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From: Lorenzo Bianconi <lorenzo@kernel.org>
To: Andrew Lunn <andrew+netdev@lunn.ch>,
	 "David S. Miller" <davem@davemloft.net>,
	Eric Dumazet <edumazet@google.com>,
	 Jakub Kicinski <kuba@kernel.org>,
	Paolo Abeni <pabeni@redhat.com>,  Rob Herring <robh@kernel.org>,
	Krzysztof Kozlowski <krzk+dt@kernel.org>,
	 Conor Dooley <conor+dt@kernel.org>,
	Lorenzo Bianconi <lorenzo@kernel.org>
Cc: Christian Marangi <ansuelsmth@gmail.com>,
	 Benjamin Larsson <benjamin.larsson@genexis.eu>,
	 linux-arm-kernel@lists.infradead.org,
	linux-mediatek@lists.infradead.org,  netdev@vger.kernel.org,
	devicetree@vger.kernel.org,  Xuegang Lu <xuegang.lu@airoha.com>
Subject: [PATCH net-next v5 05/12] net: airoha: Rely on airoha_gdm_dev pointer in airhoa_is_lan_gdm_port()
Date: Sat, 09 May 2026 15:05:30 +0200	[thread overview]
Message-ID: <20260509-airoha-eth-multi-serdes-v5-5-805e38edc2aa@kernel.org> (raw)
In-Reply-To: <20260509-airoha-eth-multi-serdes-v5-0-805e38edc2aa@kernel.org>

Rename airhoa_is_lan_gdm_port in airhoa_is_lan_gdm_dev. Moreover, rely
on airoha_gdm_dev pointer in airhoa_is_lan_gdm_dev() instead of
airoha_gdm_port one.
This is a preliminary patch to support multiple net_devices connected to
the same GDM{3,4} port via an external hw arbiter.

Tested-by: Xuegang Lu <xuegang.lu@airoha.com>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
---
 drivers/net/ethernet/airoha/airoha_eth.c | 6 ++----
 drivers/net/ethernet/airoha/airoha_eth.h | 4 +++-
 drivers/net/ethernet/airoha/airoha_ppe.c | 2 +-
 3 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/drivers/net/ethernet/airoha/airoha_eth.c b/drivers/net/ethernet/airoha/airoha_eth.c
index 434d3a5ceaa3..f9cb49f0529a 100644
--- a/drivers/net/ethernet/airoha/airoha_eth.c
+++ b/drivers/net/ethernet/airoha/airoha_eth.c
@@ -73,12 +73,10 @@ static void airoha_qdma_irq_disable(struct airoha_irq_bank *irq_bank,
 
 static void airoha_set_macaddr(struct airoha_gdm_dev *dev, const u8 *addr)
 {
-	struct airoha_gdm_port *port = dev->port;
 	struct airoha_eth *eth = dev->eth;
 	u32 val, reg;
 
-	reg = airoha_is_lan_gdm_port(port) ? REG_FE_LAN_MAC_H
-					   : REG_FE_WAN_MAC_H;
+	reg = airoha_is_lan_gdm_dev(dev) ? REG_FE_LAN_MAC_H : REG_FE_WAN_MAC_H;
 	val = (addr[0] << 16) | (addr[1] << 8) | addr[2];
 	airoha_fe_wr(eth, reg, val);
 
@@ -1865,7 +1863,7 @@ static int airoha_dev_init(struct net_device *netdev)
 	int i;
 
 	/* QDMA0 is used for lan ports while QDMA1 is used for WAN ports */
-	dev->qdma = &eth->qdma[!airoha_is_lan_gdm_port(port)];
+	dev->qdma = &eth->qdma[!airoha_is_lan_gdm_dev(dev)];
 	dev->dev->irq = dev->qdma->irq_banks[0].irq;
 	airoha_set_macaddr(dev, netdev->dev_addr);
 
diff --git a/drivers/net/ethernet/airoha/airoha_eth.h b/drivers/net/ethernet/airoha/airoha_eth.h
index f2b4f12ed42a..c038e722370e 100644
--- a/drivers/net/ethernet/airoha/airoha_eth.h
+++ b/drivers/net/ethernet/airoha/airoha_eth.h
@@ -646,8 +646,10 @@ static inline u16 airoha_qdma_get_txq(struct airoha_qdma *qdma, u16 qid)
 	return qid % ARRAY_SIZE(qdma->q_tx);
 }
 
-static inline bool airoha_is_lan_gdm_port(struct airoha_gdm_port *port)
+static inline bool airoha_is_lan_gdm_dev(struct airoha_gdm_dev *dev)
 {
+	struct airoha_gdm_port *port = dev->port;
+
 	/* GDM1 port on EN7581 SoC is connected to the lan dsa switch.
 	 * GDM{2,3,4} can be used as wan port connected to an external
 	 * phy module.
diff --git a/drivers/net/ethernet/airoha/airoha_ppe.c b/drivers/net/ethernet/airoha/airoha_ppe.c
index 22f5f1bae730..047141b2d6d8 100644
--- a/drivers/net/ethernet/airoha/airoha_ppe.c
+++ b/drivers/net/ethernet/airoha/airoha_ppe.c
@@ -362,7 +362,7 @@ static int airoha_ppe_foe_entry_prepare(struct airoha_eth *eth,
 			/* For downlink traffic consume SRAM memory for hw
 			 * forwarding descriptors queue.
 			 */
-			if (airoha_is_lan_gdm_port(port))
+			if (airoha_is_lan_gdm_dev(dev))
 				val |= AIROHA_FOE_IB2_FAST_PATH;
 			if (dsa_port >= 0)
 				val |= FIELD_PREP(AIROHA_FOE_IB2_NBQ,

-- 
2.54.0


  parent reply	other threads:[~2026-05-09 13:06 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-05-09 13:05 [PATCH net-next v5 00/12] net: airoha: Support multiple net_devices connected to the same GDM port Lorenzo Bianconi
2026-05-09 13:05 ` [PATCH net-next v5 01/12] dt-bindings: net: airoha: Add EN7581 ethernet-ports properties Lorenzo Bianconi
2026-05-10 14:05   ` sashiko-bot
2026-05-09 13:05 ` [PATCH net-next v5 02/12] net: airoha: Reserve RX headroom to avoid skb reallocation Lorenzo Bianconi
2026-05-10 14:05   ` sashiko-bot
2026-05-09 13:05 ` [PATCH net-next v5 03/12] net: airoha: Introduce airoha_gdm_dev struct Lorenzo Bianconi
2026-05-09 13:05 ` [PATCH net-next v5 04/12] net: airoha: Move airoha_qdma pointer in " Lorenzo Bianconi
2026-05-09 13:05 ` Lorenzo Bianconi [this message]
2026-05-09 13:05 ` [PATCH net-next v5 06/12] net: airoha: Move qos_sq_bmap " Lorenzo Bianconi
2026-05-10 14:05   ` sashiko-bot
2026-05-09 13:05 ` [PATCH net-next v5 07/12] net: airoha: Move {cpu,fwd}_tx_packets " Lorenzo Bianconi
2026-05-09 13:05 ` [PATCH net-next v5 08/12] net: airoha: Support multiple net_devices for a single FE GDM port Lorenzo Bianconi
2026-05-10 14:05   ` sashiko-bot
2026-05-09 13:05 ` [PATCH net-next v5 09/12] net: airoha: Do not stop GDM port if it is shared Lorenzo Bianconi
2026-05-10 14:05   ` sashiko-bot
2026-05-09 13:05 ` [PATCH net-next v5 10/12] net: airoha: Introduce WAN device flag Lorenzo Bianconi
2026-05-09 13:05 ` [PATCH net-next v5 11/12] net: airoha: Support multiple LAN/WAN interfaces for hw MAC address configuration Lorenzo Bianconi
2026-05-10 14:05   ` sashiko-bot
2026-05-09 13:05 ` [PATCH net-next v5 12/12] net: airoha: Better handle MIB for GDM with multiple port attached Lorenzo Bianconi
2026-05-10 14:05   ` sashiko-bot
2026-05-11  6:51     ` Lorenzo Bianconi

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