linux-kernel - [PATCH 3.16 010/136] net: stmmac: Correctly take timestamp for PTPv2

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Date:   Tue, 17 Dec 2019 00:45:44 +0000
From:   Ben Hutchings <ben@...adent.org.uk>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
CC:     akpm@...ux-foundation.org, Denis Kirjanov <kda@...ux-powerpc.org>,
        "Jose Abreu" <Jose.Abreu@...opsys.com>,
        "David S. Miller" <davem@...emloft.net>
Subject: [PATCH 3.16 010/136] net: stmmac: Correctly take timestamp for PTPv2

3.16.80-rc1 review patch.  If anyone has any objections, please let me know.

------------------

From: Jose Abreu <Jose.Abreu@...opsys.com>

commit 14f347334bf232074616e29e29103dd0c7c54dec upstream.

The case for PTPV2_EVENT requires event packets to be captured so add
this setting to the list of enabled captures.

Fixes: 891434b18ec0 ("stmmac: add IEEE PTPv1 and PTPv2 support.")
Signed-off-by: Jose Abreu <Jose.Abreu@...opsys.com>
Signed-off-by: David S. Miller <davem@...emloft.net>
[bwh: Backported to 3.16: adjust context]
Signed-off-by: Ben Hutchings <ben@...adent.org.uk>
---
 drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 1 +
 1 file changed, 1 insertion(+)

--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
@@ -539,6 +539,7 @@ static int stmmac_hwtstamp_ioctl(struct
 			ptp_v2 = PTP_TCR_TSVER2ENA;
 			/* take time stamp for all event messages */
 			snap_type_sel = PTP_TCR_SNAPTYPSEL_1;
+			ts_event_en = PTP_TCR_TSEVNTENA;
 
 			ptp_over_ipv4_udp = PTP_TCR_TSIPV4ENA;
 			ptp_over_ipv6_udp = PTP_TCR_TSIPV6ENA;