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ntp: allow TX-only HW timestamping by default

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If no rxfilter is specified in the hwtimestamp directive and the NIC
doesn't support the all or ntp filter, enable TX-only HW timestamping
with the none filter.
This commit is contained in:
Miroslav Lichvar
2017-08-23 11:33:37 +02:00
parent 3e93068c43
commit aee42fada8
4 changed files with 42 additions and 25 deletions
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23
ntp_io_linux.c
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@@ -154,17 +154,25 @@ add_interface(CNF_HwTsInterface *conf_iface)
ts_config.tx_type = HWTSTAMP_TX_ON;
switch (conf_iface->rxfilter) {
case CNF_HWTS_RXFILTER_ANY:
#ifdef HAVE_LINUX_TIMESTAMPING_RXFILTER_NTP
if (ts_info.rx_filters & (1 << HWTSTAMP_FILTER_NTP_ALL))
ts_config.rx_filter = HWTSTAMP_FILTER_NTP_ALL;
else
#endif
if (ts_info.rx_filters & (1 << HWTSTAMP_FILTER_ALL))
ts_config.rx_filter = HWTSTAMP_FILTER_ALL;
else
ts_config.rx_filter = HWTSTAMP_FILTER_NONE;
break;
case CNF_HWTS_RXFILTER_NONE:
ts_config.rx_filter = HWTSTAMP_FILTER_NONE;
break;
case CNF_HWTS_RXFILTER_NTP:
#ifdef HAVE_LINUX_TIMESTAMPING_RXFILTER_NTP
if (ts_info.rx_filters & (1 << HWTSTAMP_FILTER_NTP_ALL)) {
ts_config.rx_filter = HWTSTAMP_FILTER_NTP_ALL;
break;
}
case CNF_HWTS_RXFILTER_NTP:
ts_config.rx_filter = HWTSTAMP_FILTER_NTP_ALL;
break;
#endif
/* Fall through */
default:
ts_config.rx_filter = HWTSTAMP_FILTER_ALL;
break;
@@ -203,7 +211,8 @@ add_interface(CNF_HwTsInterface *conf_iface)
iface->clock = HCL_CreateInstance(UTI_Log2ToDouble(MAX(conf_iface->minpoll, MIN_PHC_POLL)));
LOG(LOGS_INFO, "Enabled HW timestamping on %s", iface->name);
LOG(LOGS_INFO, "Enabled HW timestamping %son %s",
ts_config.rx_filter == HWTSTAMP_FILTER_NONE ? "(TX only) " : "", iface->name);
return 1;
}