netdev - [PATCH net-next 02/12] net: airoha: ppe: Dynamically allocate foe_check_time array in airoha

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Message-Id: <20251015-an7583-eth-support-v1-2-064855f05923@kernel.org>
Date: Wed, 15 Oct 2025 09:15:02 +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 02/12] net: airoha: ppe: Dynamically allocate
 foe_check_time array in airoha_ppe struct

This is a preliminary patch to properly enable PPE support for AN7583
SoC.

Signed-off-by: Lorenzo Bianconi <lorenzo@...nel.org>
---
 drivers/net/ethernet/airoha/airoha_eth.h | 2 +-
 drivers/net/ethernet/airoha/airoha_ppe.c | 5 +++++
 2 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/airoha/airoha_eth.h b/drivers/net/ethernet/airoha/airoha_eth.h
index cd13c1c1224f64b63d455b24ce722c33c2fa7125..4330b672d99e1e190efa5ad75d13fb35e77d070e 100644
--- a/drivers/net/ethernet/airoha/airoha_eth.h
+++ b/drivers/net/ethernet/airoha/airoha_eth.h
@@ -554,7 +554,7 @@ struct airoha_ppe {
 	struct rhashtable l2_flows;

 	struct hlist_head *foe_flow;
-	u16 foe_check_time[PPE_NUM_ENTRIES];
+	u16 *foe_check_time;

 	struct airoha_foe_stats *foe_stats;
 	dma_addr_t foe_stats_dma;
diff --git a/drivers/net/ethernet/airoha/airoha_ppe.c b/drivers/net/ethernet/airoha/airoha_ppe.c
index 691361b254075555549ee80a4ed358c52e8e00b2..8d1dceadce0becb2b1ce656d64ab77bd3c2f914a 100644
--- a/drivers/net/ethernet/airoha/airoha_ppe.c
+++ b/drivers/net/ethernet/airoha/airoha_ppe.c
@@ -1440,6 +1440,11 @@ int airoha_ppe_init(struct airoha_eth *eth)
 			return -ENOMEM;
 	}

+	ppe->foe_check_time = devm_kzalloc(eth->dev, PPE_NUM_ENTRIES,
+					   GFP_KERNEL);
+	if (!ppe->foe_check_time)
+		return -ENOMEM;
+
 	err = rhashtable_init(&eth->flow_table, &airoha_flow_table_params);
 	if (err)
 		return err;

-- 
2.51.0