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net: define receive timestamp filter for NTP

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Add HWTSTAMP_FILTER_NTP_ALL to the hwtstamp_rx_filters enum for
timestamping of NTP packets. There is currently only one driver
(phyter) that could support it directly.

CC: Richard Cochran <richardcochran@gmail.com>
CC: Willem de Bruijn <willemb@google.com>
Signed-off-by: Miroslav Lichvar <mlichvar@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Miroslav Lichvar 2017-05-19 17:52:35 +02:00 committed by David S. Miller
parent 2061ec3f13
commit b8210a9e4b
2 changed files with 5 additions and 0 deletions
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3
include/uapi/linux/net_tstamp.h
View file

@ -125,6 +125,9 @@ enum hwtstamp_rx_filters {
HWTSTAMP_FILTER_PTP_V2_SYNC,
/* PTP v2/802.AS1, any layer, Delay_req packet */
HWTSTAMP_FILTER_PTP_V2_DELAY_REQ,
/* NTP, UDP, all versions and packet modes */
HWTSTAMP_FILTER_NTP_ALL,
};
#endif /* _NET_TIMESTAMPING_H */

2
net/core/dev_ioctl.c
View file

@ -227,6 +227,8 @@ static int net_hwtstamp_validate(struct ifreq *ifr)
case HWTSTAMP_FILTER_PTP_V2_DELAY_REQ:
rx_filter_valid = 1;
break;
case HWTSTAMP_FILTER_NTP_ALL:
break;
}
if (!tx_type_valid || !rx_filter_valid)