From e7fc07fcf20bf5d157c046cc998c185f349a3edf Mon Sep 17 00:00:00 2001
From: Roger Quadros <rogerq@kernel.org>
Date: Fri, 24 Oct 2025 23:46:04 +0300
Subject: [PATCH 06/12] net: ethernet: ti: cpsw_ale: add
 cpsw_ale_policer_reset_entry()

Add new helper cpsw_ale_policer_reset_entry() to reset a single
policer entry. Clear all fields instead of just clearing the enable bits.

Export cpsw_ale_policer_reset() as it will be required by cpsw
drivers using policer.

Signed-off-by: Roger Quadros <rogerq@kernel.org>
Signed-off-by: dao-qiu <d-qiu@ti.com>
---
 drivers/net/ethernet/ti/cpsw_ale.c | 35 +++++++++++++-----------------
 drivers/net/ethernet/ti/cpsw_ale.h |  4 ++++
 2 files changed, 19 insertions(+), 20 deletions(-)

@ drivers/net/ethernet/ti/cpsw_ale.c:1664 @ static void cpsw_ale_policer_thread_idx_enable(struct cpsw_ale *ale, u32 idx,
 	regmap_field_write(ale->fields[ALE_THREAD_ENABLE], enable ? 1 : 0);
 }
 
+static void cpsw_ale_policer_reset_entry(struct cpsw_ale *ale, u32 idx)
+{
+	int i;
+
+	cpsw_ale_policer_read_idx(ale, idx);
+	for (i = 0; i < CPSW_ALE_POLICER_ENTRY_WORDS; i++)
+		writel_relaxed(0, ale->params.ale_regs +
+			       ALE_POLICER_PORT_OUI + 4 * i);
+	cpsw_ale_policer_thread_idx_enable(ale, idx, 0, 0);
+	cpsw_ale_policer_write_idx(ale, idx);
+}
+
 /* Disable all policer entries and thread mappings */
-static void cpsw_ale_policer_reset(struct cpsw_ale *ale)
+void cpsw_ale_policer_reset(struct cpsw_ale *ale)
 {
 	int i;
 
-	for (i = 0; i < ale->params.num_policers ; i++) {
-		cpsw_ale_policer_read_idx(ale, i);
-		regmap_field_write(ale->fields[POL_PORT_MEN], 0);
-		regmap_field_write(ale->fields[POL_PRI_MEN], 0);
-		regmap_field_write(ale->fields[POL_OUI_MEN], 0);
-		regmap_field_write(ale->fields[POL_DST_MEN], 0);
-		regmap_field_write(ale->fields[POL_SRC_MEN], 0);
-		regmap_field_write(ale->fields[POL_OVLAN_MEN], 0);
-		regmap_field_write(ale->fields[POL_IVLAN_MEN], 0);
-		regmap_field_write(ale->fields[POL_ETHERTYPE_MEN], 0);
-		regmap_field_write(ale->fields[POL_IPSRC_MEN], 0);
-		regmap_field_write(ale->fields[POL_IPDST_MEN], 0);
-		regmap_field_write(ale->fields[POL_EN], 0);
-		regmap_field_write(ale->fields[POL_RED_DROP_EN], 0);
-		regmap_field_write(ale->fields[POL_YELLOW_DROP_EN], 0);
-		regmap_field_write(ale->fields[POL_PRIORITY_THREAD_EN], 0);
-
-		cpsw_ale_policer_thread_idx_enable(ale, i, 0, 0);
-	}
+	for (i = 0; i < ale->params.num_policers ; i++)
+		cpsw_ale_policer_reset_entry(ale, i);
 }
 
 /* Default classifier is to map 8 user priorities to N receive channels */
@ drivers/net/ethernet/ti/cpsw_ale.h:159 @ enum cpsw_ale_port_state {
 #define ALE_ENTRY_BITS		68
 #define ALE_ENTRY_WORDS	DIV_ROUND_UP(ALE_ENTRY_BITS, 32)
 
+/* Policer */
+#define CPSW_ALE_POLICER_ENTRY_WORDS	8
+
 struct cpsw_ale *cpsw_ale_create(struct cpsw_ale_params *params);
 
 void cpsw_ale_start(struct cpsw_ale *ale);
@ drivers/net/ethernet/ti/cpsw_ale.h:201 @ int cpsw_ale_vlan_del_modify(struct cpsw_ale *ale, u16 vid, int port_mask);
 void cpsw_ale_set_unreg_mcast(struct cpsw_ale *ale, int unreg_mcast_mask,
 			      bool add);
 void cpsw_ale_classifier_setup_default(struct cpsw_ale *ale, int num_rx_ch);
+void cpsw_ale_policer_reset(struct cpsw_ale *ale);
 
 #endif
-- 
2.34.1