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_RAND
29 #define FIO_USE_GENERIC_INIT_RANDOM_STATE
30 #define FIO_HAVE_FS_STAT
32 #define FIO_HAVE_CHARDEV_SIZE
33 #define FIO_HAVE_GETTID
34 #define FIO_HAVE_CPU_AFFINITY
35 #define FIO_HAVE_IOPRIO
36 #define FIO_HAVE_SHM_ATTACH_REMOVED
38 #define OS_MAP_ANON MAP_ANON
40 #ifndef PTHREAD_STACK_MIN
41 #define PTHREAD_STACK_MIN 4096
44 #define fio_swap16(x) bswap16(x)
45 #define fio_swap32(x) bswap32(x)
46 #define fio_swap64(x) bswap64(x)
48 /* This is supposed to equal (sizeof(cpumask_t)*8) */
49 #define FIO_MAX_CPUS SMP_MAXCPU
51 typedef off_t off64_t;
52 typedef cpumask_t os_cpu_mask_t;
55 * These macros are copied from sys/cpu/x86_64/include/types.h.
56 * It's okay to copy from arch dependent header because x86_64 is the only
57 * supported arch, and no other arch is going to be supported any time soon.
59 * These are supposed to be able to be included from userspace by defining
60 * _KERNEL_STRUCTURES, however this scheme is badly broken that enabling it
61 * causes compile-time conflicts with other headers. Although the current
62 * upstream code no longer requires _KERNEL_STRUCTURES, they should be kept
63 * here for compatibility with older versions.
65 #ifndef CPUMASK_SIMPLE
66 #define CPUMASK_SIMPLE(cpu) ((uint64_t)1 << (cpu))
67 #define CPUMASK_TESTBIT(val, i) ((val).ary[((i) >> 6) & 3] & \
68 CPUMASK_SIMPLE((i) & 63))
69 #define CPUMASK_ORBIT(mask, i) ((mask).ary[((i) >> 6) & 3] |= \
70 CPUMASK_SIMPLE((i) & 63))
71 #define CPUMASK_NANDBIT(mask, i) ((mask).ary[((i) >> 6) & 3] &= \
72 ~CPUMASK_SIMPLE((i) & 63))
73 #define CPUMASK_ASSZERO(mask) do { \
82 * Define USCHED_GET_CPUMASK as the macro didn't exist until release 4.5.
83 * usched_set(2) returns EINVAL if the kernel doesn't support it.
85 * Also note usched_set(2) works only for the current thread regardless of
86 * the command type. It doesn't work against another thread regardless of
87 * a caller's privilege. A caller would generally specify 0 for pid for the
88 * current thread though that's the only choice. See BUGS in usched_set(2).
90 #ifndef USCHED_GET_CPUMASK
91 #define USCHED_GET_CPUMASK 5
94 /* No CPU_COUNT(), but use the default function defined in os/os.h */
95 #define fio_cpu_count(mask) CPU_COUNT((mask))
97 static inline int fio_cpuset_init(os_cpu_mask_t *mask)
99 CPUMASK_ASSZERO(*mask);
103 static inline int fio_cpuset_exit(os_cpu_mask_t *mask)
108 static inline void fio_cpu_clear(os_cpu_mask_t *mask, int cpu)
110 CPUMASK_NANDBIT(*mask, cpu);
113 static inline void fio_cpu_set(os_cpu_mask_t *mask, int cpu)
115 CPUMASK_ORBIT(*mask, cpu);
118 static inline bool fio_cpu_isset(os_cpu_mask_t *mask, int cpu)
120 return CPUMASK_TESTBIT(*mask, cpu) != 0;
123 static inline int fio_setaffinity(int pid, os_cpu_mask_t mask)
125 int i, firstcall = 1;
127 /* 0 for the current thread, see BUGS in usched_set(2) */
130 for (i = 0; i < FIO_MAX_CPUS; i++) {
131 if (!CPUMASK_TESTBIT(mask, i))
134 if (usched_set(pid, USCHED_SET_CPU, &i, sizeof(int)))
138 if (usched_set(pid, USCHED_ADD_CPU, &i, sizeof(int)))
146 static inline int fio_getaffinity(int pid, os_cpu_mask_t *mask)
148 /* 0 for the current thread, see BUGS in usched_set(2) */
151 if (usched_set(pid, USCHED_GET_CPUMASK, mask, sizeof(*mask)))
157 /* fio code is Linux based, so rename macros to Linux style */
158 #define IOPRIO_WHO_PROCESS PRIO_PROCESS
159 #define IOPRIO_WHO_PGRP PRIO_PGRP
160 #define IOPRIO_WHO_USER PRIO_USER
162 #define IOPRIO_MIN_PRIO 1 /* lowest priority */
163 #define IOPRIO_MAX_PRIO 10 /* highest priority */
166 * Prototypes declared in sys/sys/resource.h are preventing from defining
167 * ioprio_set() with 4 arguments, so define fio's ioprio_set() as a macro.
168 * Note that there is no idea of class within ioprio_set(2) unlike Linux.
170 #define ioprio_set(which, who, ioprio_class, ioprio) \
171 ioprio_set(which, who, ioprio)
173 static inline int blockdev_size(struct fio_file *f, unsigned long long *bytes)
177 if (!ioctl(f->fd, DIOCGPART, &pi)) {
178 *bytes = (unsigned long long) pi.media_size;
186 static inline int chardev_size(struct fio_file *f, unsigned long long *bytes)
188 return blockdev_size(f, bytes);
191 static inline int blockdev_invalidate_cache(struct fio_file *f)
196 static inline unsigned long long os_phys_mem(void)
198 int mib[2] = { CTL_HW, HW_PHYSMEM };
200 size_t len = sizeof(mem);
202 sysctl(mib, 2, &mem, &len, NULL, 0);
206 static inline int gettid(void)
208 return (int) lwp_gettid();
211 static inline unsigned long long get_fs_free_size(const char *path)
213 unsigned long long ret;
216 if (statvfs(path, &s) < 0)
220 ret *= (unsigned long long) s.f_bfree;
224 static inline int os_trim(struct fio_file *f, unsigned long long start,
225 unsigned long long len)
232 if (!ioctl(f->fd, DAIOCTRIM, range))
239 #define FIO_MADV_FREE MADV_FREE
242 static inline int shm_attach_to_open_removed(void)
245 size_t len = sizeof(x);
247 if (sysctlbyname("kern.ipc.shm_allow_removed", &x, &len, NULL, 0) < 0)
250 return x > 0 ? 1 : 0;