netdev - [PATCH net-next 07/12] net: airoha: ppe: Remove airoha_ppe_is

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Message-Id: <20251015-an7583-eth-support-v1-7-064855f05923@kernel.org>
Date: Wed, 15 Oct 2025 09:15:07 +0200
From: Lorenzo Bianconi <lorenzo@...nel.org>
To: Andrew Lunn <andrew+netdev@...n.ch>, 
 "David S. Miller" <davem@...emloft.net>, Eric Dumazet <edumazet@...gle.com>, 
 Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>, 
 Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, Philipp Zabel <p.zabel@...gutronix.de>, 
 Lorenzo Bianconi <lorenzo@...nel.org>
Cc: linux-arm-kernel@...ts.infradead.org, 
 linux-mediatek@...ts.infradead.org, netdev@...r.kernel.org, 
 devicetree@...r.kernel.org
Subject: [PATCH net-next 07/12] net: airoha: ppe: Remove
 airoha_ppe_is_enabled() where not necessary

Now each PPE has always PPE_STATS_NUM_ENTRIES entries so we do not need
to run airoha_ppe_is_enabled routine to check if the hash refers to
PPE1 or PPE2.

Signed-off-by: Lorenzo Bianconi <lorenzo@...nel.org>
---
 drivers/net/ethernet/airoha/airoha_ppe.c | 13 ++++---------
 1 file changed, 4 insertions(+), 9 deletions(-)

diff --git a/drivers/net/ethernet/airoha/airoha_ppe.c b/drivers/net/ethernet/airoha/airoha_ppe.c
index 58306cf91daf9faeb4f1cc0092579654dde3cfb0..fcfd2d8826a9c2f8f94f1962c2b2a69f67f7f598 100644
--- a/drivers/net/ethernet/airoha/airoha_ppe.c
+++ b/drivers/net/ethernet/airoha/airoha_ppe.c
@@ -520,10 +520,8 @@ static int airoha_ppe_foe_get_flow_stats_index(struct airoha_ppe *ppe,
 	if (err)
 		return err;

-	*index = hash;
-	if (airoha_ppe_is_enabled(ppe->eth, 1) &&
-	    hash >= ppe_num_stats_entries)
-		*index = *index - PPE_STATS_NUM_ENTRIES;
+	*index = hash >= ppe_num_stats_entries ? hash - PPE_STATS_NUM_ENTRIES
+					       : hash;

 	return 0;
 }
@@ -613,13 +611,11 @@ airoha_ppe_foe_get_entry_locked(struct airoha_ppe *ppe, u32 hash)

 	if (hash < sram_num_entries) {
 		u32 *hwe = ppe->foe + hash * sizeof(struct airoha_foe_entry);
+		bool ppe2 = hash >= PPE_SRAM_NUM_ENTRIES;
 		struct airoha_eth *eth = ppe->eth;
-		bool ppe2;
 		u32 val;
 		int i;

-		ppe2 = airoha_ppe_is_enabled(ppe->eth, 1) &&
-		       hash >= PPE_SRAM_NUM_ENTRIES;
 		airoha_fe_wr(ppe->eth, REG_PPE_RAM_CTRL(ppe2),
 			     FIELD_PREP(PPE_SRAM_CTRL_ENTRY_MASK, hash) |
 			     PPE_SRAM_CTRL_REQ_MASK);
@@ -697,8 +693,7 @@ static int airoha_ppe_foe_commit_entry(struct airoha_ppe *ppe,

 	if (hash < sram_num_entries) {
 		dma_addr_t addr = ppe->foe_dma + hash * sizeof(*hwe);
-		bool ppe2 = airoha_ppe_is_enabled(eth, 1) &&
-			    hash >= PPE_SRAM_NUM_ENTRIES;
+		bool ppe2 = hash >= PPE_SRAM_NUM_ENTRIES;

 		err = npu->ops.ppe_foe_commit_entry(npu, addr, sizeof(*hwe),
 						    hash, ppe2);

-- 
2.51.0