From 8fd70994028025b64888ee0e6ee4762cac72f11a 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 d81a50dc9535..dbe84a4d2f7f 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 -- 2.45.2