On 3/29/2024 9:09 AM, Karol Kolacinski wrote:
From: Jacob Keller <[email protected]>

Add a new helper for getting base clock increment value for specific HW.

Signed-off-by: Jacob Keller <[email protected]>
Reviewed-by: Przemek Kitszel <[email protected]>
Reviewed-by: Arkadiusz Kubalewski <[email protected]>
Signed-off-by: Karol Kolacinski <[email protected]>
---
  drivers/net/ethernet/intel/ice/ice_ptp.c    |  7 +------
  drivers/net/ethernet/intel/ice/ice_ptp_hw.h | 12 ++++++++++++
  2 files changed, 13 insertions(+), 6 deletions(-)

diff --git a/drivers/net/ethernet/intel/ice/ice_ptp.c 
b/drivers/net/ethernet/intel/ice/ice_ptp.c
index 7980482bbf56..cd2dab7b4c44 100644
--- a/drivers/net/ethernet/intel/ice/ice_ptp.c
+++ b/drivers/net/ethernet/intel/ice/ice_ptp.c
@@ -1210,12 +1210,7 @@ static u64 ice_base_incval(struct ice_pf *pf)
        struct ice_hw *hw = &pf->hw;
        u64 incval;
- if (ice_is_e810(hw))
-               incval = ICE_PTP_NOMINAL_INCVAL_E810;
-       else if (ice_e82x_time_ref(hw) < NUM_ICE_TIME_REF_FREQ)
-               incval = ice_e82x_nominal_incval(ice_e82x_time_ref(hw));
-       else
-               incval = UNKNOWN_INCVAL_E82X;

Unknown used to return a value:
https://elixir.bootlin.com/linux/latest/source/drivers/net/ethernet/intel/ice/ice_ptp.c#L10

+       incval = ice_get_base_incval(hw);
dev_dbg(ice_pf_to_dev(pf), "PTP: using base increment value of 0x%016llx\n",
                incval);
diff --git a/drivers/net/ethernet/intel/ice/ice_ptp_hw.h 
b/drivers/net/ethernet/intel/ice/ice_ptp_hw.h
index 5223e17d2806..d477d334b1d8 100644
--- a/drivers/net/ethernet/intel/ice/ice_ptp_hw.h
+++ b/drivers/net/ethernet/intel/ice/ice_ptp_hw.h
@@ -285,6 +285,18 @@ int ice_get_cgu_rclk_pin_info(struct ice_hw *hw, u8 
*base_idx, u8 *pin_num);
  int ice_cgu_get_output_pin_state_caps(struct ice_hw *hw, u8 pin_id,
                                      unsigned long *caps);
+static inline u64 ice_get_base_incval(struct ice_hw *hw)
+{
+       switch (hw->ptp.phy_model) {
+       case ICE_PHY_E810:
+               return ICE_PTP_NOMINAL_INCVAL_E810;
+       case ICE_PHY_E82X:
+               return ice_e82x_nominal_incval(ice_e82x_time_ref(hw));
+       default:
+               return 0;

but now it's 0. Is this on purpose? If yes, it was the only usage of the UNKNOWN_INCVAL_E82X so it should be removed.

+       }
+}
+
  #define PFTSYN_SEM_BYTES      4
#define ICE_PTP_CLOCK_INDEX_0 0x00

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