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   mlx5dv_ts_to_ns    ( 3 )

преобразуйте временную метку устройства из единиц тактовой частоты ядра HCA в соответствующие единицы наносекунд (Convert device timestamp from HCA core clock units to the corresponding nanosecond counts)

Имя (Name)

mlx5dv_ts_to_ns - Convert device timestamp from HCA core clock
       units to the corresponding nanosecond counts

Синопсис (Synopsis)

#include <infiniband/mlx5dv.h>

uint64_t mlx5dv_ts_to_ns(struct mlx5dv_clock_info *clock_info, uint64_t device_timestamp);


Описание (Description)

mlx5dv_ts_to_ns(3) Converts a host byte order device_timestamp
       from HCA core clock units into the corresponding nanosecond
       wallclock time.

struct mlx5dv_clock_info can be retrieved using mlx5dv_get_clock_info(3).

The greater the difference between the device reporting a timestamp and the last mlx5dv_clock_info update, the greater the inaccuracy of the clock time conversion.


Возвращаемое значение (Return value)

Timestamp in nanoseconds

Смотри также (See also)

mlx5dv(7), mlx5dv_get_clock_info(3), mlx5dv_query_device(3)