netdev - [PATCH v2 iwl-next 1/4] ice: Fix E825 initialization

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Message-ID: <20241009140223.1918687-2-karol.kolacinski@intel.com>
Date: Wed,  9 Oct 2024 15:59:26 +0200
From: Karol Kolacinski <karol.kolacinski@...el.com>
To: intel-wired-lan@...ts.osuosl.org
Cc: netdev@...r.kernel.org,
	anthony.l.nguyen@...el.com,
	przemyslaw.kitszel@...el.com,
	Karol Kolacinski <karol.kolacinski@...el.com>,
	Arkadiusz Kubalewski <arkadiusz.kubalewski@...el.com>
Subject: [PATCH v2 iwl-next 1/4] ice: Fix E825 initialization

Current implementation checks revision of all PHYs on all PFs, which is
incorrect and may result in initialization failure. Check only the
revision of the current PHY.

Fixes: 7cab44f1c35f ("ice: Introduce ETH56G PHY model for E825C products")
Reviewed-by: Arkadiusz Kubalewski <arkadiusz.kubalewski@...el.com>
Signed-off-by: Karol Kolacinski <karol.kolacinski@...el.com>
---
V1 -> V2: Removed net-next hunks

 drivers/net/ethernet/intel/ice/ice_ptp_hw.c | 22 ++++++++-------------
 drivers/net/ethernet/intel/ice/ice_ptp_hw.h |  3 ++-
 2 files changed, 10 insertions(+), 15 deletions(-)

diff --git a/drivers/net/ethernet/intel/ice/ice_ptp_hw.c b/drivers/net/ethernet/intel/ice/ice_ptp_hw.c
index 3a33e6b9b313..d9a3c7de0342 100644
--- a/drivers/net/ethernet/intel/ice/ice_ptp_hw.c
+++ b/drivers/net/ethernet/intel/ice/ice_ptp_hw.c
@@ -2665,14 +2665,15 @@ static bool ice_is_muxed_topo(struct ice_hw *hw)
 }
 
 /**
- * ice_ptp_init_phy_e825c - initialize PHY parameters
+ * ice_ptp_init_phy_e825 - initialize PHY parameters
  * @hw: pointer to the HW struct
  */
-static void ice_ptp_init_phy_e825c(struct ice_hw *hw)
+static void ice_ptp_init_phy_e825(struct ice_hw *hw)
 {
 	struct ice_ptp_hw *ptp = &hw->ptp;
 	struct ice_eth56g_params *params;
-	u8 phy;
+	u32 phy_rev;
+	int err;
 
 	ptp->phy_model = ICE_PHY_ETH56G;
 	params = &ptp->phy.eth56g;
@@ -2686,16 +2687,9 @@ static void ice_ptp_init_phy_e825c(struct ice_hw *hw)
 	ptp->num_lports = params->num_phys * ptp->ports_per_phy;
 
 	ice_sb_access_ena_eth56g(hw, true);
-	for (phy = 0; phy < params->num_phys; phy++) {
-		u32 phy_rev;
-		int err;
-
-		err = ice_read_phy_eth56g(hw, phy, PHY_REG_REVISION, &phy_rev);
-		if (err || phy_rev != PHY_REVISION_ETH56G) {
-			ptp->phy_model = ICE_PHY_UNSUP;
-			return;
-		}
-	}
+	err = ice_read_phy_eth56g(hw, hw->pf_id, PHY_REG_REVISION, &phy_rev);
+	if (err || phy_rev != PHY_REVISION_ETH56G)
+		ptp->phy_model = ICE_PHY_UNSUP;
 
 	ptp->is_2x50g_muxed_topo = ice_is_muxed_topo(hw);
 }
@@ -5396,7 +5390,7 @@ void ice_ptp_init_hw(struct ice_hw *hw)
 	else if (ice_is_e810(hw))
 		ice_ptp_init_phy_e810(ptp);
 	else if (ice_is_e825c(hw))
-		ice_ptp_init_phy_e825c(hw);
+		ice_ptp_init_phy_e825(hw);
 	else
 		ptp->phy_model = ICE_PHY_UNSUP;
 }
diff --git a/drivers/net/ethernet/intel/ice/ice_ptp_hw.h b/drivers/net/ethernet/intel/ice/ice_ptp_hw.h
index 0852a34ade91..35141198f261 100644
--- a/drivers/net/ethernet/intel/ice/ice_ptp_hw.h
+++ b/drivers/net/ethernet/intel/ice/ice_ptp_hw.h
@@ -326,7 +326,8 @@ extern const struct ice_vernier_info_e82x e822_vernier[NUM_ICE_PTP_LNK_SPD];
  */
 #define ICE_E810_PLL_FREQ		812500000
 #define ICE_PTP_NOMINAL_INCVAL_E810	0x13b13b13bULL
-#define E810_OUT_PROP_DELAY_NS 1
+#define ICE_E810_OUT_PROP_DELAY_NS	1
+#define ICE_E825_SYNC_DELAY		6
 
 /* Device agnostic functions */
 u8 ice_get_ptp_src_clock_index(struct ice_hw *hw);
-- 
2.46.2