linux-kernel - [PATCH net-next v2 7/8] net: dsa: lantiq_gswip: store switch API version in priv

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Message-ID: <56f6b06e22b3b6dbfb45ef04a43bac13a8cb02e5.1755564606.git.daniel@makrotopia.org>
Date: Tue, 19 Aug 2025 02:34:33 +0100
From: Daniel Golle <daniel@...rotopia.org>
To: Hauke Mehrtens <hauke@...ke-m.de>, Andrew Lunn <andrew@...n.ch>,
	Vladimir Oltean <olteanv@...il.com>,
	"David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>,
	Philipp Zabel <p.zabel@...gutronix.de>,
	Russell King <linux@...linux.org.uk>, linux-kernel@...r.kernel.org,
	netdev@...r.kernel.org
Cc: Andreas Schirm <andreas.schirm@...mens.com>,
	Lukas Stockmann <lukas.stockmann@...mens.com>,
	Alexander Sverdlin <alexander.sverdlin@...mens.com>,
	Peter Christen <peter.christen@...mens.com>,
	Avinash Jayaraman <ajayaraman@...linear.com>,
	Bing tao Xu <bxu@...linear.com>, Liang Xu <lxu@...linear.com>,
	Juraj Povazanec <jpovazanec@...linear.com>,
	"Fanni (Fang-Yi) Chan" <fchan@...linear.com>,
	"Benny (Ying-Tsan) Weng" <yweng@...linear.com>,
	"Livia M. Rosu" <lrosu@...linear.com>,
	John Crispin <john@...ozen.org>
Subject: [PATCH net-next v2 7/8] net: dsa: lantiq_gswip: store switch API
 version in priv

Store the switch API version in struct gswip_priv (in host endian) to
prepare supporting newer features such as 4096 VLANs and per-port
configurable learning.

Signed-off-by: Daniel Golle <daniel@...rotopia.org>
---
v2: store version as u16 in host byte order

 drivers/net/dsa/lantiq_gswip.c | 3 +++
 drivers/net/dsa/lantiq_gswip.h | 1 +
 2 files changed, 4 insertions(+)

diff --git a/drivers/net/dsa/lantiq_gswip.c b/drivers/net/dsa/lantiq_gswip.c
index d42e7625fe44..751ac9d6e49b 100644
--- a/drivers/net/dsa/lantiq_gswip.c
+++ b/drivers/net/dsa/lantiq_gswip.c
@@ -28,6 +28,7 @@
 #include "lantiq_gswip.h"
 #include "lantiq_pce.h"
 
+#include <linux/byteorder/generic.h>
 #include <linux/delay.h>
 #include <linux/etherdevice.h>
 #include <linux/firmware.h>
@@ -1936,6 +1937,8 @@ static int gswip_probe(struct platform_device *pdev)
 					     "gphy fw probe failed\n");
 	}
 
+	priv->version = le16_to_cpu(version);
+
 	/* bring up the mdio bus */
 	err = gswip_mdio(priv);
 	if (err) {
diff --git a/drivers/net/dsa/lantiq_gswip.h b/drivers/net/dsa/lantiq_gswip.h
index d4603bba7e7c..5a0ac7a538d9 100644
--- a/drivers/net/dsa/lantiq_gswip.h
+++ b/drivers/net/dsa/lantiq_gswip.h
@@ -259,6 +259,7 @@ struct gswip_priv {
 	struct gswip_gphy_fw *gphy_fw;
 	u32 port_vlan_filter;
 	struct mutex pce_table_lock;
+	u16 version;
 };
 
 #endif /* __LANTIQ_GSWIP_H */
-- 
2.50.1