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ntp: convert HW timestamp even if PHC reading fails

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Reading of PHC can fail occasionally on some hardware. If that happens,
don't abort the conversion of the timestamp that triggered the reading.
This commit is contained in:
Miroslav Lichvar 2022-06-08 15:30:05 +02:00
parent d530055917
commit c23c0b8484
1 changed files with 8 additions and 9 deletions
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7
ntp_io_linux.c
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@ -569,17 +569,16 @@ process_hw_timestamp(struct Interface *iface, struct timespec *hw_ts,
double rx_correction, ts_delay, phc_err, local_err;
if (HCL_NeedsNewSample(iface->clock, &local_ts->ts)) {
if (!SYS_Linux_GetPHCSample(iface->phc_fd, iface->phc_nocrossts, iface->precision,
if (SYS_Linux_GetPHCSample(iface->phc_fd, iface->phc_nocrossts, iface->precision,
&iface->phc_mode, &sample_phc_ts, &sample_sys_ts,
&phc_err))
return;
&phc_err)) {
LCL_CookTime(&sample_sys_ts, &sample_local_ts, &local_err);
HCL_AccumulateSample(iface->clock, &sample_phc_ts, &sample_local_ts,
phc_err + local_err);
update_interface_speed(iface);
}
}
/* We need to transpose RX timestamps as hardware timestamps are normally
preamble timestamps and RX timestamps in NTP are supposed to be trailer