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ntp: add PTP rxfilter

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Setting rxfilter to ptp enables timestamping of PTPv2 packets (UDP or
all transports). It will be needed for NTP-over-PTP support.
This commit is contained in:
Miroslav Lichvar
2021-08-18 10:44:48 +02:00
parent b2c2132e4b
commit 2f1d5d9255
4 changed files with 13 additions and 0 deletions
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2
conf.c
View File

@@ -1556,6 +1556,8 @@ parse_hwtimestamp(char *line)
iface->rxfilter = CNF_HWTS_RXFILTER_NONE; iface->rxfilter = CNF_HWTS_RXFILTER_NONE;
else if (!strcasecmp(filter, "ntp")) else if (!strcasecmp(filter, "ntp"))
iface->rxfilter = CNF_HWTS_RXFILTER_NTP; iface->rxfilter = CNF_HWTS_RXFILTER_NTP;
else if (!strcasecmp(filter, "ptp"))
iface->rxfilter = CNF_HWTS_RXFILTER_PTP;
else if (!strcasecmp(filter, "all")) else if (!strcasecmp(filter, "all"))
iface->rxfilter = CNF_HWTS_RXFILTER_ALL; iface->rxfilter = CNF_HWTS_RXFILTER_ALL;
else else

1
conf.h
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@@ -134,6 +134,7 @@ typedef enum {
CNF_HWTS_RXFILTER_ANY, CNF_HWTS_RXFILTER_ANY,
CNF_HWTS_RXFILTER_NONE, CNF_HWTS_RXFILTER_NONE,
CNF_HWTS_RXFILTER_NTP, CNF_HWTS_RXFILTER_NTP,
CNF_HWTS_RXFILTER_PTP,
CNF_HWTS_RXFILTER_ALL, CNF_HWTS_RXFILTER_ALL,
} CNF_HwTs_RxFilter; } CNF_HwTs_RxFilter;

2
doc/chrony.conf.adoc
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@@ -2416,6 +2416,8 @@ _all_::::
Enables timestamping of all received packets. Enables timestamping of all received packets.
_ntp_:::: _ntp_::::
Enables timestamping of received NTP packets. Enables timestamping of received NTP packets.
_ptp_::::
Enables timestamping of received PTP packets.
_none_:::: _none_::::
Disables timestamping of received packets. Disables timestamping of received packets.
{blank}::: {blank}:::

8
ntp_io_linux.c
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@@ -189,6 +189,14 @@ add_interface(CNF_HwTsInterface *conf_iface)
rx_filter = HWTSTAMP_FILTER_NTP_ALL; rx_filter = HWTSTAMP_FILTER_NTP_ALL;
break; break;
#endif #endif
case CNF_HWTS_RXFILTER_PTP:
if (ts_info.rx_filters & (1 << HWTSTAMP_FILTER_PTP_V2_L4_EVENT))
rx_filter = HWTSTAMP_FILTER_PTP_V2_L4_EVENT;
else if (ts_info.rx_filters & (1 << HWTSTAMP_FILTER_PTP_V2_EVENT))
rx_filter = HWTSTAMP_FILTER_PTP_V2_EVENT;
else
rx_filter = HWTSTAMP_FILTER_NONE;
break;
default: default:
rx_filter = HWTSTAMP_FILTER_ALL; rx_filter = HWTSTAMP_FILTER_ALL;
break; break;