linux-kernel - [PATCH net-next 2/7] net: sparx5: add function for RGMII port check

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Message-ID: <20241106-sparx5-lan969x-switch-driver-4-v1-2-f7f7316436bd@microchip.com>
Date: Wed, 6 Nov 2024 20:16:40 +0100
From: Daniel Machon <daniel.machon@...rochip.com>
To: <UNGLinuxDriver@...rochip.com>, 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>, "Lars
 Povlsen" <lars.povlsen@...rochip.com>, Steen Hegelund
	<Steen.Hegelund@...rochip.com>, Horatiu Vultur
	<horatiu.vultur@...rochip.com>, Russell King <linux@...linux.org.uk>,
	<jacob.e.keller@...el.com>
CC: <netdev@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
	<linux-arm-kernel@...ts.infradead.org>
Subject: [PATCH net-next 2/7] net: sparx5: add function for RGMII port
 check

The lan969x device contains two RGMII interfaces, sitting at port 28 and
29. Add function: is_port_rgmii() to the match data ops, that checks if
a given port is an RGMII port or not. For Sparx5, this function always
returns false.

Reviewed-by: Steen Hegelund <Steen.Hegelund@...rochip.com>
Reviewed-by: Horatiu Vultur <horatiu.vultur@...rochip.com>
Signed-off-by: Daniel Machon <daniel.machon@...rochip.com>
---
 drivers/net/ethernet/microchip/lan969x/lan969x.c    | 1 +
 drivers/net/ethernet/microchip/lan969x/lan969x.h    | 5 +++++
 drivers/net/ethernet/microchip/sparx5/sparx5_main.c | 1 +
 drivers/net/ethernet/microchip/sparx5/sparx5_main.h | 1 +
 drivers/net/ethernet/microchip/sparx5/sparx5_port.h | 5 +++++
 5 files changed, 13 insertions(+)

diff --git a/drivers/net/ethernet/microchip/lan969x/lan969x.c b/drivers/net/ethernet/microchip/lan969x/lan969x.c
index 79e5bcefbd73..8ac2652ef22c 100644
--- a/drivers/net/ethernet/microchip/lan969x/lan969x.c
+++ b/drivers/net/ethernet/microchip/lan969x/lan969x.c
@@ -326,6 +326,7 @@ static const struct sparx5_ops lan969x_ops = {
 	.is_port_5g              = &lan969x_port_is_5g,
 	.is_port_10g             = &lan969x_port_is_10g,
 	.is_port_25g             = &lan969x_port_is_25g,
+	.is_port_rgmii           = &lan969x_port_is_rgmii,
 	.get_port_dev_index      = &lan969x_port_dev_mapping,
 	.get_port_dev_bit        = &lan969x_get_dev_mode_bit,
 	.get_hsch_max_group_rate = &lan969x_get_hsch_max_group_rate,
diff --git a/drivers/net/ethernet/microchip/lan969x/lan969x.h b/drivers/net/ethernet/microchip/lan969x/lan969x.h
index 7ce047ad9ca4..47e2adce1bbb 100644
--- a/drivers/net/ethernet/microchip/lan969x/lan969x.h
+++ b/drivers/net/ethernet/microchip/lan969x/lan969x.h
@@ -51,6 +51,11 @@ static inline bool lan969x_port_is_25g(int portno)
 	return false;
 }
 
+static inline bool lan969x_port_is_rgmii(int portno)
+{
+	return portno == 28 || portno == 29;
+}
+
 /* lan969x_calendar.c */
 int lan969x_dsm_calendar_calc(struct sparx5 *sparx5, u32 taxi,
 			      struct sparx5_calendar_data *data);
diff --git a/drivers/net/ethernet/microchip/sparx5/sparx5_main.c b/drivers/net/ethernet/microchip/sparx5/sparx5_main.c
index 4f2d5413a64f..1c12ea0e6fd3 100644
--- a/drivers/net/ethernet/microchip/sparx5/sparx5_main.c
+++ b/drivers/net/ethernet/microchip/sparx5/sparx5_main.c
@@ -1070,6 +1070,7 @@ static const struct sparx5_ops sparx5_ops = {
 	.is_port_5g              = &sparx5_port_is_5g,
 	.is_port_10g             = &sparx5_port_is_10g,
 	.is_port_25g             = &sparx5_port_is_25g,
+	.is_port_rgmii           = &sparx5_port_is_rgmii,
 	.get_port_dev_index      = &sparx5_port_dev_mapping,
 	.get_port_dev_bit        = &sparx5_port_dev_mapping,
 	.get_hsch_max_group_rate = &sparx5_get_hsch_max_group_rate,
diff --git a/drivers/net/ethernet/microchip/sparx5/sparx5_main.h b/drivers/net/ethernet/microchip/sparx5/sparx5_main.h
index 91ae383a5555..a622c01930e7 100644
--- a/drivers/net/ethernet/microchip/sparx5/sparx5_main.h
+++ b/drivers/net/ethernet/microchip/sparx5/sparx5_main.h
@@ -313,6 +313,7 @@ struct sparx5_ops {
 	bool (*is_port_5g)(int portno);
 	bool (*is_port_10g)(int portno);
 	bool (*is_port_25g)(int portno);
+	bool (*is_port_rgmii)(int portno);
 	u32  (*get_port_dev_index)(struct sparx5 *sparx5, int port);
 	u32  (*get_port_dev_bit)(struct sparx5 *sparx5, int port);
 	u32  (*get_hsch_max_group_rate)(int grp);
diff --git a/drivers/net/ethernet/microchip/sparx5/sparx5_port.h b/drivers/net/ethernet/microchip/sparx5/sparx5_port.h
index 9b9bcc6834bc..c8a37468a3d1 100644
--- a/drivers/net/ethernet/microchip/sparx5/sparx5_port.h
+++ b/drivers/net/ethernet/microchip/sparx5/sparx5_port.h
@@ -40,6 +40,11 @@ static inline bool sparx5_port_is_25g(int portno)
 	return portno >= 56 && portno <= 63;
 }
 
+static inline bool sparx5_port_is_rgmii(int portno)
+{
+	return false;
+}
+
 static inline u32 sparx5_to_high_dev(struct sparx5 *sparx5, int port)
 {
 	const struct sparx5_ops *ops = sparx5->data->ops;

-- 
2.34.1