From: Andrew Lunn <andrew@lunn.ch>
To: David Miller <davem@davemloft.net>
Cc: richardcochran@gmail.com,
Vivien Didelot <vivien.didelot@savoirfairelinux.com>,
netdev <netdev@vger.kernel.org>, Andrew Lunn <andrew@lunn.ch>
Subject: [PATCH v2 net-next 8/8] net: dsa: mv88e6xxx: Longer timeout for PTP TX timestamp
Date: Wed, 18 Jul 2018 22:38:27 +0200 [thread overview]
Message-ID: <1531946307-22752-9-git-send-email-andrew@lunn.ch> (raw)
In-Reply-To: <1531946307-22752-1-git-send-email-andrew@lunn.ch>
For slow processors using bit-banging MDIO, 20ms can be too short a
timeout when waiting for the transmit timestamp to become
available. Double it to 40ms.
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Acked-by: Richard Cochran <richardcochran@gmail.com>
---
drivers/net/dsa/mv88e6xxx/hwtstamp.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/dsa/mv88e6xxx/hwtstamp.c b/drivers/net/dsa/mv88e6xxx/hwtstamp.c
index ac71910c63c0..a17c16a2ab78 100644
--- a/drivers/net/dsa/mv88e6xxx/hwtstamp.c
+++ b/drivers/net/dsa/mv88e6xxx/hwtstamp.c
@@ -65,7 +65,7 @@ static int mv88e6xxx_ptp_read(struct mv88e6xxx_chip *chip, int addr,
* within 1ms. Software may enounter delays due to MDIO contention, so
* the timeout is set accordingly.
*/
-#define TX_TSTAMP_TIMEOUT msecs_to_jiffies(20)
+#define TX_TSTAMP_TIMEOUT msecs_to_jiffies(40)
int mv88e6xxx_get_ts_info(struct dsa_switch *ds, int port,
struct ethtool_ts_info *info)
--
2.18.0
next prev parent reply other threads:[~2018-07-18 21:20 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-07-18 20:38 [PATCH v2 net-next 0/8] PTP support for mv88e6165 family Andrew Lunn
2018-07-18 20:38 ` [PATCH v2 net-next 1/8] net: dsa: mv88e6xxx: Abstract PTP operations Andrew Lunn
2018-07-18 20:38 ` [PATCH v2 net-next 2/8] net: dsa: mv88e6xxx: Add MV88E6165 AVB register access Andrew Lunn
2018-07-18 20:38 ` [PATCH v2 net-next 3/8] net: dsa: mv88e6xxx: Add mv88e6165 PTP support Andrew Lunn
2018-07-18 20:38 ` [PATCH v2 net-next 4/8] net: dsa: mv88e6xxx: Abstract HW timestamp setup Andrew Lunn
2018-07-18 20:38 ` [PATCH v2 net-next 5/8] net: dsa: mv88e6xxx: Abstract supported PTP filters Andrew Lunn
2018-07-18 20:38 ` [PATCH v2 net-next 6/8] net: dsa: mv88e6xxx: Add hwtimestamp support for the 6165 Andrew Lunn
2018-07-18 20:38 ` [PATCH v2 net-next 7/8] net: dsa: mv88e6xxx: Set PTP Ethertype Andrew Lunn
2018-07-18 20:38 ` Andrew Lunn [this message]
2018-07-18 22:07 ` [PATCH v2 net-next 0/8] PTP support for mv88e6165 family David Miller
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