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authorAndrew Lunn <andrew@lunn.ch>2018-07-18 22:38:27 +0200
committerDavid S. Miller <davem@davemloft.net>2018-07-18 15:05:38 -0700
commitdf31b74ce132c20d309aaada8b2fb67c35da5fad (patch)
tree47be576ff3c35bdff226d916ee5f68ebba50957b
parent2dbed245b408f3e458345b974c862447a73c73c0 (diff)
net: dsa: mv88e6xxx: Longer timeout for PTP TX timestamp
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> Signed-off-by: David S. Miller <davem@davemloft.net>
-rw-r--r--drivers/net/dsa/mv88e6xxx/hwtstamp.c2
1 files changed, 1 insertions, 1 deletions
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)