1 #ifndef FIO_OS_DRAGONFLY_H
2 #define FIO_OS_DRAGONFLY_H
4 #define FIO_OS os_dragonfly
8 #include <sys/endian.h>
10 #include <sys/sysctl.h>
11 #include <sys/statvfs.h>
12 #include <sys/diskslice.h>
13 #include <sys/usched.h>
14 #include <sys/resource.h>
16 /* API changed during "5.3 development" */
17 #if __DragonFly_version < 500302
18 #include <sys/ioctl_compat.h>
19 #define DAIOCTRIM IOCTLTRIM
21 #include <bus/cam/scsi/scsi_daio.h>
25 #include "../lib/types.h"
27 #define FIO_HAVE_ODIRECT
28 #define FIO_USE_GENERIC_INIT_RANDOM_STATE
29 #define FIO_HAVE_FS_STAT
31 #define FIO_HAVE_CHARDEV_SIZE
32 #define FIO_HAVE_GETTID
33 #define FIO_HAVE_CPU_AFFINITY
34 #define FIO_HAVE_IOPRIO
35 #define FIO_HAVE_SHM_ATTACH_REMOVED
37 #define OS_MAP_ANON MAP_ANON
39 #ifndef PTHREAD_STACK_MIN
40 #define PTHREAD_STACK_MIN 4096
43 #define fio_swap16(x) bswap16(x)
44 #define fio_swap32(x) bswap32(x)
45 #define fio_swap64(x) bswap64(x)
47 /* This is supposed to equal (sizeof(cpumask_t)*8) */
48 #define FIO_MAX_CPUS SMP_MAXCPU
50 typedef cpumask_t os_cpu_mask_t;
53 * These macros are copied from sys/cpu/x86_64/include/types.h.
54 * It's okay to copy from arch dependent header because x86_64 is the only
55 * supported arch, and no other arch is going to be supported any time soon.
57 * These are supposed to be able to be included from userspace by defining
58 * _KERNEL_STRUCTURES, however this scheme is badly broken that enabling it
59 * causes compile-time conflicts with other headers. Although the current
60 * upstream code no longer requires _KERNEL_STRUCTURES, they should be kept
61 * here for compatibility with older versions.
63 #ifndef CPUMASK_SIMPLE
64 #define CPUMASK_SIMPLE(cpu) ((uint64_t)1 << (cpu))
65 #define CPUMASK_TESTBIT(val, i) ((val).ary[((i) >> 6) & 3] & \
66 CPUMASK_SIMPLE((i) & 63))
67 #define CPUMASK_ORBIT(mask, i) ((mask).ary[((i) >> 6) & 3] |= \
68 CPUMASK_SIMPLE((i) & 63))
69 #define CPUMASK_NANDBIT(mask, i) ((mask).ary[((i) >> 6) & 3] &= \
70 ~CPUMASK_SIMPLE((i) & 63))
71 #define CPUMASK_ASSZERO(mask) do { \
80 * Define USCHED_GET_CPUMASK as the macro didn't exist until release 4.5.
81 * usched_set(2) returns EINVAL if the kernel doesn't support it.
83 * Also note usched_set(2) works only for the current thread regardless of
84 * the command type. It doesn't work against another thread regardless of
85 * a caller's privilege. A caller would generally specify 0 for pid for the
86 * current thread though that's the only choice. See BUGS in usched_set(2).
88 #ifndef USCHED_GET_CPUMASK
89 #define USCHED_GET_CPUMASK 5
92 /* No CPU_COUNT(), but use the default function defined in os/os.h */
93 #define fio_cpu_count(mask) CPU_COUNT((mask))
95 #ifdef CONFIG_PTHREAD_GETAFFINITY
96 #define FIO_HAVE_GET_THREAD_AFFINITY
97 #define fio_get_thread_affinity(mask) \
98 pthread_getaffinity_np(pthread_self(), sizeof(mask), &(mask))
101 static inline int fio_cpuset_init(os_cpu_mask_t *mask)
103 CPUMASK_ASSZERO(*mask);
107 static inline int fio_cpuset_exit(os_cpu_mask_t *mask)
112 static inline void fio_cpu_clear(os_cpu_mask_t *mask, int cpu)
114 CPUMASK_NANDBIT(*mask, cpu);
117 static inline void fio_cpu_set(os_cpu_mask_t *mask, int cpu)
119 CPUMASK_ORBIT(*mask, cpu);
122 static inline bool fio_cpu_isset(os_cpu_mask_t *mask, int cpu)
124 return CPUMASK_TESTBIT(*mask, cpu) != 0;
127 static inline int fio_setaffinity(int pid, os_cpu_mask_t mask)
129 int i, firstcall = 1;
131 /* 0 for the current thread, see BUGS in usched_set(2) */
134 for (i = 0; i < FIO_MAX_CPUS; i++) {
135 if (!CPUMASK_TESTBIT(mask, i))
138 if (usched_set(pid, USCHED_SET_CPU, &i, sizeof(int)))
142 if (usched_set(pid, USCHED_ADD_CPU, &i, sizeof(int)))
150 static inline int fio_getaffinity(int pid, os_cpu_mask_t *mask)
152 /* 0 for the current thread, see BUGS in usched_set(2) */
155 if (usched_set(pid, USCHED_GET_CPUMASK, mask, sizeof(*mask)))
161 /* fio code is Linux based, so rename macros to Linux style */
162 #define IOPRIO_WHO_PROCESS PRIO_PROCESS
163 #define IOPRIO_WHO_PGRP PRIO_PGRP
164 #define IOPRIO_WHO_USER PRIO_USER
166 #define IOPRIO_MIN_PRIO 1 /* lowest priority */
167 #define IOPRIO_MAX_PRIO 10 /* highest priority */
170 * Prototypes declared in sys/sys/resource.h are preventing from defining
171 * ioprio_set() with 4 arguments, so define fio's ioprio_set() as a macro.
172 * Note that there is no idea of class within ioprio_set(2) unlike Linux.
174 #define ioprio_value(ioprio_class, ioprio) (ioprio)
175 #define ioprio_set(which, who, ioprio_class, ioprio) \
176 ioprio_set(which, who, ioprio)
178 static inline int blockdev_size(struct fio_file *f, unsigned long long *bytes)
182 if (!ioctl(f->fd, DIOCGPART, &pi)) {
183 *bytes = (unsigned long long) pi.media_size;
191 static inline int chardev_size(struct fio_file *f, unsigned long long *bytes)
193 return blockdev_size(f, bytes);
196 static inline int blockdev_invalidate_cache(struct fio_file *f)
201 static inline unsigned long long os_phys_mem(void)
203 int mib[2] = { CTL_HW, HW_PHYSMEM };
205 size_t len = sizeof(mem);
207 sysctl(mib, 2, &mem, &len, NULL, 0);
211 #ifndef CONFIG_HAVE_GETTID
212 static inline int gettid(void)
214 return (int) lwp_gettid();
218 static inline unsigned long long get_fs_free_size(const char *path)
220 unsigned long long ret;
223 if (statvfs(path, &s) < 0)
227 ret *= (unsigned long long) s.f_bfree;
231 static inline int os_trim(struct fio_file *f, unsigned long long start,
232 unsigned long long len)
239 if (!ioctl(f->fd, DAIOCTRIM, range))
246 #define FIO_MADV_FREE MADV_FREE
249 static inline int shm_attach_to_open_removed(void)
252 size_t len = sizeof(x);
254 if (sysctlbyname("kern.ipc.shm_allow_removed", &x, &len, NULL, 0) < 0)
257 return x > 0 ? 1 : 0;