25 #include <rte_config.h>
31 #define typeof __typeof__
39 #if !defined(__STDC_VERSION__) || __STDC_VERSION__ < 201112L
40 #define RTE_STD_C11 __extension__
51 #define RTE_CC_IS_GNU 0
54 #elif defined __INTEL_COMPILER
56 #elif defined __GNUC__
59 #define RTE_CC_IS_GNU 1
62 #define GCC_VERSION (__GNUC__ * 10000 + __GNUC_MINOR__ * 100 + \
69 #define __rte_aligned(a) __attribute__((__aligned__(a)))
71 #ifdef RTE_ARCH_STRICT_ALIGN
76 typedef uint64_t unaligned_uint64_t;
77 typedef uint32_t unaligned_uint32_t;
78 typedef uint16_t unaligned_uint16_t;
84 #define __rte_packed __attribute__((__packed__))
89 #define __rte_may_alias __attribute__((__may_alias__))
92 #define __rte_deprecated __attribute__((__deprecated__))
93 #define __rte_deprecated_msg(msg) __attribute__((__deprecated__(msg)))
98 #if defined(RTE_CC_GCC) || defined(RTE_CC_CLANG)
99 #define RTE_PRAGMA(x) _Pragma(#x)
100 #define RTE_PRAGMA_WARNING(w) RTE_PRAGMA(GCC warning #w)
101 #define RTE_DEPRECATED(x) RTE_PRAGMA_WARNING(#x is deprecated)
103 #define RTE_DEPRECATED(x)
109 #define __rte_weak __attribute__((__weak__))
114 #define __rte_used __attribute__((used))
121 #define __rte_unused __attribute__((__unused__))
126 #if !defined(__STDC_VERSION__) || __STDC_VERSION__ < 199901L
127 #define __rte_restrict __restrict
129 #define __rte_restrict restrict
136 #define RTE_SET_USED(x) (void)(x)
146 #define __rte_format_printf(format_index, first_arg) \
147 __attribute__((format(gnu_printf, format_index, first_arg)))
149 #define __rte_format_printf(format_index, first_arg) \
150 __attribute__((format(printf, format_index, first_arg)))
158 #if defined(RTE_CC_GCC) || defined(RTE_CC_CLANG)
159 #define __rte_alloc_size(...) \
160 __attribute__((alloc_size(__VA_ARGS__)))
162 #define __rte_alloc_size(...)
165 #define RTE_PRIORITY_LOG 101
166 #define RTE_PRIORITY_BUS 110
167 #define RTE_PRIORITY_CLASS 120
168 #define RTE_PRIORITY_LAST 65535
170 #define RTE_PRIO(prio) \
171 RTE_PRIORITY_ ## prio
182 #ifndef RTE_INIT_PRIO
183 #define RTE_INIT_PRIO(func, prio) \
184 static void __attribute__((constructor(RTE_PRIO(prio)), used)) func(void)
195 #define RTE_INIT(func) \
196 RTE_INIT_PRIO(func, LAST)
207 #ifndef RTE_FINI_PRIO
208 #define RTE_FINI_PRIO(func, prio) \
209 static void __attribute__((destructor(RTE_PRIO(prio)), used)) func(void)
220 #define RTE_FINI(func) \
221 RTE_FINI_PRIO(func, LAST)
226 #define __rte_noreturn __attribute__((noreturn))
231 #define __rte_always_inline inline __attribute__((always_inline))
236 #define __rte_noinline __attribute__((noinline))
241 #define __rte_hot __attribute__((hot))
246 #define __rte_cold __attribute__((cold))
253 #define RTE_PTR_ADD(ptr, x) ((void*)((uintptr_t)(ptr) + (x)))
258 #define RTE_PTR_SUB(ptr, x) ((void *)((uintptr_t)(ptr) - (x)))
265 #define RTE_PTR_DIFF(ptr1, ptr2) ((uintptr_t)(ptr1) - (uintptr_t)(ptr2))
270 #define RTE_CAST_FIELD(var, field, type) \
271 (*(type *)((uintptr_t)(var) + offsetof(typeof(*(var)), field)))
282 #define RTE_PTR_ALIGN_FLOOR(ptr, align) \
283 ((typeof(ptr))RTE_ALIGN_FLOOR((uintptr_t)(ptr), align))
291 #define RTE_ALIGN_FLOOR(val, align) \
292 (typeof(val))((val) & (~((typeof(val))((align) - 1))))
300 #define RTE_PTR_ALIGN_CEIL(ptr, align) \
301 RTE_PTR_ALIGN_FLOOR((typeof(ptr))RTE_PTR_ADD(ptr, (align) - 1), align)
309 #define RTE_ALIGN_CEIL(val, align) \
310 RTE_ALIGN_FLOOR(((val) + ((typeof(val)) (align) - 1)), align)
319 #define RTE_PTR_ALIGN(ptr, align) RTE_PTR_ALIGN_CEIL(ptr, align)
328 #define RTE_ALIGN(val, align) RTE_ALIGN_CEIL(val, align)
335 #define RTE_ALIGN_MUL_CEIL(v, mul) \
336 ((((v) + (typeof(v))(mul) - 1) / ((typeof(v))(mul))) * (typeof(v))(mul))
343 #define RTE_ALIGN_MUL_FLOOR(v, mul) \
344 (((v) / ((typeof(v))(mul))) * (typeof(v))(mul))
351 #define RTE_ALIGN_MUL_NEAR(v, mul) \
353 typeof(v) ceil = RTE_ALIGN_MUL_CEIL(v, mul); \
354 typeof(v) floor = RTE_ALIGN_MUL_FLOOR(v, mul); \
355 (ceil - (v)) > ((v) - floor) ? floor : ceil; \
380 #define RTE_BUILD_BUG_ON(condition) ((void)sizeof(char[1 - 2*!!(condition)]))
385 #define RTE_CACHE_LINE_MASK (RTE_CACHE_LINE_SIZE-1)
388 #define RTE_CACHE_LINE_ROUNDUP(size) \
389 (RTE_CACHE_LINE_SIZE * ((size + RTE_CACHE_LINE_SIZE - 1) / \
390 RTE_CACHE_LINE_SIZE))
393 #if RTE_CACHE_LINE_SIZE == 64
394 #define RTE_CACHE_LINE_SIZE_LOG2 6
395 #elif RTE_CACHE_LINE_SIZE == 128
396 #define RTE_CACHE_LINE_SIZE_LOG2 7
398 #error "Unsupported cache line size"
402 #define RTE_CACHE_LINE_MIN_SIZE 64
405 #define __rte_cache_aligned __rte_aligned(RTE_CACHE_LINE_SIZE)
408 #define __rte_cache_min_aligned __rte_aligned(RTE_CACHE_LINE_MIN_SIZE)
414 #define RTE_BAD_PHYS_ADDR ((phys_addr_t)-1)
424 #define RTE_BAD_IOVA ((rte_iova_t)-1)
449 static inline uint32_t
471 static inline uint64_t
489 #define RTE_IS_POWER_OF_2(n) ((n) && !(((n) - 1) & (n)))
500 return n && !(n & (n - 1));
512 static inline uint32_t
530 static inline uint32_t
547 static inline uint64_t
565 static inline uint64_t
578 #define RTE_MIN(a, b) \
580 typeof (a) _a = (a); \
581 typeof (b) _b = (b); \
588 #define RTE_MAX(a, b) \
590 typeof (a) _a = (a); \
591 typeof (b) _b = (b); \
608 static inline uint32_t
611 return (uint32_t)__builtin_ctz(v);
649 static inline uint32_t
673 return (x == 0) ? 0 : 32 - __builtin_clz(x);
690 return (uint32_t)__builtin_ctzll(v);
732 return (x == 0) ? 0 : 64 - __builtin_clzll(x);
746 static inline uint32_t
758 #define offsetof(TYPE, MEMBER) __builtin_offsetof (TYPE, MEMBER)
776 #define container_of(ptr, type, member) __extension__ ({ \
777 const typeof(((type *)0)->member) *_ptr = (ptr); \
778 __rte_unused type *_target_ptr = \
780 (type *)(((uintptr_t)_ptr) - offsetof(type, member)); \
794 #define RTE_SIZEOF_FIELD(type, field) (sizeof(((type *)0)->field))
796 #define _RTE_STR(x) #x
798 #define RTE_STR(x) _RTE_STR(x)
805 #define RTE_FMT(fmt, ...) fmt "%.0s", __VA_ARGS__ ""
806 #define RTE_FMT_HEAD(fmt, ...) fmt
807 #define RTE_FMT_TAIL(fmt, ...) __VA_ARGS__
810 #define RTE_LEN2MASK(ln, tp) \
811 ((tp)((uint64_t)-1 >> (sizeof(uint64_t) * CHAR_BIT - (ln))))
814 #define RTE_DIM(a) (sizeof (a) / sizeof ((a)[0]))
830 static inline uint64_t
834 unsigned long long size;
836 while (isspace((
int)*str))
842 size = strtoull(str, &endptr, 0);
850 case 'G':
case 'g': size *= 1024;
851 case 'M':
case 'm': size *= 1024;
852 case 'K':
case 'k': size *= 1024;
static int rte_is_aligned(void *ptr, unsigned align)
__extension__ typedef uint64_t RTE_MARKER64[0]
static uint32_t rte_log2_u32(uint32_t v)
static int rte_fls_u32(uint32_t x)
__extension__ typedef uint8_t RTE_MARKER8[0]
static int rte_bsf64(uint64_t v)
__extension__ typedef uint32_t RTE_MARKER32[0]
__extension__ typedef uint16_t RTE_MARKER16[0]
#define __rte_format_printf(format_index, first_arg)
static uint32_t rte_align32pow2(uint32_t x)
static uint32_t rte_align32prevpow2(uint32_t x)
static int rte_fls_u64(uint64_t x)
static uint64_t rte_align64pow2(uint64_t v)
static uint32_t rte_bsf32(uint32_t v)
static int rte_bsf64_safe(uint64_t v, uint32_t *pos)
static uint64_t rte_align64prevpow2(uint64_t v)
__rte_noreturn void rte_exit(int exit_code, const char *format,...) __rte_format_printf(2
#define RTE_PTR_ALIGN(ptr, align)
static int rte_is_power_of_2(uint32_t n)
static uint64_t rte_combine64ms1b(uint64_t v)
static uint32_t rte_combine32ms1b(uint32_t x)
static int rte_bsf32_safe(uint64_t v, uint32_t *pos)
static uint32_t rte_log2_u64(uint64_t v)
static uint64_t rte_str_to_size(const char *str)
__extension__ typedef void * RTE_MARKER[0]