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Commit df31b74c authored by Andrew Lunn's avatar Andrew Lunn Committed by David S. Miller
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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: default avatarAndrew Lunn <andrew@lunn.ch>
Acked-by: default avatarRichard Cochran <richardcochran@gmail.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 2dbed245

drivers/net/dsa/mv88e6xxx/hwtstamp.c

+1 −1
Original line number Diff line number Diff line
@@ -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)