mlx5dv_ts_to_ns (3) Linux Manual Page

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

Synopsis

#include <infiniband/mlx5dv.h>

uint64_t mlx5dv_ts_to_ns(struct mlx5dv_clock_info *clock_info,

 uint64_t device_timestamp);

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.

Return Value

Timestamp in nanoseconds

See Also

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

Authors

Feras Daoud <ferasda [at] mellanox.com>