.\" -*- nroff -*-
.\" Licensed under the OpenIB.org (MIT) - See COPYING.md
.\"
.TH MLX5DV_TS_TO_NS 3 2017-11-08 1.0.0
.SH "NAME"
mlx5dv_ts_to_ns \- Convert device timestamp from HCA core clock units to
the corresponding nanosecond counts
.SH "SYNOPSIS"
.nf
.B #include <infiniband/mlx5dv.h>
.sp
.BI "uint64_t mlx5dv_ts_to_ns(struct mlx5dv_clock_info *clock_info,
.BI "			      uint64_t device_timestamp);
.fi
.SH "DESCRIPTION"
.B mlx5dv_ts_to_ns(3)
Converts a host byte order
.I device_timestamp
from HCA core clock units into the corresponding nanosecond wallclock time.
.PP
\fBstruct mlx5dv_clock_info\fR can be retrieved using \fBmlx5dv_get_clock_info(3)\fR.
.PP
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.

.fi
.SH "RETURN VALUE"
Timestamp in nanoseconds
.SH "SEE ALSO"
.BR mlx5dv (7),
.BR mlx5dv_get_clock_info (3),
.BR mlx5dv_query_device (3)
.SH "AUTHORS"
.TP
Feras Daoud <ferasda@mellanox.com>