netdev - [PATCH v9 iwl-next 6/7] ice: Refactor ice_ptp_init_tx

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Message-ID: <20240829114201.1030938-15-karol.kolacinski@intel.com>
Date: Thu, 29 Aug 2024 13:37:42 +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>
Subject: [PATCH v9 iwl-next 6/7] ice: Refactor ice_ptp_init_tx_*

Unify ice_ptp_init_tx_* functions for most of the MAC types except E82X.
This simplifies the code for the future use with new MAC types.

Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@...el.com>
Signed-off-by: Karol Kolacinski <karol.kolacinski@...el.com>
---
V7 -> V8: Renamed the patch and reworded the commit message

 drivers/net/ethernet/intel/ice/ice_ptp.c | 56 ++++++++----------------
 drivers/net/ethernet/intel/ice/ice_ptp.h |  3 +-
 2 files changed, 20 insertions(+), 39 deletions(-)

diff --git a/drivers/net/ethernet/intel/ice/ice_ptp.c b/drivers/net/ethernet/intel/ice/ice_ptp.c
index 79e6472760c1..3375762cd8cc 100644
--- a/drivers/net/ethernet/intel/ice/ice_ptp.c
+++ b/drivers/net/ethernet/intel/ice/ice_ptp.c
@@ -945,28 +945,6 @@ ice_ptp_release_tx_tracker(struct ice_pf *pf, struct ice_ptp_tx *tx)
 	tx->len = 0;
 }
 
-/**
- * ice_ptp_init_tx_eth56g - Initialize tracking for Tx timestamps
- * @pf: Board private structure
- * @tx: the Tx tracking structure to initialize
- * @port: the port this structure tracks
- *
- * Initialize the Tx timestamp tracker for this port. ETH56G PHYs
- * have independent memory blocks for all ports.
- *
- * Return: 0 for success, -ENOMEM when failed to allocate Tx tracker
- */
-static int ice_ptp_init_tx_eth56g(struct ice_pf *pf, struct ice_ptp_tx *tx,
-				  u8 port)
-{
-	tx->block = port;
-	tx->offset = 0;
-	tx->len = INDEX_PER_PORT_ETH56G;
-	tx->has_ready_bitmap = 1;
-
-	return ice_ptp_alloc_tx_tracker(tx);
-}
-
 /**
  * ice_ptp_init_tx_e82x - Initialize tracking for Tx timestamps
  * @pf: Board private structure
@@ -977,9 +955,11 @@ static int ice_ptp_init_tx_eth56g(struct ice_pf *pf, struct ice_ptp_tx *tx,
  * the timestamp block is shared for all ports in the same quad. To avoid
  * ports using the same timestamp index, logically break the block of
  * registers into chunks based on the port number.
+ *
+ * Return: 0 on success, -ENOMEM when out of memory
  */
-static int
-ice_ptp_init_tx_e82x(struct ice_pf *pf, struct ice_ptp_tx *tx, u8 port)
+static int ice_ptp_init_tx_e82x(struct ice_pf *pf, struct ice_ptp_tx *tx,
+				u8 port)
 {
 	tx->block = ICE_GET_QUAD_NUM(port);
 	tx->offset = (port % ICE_PORTS_PER_QUAD) * INDEX_PER_PORT_E82X;
@@ -990,24 +970,27 @@ ice_ptp_init_tx_e82x(struct ice_pf *pf, struct ice_ptp_tx *tx, u8 port)
 }
 
 /**
- * ice_ptp_init_tx_e810 - Initialize tracking for Tx timestamps
+ * ice_ptp_init_tx - Initialize tracking for Tx timestamps
  * @pf: Board private structure
  * @tx: the Tx tracking structure to initialize
+ * @port: the port this structure tracks
+ *
+ * Initialize the Tx timestamp tracker for this PF. For all PHYs except E82X,
+ * each port has its own block of timestamps, independent of the other ports.
  *
- * Initialize the Tx timestamp tracker for this PF. For E810 devices, each
- * port has its own block of timestamps, independent of the other ports.
+ * Return: 0 on success, -ENOMEM when out of memory
  */
-static int
-ice_ptp_init_tx_e810(struct ice_pf *pf, struct ice_ptp_tx *tx)
+static int ice_ptp_init_tx(struct ice_pf *pf, struct ice_ptp_tx *tx, u8 port)
 {
-	tx->block = pf->hw.port_info->lport;
+	tx->block = port;
 	tx->offset = 0;
-	tx->len = INDEX_PER_PORT_E810;
+	tx->len = INDEX_PER_PORT;
+
 	/* The E810 PHY does not provide a timestamp ready bitmap. Instead,
 	 * verify new timestamps against cached copy of the last read
 	 * timestamp.
 	 */
-	tx->has_ready_bitmap = 0;
+	tx->has_ready_bitmap = pf->hw.mac_type != ICE_MAC_E810;
 
 	return ice_ptp_alloc_tx_tracker(tx);
 }
@@ -3228,6 +3211,8 @@ static int ice_ptp_init_work(struct ice_pf *pf, struct ice_ptp *ptp)
  * ice_ptp_init_port - Initialize PTP port structure
  * @pf: Board private structure
  * @ptp_port: PTP port structure
+ *
+ * Return: 0 on success, -ENODEV on invalid MAC type, -ENOMEM on failed alloc.
  */
 static int ice_ptp_init_port(struct ice_pf *pf, struct ice_ptp_port *ptp_port)
 {
@@ -3237,16 +3222,13 @@ static int ice_ptp_init_port(struct ice_pf *pf, struct ice_ptp_port *ptp_port)
 
 	switch (hw->mac_type) {
 	case ICE_MAC_E810:
-		return ice_ptp_init_tx_e810(pf, &ptp_port->tx);
+	case ICE_MAC_GENERIC_3K_E825:
+		return ice_ptp_init_tx(pf, &ptp_port->tx, ptp_port->port_num);
 	case ICE_MAC_GENERIC:
 		kthread_init_delayed_work(&ptp_port->ov_work,
 					  ice_ptp_wait_for_offsets);
-
 		return ice_ptp_init_tx_e82x(pf, &ptp_port->tx,
 					    ptp_port->port_num);
-	case ICE_MAC_GENERIC_3K_E825:
-		return ice_ptp_init_tx_eth56g(pf, &ptp_port->tx,
-					      ptp_port->port_num);
 	default:
 		return -ENODEV;
 	}
diff --git a/drivers/net/ethernet/intel/ice/ice_ptp.h b/drivers/net/ethernet/intel/ice/ice_ptp.h
index acee46ad793a..5af474285780 100644
--- a/drivers/net/ethernet/intel/ice/ice_ptp.h
+++ b/drivers/net/ethernet/intel/ice/ice_ptp.h
@@ -128,8 +128,7 @@ struct ice_ptp_tx {
 /* Quad and port information for initializing timestamp blocks */
 #define INDEX_PER_QUAD			64
 #define INDEX_PER_PORT_E82X		16
-#define INDEX_PER_PORT_E810		64
-#define INDEX_PER_PORT_ETH56G		64
+#define INDEX_PER_PORT			64
 
 /**
  * struct ice_ptp_port - data used to initialize an external port for PTP
-- 
2.46.0