34 #ifndef _RTE_COMMON_H_ 35 #define _RTE_COMMON_H_ 54 #include <rte_config.h> 57 #define typeof __typeof__ 65 #if !defined(__STDC_VERSION__) || __STDC_VERSION__ < 201112L 66 #define RTE_STD_C11 __extension__ 72 #ifdef RTE_TOOLCHAIN_GCC 73 #define GCC_VERSION (__GNUC__ * 10000 + __GNUC_MINOR__ * 100 + \ 77 #ifdef RTE_ARCH_STRICT_ALIGN 79 typedef uint32_t unaligned_uint32_t __attribute__ ((aligned(1)));
80 typedef uint16_t unaligned_uint16_t __attribute__ ((aligned(1)));
83 typedef uint32_t unaligned_uint32_t;
84 typedef uint16_t unaligned_uint16_t;
90 #define __rte_aligned(a) __attribute__((__aligned__(a))) 95 #define __rte_packed __attribute__((__packed__)) 98 #define __rte_deprecated __attribute__((__deprecated__)) 105 #define __rte_unused __attribute__((__unused__)) 111 #define RTE_SET_USED(x) (void)(x) 121 #define RTE_INIT(func) \ 122 static void __attribute__((constructor, used)) func(void) 133 #define RTE_INIT_PRIO(func, prio) \ 134 static void __attribute__((constructor(prio), used)) func(void) 139 #define __rte_always_inline inline __attribute__((always_inline)) 144 #define __rte_noinline __attribute__((noinline)) 151 #define RTE_PTR_ADD(ptr, x) ((void*)((uintptr_t)(ptr) + (x))) 156 #define RTE_PTR_SUB(ptr, x) ((void*)((uintptr_t)ptr - (x))) 163 #define RTE_PTR_DIFF(ptr1, ptr2) ((uintptr_t)(ptr1) - (uintptr_t)(ptr2)) 174 #define RTE_PTR_ALIGN_FLOOR(ptr, align) \ 175 ((typeof(ptr))RTE_ALIGN_FLOOR((uintptr_t)ptr, align)) 183 #define RTE_ALIGN_FLOOR(val, align) \ 184 (typeof(val))((val) & (~((typeof(val))((align) - 1)))) 192 #define RTE_PTR_ALIGN_CEIL(ptr, align) \ 193 RTE_PTR_ALIGN_FLOOR((typeof(ptr))RTE_PTR_ADD(ptr, (align) - 1), align) 201 #define RTE_ALIGN_CEIL(val, align) \ 202 RTE_ALIGN_FLOOR(((val) + ((typeof(val)) (align) - 1)), align) 211 #define RTE_PTR_ALIGN(ptr, align) RTE_PTR_ALIGN_CEIL(ptr, align) 220 #define RTE_ALIGN(val, align) RTE_ALIGN_CEIL(val, align) 244 #define RTE_BUILD_BUG_ON(condition) ((void)sizeof(char[1 - 2*!!(condition)])) 257 return n && !(n & (n - 1));
269 static inline uint32_t
291 static inline uint64_t
310 #define RTE_MIN(a, b) \ 312 typeof (a) _a = (a); \ 313 typeof (b) _b = (b); \ 320 #define RTE_MAX(a, b) \ 322 typeof (a) _a = (a); \ 323 typeof (b) _b = (b); \ 340 static inline uint32_t
343 return (uint32_t)__builtin_ctz(v);
354 static inline uint32_t
378 return (x == 0) ? 0 : 32 - __builtin_clz(x);
384 #define offsetof(TYPE, MEMBER) __builtin_offsetof (TYPE, MEMBER) 402 #define container_of(ptr, type, member) __extension__ ({ \ 403 const typeof(((type *)0)->member) *_ptr = (ptr); \ 404 __attribute__((unused)) type *_target_ptr = \ 406 (type *)(((uintptr_t)_ptr) - offsetof(type, member)); \ 410 #define _RTE_STR(x) #x 412 #define RTE_STR(x) _RTE_STR(x) 419 #define RTE_FMT(fmt, ...) fmt "%.0s", __VA_ARGS__ "" 420 #define RTE_FMT_HEAD(fmt, ...) fmt 421 #define RTE_FMT_TAIL(fmt, ...) __VA_ARGS__ 424 #define RTE_LEN2MASK(ln, tp) \ 425 ((tp)((uint64_t)-1 >> (sizeof(uint64_t) * CHAR_BIT - (ln)))) 428 #define RTE_DIM(a) (sizeof (a) / sizeof ((a)[0])) 444 static inline uint64_t
448 unsigned long long size;
450 while (isspace((
int)*str))
456 size = strtoull(str, &endptr, 0);
464 case 'G':
case 'g': size *= 1024;
465 case 'M':
case 'm': size *= 1024;
466 case 'K':
case 'k': size *= 1024;
487 rte_exit(
int exit_code,
const char *format, ...)
488 __attribute__((noreturn))
489 __attribute__((format(printf, 2, 3)));
static int rte_is_aligned(void *ptr, unsigned align)
static int rte_fls_u32(uint32_t x)
static uint64_t rte_align64pow2(uint64_t v)
static uint32_t rte_log2_u32(uint32_t v)
static uint32_t rte_bsf32(uint32_t v)
static uint32_t rte_align32pow2(uint32_t x)
uint64_t unaligned_uint64_t
#define RTE_PTR_ALIGN(ptr, align)
static int rte_is_power_of_2(uint32_t n)
void rte_exit(int exit_code, const char *format,...)
static uint64_t rte_str_to_size(const char *str)