5 #ifndef _RTE_TRACE_POINT_H_
6 #define _RTE_TRACE_POINT_H_
24 #include <rte_compat.h>
27 #include <rte_stdatomic.h>
37 typedef RTE_ATOMIC(uint64_t) rte_trace_point_t;
39 #ifndef _RTE_TRACE_POINT_REGISTER_H_
46 #define RTE_TRACE_POINT_ARGS
49 #define __RTE_TRACE_POINT(_mode, _tp, _args, ...) \
50 extern rte_trace_point_t __##_tp; \
51 static __rte_always_inline void \
54 __rte_trace_point_emit_header_##_mode(&__##_tp); \
84 #define RTE_TRACE_POINT(tp, args, ...) \
85 __RTE_TRACE_POINT(generic, tp, args, __VA_ARGS__)
105 #define RTE_TRACE_POINT_FP(tp, args, ...) \
106 __RTE_TRACE_POINT(fp, tp, args, __VA_ARGS__)
121 #define RTE_TRACE_POINT_REGISTER(trace, name)
124 #define rte_trace_point_emit_u64(val)
126 #define rte_trace_point_emit_i64(val)
128 #define rte_trace_point_emit_u32(val)
130 #define rte_trace_point_emit_i32(val)
132 #define rte_trace_point_emit_u16(val)
134 #define rte_trace_point_emit_i16(val)
136 #define rte_trace_point_emit_u8(val)
138 #define rte_trace_point_emit_i8(val)
140 #define rte_trace_point_emit_int(val)
142 #define rte_trace_point_emit_long(val)
144 #define rte_trace_point_emit_size_t(val)
146 #define rte_trace_point_emit_float(val)
148 #define rte_trace_point_emit_double(val)
150 #define rte_trace_point_emit_ptr(val)
152 #define rte_trace_point_emit_string(val)
162 #define rte_trace_point_emit_blob(val, len)
164 #define rte_trace_point_emit_time(val)
165 #define rte_trace_point_emit_nsec(val)
170 #define __RTE_TRACE_EMIT_STRING_LEN_MAX 32
172 #define __RTE_TRACE_EVENT_HEADER_SZ sizeof(uint64_t)
175 #define RTE_TRACE_BLOB_LEN_MAX 64
233 __rte_trace_point_fp_is_enabled(
void)
235 #ifdef RTE_ENABLE_TRACE_FP
248 void __rte_trace_mem_per_thread_alloc(
void);
266 void __rte_trace_point_emit_field(
size_t sz,
const char *field,
286 int __rte_trace_point_register(rte_trace_point_t *trace,
const char *name,
287 void (*register_fn)(
void));
291 #ifndef _RTE_TRACE_POINT_REGISTER_H_
292 #ifdef ALLOW_EXPERIMENTAL_API
294 #define __RTE_TRACE_EVENT_HEADER_ID_SHIFT (48)
296 #define __RTE_TRACE_FIELD_SIZE_SHIFT 0
297 #define __RTE_TRACE_FIELD_SIZE_MASK (0xffffULL << __RTE_TRACE_FIELD_SIZE_SHIFT)
298 #define __RTE_TRACE_FIELD_ID_SHIFT (16)
299 #define __RTE_TRACE_FIELD_ID_MASK (0xffffULL << __RTE_TRACE_FIELD_ID_SHIFT)
300 #define __RTE_TRACE_FIELD_ENABLE_MASK (1ULL << 63)
301 #define __RTE_TRACE_FIELD_ENABLE_DISCARD (1ULL << 62)
303 struct __rte_trace_stream_header {
307 char thread_name[__RTE_TRACE_EMIT_STRING_LEN_MAX];
310 struct __rte_trace_header {
313 struct __rte_trace_stream_header stream_header;
320 __rte_trace_mem_get(uint64_t in)
322 struct __rte_trace_header *trace =
324 const uint16_t sz = in & __RTE_TRACE_FIELD_SIZE_MASK;
328 __rte_trace_mem_per_thread_alloc();
329 trace = (
struct __rte_trace_header *)(
RTE_PER_LCORE(trace_mem));
334 uint32_t offset = trace->offset;
335 if (
unlikely((offset + sz) >= trace->len)) {
337 if (
unlikely(in & __RTE_TRACE_FIELD_ENABLE_DISCARD))
346 trace->offset = offset;
352 __rte_trace_point_emit_ev_header(
void *mem, uint64_t in)
358 ~(0xffffULL << __RTE_TRACE_EVENT_HEADER_ID_SHIFT);
359 val |= ((in & __RTE_TRACE_FIELD_ID_MASK) <<
360 (__RTE_TRACE_EVENT_HEADER_ID_SHIFT -
361 __RTE_TRACE_FIELD_ID_SHIFT));
363 *(uint64_t *)mem = val;
364 return RTE_PTR_ADD(mem, __RTE_TRACE_EVENT_HEADER_SZ);
367 #define __rte_trace_point_emit_header_generic(t) \
370 if (!rte_trace_feature_is_enabled()) \
372 const uint64_t val = rte_atomic_load_explicit(t, rte_memory_order_acquire); \
373 if (likely(!(val & __RTE_TRACE_FIELD_ENABLE_MASK))) \
375 mem = __rte_trace_mem_get(val); \
376 if (unlikely(mem == NULL)) \
378 mem = __rte_trace_point_emit_ev_header(mem, val); \
381 #define __rte_trace_point_emit_header_fp(t) \
382 if (!__rte_trace_point_fp_is_enabled()) \
384 __rte_trace_point_emit_header_generic(t)
386 #define __rte_trace_point_emit(name, in, type) \
388 RTE_BUILD_BUG_ON(sizeof(type) != sizeof(typeof(*in))); \
389 memcpy(mem, in, sizeof(*in)); \
390 mem = RTE_PTR_ADD(mem, sizeof(*in)); \
393 #define rte_trace_point_emit_string(in) \
395 if (unlikely(in == NULL)) \
397 rte_strscpy((char *)mem, in, __RTE_TRACE_EMIT_STRING_LEN_MAX); \
398 mem = RTE_PTR_ADD(mem, __RTE_TRACE_EMIT_STRING_LEN_MAX); \
401 #define rte_trace_point_emit_blob(in, len) \
403 uint8_t size = len; \
404 if (unlikely(in == NULL)) \
406 if (size > RTE_TRACE_BLOB_LEN_MAX) \
407 size = RTE_TRACE_BLOB_LEN_MAX; \
408 __rte_trace_point_emit("size", &size, uint8_t); \
409 memcpy(mem, in, size); \
410 memset(RTE_PTR_ADD(mem, size), 0, RTE_TRACE_BLOB_LEN_MAX - size); \
411 mem = RTE_PTR_ADD(mem, RTE_TRACE_BLOB_LEN_MAX); \
416 #define __rte_trace_point_emit_header_generic(t) RTE_SET_USED(t)
417 #define __rte_trace_point_emit_header_fp(t) RTE_SET_USED(t)
418 #define __rte_trace_point_emit(name, in, type) RTE_SET_USED(in)
419 #define rte_trace_point_emit_string(in) RTE_SET_USED(in)
420 #define rte_trace_point_emit_blob(in, len) \
430 #define rte_trace_point_emit_u64(in) __rte_trace_point_emit(RTE_STR(in), &in, uint64_t)
431 #define rte_trace_point_emit_i64(in) __rte_trace_point_emit(RTE_STR(in), &in, int64_t)
432 #define rte_trace_point_emit_u32(in) __rte_trace_point_emit(RTE_STR(in), &in, uint32_t)
433 #define rte_trace_point_emit_i32(in) __rte_trace_point_emit(RTE_STR(in), &in, int32_t)
434 #define rte_trace_point_emit_u16(in) __rte_trace_point_emit(RTE_STR(in), &in, uint16_t)
435 #define rte_trace_point_emit_i16(in) __rte_trace_point_emit(RTE_STR(in), &in, int16_t)
436 #define rte_trace_point_emit_u8(in) __rte_trace_point_emit(RTE_STR(in), &in, uint8_t)
437 #define rte_trace_point_emit_i8(in) __rte_trace_point_emit(RTE_STR(in), &in, int8_t)
438 #define rte_trace_point_emit_int(in) __rte_trace_point_emit(RTE_STR(in), &in, int32_t)
439 #define rte_trace_point_emit_long(in) __rte_trace_point_emit(RTE_STR(in), &in, long)
440 #define rte_trace_point_emit_size_t(in) __rte_trace_point_emit(RTE_STR(in), &in, size_t)
441 #define rte_trace_point_emit_float(in) __rte_trace_point_emit(RTE_STR(in), &in, float)
442 #define rte_trace_point_emit_double(in) __rte_trace_point_emit(RTE_STR(in), &in, double)
443 #define rte_trace_point_emit_ptr(in) __rte_trace_point_emit(RTE_STR(in), &in, uintptr_t)
445 #define rte_trace_point_emit_u64_ptr(in) __rte_trace_point_emit(RTE_STR(in)"_val", in, uint64_t)
446 #define rte_trace_point_emit_i64_ptr(in) __rte_trace_point_emit(RTE_STR(in)"_val", in, int64_t)
447 #define rte_trace_point_emit_u32_ptr(in) __rte_trace_point_emit(RTE_STR(in)"_val", in, uint32_t)
448 #define rte_trace_point_emit_i32_ptr(in) __rte_trace_point_emit(RTE_STR(in)"_val", in, int32_t)
449 #define rte_trace_point_emit_u16_ptr(in) __rte_trace_point_emit(RTE_STR(in)"_val", in, uint16_t)
450 #define rte_trace_point_emit_i16_ptr(in) __rte_trace_point_emit(RTE_STR(in)"_val", in, int16_t)
451 #define rte_trace_point_emit_u8_ptr(in) __rte_trace_point_emit(RTE_STR(in)"_val", in, uint8_t)
452 #define rte_trace_point_emit_i8_ptr(in) __rte_trace_point_emit(RTE_STR(in)"_val", in, int8_t)
453 #define rte_trace_point_emit_int_ptr(in) __rte_trace_point_emit(RTE_STR(in)"_val", in, int32_t)
454 #define rte_trace_point_emit_long_ptr(in) __rte_trace_point_emit(RTE_STR(in)"_val", in, long)
455 #define rte_trace_point_emit_size_t_ptr(in) __rte_trace_point_emit(RTE_STR(in)"_val", in, size_t)
456 #define rte_trace_point_emit_float_ptr(in) __rte_trace_point_emit(RTE_STR(in)"_val", in, float)
457 #define rte_trace_point_emit_double_ptr(in) __rte_trace_point_emit(RTE_STR(in)"_val", in, double)
459 #if defined(__USE_TIME_BITS64) && !defined(__x86_64__)
460 #define rte_trace_point_emit_time(in) __rte_trace_point_emit(RTE_STR(in), &in, __time64_t)
462 #define rte_trace_point_emit_time(in) __rte_trace_point_emit(RTE_STR(in), &in, time_t)
464 #if defined(__x86_64__) && defined(__ILP32__)
465 #define rte_trace_point_emit_nsec(in) __rte_trace_point_emit(RTE_STR(in), &in, int64_t)
467 #define rte_trace_point_emit_nsec(in) __rte_trace_point_emit(RTE_STR(in), &in, long)
#define RTE_DECLARE_PER_LCORE(type, name)
#define __rte_always_inline
#define RTE_ALIGN_CEIL(val, align)
__rte_experimental int rte_trace_point_disable(rte_trace_point_t *tp)
__rte_experimental rte_trace_point_t * rte_trace_point_lookup(const char *name)
#define RTE_PTR_ADD(ptr, x)
unsigned char rte_uuid_t[16]
static uint64_t rte_get_tsc_cycles(void)
__rte_experimental int rte_trace_point_enable(rte_trace_point_t *tp)
#define RTE_PER_LCORE(name)
__rte_experimental bool rte_trace_point_is_enabled(rte_trace_point_t *tp)