netdev - [PATCH] net: stmmac: add support for platform specific config.

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-ID: <20250606114155.3517-1-xiongliang@xiaomi.com>
Date: Fri, 6 Jun 2025 19:41:55 +0800
From: Xandy.Xiong <xiongliang@...omi.com>
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>, Maxime Coquelin
	<mcoquelin.stm32@...il.com>, Alexandre Torgue <alexandre.torgue@...s.st.com>
CC: "Russell King (Oracle)" <rmk+kernel@...linux.org.uk>, Furong Xu
	<0x1207@...il.com>, <netdev@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
	<xiongliang@...omi.com>
Subject: [PATCH] net: stmmac: add support for platform specific config.

This patch adds support for platform-specific init config in the
stmmac driver. As SMMU remap, must after dma descriptor setup,
and same mac link caps must init before phy init. To support these feature,
a new function pointer 'fix_mac_config' is added to the
plat_stmmacenet_data structure.
And call the function pointer 'fix_mac_config' in the __stmmac_open().

Signed-off-by: Xandy.Xiong <xiongliang@...omi.com>
---
 drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 4 ++++
 include/linux/stmmac.h                            | 1 +
 2 files changed, 5 insertions(+)

diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
index 085c09039af4..8d629a3c2237 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
@@ -4041,6 +4041,10 @@ static int __stmmac_open(struct net_device *dev,
 	if (ret < 0)
 		return ret;
 
+	/* Same mac config must before phy init and after stmmac_setup_dma_desc */
+	if (priv->plat->fix_mac_config)
+		priv->plat->fix_mac_config(dev, priv->plat->bsp_priv);
+
 	if ((!priv->hw->xpcs ||
 	     xpcs_get_an_mode(priv->hw->xpcs, mode) != DW_AN_C73)) {
 		ret = stmmac_init_phy(dev);
diff --git a/include/linux/stmmac.h b/include/linux/stmmac.h
index 26ddf95d23f9..0a6021e5b932 100644
--- a/include/linux/stmmac.h
+++ b/include/linux/stmmac.h
@@ -239,6 +239,7 @@ struct plat_stmmacenet_data {
 			       phy_interface_t interface, int speed);
 	void (*fix_mac_speed)(void *priv, int speed, unsigned int mode);
 	int (*fix_soc_reset)(void *priv, void __iomem *ioaddr);
+	int (*fix_mac_config)(struct net_device *ndev, void *priv);
 	int (*serdes_powerup)(struct net_device *ndev, void *priv);
 	void (*serdes_powerdown)(struct net_device *ndev, void *priv);
 	int (*mac_finish)(struct net_device *ndev,
-- 
2.25.1