diff mbox series

[v7,iwl-next,2/6] ice: Use FIELD_PREP for timestamp values

Message ID 20240820102402.576985-10-karol.kolacinski@intel.com (mailing list archive)
State Superseded
Delegated to: Netdev Maintainers
Headers show
Series ice: Implement PTP support for E830 devices | expand

Checks

Context Check Description
netdev/tree_selection success Guessing tree name failed - patch did not apply

Commit Message

Karol Kolacinski Aug. 20, 2024, 10:21 a.m. UTC 
Instead of using shifts and casts, use FIELD_PREP after reading 40b
timestamp values.

Signed-off-by: Karol Kolacinski <karol.kolacinski@intel.com>
---
V5 -> V6: Replaced removed macros with the new ones

 drivers/net/ethernet/intel/ice/ice_ptp_hw.c |  9 ++++++---
 drivers/net/ethernet/intel/ice/ice_ptp_hw.h | 13 +++++--------
 2 files changed, 11 insertions(+), 11 deletions(-)

Comments

Simon Horman Aug. 23, 2024, 8:16 p.m. UTC | #1 
On Tue, Aug 20, 2024 at 12:21:49PM +0200, Karol Kolacinski wrote:
> Instead of using shifts and casts, use FIELD_PREP after reading 40b
> timestamp values.
> 
> Signed-off-by: Karol Kolacinski <karol.kolacinski@intel.com>
> ---
> V5 -> V6: Replaced removed macros with the new ones

Thanks for the update.

Reviewed-by: Simon Horman <horms@kernel.org>
diff mbox series

Patch

diff --git a/drivers/net/ethernet/intel/ice/ice_ptp_hw.c b/drivers/net/ethernet/intel/ice/ice_ptp_hw.c
index 00c6483dbffc..25d4399a7966 100644
--- a/drivers/net/ethernet/intel/ice/ice_ptp_hw.c
+++ b/drivers/net/ethernet/intel/ice/ice_ptp_hw.c
@@ -1520,7 +1520,8 @@  static int ice_read_ptp_tstamp_eth56g(struct ice_hw *hw, u8 port, u8 idx,
 	 * lower 8 bits in the low register, and the upper 32 bits in the high
 	 * register.
 	 */
-	*tstamp = ((u64)hi) << TS_PHY_HIGH_S | ((u64)lo & TS_PHY_LOW_M);
+	*tstamp = FIELD_PREP(PHY_40B_HIGH_M, hi) |
+		  FIELD_PREP(PHY_40B_LOW_M, lo);
 
 	return 0;
 }
@@ -3199,7 +3200,8 @@  ice_read_phy_tstamp_e82x(struct ice_hw *hw, u8 quad, u8 idx, u64 *tstamp)
 	 * lower 8 bits in the low register, and the upper 32 bits in the high
 	 * register.
 	 */
-	*tstamp = FIELD_PREP(TS_PHY_HIGH_M, hi) | FIELD_PREP(TS_PHY_LOW_M, lo);
+	*tstamp = FIELD_PREP(PHY_40B_HIGH_M, hi) |
+		  FIELD_PREP(PHY_40B_LOW_M, lo);
 
 	return 0;
 }
@@ -4952,7 +4954,8 @@  ice_read_phy_tstamp_e810(struct ice_hw *hw, u8 lport, u8 idx, u64 *tstamp)
 	/* For E810 devices, the timestamp is reported with the lower 32 bits
 	 * in the low register, and the upper 8 bits in the high register.
 	 */
-	*tstamp = ((u64)hi) << TS_HIGH_S | ((u64)lo & TS_LOW_M);
+	*tstamp = FIELD_PREP(PHY_EXT_40B_HIGH_M, hi) |
+		  FIELD_PREP(PHY_EXT_40B_LOW_M, lo);
 
 	return 0;
 }
diff --git a/drivers/net/ethernet/intel/ice/ice_ptp_hw.h b/drivers/net/ethernet/intel/ice/ice_ptp_hw.h
index 8a28155b206f..df94230d820f 100644
--- a/drivers/net/ethernet/intel/ice/ice_ptp_hw.h
+++ b/drivers/net/ethernet/intel/ice/ice_ptp_hw.h
@@ -673,15 +673,12 @@  static inline u64 ice_get_base_incval(struct ice_hw *hw)
 /* Source timer incval macros */
 #define INCVAL_HIGH_M			0xFF
 
-/* Timestamp block macros */
+/* PHY 40b registers macros */
+#define PHY_EXT_40B_LOW_M		GENMASK(31, 0)
+#define PHY_EXT_40B_HIGH_M		GENMASK_ULL(39, 32)
+#define PHY_40B_LOW_M			GENMASK(7, 0)
+#define PHY_40B_HIGH_M			GENMASK_ULL(39, 8)
 #define TS_VALID			BIT(0)
-#define TS_LOW_M			0xFFFFFFFF
-#define TS_HIGH_M			0xFF
-#define TS_HIGH_S			32
-
-#define TS_PHY_LOW_M			0xFF
-#define TS_PHY_HIGH_M			0xFFFFFFFF
-#define TS_PHY_HIGH_S			8
 
 #define BYTES_PER_IDX_ADDR_L_U		8
 #define BYTES_PER_IDX_ADDR_L		4