From 7938550830f38a0bff0bc81ad3f80cfd23f78a03 Mon Sep 17 00:00:00 2001 From: Jacob Keller Date: Mon, 8 Apr 2019 16:51:58 -0700 Subject: [PATCH] ixgbe: reduce PTP Tx timestamp timeout to 1 second Previously we waited for a whole 15 seconds before we cleared the Tx timestamp state. This is astronomically long compared to the worst case timings expected by our devices. In addition, this is longer than the wait in ptp4l when it detects a fault (caused by missing Tx timestamps). Thus, reduce the timer to only 1 second, which is well after the maximum expected delay. This should reduce user frustration when a timestamp does get dropped for some reason. Signed-off-by: Jacob Keller Tested-by: Andrew Bowers Signed-off-by: Jeff Kirsher --- drivers/net/ethernet/intel/ixgbe/ixgbe_ptp.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_ptp.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_ptp.c index d81a50dc95352..dbe84a4d2f7f9 100644 --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_ptp.c +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_ptp.c @@ -72,7 +72,7 @@ #define IXGBE_INCPER_SHIFT_82599 24 #define IXGBE_OVERFLOW_PERIOD (HZ * 30) -#define IXGBE_PTP_TX_TIMEOUT (HZ * 15) +#define IXGBE_PTP_TX_TIMEOUT (HZ) /* half of a one second clock period, for use with PPS signal. We have to use * this instead of something pre-defined like IXGBE_PTP_PPS_HALF_SECOND, in -- 2.39.5