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Message-Id: <20231206095355.1220086-2-jiawenwu@trustnetic.com>
Date: Wed, 6 Dec 2023 17:53:49 +0800
From: Jiawen Wu <jiawenwu@...stnetic.com>
To: davem@...emloft.net,
edumazet@...gle.com,
kuba@...nel.org,
pabeni@...hat.com,
linux@...linux.org.uk,
andrew@...n.ch,
netdev@...r.kernel.org
Cc: mengyuanlou@...-swift.com,
Jiawen Wu <jiawenwu@...stnetic.com>
Subject: [PATCH net-next v3 1/7] net: ngbe: implement phylink to handle PHY device
Add phylink support for Wangxun 1Gb Ethernet controller.
Signed-off-by: Jiawen Wu <jiawenwu@...stnetic.com>
---
drivers/net/ethernet/wangxun/libwx/wx_type.h | 8 ++
drivers/net/ethernet/wangxun/ngbe/ngbe_main.c | 20 ++-
drivers/net/ethernet/wangxun/ngbe/ngbe_mdio.c | 126 +++++++++++-------
drivers/net/ethernet/wangxun/ngbe/ngbe_mdio.h | 2 +-
4 files changed, 93 insertions(+), 63 deletions(-)
diff --git a/drivers/net/ethernet/wangxun/libwx/wx_type.h b/drivers/net/ethernet/wangxun/libwx/wx_type.h
index 165e82de772e..9225aaf029f8 100644
--- a/drivers/net/ethernet/wangxun/libwx/wx_type.h
+++ b/drivers/net/ethernet/wangxun/libwx/wx_type.h
@@ -8,6 +8,7 @@
#include <linux/netdevice.h>
#include <linux/if_vlan.h>
#include <net/ip.h>
+#include <linux/phylink.h>
#define WX_NCSI_SUP 0x8000
#define WX_NCSI_MASK 0x8000
@@ -940,6 +941,8 @@ struct wx {
int speed;
int duplex;
struct phy_device *phydev;
+ struct phylink *phylink;
+ struct phylink_config phylink_config;
bool wol_hw_supported;
bool ncsi_enabled;
@@ -1045,4 +1048,9 @@ rd64(struct wx *wx, u32 reg)
#define wx_dbg(wx, fmt, arg...) \
dev_dbg(&(wx)->pdev->dev, fmt, ##arg)
+static inline struct wx *phylink_to_wx(struct phylink_config *config)
+{
+ return container_of(config, struct wx, phylink_config);
+}
+
#endif /* _WX_TYPE_H_ */
diff --git a/drivers/net/ethernet/wangxun/ngbe/ngbe_main.c b/drivers/net/ethernet/wangxun/ngbe/ngbe_main.c
index 8db804543e66..c61f4b9d79fa 100644
--- a/drivers/net/ethernet/wangxun/ngbe/ngbe_main.c
+++ b/drivers/net/ethernet/wangxun/ngbe/ngbe_main.c
@@ -9,6 +9,7 @@
#include <linux/etherdevice.h>
#include <net/ip.h>
#include <linux/phy.h>
+#include <linux/phylink.h>
#include <linux/if_vlan.h>
#include "../libwx/wx_type.h"
@@ -336,7 +337,8 @@ static void ngbe_disable_device(struct wx *wx)
static void ngbe_down(struct wx *wx)
{
- phy_stop(wx->phydev);
+ phylink_stop(wx->phylink);
+ phylink_disconnect_phy(wx->phylink);
ngbe_disable_device(wx);
wx_clean_all_tx_rings(wx);
wx_clean_all_rx_rings(wx);
@@ -359,7 +361,7 @@ static void ngbe_up(struct wx *wx)
if (wx->gpio_ctrl)
ngbe_sfp_modules_txrx_powerctl(wx, true);
- phy_start(wx->phydev);
+ ngbe_phylink_start(wx);
}
/**
@@ -388,23 +390,18 @@ static int ngbe_open(struct net_device *netdev)
if (err)
goto err_free_resources;
- err = ngbe_phy_connect(wx);
- if (err)
- goto err_free_irq;
-
err = netif_set_real_num_tx_queues(netdev, wx->num_tx_queues);
if (err)
- goto err_dis_phy;
+ goto err_free_irq;
err = netif_set_real_num_rx_queues(netdev, wx->num_rx_queues);
if (err)
- goto err_dis_phy;
+ goto err_free_irq;
ngbe_up(wx);
return 0;
-err_dis_phy:
- phy_disconnect(wx->phydev);
+
err_free_irq:
wx_free_irq(wx);
err_free_resources:
@@ -430,7 +427,6 @@ static int ngbe_close(struct net_device *netdev)
ngbe_down(wx);
wx_free_irq(wx);
wx_free_resources(wx);
- phy_disconnect(wx->phydev);
wx_control_hw(wx, false);
return 0;
@@ -680,6 +676,7 @@ static int ngbe_probe(struct pci_dev *pdev,
return 0;
err_register:
+ phylink_destroy(wx->phylink);
wx_control_hw(wx, false);
err_clear_interrupt_scheme:
wx_clear_interrupt_scheme(wx);
@@ -709,6 +706,7 @@ static void ngbe_remove(struct pci_dev *pdev)
netdev = wx->netdev;
unregister_netdev(netdev);
+ phylink_destroy(wx->phylink);
pci_release_selected_regions(pdev,
pci_select_bars(pdev, IORESOURCE_MEM));
diff --git a/drivers/net/ethernet/wangxun/ngbe/ngbe_mdio.c b/drivers/net/ethernet/wangxun/ngbe/ngbe_mdio.c
index 6302ecca71bb..324f8af58b97 100644
--- a/drivers/net/ethernet/wangxun/ngbe/ngbe_mdio.c
+++ b/drivers/net/ethernet/wangxun/ngbe/ngbe_mdio.c
@@ -5,6 +5,7 @@
#include <linux/iopoll.h>
#include <linux/pci.h>
#include <linux/phy.h>
+#include <linux/phylink.h>
#include "../libwx/wx_type.h"
#include "../libwx/wx_hw.h"
@@ -56,22 +57,26 @@ static int ngbe_phy_write_reg_c22(struct mii_bus *bus, int phy_addr,
return ret;
}
-static void ngbe_handle_link_change(struct net_device *dev)
+static void ngbe_mac_config(struct phylink_config *config, unsigned int mode,
+ const struct phylink_link_state *state)
{
- struct wx *wx = netdev_priv(dev);
- struct phy_device *phydev;
- u32 lan_speed, reg;
+}
- phydev = wx->phydev;
- if (!(wx->link != phydev->link ||
- wx->speed != phydev->speed ||
- wx->duplex != phydev->duplex))
- return;
+static void ngbe_mac_link_down(struct phylink_config *config,
+ unsigned int mode, phy_interface_t interface)
+{
+}
+
+static void ngbe_mac_link_up(struct phylink_config *config,
+ struct phy_device *phy,
+ unsigned int mode, phy_interface_t interface,
+ int speed, int duplex,
+ bool tx_pause, bool rx_pause)
+{
+ struct wx *wx = phylink_to_wx(config);
+ u32 lan_speed, reg;
- wx->link = phydev->link;
- wx->speed = phydev->speed;
- wx->duplex = phydev->duplex;
- switch (phydev->speed) {
+ switch (speed) {
case SPEED_10:
lan_speed = 0;
break;
@@ -83,54 +88,68 @@ static void ngbe_handle_link_change(struct net_device *dev)
lan_speed = 2;
break;
}
+
wr32m(wx, NGBE_CFG_LAN_SPEED, 0x3, lan_speed);
- if (phydev->link) {
- reg = rd32(wx, WX_MAC_TX_CFG);
- reg &= ~WX_MAC_TX_CFG_SPEED_MASK;
- reg |= WX_MAC_TX_CFG_SPEED_1G | WX_MAC_TX_CFG_TE;
- wr32(wx, WX_MAC_TX_CFG, reg);
- /* Re configure MAC RX */
- reg = rd32(wx, WX_MAC_RX_CFG);
- wr32(wx, WX_MAC_RX_CFG, reg);
- wr32(wx, WX_MAC_PKT_FLT, WX_MAC_PKT_FLT_PR);
- reg = rd32(wx, WX_MAC_WDG_TIMEOUT);
- wr32(wx, WX_MAC_WDG_TIMEOUT, reg);
- }
- phy_print_status(phydev);
+ reg = rd32(wx, WX_MAC_TX_CFG);
+ reg &= ~WX_MAC_TX_CFG_SPEED_MASK;
+ reg |= WX_MAC_TX_CFG_SPEED_1G | WX_MAC_TX_CFG_TE;
+ wr32(wx, WX_MAC_TX_CFG, reg);
+
+ /* Re configure MAC Rx */
+ reg = rd32(wx, WX_MAC_RX_CFG);
+ wr32(wx, WX_MAC_RX_CFG, reg);
+ wr32(wx, WX_MAC_PKT_FLT, WX_MAC_PKT_FLT_PR);
+ reg = rd32(wx, WX_MAC_WDG_TIMEOUT);
+ wr32(wx, WX_MAC_WDG_TIMEOUT, reg);
}
-int ngbe_phy_connect(struct wx *wx)
+static const struct phylink_mac_ops ngbe_mac_ops = {
+ .mac_config = ngbe_mac_config,
+ .mac_link_down = ngbe_mac_link_down,
+ .mac_link_up = ngbe_mac_link_up,
+};
+
+static int ngbe_phylink_init(struct wx *wx)
{
- int ret;
+ struct phylink_config *config;
+ phy_interface_t phy_mode;
+ struct phylink *phylink;
- ret = phy_connect_direct(wx->netdev,
- wx->phydev,
- ngbe_handle_link_change,
- PHY_INTERFACE_MODE_RGMII_ID);
- if (ret) {
- wx_err(wx, "PHY connect failed.\n");
- return ret;
- }
+ config = &wx->phylink_config;
+ config->dev = &wx->netdev->dev;
+ config->type = PHYLINK_NETDEV;
+ config->mac_capabilities = MAC_1000FD | MAC_100FD | MAC_10FD |
+ MAC_SYM_PAUSE | MAC_ASYM_PAUSE;
+ config->mac_managed_pm = true;
+
+ phy_mode = PHY_INTERFACE_MODE_RGMII_ID;
+ __set_bit(PHY_INTERFACE_MODE_RGMII_ID, config->supported_interfaces);
+
+ phylink = phylink_create(config, NULL, phy_mode, &ngbe_mac_ops);
+ if (IS_ERR(phylink))
+ return PTR_ERR(phylink);
+
+ wx->phylink = phylink;
return 0;
}
-static void ngbe_phy_fixup(struct wx *wx)
+void ngbe_phylink_start(struct wx *wx)
{
- struct phy_device *phydev = wx->phydev;
- struct ethtool_eee eee;
-
- phy_remove_link_mode(phydev, ETHTOOL_LINK_MODE_10baseT_Half_BIT);
- phy_remove_link_mode(phydev, ETHTOOL_LINK_MODE_100baseT_Half_BIT);
- phy_remove_link_mode(phydev, ETHTOOL_LINK_MODE_1000baseT_Half_BIT);
-
- phydev->mac_managed_pm = true;
- if (wx->mac_type != em_mac_type_mdi)
- return;
- /* disable EEE, internal phy does not support eee */
- memset(&eee, 0, sizeof(eee));
- phy_ethtool_set_eee(phydev, &eee);
+ struct phylink *phylink = wx->phylink;
+
+ phylink_connect_phy(phylink, wx->phydev);
+
+ if (wx->mac_type == em_mac_type_mdi) {
+ struct ethtool_eee eee;
+
+ /* disable EEE, internal phy does not support eee */
+ memset(&eee, 0, sizeof(eee));
+ phylink_ethtool_set_eee(phylink, &eee);
+ }
+
+ phylink_start(phylink);
}
int ngbe_mdio_init(struct wx *wx)
@@ -165,11 +184,16 @@ int ngbe_mdio_init(struct wx *wx)
return -ENODEV;
phy_attached_info(wx->phydev);
- ngbe_phy_fixup(wx);
wx->link = 0;
wx->speed = 0;
wx->duplex = 0;
+ ret = ngbe_phylink_init(wx);
+ if (ret) {
+ wx_err(wx, "failed to init phylink: %d\n", ret);
+ return ret;
+ }
+
return 0;
}
diff --git a/drivers/net/ethernet/wangxun/ngbe/ngbe_mdio.h b/drivers/net/ethernet/wangxun/ngbe/ngbe_mdio.h
index 0a6400dd89c4..c5a9386caf0a 100644
--- a/drivers/net/ethernet/wangxun/ngbe/ngbe_mdio.h
+++ b/drivers/net/ethernet/wangxun/ngbe/ngbe_mdio.h
@@ -7,6 +7,6 @@
#ifndef _NGBE_MDIO_H_
#define _NGBE_MDIO_H_
-int ngbe_phy_connect(struct wx *wx);
+void ngbe_phylink_start(struct wx *wx);
int ngbe_mdio_init(struct wx *wx);
#endif /* _NGBE_MDIO_H_ */
--
2.27.0
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