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35 #ifndef _RTE_CYCLES_H_
36 #define _RTE_CYCLES_H_
41 * Simple Time Reference Functions (Cycles and HPET).
51 * Read the TSC register.
54 * The TSC for this lcore.
56 static inline uint64_t
67 asm volatile("rdtsc" :
74 * Return the number of HPET cycles since boot
76 * This counter is global for all execution units. The number of
77 * cycles in one second can be retrived using rte_get_hpet_hz().
80 * the number of cycles
83 rte_get_hpet_cycles(void);
86 * Get the number of cycles in one second.
89 * The number of cycles in one second.
92 rte_get_hpet_hz(void);
95 * Wait at least us microseconds.
98 * The number of microseconds to wait.
101 rte_delay_us(unsigned us);
104 * Wait at least ms milliseconds.
107 * The number of milliseconds to wait.
110 rte_delay_ms(unsigned ms)
112 rte_delay_us(ms * 1000);
119 #endif /* _RTE_CYCLES_H_ */