diff mbox series

[v2,67/70] net/ice/base: check for PTP HW lock more frequently

Message ID 20220815073206.2917968-68-qi.z.zhang@intel.com (mailing list archive)
State Awaiting Upstream
Delegated to: Qi Zhang
Headers show
Series ice base code update | expand

Checks

Context Check Description
ci/checkpatch success coding style OK

Commit Message

Zhang, Qi Z Aug. 15, 2022, 7:32 a.m. UTC
PTP HW semaphore can be held for ~50 ms in worst case.
SW should wait longer and check more frequently if
the HW lock is held.

Signed-off-by: Karol Kolacinski <karol.kolacinski@intel.com>
Signed-off-by: Qi Zhang <qi.z.zhang@intel.com>
---
 drivers/net/ice/base/ice_ptp_hw.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)
diff mbox series

Patch

diff --git a/drivers/net/ice/base/ice_ptp_hw.c b/drivers/net/ice/base/ice_ptp_hw.c
index f5ebf5f328..974c96f60c 100644
--- a/drivers/net/ice/base/ice_ptp_hw.c
+++ b/drivers/net/ice/base/ice_ptp_hw.c
@@ -4844,18 +4844,18 @@  bool ice_ptp_lock(struct ice_hw *hw)
 	u32 hw_lock;
 	int i;
 
-#define MAX_TRIES 5
+#define MAX_TRIES 15
 
 	for (i = 0; i < MAX_TRIES; i++) {
 		hw_lock = rd32(hw, PFTSYN_SEM + (PFTSYN_SEM_BYTES * hw->pf_id));
 		hw_lock = hw_lock & PFTSYN_SEM_BUSY_M;
 		if (hw_lock) {
 			/* Somebody is holding the lock */
-			ice_msec_delay(10, true);
+			ice_msec_delay(5, true);
 			continue;
-		} else {
-			break;
 		}
+
+		break;
 	}
 
 	return !hw_lock;