NAME

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>