netdev - [RFC PATCH 1/7] net: define receive timestamp filter for NTP

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Message-Id: <20170412141737.5881-2-mlichvar@redhat.com>
Date:   Wed, 12 Apr 2017 16:17:31 +0200
From:   Miroslav Lichvar <mlichvar@...hat.com>
To:     netdev@...r.kernel.org
Cc:     Richard Cochran <richardcochran@...il.com>,
        Willem de Bruijn <willemb@...gle.com>,
        Soheil Hassas Yeganeh <soheil@...gle.com>,
        "Keller, Jacob E" <jacob.e.keller@...el.com>,
        Denny Page <dennypage@...com>, Jiri Benc <jbenc@...hat.com>
Subject: [RFC PATCH 1/7] net: define receive timestamp filter for NTP

Add HWTSTAMP_FILTER_NTP_ALL to the hwtstamp_rx_filters enum for
timestamping of NTP packets. There is currently only one driver that
could support it directly, but it may change in the future.

CC: Richard Cochran <richardcochran@...il.com>
CC: Willem de Bruijn <willemb@...gle.com>
Signed-off-by: Miroslav Lichvar <mlichvar@...hat.com>
---
 include/uapi/linux/net_tstamp.h | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/include/uapi/linux/net_tstamp.h b/include/uapi/linux/net_tstamp.h
index 464dcca..0749fb1 100644
--- a/include/uapi/linux/net_tstamp.h
+++ b/include/uapi/linux/net_tstamp.h
@@ -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 */
-- 
2.9.3