Commit | Line | Data |
---|---|---|
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> |
2e3bd4c2 | 9 | #include <sys/vfs.h> |
39b93568 | 10 | #include <sys/mman.h> |
3c39a379 | 11 | #include <unistd.h> |
97fbdfa1 | 12 | #include <fcntl.h> |
3c2d93ed | 13 | #include <errno.h> |
d09913c2 | 14 | #include <sched.h> |
ea421790 | 15 | #include <linux/unistd.h> |
07e5b264 JA |
16 | #include <linux/raw.h> |
17 | #include <linux/major.h> | |
610a730c | 18 | #include <endian.h> |
ebac4655 | 19 | |
f3de88a7 | 20 | #include "indirect.h" |
79a43187 | 21 | #include "binject.h" |
e2e58886 | 22 | #include "../file.h" |
f3de88a7 | 23 | |
ebac4655 JA |
24 | #define FIO_HAVE_LIBAIO |
25 | #define FIO_HAVE_POSIXAIO | |
26 | #define FIO_HAVE_FADVISE | |
27 | #define FIO_HAVE_CPU_AFFINITY | |
28 | #define FIO_HAVE_DISK_UTIL | |
29 | #define FIO_HAVE_SGIO | |
ba4f8923 | 30 | #define FIO_HAVE_IOPRIO |
8756e4d4 | 31 | #define FIO_HAVE_SPLICE |
22f78b32 | 32 | #define FIO_HAVE_IOSCHED_SWITCH |
2c0ecd28 | 33 | #define FIO_HAVE_ODIRECT |
74b025b0 | 34 | #define FIO_HAVE_HUGETLB |
07e5b264 | 35 | #define FIO_HAVE_RAWBIND |
5e62c22a | 36 | #define FIO_HAVE_BLKTRACE |
5921e80c | 37 | #define FIO_HAVE_STRSEP |
207cb0f0 | 38 | #define FIO_HAVE_POSIXAIO_FSYNC |
f356d01d | 39 | #define FIO_HAVE_PSHARED_MUTEX |
eb7ccf38 | 40 | #define FIO_HAVE_CL_SIZE |
a696fa2a | 41 | #define FIO_HAVE_CGROUPS |
c36d16f5 | 42 | #define FIO_HAVE_FDATASYNC |
2e3bd4c2 | 43 | #define FIO_HAVE_FS_STAT |
a5f3027c | 44 | #define FIO_HAVE_TRIM |
79a43187 | 45 | #define FIO_HAVE_BINJECT |
ecc314ba | 46 | #define FIO_HAVE_CLOCK_MONOTONIC |
47f767c1 | 47 | #define FIO_HAVE_GETTID |
93bcfd20 | 48 | #define FIO_USE_GENERIC_INIT_RANDOM_STATE |
1ecc95ca | 49 | #define FIO_HAVE_E4_ENG |
b6959b55 | 50 | |
39b93568 JA |
51 | #ifdef MAP_HUGETLB |
52 | #define FIO_HAVE_MMAP_HUGE | |
53 | #endif | |
54 | ||
804bb9a1 JA |
55 | /* |
56 | * Can only enable this for newer glibcs, or the header and defines are | |
57 | * missing | |
58 | */ | |
52ad4b94 JA |
59 | #if __GLIBC__ >= 2 && __GLIBC_MINOR__ >= 6 |
60 | #define FIO_HAVE_FALLOCATE | |
61 | #endif | |
78b269e3 | 62 | #if __GLIBC__ >= 2 && __GLIBC_MINOR__ >= 8 |
804bb9a1 JA |
63 | #define FIO_HAVE_LINUX_FALLOCATE |
64 | #endif | |
65 | ||
1ecc95ca JA |
66 | #ifdef FIO_HAVE_LINUX_FALLOCATE |
67 | #define FIO_HAVE_FALLOC_ENG | |
68 | #endif | |
69 | ||
093729f7 JA |
70 | #ifdef SYNC_FILE_RANGE_WAIT_BEFORE |
71 | #define FIO_HAVE_SYNC_FILE_RANGE | |
72 | #endif | |
73 | ||
dc873b6f | 74 | #define OS_MAP_ANON MAP_ANONYMOUS |
ebac4655 | 75 | |
4d8947de SL |
76 | #ifndef CLOCK_MONOTONIC |
77 | #define CLOCK_MONOTONIC 1 | |
78 | #endif | |
79 | ||
ebac4655 | 80 | typedef cpu_set_t os_cpu_mask_t; |
4e78e405 | 81 | |
6dfd46b9 | 82 | typedef struct drand48_data os_random_state_t; |
ebac4655 JA |
83 | |
84 | /* | |
85 | * we want fadvise64 really, but it's so tangled... later | |
86 | */ | |
4d8947de | 87 | #ifdef FIO_HAVE_FADVISE |
ebac4655 JA |
88 | #define fadvise(fd, off, len, advice) \ |
89 | posix_fadvise((fd), (off_t)(off), (len), (advice)) | |
4d8947de | 90 | #endif |
ebac4655 | 91 | |
c8f025f8 JA |
92 | /* |
93 | * If you are on an ancient glibc (2.3.2), then define GLIBC_2_3_2 if you want | |
94 | * the affinity helpers to work. | |
95 | */ | |
96 | #ifndef GLIBC_2_3_2 | |
e8462bd8 JA |
97 | #define fio_setaffinity(pid, cpumask) \ |
98 | sched_setaffinity((pid), sizeof(cpumask), &(cpumask)) | |
ebac4655 JA |
99 | #define fio_getaffinity(pid, ptr) \ |
100 | sched_getaffinity((pid), sizeof(cpu_set_t), (ptr)) | |
c8f025f8 | 101 | #else |
e8462bd8 JA |
102 | #define fio_setaffinity(pid, cpumask) \ |
103 | sched_setaffinity((pid), &(cpumask)) | |
c8f025f8 JA |
104 | #define fio_getaffinity(pid, ptr) \ |
105 | sched_getaffinity((pid), (ptr)) | |
106 | #endif | |
be4ecfdf | 107 | |
1f4c0a4f JA |
108 | #define fio_cpu_clear(mask, cpu) (void) CPU_CLR((cpu), (mask)) |
109 | #define fio_cpu_set(mask, cpu) (void) CPU_SET((cpu), (mask)) | |
d2ce18b5 JA |
110 | |
111 | static inline int fio_cpuset_init(os_cpu_mask_t *mask) | |
112 | { | |
113 | CPU_ZERO(mask); | |
114 | return 0; | |
115 | } | |
116 | ||
117 | static inline int fio_cpuset_exit(os_cpu_mask_t *mask) | |
118 | { | |
119 | return 0; | |
120 | } | |
6d459ee7 JA |
121 | |
122 | #define FIO_MAX_CPUS CPU_SETSIZE | |
4d8947de | 123 | |
ebac4655 JA |
124 | static inline int ioprio_set(int which, int who, int ioprio) |
125 | { | |
126 | return syscall(__NR_ioprio_set, which, who, ioprio); | |
127 | } | |
128 | ||
47f767c1 JA |
129 | static inline int gettid(void) |
130 | { | |
131 | return syscall(__NR_gettid); | |
132 | } | |
133 | ||
97fbdfa1 JA |
134 | /* |
135 | * Just check for SPLICE_F_MOVE, if that isn't there, assume the others | |
136 | * aren't either. | |
137 | */ | |
138 | #ifndef SPLICE_F_MOVE | |
139 | #define SPLICE_F_MOVE (0x01) /* move pages instead of copying */ | |
140 | #define SPLICE_F_NONBLOCK (0x02) /* don't block on the pipe splicing (but */ | |
141 | /* we may still block on the fd we splice */ | |
142 | /* from/to, of course */ | |
143 | #define SPLICE_F_MORE (0x04) /* expect more data */ | |
144 | #define SPLICE_F_GIFT (0x08) /* pages passed in are a gift */ | |
8756e4d4 JA |
145 | |
146 | static inline int splice(int fdin, loff_t *off_in, int fdout, loff_t *off_out, | |
495ee9b6 | 147 | size_t len, unsigned int flags) |
8756e4d4 | 148 | { |
97fbdfa1 | 149 | return syscall(__NR_sys_splice, fdin, off_in, fdout, off_out, len, flags); |
8756e4d4 JA |
150 | } |
151 | ||
152 | static inline int tee(int fdin, int fdout, size_t len, unsigned int flags) | |
153 | { | |
97fbdfa1 | 154 | return syscall(__NR_sys_tee, fdin, fdout, len, flags); |
8756e4d4 JA |
155 | } |
156 | ||
157 | static inline int vmsplice(int fd, const struct iovec *iov, | |
158 | unsigned long nr_segs, unsigned int flags) | |
159 | { | |
97fbdfa1 | 160 | return syscall(__NR_sys_vmsplice, fd, iov, nr_segs, flags); |
8756e4d4 | 161 | } |
97fbdfa1 | 162 | #endif |
8756e4d4 | 163 | |
3feedc60 JA |
164 | #define SPLICE_DEF_SIZE (64*1024) |
165 | ||
b6959b55 | 166 | #ifdef FIO_HAVE_SYSLET |
bf0dc8fa IM |
167 | |
168 | struct syslet_uatom; | |
169 | struct async_head_user; | |
170 | ||
a4f4fdd7 JA |
171 | /* |
172 | * syslet stuff | |
173 | */ | |
bf0dc8fa IM |
174 | static inline struct syslet_uatom * |
175 | async_exec(struct syslet_uatom *atom, struct async_head_user *ahu) | |
a4f4fdd7 | 176 | { |
2b52511f | 177 | return (struct syslet_uatom *) syscall(__NR_async_exec, atom, ahu); |
a4f4fdd7 JA |
178 | } |
179 | ||
bf0dc8fa IM |
180 | static inline long |
181 | async_wait(unsigned long min_wait_events, unsigned long user_ring_idx, | |
182 | struct async_head_user *ahu) | |
a4f4fdd7 | 183 | { |
bf0dc8fa IM |
184 | return syscall(__NR_async_wait, min_wait_events, |
185 | user_ring_idx, ahu); | |
a4f4fdd7 JA |
186 | } |
187 | ||
7756b0d0 | 188 | static inline long async_thread(void *event, struct async_head_user *ahu) |
a4f4fdd7 | 189 | { |
7756b0d0 | 190 | return syscall(__NR_async_thread, event, ahu); |
a4f4fdd7 JA |
191 | } |
192 | ||
193 | static inline long umem_add(unsigned long *uptr, unsigned long inc) | |
194 | { | |
195 | return syscall(__NR_umem_add, uptr, inc); | |
196 | } | |
b6959b55 | 197 | #endif /* FIO_HAVE_SYSLET */ |
a4f4fdd7 | 198 | |
6cefbe33 JA |
199 | enum { |
200 | IOPRIO_CLASS_NONE, | |
201 | IOPRIO_CLASS_RT, | |
202 | IOPRIO_CLASS_BE, | |
203 | IOPRIO_CLASS_IDLE, | |
204 | }; | |
205 | ||
ebac4655 JA |
206 | enum { |
207 | IOPRIO_WHO_PROCESS = 1, | |
208 | IOPRIO_WHO_PGRP, | |
209 | IOPRIO_WHO_USER, | |
210 | }; | |
211 | ||
6cefbe33 | 212 | #define IOPRIO_BITS 16 |
ebac4655 JA |
213 | #define IOPRIO_CLASS_SHIFT 13 |
214 | ||
215 | #ifndef BLKGETSIZE64 | |
216 | #define BLKGETSIZE64 _IOR(0x12,114,size_t) | |
217 | #endif | |
218 | ||
e5b401d4 JA |
219 | #ifndef BLKFLSBUF |
220 | #define BLKFLSBUF _IO(0x12,97) | |
221 | #endif | |
222 | ||
a5f3027c JA |
223 | #ifndef BLKDISCARD |
224 | #define BLKDISCARD _IO(0x12,119) | |
225 | #endif | |
226 | ||
e2e58886 | 227 | static inline int blockdev_invalidate_cache(struct fio_file *f) |
e5b401d4 | 228 | { |
ecc314ba | 229 | return ioctl(f->fd, BLKFLSBUF); |
e5b401d4 JA |
230 | } |
231 | ||
ecc314ba | 232 | static inline int blockdev_size(struct fio_file *f, unsigned long long *bytes) |
ebac4655 | 233 | { |
ecc314ba | 234 | if (!ioctl(f->fd, BLKGETSIZE64, bytes)) |
ebac4655 JA |
235 | return 0; |
236 | ||
237 | return errno; | |
238 | } | |
239 | ||
32cd46a0 JA |
240 | static inline unsigned long long os_phys_mem(void) |
241 | { | |
242 | long pagesize, pages; | |
243 | ||
244 | pagesize = sysconf(_SC_PAGESIZE); | |
245 | pages = sysconf(_SC_PHYS_PAGES); | |
246 | if (pages == -1 || pagesize == -1) | |
247 | return 0; | |
248 | ||
249 | return (unsigned long long) pages * (unsigned long long) pagesize; | |
250 | } | |
251 | ||
6dfd46b9 JA |
252 | static inline void os_random_seed(unsigned long seed, os_random_state_t *rs) |
253 | { | |
254 | srand48_r(seed, rs); | |
255 | } | |
256 | ||
257 | static inline long os_random_long(os_random_state_t *rs) | |
258 | { | |
259 | long val; | |
260 | ||
261 | lrand48_r(rs, &val); | |
262 | return val; | |
263 | } | |
264 | ||
8cc7afa9 | 265 | static inline int fio_lookup_raw(dev_t dev, int *majdev, int *mindev) |
07e5b264 JA |
266 | { |
267 | struct raw_config_request rq; | |
268 | int fd; | |
269 | ||
270 | if (major(dev) != RAW_MAJOR) | |
8cc7afa9 | 271 | return 1; |
07e5b264 JA |
272 | |
273 | /* | |
274 | * we should be able to find /dev/rawctl or /dev/raw/rawctl | |
275 | */ | |
276 | fd = open("/dev/rawctl", O_RDONLY); | |
277 | if (fd < 0) { | |
278 | fd = open("/dev/raw/rawctl", O_RDONLY); | |
279 | if (fd < 0) | |
8cc7afa9 | 280 | return 1; |
07e5b264 JA |
281 | } |
282 | ||
283 | rq.raw_minor = minor(dev); | |
284 | if (ioctl(fd, RAW_GETBIND, &rq) < 0) { | |
285 | close(fd); | |
8cc7afa9 | 286 | return 1; |
07e5b264 JA |
287 | } |
288 | ||
289 | close(fd); | |
290 | *majdev = rq.block_major; | |
291 | *mindev = rq.block_minor; | |
8cc7afa9 | 292 | return 0; |
07e5b264 JA |
293 | } |
294 | ||
5b6f5c66 | 295 | #ifdef O_NOATIME |
5921e80c | 296 | #define FIO_O_NOATIME O_NOATIME |
5b6f5c66 JA |
297 | #else |
298 | #define FIO_O_NOATIME 0 | |
299 | #endif | |
5921e80c | 300 | |
a1c58075 JA |
301 | #ifdef MADV_REMOVE |
302 | #define FIO_MADV_FREE MADV_REMOVE | |
303 | #endif | |
304 | ||
610a730c JA |
305 | #if __BYTE_ORDER == __LITTLE_ENDIAN |
306 | #define FIO_LITTLE_ENDIAN | |
307 | #elif __BYTE_ORDER == __BIG_ENDIAN | |
308 | #define FIO_BIG_ENDIAN | |
309 | #else | |
310 | #error "Unknown endianness" | |
311 | #endif | |
312 | ||
ff245192 JA |
313 | #define fio_swap16(x) __bswap_16(x) |
314 | #define fio_swap32(x) __bswap_32(x) | |
315 | #define fio_swap64(x) __bswap_64(x) | |
316 | ||
eb7ccf38 JA |
317 | #define CACHE_LINE_FILE \ |
318 | "/sys/devices/system/cpu/cpu0/cache/index0/coherency_line_size" | |
319 | ||
320 | static inline int arch_cache_line_size(void) | |
321 | { | |
322 | char size[32]; | |
323 | int fd, ret; | |
324 | ||
325 | fd = open(CACHE_LINE_FILE, O_RDONLY); | |
326 | if (fd < 0) | |
327 | return -1; | |
328 | ||
329 | ret = read(fd, size, sizeof(size)); | |
ec76f15a JA |
330 | |
331 | close(fd); | |
332 | ||
eb7ccf38 JA |
333 | if (ret <= 0) |
334 | return -1; | |
ec76f15a JA |
335 | else |
336 | return atoi(size); | |
eb7ccf38 JA |
337 | } |
338 | ||
2e3bd4c2 JA |
339 | static inline unsigned long long get_fs_size(const char *path) |
340 | { | |
341 | unsigned long long ret; | |
342 | struct statfs s; | |
343 | ||
344 | if (statfs(path, &s) < 0) | |
345 | return -1ULL; | |
346 | ||
347 | ret = s.f_bsize; | |
348 | ret *= (unsigned long long) s.f_bfree; | |
349 | return ret; | |
350 | } | |
351 | ||
a5f3027c JA |
352 | static inline int os_trim(int fd, unsigned long long start, |
353 | unsigned long long len) | |
354 | { | |
355 | uint64_t range[2]; | |
356 | ||
357 | range[0] = start; | |
358 | range[1] = len; | |
359 | ||
360 | if (!ioctl(fd, BLKDISCARD, range)) | |
361 | return 0; | |
362 | ||
363 | return errno; | |
364 | } | |
365 | ||
ebac4655 | 366 | #endif |