA |
65 | #define fio_cpu_clear(mask, cpu) (void) CPU_CLR((cpu), (mask)) |
66 | #define fio_cpu_set(mask, cpu) (void) CPU_SET((cpu), (mask)) | |
50b5860b | 67 | #define fio_cpu_isset(mask, cpu) CPU_ISSET((cpu), (mask)) |
d004a209 | 68 | #define fio_cpu_count(mask) CPU_COUNT((mask)) |
d2ce18b5 JA |
69 | |
70 | static inline int fio_cpuset_init(os_cpu_mask_t *mask) | |
71 | { | |
72 | CPU_ZERO(mask); | |
73 | return 0; | |
74 | } | |
75 | ||
76 | static inline int fio_cpuset_exit(os_cpu_mask_t *mask) | |
77 | { | |
78 | return 0; | |
79 | } | |
6d459ee7 JA |
80 | |
81 | #define FIO_MAX_CPUS CPU_SETSIZE | |
4d8947de | 82 | |
28727df7 JA |
83 | enum { |
84 | IOPRIO_CLASS_NONE, | |
85 | IOPRIO_CLASS_RT, | |
86 | IOPRIO_CLASS_BE, | |
87 | IOPRIO_CLASS_IDLE, | |
88 | }; | |
89 | ||
90 | enum { | |
91 | IOPRIO_WHO_PROCESS = 1, | |
92 | IOPRIO_WHO_PGRP, | |
93 | IOPRIO_WHO_USER, | |
94 | }; | |
95 | ||
96 | #define IOPRIO_BITS 16 | |
97 | #define IOPRIO_CLASS_SHIFT 13 | |
98 | ||
99 | static inline int ioprio_set(int which, int who, int ioprio_class, int ioprio) | |
ebac4655 | 100 | { |
28727df7 JA |
101 | /* |
102 | * If no class is set, assume BE | |
103 | */ | |
104 | if (!ioprio_class) | |
105 | ioprio_class = IOPRIO_CLASS_BE; | |
106 | ||
107 | ioprio |= ioprio_class << IOPRIO_CLASS_SHIFT; | |
ebac4655 JA |
108 | return syscall(__NR_ioprio_set, which, who, ioprio); |
109 | } | |
110 | ||
47f767c1 JA |
111 | static inline int gettid(void) |
112 | { | |
113 | return syscall(__NR_gettid); | |
114 | } | |
115 | ||
3feedc60 JA |
116 | #define SPLICE_DEF_SIZE (64*1024) |
117 | ||
ebac4655 JA |
118 | #ifndef BLKGETSIZE64 |
119 | #define BLKGETSIZE64 _IOR(0x12,114,size_t) | |
120 | #endif | |
121 | ||
e5b401d4 JA |
122 | #ifndef BLKFLSBUF |
123 | #define BLKFLSBUF _IO(0x12,97) | |
124 | #endif | |
125 | ||
a5f3027c JA |
126 | #ifndef BLKDISCARD |
127 | #define BLKDISCARD _IO(0x12,119) | |
128 | #endif | |
129 | ||
e2e58886 | 130 | static inline int blockdev_invalidate_cache(struct fio_file *f) |
e5b401d4 | 131 | { |
ecc314ba | 132 | return ioctl(f->fd, BLKFLSBUF); |
e5b401d4 JA |
133 | } |
134 | ||
ecc314ba | 135 | static inline int blockdev_size(struct fio_file *f, unsigned long long *bytes) |
ebac4655 | 136 | { |
ecc314ba | 137 | if (!ioctl(f->fd, BLKGETSIZE64, bytes)) |
ebac4655 JA |
138 | return 0; |
139 | ||
140 | return errno; | |
141 | } | |
142 | ||
32cd46a0 JA |
143 | static inline unsigned long long os_phys_mem(void) |
144 | { | |
145 | long pagesize, pages; | |
146 | ||
147 | pagesize = sysconf(_SC_PAGESIZE); | |
148 | pages = sysconf(_SC_PHYS_PAGES); | |
149 | if (pages == -1 || pagesize == -1) | |
150 | return 0; | |
151 | ||
152 | return (unsigned long long) pages * (unsigned long long) pagesize; | |
153 | } | |
154 | ||
6dfd46b9 JA |
155 | static inline void os_random_seed(unsigned long seed, os_random_state_t *rs) |
156 | { | |
157 | srand48_r(seed, rs); | |
158 | } | |
159 | ||
160 | static inline long os_random_long(os_random_state_t *rs) | |
161 | { | |
162 | long val; | |
163 | ||
164 | lrand48_r(rs, &val); | |
165 | return val; | |
166 | } | |
167 | ||
8cc7afa9 | 168 | static inline int fio_lookup_raw(dev_t dev, int *majdev, int *mindev) |
07e5b264 JA |
169 | { |
170 | struct raw_config_request rq; | |
171 | int fd; | |
172 | ||
173 | if (major(dev) != RAW_MAJOR) | |
8cc7afa9 | 174 | return 1; |
07e5b264 JA |
175 | |
176 | /* | |
177 | * we should be able to find /dev/rawctl or /dev/raw/rawctl | |
178 | */ | |
179 | fd = open("/dev/rawctl", O_RDONLY); | |
180 | if (fd < 0) { | |
181 | fd = open("/dev/raw/rawctl", O_RDONLY); | |
182 | if (fd < 0) | |
8cc7afa9 | 183 | return 1; |
07e5b264 JA |
184 | } |
185 | ||
186 | rq.raw_minor = minor(dev); | |
187 | if (ioctl(fd, RAW_GETBIND, &rq) < 0) { | |
188 | close(fd); | |
8cc7afa9 | 189 | return 1; |
07e5b264 JA |
190 | } |
191 | ||
192 | close(fd); | |
193 | *majdev = rq.block_major; | |
194 | *mindev = rq.block_minor; | |
8cc7afa9 | 195 | return 0; |
07e5b264 JA |
196 | } |
197 | ||
5b6f5c66 | 198 | #ifdef O_NOATIME |
5921e80c | 199 | #define FIO_O_NOATIME O_NOATIME |
5b6f5c66 JA |
200 | #else |
201 | #define FIO_O_NOATIME 0 | |
202 | #endif | |
5921e80c | 203 | |
d01612f3 CM |
204 | #ifdef O_ATOMIC |
205 | #define OS_O_ATOMIC O_ATOMIC | |
206 | #else | |
207 | #define OS_O_ATOMIC 040000000 | |
208 | #endif | |
209 | ||
a1c58075 JA |
210 | #ifdef MADV_REMOVE |
211 | #define FIO_MADV_FREE MADV_REMOVE | |
212 | #endif | |
213 | ||
df73aab1 JA |
214 | #if defined(__builtin_bswap16) |
215 | #define fio_swap16(x) __builtin_bswap16(x) | |
216 | #else | |
ff245192 | 217 | #define fio_swap16(x) __bswap_16(x) |
df73aab1 JA |
218 | #endif |
219 | #if defined(__builtin_bswap32) | |
220 | #define fio_swap32(x) __builtin_bswap32(x) | |
221 | #else | |
ff245192 | 222 | #define fio_swap32(x) __bswap_32(x) |
df73aab1 JA |
223 | #endif |
224 | #if defined(__builtin_bswap64) | |
225 | #define fio_swap64(x) __builtin_bswap64(x) | |
226 | #else | |
ff245192 | 227 | #define fio_swap64(x) __bswap_64(x) |
df73aab1 | 228 | #endif |
ff245192 | 229 | |
eb7ccf38 JA |
230 | #define CACHE_LINE_FILE \ |
231 | "/sys/devices/system/cpu/cpu0/cache/index0/coherency_line_size" | |
232 | ||
233 | static inline int arch_cache_line_size(void) | |
234 | { | |
235 | char size[32]; | |
236 | int fd, ret; | |
237 | ||
238 | fd = open(CACHE_LINE_FILE, O_RDONLY); | |
239 | if (fd < 0) | |
240 | return -1; | |
241 | ||
242 | ret = read(fd, size, sizeof(size)); | |
ec76f15a JA |
243 | |
244 | close(fd); | |
245 | ||
eb7ccf38 JA |
246 | if (ret <= 0) |
247 | return -1; | |
ec76f15a JA |
248 | else |
249 | return atoi(size); | |
eb7ccf38 JA |
250 | } |
251 | ||
c08ad04c | 252 | static inline unsigned long long get_fs_free_size(const char *path) |
2e3bd4c2 JA |
253 | { |
254 | unsigned long long ret; | |
255 | struct statfs s; | |
256 | ||
257 | if (statfs(path, &s) < 0) | |
258 | return -1ULL; | |
259 | ||
260 | ret = s.f_bsize; | |
261 | ret *= (unsigned long long) s.f_bfree; | |
262 | return ret; | |
263 | } | |
264 | ||
a5f3027c JA |
265 | static inline int os_trim(int fd, unsigned long long start, |
266 | unsigned long long len) | |
267 | { | |
268 | uint64_t range[2]; | |
269 | ||
270 | range[0] = start; | |
271 | range[1] = len; | |
272 | ||
273 | if (!ioctl(fd, BLKDISCARD, range)) | |
274 | return 0; | |
275 | ||
276 | return errno; | |
277 | } | |
278 | ||
7e09a9f1 | 279 | #ifdef CONFIG_SCHED_IDLE |
f2a2ce0e HL |
280 | static inline int fio_set_sched_idle(void) |
281 | { | |
282 | struct sched_param p = { .sched_priority = 0, }; | |
283 | return sched_setscheduler(gettid(), SCHED_IDLE, &p); | |
284 | } | |
7e09a9f1 | 285 | #endif |
f2a2ce0e | 286 | |
37659335 JA |
287 | #ifndef POSIX_FADV_STREAMID |
288 | #define POSIX_FADV_STREAMID 8 | |
289 | #endif | |
290 | ||
291 | #define FIO_HAVE_STREAMID | |
292 | ||
6562685f JA |
293 | #ifndef RWF_HIPRI |
294 | #define RWF_HIPRI 0x00000001 | |
295 | #endif | |
296 | #ifndef RWF_DSYNC | |
297 | #define RWF_DSYNC 0x00000002 | |
298 | #endif | |
299 | #ifndef RWF_SYNC | |
300 | #define RWF_SYNC 0x00000004 | |
301 | #endif | |
302 | ||
303 | #ifndef CONFIG_PWRITEV2 | |
304 | #ifdef __NR_preadv2 | |
305 | static inline void make_pos_h_l(unsigned long *pos_h, unsigned long *pos_l, | |
306 | off_t offset) | |
307 | { | |
308 | *pos_l = offset & 0xffffffff; | |
309 | *pos_h = ((uint64_t) offset) >> 32; | |
310 | ||
311 | } | |
312 | static inline ssize_t preadv2(int fd, const struct iovec *iov, int iovcnt, | |
313 | off_t offset, unsigned int flags) | |
314 | { | |
315 | unsigned long pos_l, pos_h; | |
316 | ||
317 | make_pos_h_l(&pos_h, &pos_l, offset); | |
318 | return syscall(__NR_preadv2, fd, iov, iovcnt, pos_l, pos_h, flags); | |
319 | } | |
320 | static inline ssize_t pwritev2(int fd, const struct iovec *iov, int iovcnt, | |
321 | off_t offset, unsigned int flags) | |
322 | { | |
323 | unsigned long pos_l, pos_h; | |
324 | ||
325 | make_pos_h_l(&pos_h, &pos_l, offset); | |
326 | return syscall(__NR_pwritev2, fd, iov, iovcnt, pos_l, pos_h, flags); | |
327 | } | |
328 | #else | |
329 | static inline ssize_t preadv2(int fd, const struct iovec *iov, int iovcnt, | |
330 | off_t offset, unsigned int flags) | |
331 | { | |
332 | errno = ENOSYS; | |
333 | return -1; | |
334 | } | |
335 | static inline ssize_t pwritev2(int fd, const struct iovec *iov, int iovcnt, | |
336 | off_t offset, unsigned int flags) | |
337 | { | |
338 | errno = ENOSYS; | |
339 | return -1; | |
340 | } | |
341 | #endif /* __NR_preadv2 */ | |
342 | #endif /* CONFIG_PWRITEV2 */ | |
343 | ||
ebac4655 | 344 | #endif |