Thread (2 messages) flat view 2 messages, 2 authors, 2021-08-14
STALE1833d LANDED: 1 (0M)

1 review trailer; landed in mainline as 5f7735196390 on 2021-08-14.

[PATCH net 1/1] ice: Fix perout start time rounding

From: Tony Nguyen <anthony.l.nguyen@intel.com>
Date: 2021-08-13 16:46:58
Subsystem: intel ethernet drivers, networking drivers, the rest · Maintainers: Tony Nguyen, Przemek Kitszel, Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds

From: Maciej Machnikowski <redacted>

Internal tests found out that the latest code doesn't bring up 1PPS out
as expected. As a result of incorrect define used to round the time up
the time was round down to the past second boundary.

Fix define used for rounding to properly round up to the next Top of
second in ice_ptp_cfg_clkout to fix it.

Fixes: 172db5f91d5f ("ice: add support for auxiliary input/output pins")
Signed-off-by: Maciej Machnikowski <redacted>
Tested-by: Sunitha Mekala <redacted>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
---
 drivers/net/ethernet/intel/ice/ice_ptp.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/intel/ice/ice_ptp.c b/drivers/net/ethernet/intel/ice/ice_ptp.c
index 5d5207b56ca9..9e3ddb9b8b51 100644
--- a/drivers/net/ethernet/intel/ice/ice_ptp.c
+++ b/drivers/net/ethernet/intel/ice/ice_ptp.c
@@ -656,7 +656,7 @@ static int ice_ptp_cfg_clkout(struct ice_pf *pf, unsigned int chan,
 	 * maintaining phase
 	 */
 	if (start_time < current_time)
-		start_time = div64_u64(current_time + NSEC_PER_MSEC - 1,
+		start_time = div64_u64(current_time + NSEC_PER_SEC - 1,
 				       NSEC_PER_SEC) * NSEC_PER_SEC + phase;
 
 	start_time -= E810_OUT_PROP_DELAY_NS;
-- 
2.26.2
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