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ntp: add support for new Linux timestamping options

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New timestamping options may be available in kernel 4.13. They can be
used to get the index of the interface which timestamped incoming packet
together with its length at layer 2, enable simultaneous SW and HW TX
timestamping, and enable a new RX filter for NTP packets.
This commit is contained in:
Miroslav Lichvar
2017-06-06 17:07:45 +02:00
parent b799cfd1c4
commit 934d4047f1
2 changed files with 74 additions and 11 deletions
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11
configure vendored
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@@ -660,6 +660,17 @@ if [ $feat_timestamping = "1" ] && [ $try_timestamping = "1" ] &&
then
add_def HAVE_LINUX_TIMESTAMPING
EXTRA_OBJECTS="$EXTRA_OBJECTS hwclock.o ntp_io_linux.o"
if test_code 'other timestamping options' \
'sys/types.h sys/socket.h linux/net_tstamp.h' '' '' '
struct scm_ts_pktinfo pktinfo;
pktinfo.if_index = pktinfo.pkt_length = 0;
return pktinfo.if_index + pktinfo.pkt_length + HWTSTAMP_FILTER_NTP_ALL +
SOF_TIMESTAMPING_OPT_PKTINFO + SOF_TIMESTAMPING_OPT_TX_SWHW;'; then
add_def HAVE_LINUX_TIMESTAMPING_RXFILTER_NTP 1
add_def HAVE_LINUX_TIMESTAMPING_OPT_PKTINFO 1
add_def HAVE_LINUX_TIMESTAMPING_OPT_TX_SWHW 1
fi
fi
timepps_h=""