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 off_t off64_t;
51 typedef cpumask_t os_cpu_mask_t;
54 * These macros are copied from sys/cpu/x86_64/include/types.h.
55 * It's okay to copy from arch dependent header because x86_64 is the only
56 * supported arch, and no other arch is going to be supported any time soon.
58 * These are supposed to be able to be included from userspace by defining
59 * _KERNEL_STRUCTURES, however this scheme is badly broken that enabling it
60 * causes compile-time conflicts with other headers. Although the current
61 * upstream code no longer requires _KERNEL_STRUCTURES, they should be kept
62 * here for compatibility with older versions.
64 #ifndef CPUMASK_SIMPLE
65 #define CPUMASK_SIMPLE(cpu) ((uint64_t)1 << (cpu))
66 #define CPUMASK_TESTBIT(val, i) ((val).ary[((i) >> 6) & 3] & \
67 CPUMASK_SIMPLE((i) & 63))
68 #define CPUMASK_ORBIT(mask, i) ((mask).ary[((i) >> 6) & 3] |= \
69 CPUMASK_SIMPLE((i) & 63))
70 #define CPUMASK_NANDBIT(mask, i) ((mask).ary[((i) >> 6) & 3] &= \
71 ~CPUMASK_SIMPLE((i) & 63))
72 #define CPUMASK_ASSZERO(mask) do { \
81 * Define USCHED_GET_CPUMASK as the macro didn't exist until release 4.5.
82 * usched_set(2) returns EINVAL if the kernel doesn't support it.
84 * Also note usched_set(2) works only for the current thread regardless of
85 * the command type. It doesn't work against another thread regardless of
86 * a caller's privilege. A caller would generally specify 0 for pid for the
87 * current thread though that's the only choice. See BUGS in usched_set(2).
89 #ifndef USCHED_GET_CPUMASK
90 #define USCHED_GET_CPUMASK 5
93 /* No CPU_COUNT(), but use the default function defined in os/os.h */
94 #define fio_cpu_count(mask) CPU_COUNT((mask))
96 static inline int fio_cpuset_init(os_cpu_mask_t *mask)
98 CPUMASK_ASSZERO(*mask);
102 static inline int fio_cpuset_exit(os_cpu_mask_t *mask)
107 static inline void fio_cpu_clear(os_cpu_mask_t *mask, int cpu)
109 CPUMASK_NANDBIT(*mask, cpu);
112 static inline void fio_cpu_set(os_cpu_mask_t *mask, int cpu)
114 CPUMASK_ORBIT(*mask, cpu);
117 static inline bool fio_cpu_isset(os_cpu_mask_t *mask, int cpu)
119 return CPUMASK_TESTBIT(*mask, cpu) != 0;
122 static inline int fio_setaffinity(int pid, os_cpu_mask_t mask)
124 int i, firstcall = 1;
126 /* 0 for the current thread, see BUGS in usched_set(2) */
129 for (i = 0; i < FIO_MAX_CPUS; i++) {
130 if (!CPUMASK_TESTBIT(mask, i))
133 if (usched_set(pid, USCHED_SET_CPU, &i, sizeof(int)))
137 if (usched_set(pid, USCHED_ADD_CPU, &i, sizeof(int)))
145 static inline int fio_getaffinity(int pid, os_cpu_mask_t *mask)
147 /* 0 for the current thread, see BUGS in usched_set(2) */
150 if (usched_set(pid, USCHED_GET_CPUMASK, mask, sizeof(*mask)))
156 /* fio code is Linux based, so rename macros to Linux style */
157 #define IOPRIO_WHO_PROCESS PRIO_PROCESS
158 #define IOPRIO_WHO_PGRP PRIO_PGRP
159 #define IOPRIO_WHO_USER PRIO_USER
161 #define IOPRIO_MIN_PRIO 1 /* lowest priority */
162 #define IOPRIO_MAX_PRIO 10 /* highest priority */
165 * Prototypes declared in sys/sys/resource.h are preventing from defining
166 * ioprio_set() with 4 arguments, so define fio's ioprio_set() as a macro.
167 * Note that there is no idea of class within ioprio_set(2) unlike Linux.
169 #define ioprio_set(which, who, ioprio_class, ioprio) \
170 ioprio_set(which, who, ioprio)
172 static inline int blockdev_size(struct fio_file *f, unsigned long long *bytes)
176 if (!ioctl(f->fd, DIOCGPART, &pi)) {
177 *bytes = (unsigned long long) pi.media_size;
185 static inline int chardev_size(struct fio_file *f, unsigned long long *bytes)
187 return blockdev_size(f, bytes);
190 static inline int blockdev_invalidate_cache(struct fio_file *f)
195 static inline unsigned long long os_phys_mem(void)
197 int mib[2] = { CTL_HW, HW_PHYSMEM };
199 size_t len = sizeof(mem);
201 sysctl(mib, 2, &mem, &len, NULL, 0);
205 #ifndef CONFIG_HAVE_GETTID
206 static inline int gettid(void)
208 return (int) lwp_gettid();
212 static inline unsigned long long get_fs_free_size(const char *path)
214 unsigned long long ret;
217 if (statvfs(path, &s) < 0)
221 ret *= (unsigned long long) s.f_bfree;
225 static inline int os_trim(struct fio_file *f, unsigned long long start,
226 unsigned long long len)
233 if (!ioctl(f->fd, DAIOCTRIM, range))
240 #define FIO_MADV_FREE MADV_FREE
243 static inline int shm_attach_to_open_removed(void)
246 size_t len = sizeof(x);
248 if (sysctlbyname("kern.ipc.shm_allow_removed", &x, &len, NULL, 0) < 0)
251 return x > 0 ? 1 : 0;