| 1 | #ifndef FIO_OS_DRAGONFLY_H |
| 2 | #define FIO_OS_DRAGONFLY_H |
| 3 | |
| 4 | #define FIO_OS os_dragonfly |
| 5 | |
| 6 | #include <errno.h> |
| 7 | #include <unistd.h> |
| 8 | #include <sys/param.h> |
| 9 | #include <sys/sysctl.h> |
| 10 | #include <sys/statvfs.h> |
| 11 | #include <sys/diskslice.h> |
| 12 | #include <sys/ioctl_compat.h> |
| 13 | #include <sys/usched.h> |
| 14 | #include <sys/resource.h> |
| 15 | |
| 16 | #include "../file.h" |
| 17 | |
| 18 | #define FIO_HAVE_ODIRECT |
| 19 | #define FIO_USE_GENERIC_RAND |
| 20 | #define FIO_USE_GENERIC_INIT_RANDOM_STATE |
| 21 | #define FIO_HAVE_FS_STAT |
| 22 | #define FIO_HAVE_TRIM |
| 23 | #define FIO_HAVE_CHARDEV_SIZE |
| 24 | #define FIO_HAVE_GETTID |
| 25 | #define FIO_HAVE_CPU_AFFINITY |
| 26 | #define FIO_HAVE_IOPRIO |
| 27 | #define FIO_HAVE_SHM_ATTACH_REMOVED |
| 28 | |
| 29 | #define OS_MAP_ANON MAP_ANON |
| 30 | |
| 31 | #ifndef PTHREAD_STACK_MIN |
| 32 | #define PTHREAD_STACK_MIN 4096 |
| 33 | #endif |
| 34 | |
| 35 | #define fio_swap16(x) bswap16(x) |
| 36 | #define fio_swap32(x) bswap32(x) |
| 37 | #define fio_swap64(x) bswap64(x) |
| 38 | |
| 39 | /* This is supposed to equal (sizeof(cpumask_t)*8) */ |
| 40 | #define FIO_MAX_CPUS SMP_MAXCPU |
| 41 | |
| 42 | typedef off_t off64_t; |
| 43 | typedef cpumask_t os_cpu_mask_t; |
| 44 | |
| 45 | /* |
| 46 | * These macros are copied from sys/cpu/x86_64/include/types.h. |
| 47 | * It's okay to copy from arch dependent header because x86_64 is the only |
| 48 | * supported arch, and no other arch is going to be supported any time soon. |
| 49 | * |
| 50 | * These are supposed to be able to be included from userspace by defining |
| 51 | * _KERNEL_STRUCTURES, however this scheme is badly broken that enabling it |
| 52 | * causes compile-time conflicts with other headers. Although the current |
| 53 | * upstream code no longer requires _KERNEL_STRUCTURES, they should be kept |
| 54 | * here for compatibility with older versions. |
| 55 | */ |
| 56 | #ifndef CPUMASK_SIMPLE |
| 57 | #define CPUMASK_SIMPLE(cpu) ((uint64_t)1 << (cpu)) |
| 58 | #define CPUMASK_TESTBIT(val, i) ((val).ary[((i) >> 6) & 3] & \ |
| 59 | CPUMASK_SIMPLE((i) & 63)) |
| 60 | #define CPUMASK_ORBIT(mask, i) ((mask).ary[((i) >> 6) & 3] |= \ |
| 61 | CPUMASK_SIMPLE((i) & 63)) |
| 62 | #define CPUMASK_NANDBIT(mask, i) ((mask).ary[((i) >> 6) & 3] &= \ |
| 63 | ~CPUMASK_SIMPLE((i) & 63)) |
| 64 | #define CPUMASK_ASSZERO(mask) do { \ |
| 65 | (mask).ary[0] = 0; \ |
| 66 | (mask).ary[1] = 0; \ |
| 67 | (mask).ary[2] = 0; \ |
| 68 | (mask).ary[3] = 0; \ |
| 69 | } while(0) |
| 70 | #endif |
| 71 | |
| 72 | /* |
| 73 | * Define USCHED_GET_CPUMASK as the macro didn't exist until release 4.5. |
| 74 | * usched_set(2) returns EINVAL if the kernel doesn't support it. |
| 75 | * |
| 76 | * Also note usched_set(2) works only for the current thread regardless of |
| 77 | * the command type. It doesn't work against another thread regardless of |
| 78 | * a caller's privilege. A caller would generally specify 0 for pid for the |
| 79 | * current thread though that's the only choice. See BUGS in usched_set(2). |
| 80 | */ |
| 81 | #ifndef USCHED_GET_CPUMASK |
| 82 | #define USCHED_GET_CPUMASK 5 |
| 83 | #endif |
| 84 | |
| 85 | /* No CPU_COUNT(), but use the default function defined in os/os.h */ |
| 86 | #define fio_cpu_count(mask) CPU_COUNT((mask)) |
| 87 | |
| 88 | static inline int fio_cpuset_init(os_cpu_mask_t *mask) |
| 89 | { |
| 90 | CPUMASK_ASSZERO(*mask); |
| 91 | return 0; |
| 92 | } |
| 93 | |
| 94 | static inline int fio_cpuset_exit(os_cpu_mask_t *mask) |
| 95 | { |
| 96 | return 0; |
| 97 | } |
| 98 | |
| 99 | static inline void fio_cpu_clear(os_cpu_mask_t *mask, int cpu) |
| 100 | { |
| 101 | CPUMASK_NANDBIT(*mask, cpu); |
| 102 | } |
| 103 | |
| 104 | static inline void fio_cpu_set(os_cpu_mask_t *mask, int cpu) |
| 105 | { |
| 106 | CPUMASK_ORBIT(*mask, cpu); |
| 107 | } |
| 108 | |
| 109 | static inline int fio_cpu_isset(os_cpu_mask_t *mask, int cpu) |
| 110 | { |
| 111 | if (CPUMASK_TESTBIT(*mask, cpu)) |
| 112 | return 1; |
| 113 | |
| 114 | return 0; |
| 115 | } |
| 116 | |
| 117 | static inline int fio_setaffinity(int pid, os_cpu_mask_t mask) |
| 118 | { |
| 119 | int i, firstcall = 1; |
| 120 | |
| 121 | /* 0 for the current thread, see BUGS in usched_set(2) */ |
| 122 | pid = 0; |
| 123 | |
| 124 | for (i = 0; i < FIO_MAX_CPUS; i++) { |
| 125 | if (!CPUMASK_TESTBIT(mask, i)) |
| 126 | continue; |
| 127 | if (firstcall) { |
| 128 | if (usched_set(pid, USCHED_SET_CPU, &i, sizeof(int))) |
| 129 | return -1; |
| 130 | firstcall = 0; |
| 131 | } else { |
| 132 | if (usched_set(pid, USCHED_ADD_CPU, &i, sizeof(int))) |
| 133 | return -1; |
| 134 | } |
| 135 | } |
| 136 | |
| 137 | return 0; |
| 138 | } |
| 139 | |
| 140 | static inline int fio_getaffinity(int pid, os_cpu_mask_t *mask) |
| 141 | { |
| 142 | /* 0 for the current thread, see BUGS in usched_set(2) */ |
| 143 | pid = 0; |
| 144 | |
| 145 | if (usched_set(pid, USCHED_GET_CPUMASK, mask, sizeof(*mask))) |
| 146 | return -1; |
| 147 | |
| 148 | return 0; |
| 149 | } |
| 150 | |
| 151 | /* fio code is Linux based, so rename macros to Linux style */ |
| 152 | #define IOPRIO_WHO_PROCESS PRIO_PROCESS |
| 153 | #define IOPRIO_WHO_PGRP PRIO_PGRP |
| 154 | #define IOPRIO_WHO_USER PRIO_USER |
| 155 | |
| 156 | #define IOPRIO_MIN_PRIO 1 /* lowest priority */ |
| 157 | #define IOPRIO_MAX_PRIO 10 /* highest priority */ |
| 158 | |
| 159 | /* |
| 160 | * Prototypes declared in sys/sys/resource.h are preventing from defining |
| 161 | * ioprio_set() with 4 arguments, so define fio's ioprio_set() as a macro. |
| 162 | * Note that there is no idea of class within ioprio_set(2) unlike Linux. |
| 163 | */ |
| 164 | #define ioprio_set(which, who, ioprio_class, ioprio) \ |
| 165 | ioprio_set(which, who, ioprio) |
| 166 | |
| 167 | static inline int blockdev_size(struct fio_file *f, unsigned long long *bytes) |
| 168 | { |
| 169 | struct partinfo pi; |
| 170 | |
| 171 | if (!ioctl(f->fd, DIOCGPART, &pi)) { |
| 172 | *bytes = (unsigned long long) pi.media_size; |
| 173 | return 0; |
| 174 | } |
| 175 | |
| 176 | *bytes = 0; |
| 177 | return errno; |
| 178 | } |
| 179 | |
| 180 | static inline int chardev_size(struct fio_file *f, unsigned long long *bytes) |
| 181 | { |
| 182 | return blockdev_size(f, bytes); |
| 183 | } |
| 184 | |
| 185 | static inline int blockdev_invalidate_cache(struct fio_file *f) |
| 186 | { |
| 187 | return ENOTSUP; |
| 188 | } |
| 189 | |
| 190 | static inline unsigned long long os_phys_mem(void) |
| 191 | { |
| 192 | int mib[2] = { CTL_HW, HW_PHYSMEM }; |
| 193 | uint64_t mem; |
| 194 | size_t len = sizeof(mem); |
| 195 | |
| 196 | sysctl(mib, 2, &mem, &len, NULL, 0); |
| 197 | return mem; |
| 198 | } |
| 199 | |
| 200 | static inline int gettid(void) |
| 201 | { |
| 202 | return (int) lwp_gettid(); |
| 203 | } |
| 204 | |
| 205 | static inline unsigned long long get_fs_free_size(const char *path) |
| 206 | { |
| 207 | unsigned long long ret; |
| 208 | struct statvfs s; |
| 209 | |
| 210 | if (statvfs(path, &s) < 0) |
| 211 | return -1ULL; |
| 212 | |
| 213 | ret = s.f_frsize; |
| 214 | ret *= (unsigned long long) s.f_bfree; |
| 215 | return ret; |
| 216 | } |
| 217 | |
| 218 | static inline int os_trim(int fd, unsigned long long start, |
| 219 | unsigned long long len) |
| 220 | { |
| 221 | off_t range[2]; |
| 222 | |
| 223 | range[0] = start; |
| 224 | range[1] = len; |
| 225 | |
| 226 | if (!ioctl(fd, IOCTLTRIM, range)) |
| 227 | return 0; |
| 228 | |
| 229 | return errno; |
| 230 | } |
| 231 | |
| 232 | #ifdef MADV_FREE |
| 233 | #define FIO_MADV_FREE MADV_FREE |
| 234 | #endif |
| 235 | |
| 236 | static inline int shm_attach_to_open_removed(void) |
| 237 | { |
| 238 | int x; |
| 239 | size_t len = sizeof(x); |
| 240 | |
| 241 | if (sysctlbyname("kern.ipc.shm_allow_removed", &x, &len, NULL, 0) < 0) |
| 242 | return 0; |
| 243 | |
| 244 | return x > 0 ? 1 : 0; |
| 245 | } |
| 246 | |
| 247 | #endif |