Commit a1cf597b authored by Mengyuan Lou's avatar Mengyuan Lou Committed by Jakub Kicinski
Browse files

net: ngbe: Add ngbe mdio bus driver. 



Add mdio bus register for ngbe.
The internal phy and external phy need to be handled separately.
Add phy changed event detection.

Signed-off-by: default avatarMengyuan Lou <mengyuanlou@net-swift.com>
Reviewed-by: default avatarAndrew Lunn <andrew@lunn.ch>
Link: https://lore.kernel.org/r/20230111111718.40745-1-mengyuanlou@net-swift.com


Signed-off-by: default avatarJakub Kicinski <kuba@kernel.org>
parent 296403f9

drivers/net/ethernet/wangxun/Kconfig

+1 −0
Original line number Diff line number Diff line
@@ -25,6 +25,7 @@ config NGBE 
	tristate "Wangxun(R) GbE PCI Express adapters support"

	depends on PCI

	select LIBWX

	select PHYLIB

	help

	  This driver supports Wangxun(R) GbE PCI Express family of

	  adapters.

drivers/net/ethernet/wangxun/libwx/wx_type.h

+9 −0
Original line number Diff line number Diff line
@@ -133,11 +133,14 @@ 
/************************************* ETH MAC *****************************/

#define WX_MAC_TX_CFG                0x11000

#define WX_MAC_TX_CFG_TE             BIT(0)

#define WX_MAC_TX_CFG_SPEED_MASK     GENMASK(30, 29)

#define WX_MAC_TX_CFG_SPEED_1G       (0x3 << 29)

#define WX_MAC_RX_CFG                0x11004

#define WX_MAC_RX_CFG_RE             BIT(0)

#define WX_MAC_RX_CFG_JE             BIT(8)

#define WX_MAC_PKT_FLT               0x11008

#define WX_MAC_PKT_FLT_PR            BIT(0) /* promiscuous mode */

#define WX_MAC_WDG_TIMEOUT           0x1100C

#define WX_MAC_RX_FLOW_CTRL          0x11090

#define WX_MAC_RX_FLOW_CTRL_RFE      BIT(0) /* receive fc enable */

#define WX_MMC_CONTROL               0x11800
@@ -330,6 +333,12 @@ struct wx { 
	char eeprom_id[32];

	enum wx_reset_type reset_type;



	/* PHY stuff */

	unsigned int link;

	int speed;

	int duplex;

	struct phy_device *phydev;



	bool wol_enabled;

	bool ncsi_enabled;

	bool gpio_ctrl;

drivers/net/ethernet/wangxun/ngbe/Makefile

+1 −1
Original line number Diff line number Diff line
@@ -6,4 +6,4 @@ 


obj-$(CONFIG_NGBE) += ngbe.o



ngbe-objs := ngbe_main.o ngbe_hw.o
 
ngbe-objs := ngbe_main.o ngbe_hw.o ngbe_mdio.o

drivers/net/ethernet/wangxun/ngbe/ngbe_hw.c

+29 −10
Original line number Diff line number Diff line
@@ -39,16 +39,24 @@ int ngbe_eeprom_chksum_hostif(struct wx *wx) 
static int ngbe_reset_misc(struct wx *wx)

{

	wx_reset_misc(wx);

	if (wx->mac_type == em_mac_type_rgmii)

		wr32(wx, NGBE_MDIO_CLAUSE_SELECT, 0xF);

	if (wx->gpio_ctrl) {

		/* gpio0 is used to power on/off control*/

		wr32(wx, NGBE_GPIO_DDR, 0x1);

		wr32(wx, NGBE_GPIO_DR, NGBE_GPIO_DR_0);

		ngbe_sfp_modules_txrx_powerctl(wx, false);

	}

	return 0;

}



void ngbe_sfp_modules_txrx_powerctl(struct wx *wx, bool swi)

{

	if (swi)

		/* gpio0 is used to power on control*/

		wr32(wx, NGBE_GPIO_DR, 0);

	else

		/* gpio0 is used to power off control*/

		wr32(wx, NGBE_GPIO_DR, NGBE_GPIO_DR_0);

}



/**

 *  ngbe_reset_hw - Perform hardware reset

 *  @wx: pointer to hardware structure
@@ -59,15 +67,26 @@ static int ngbe_reset_misc(struct wx *wx) 
 **/

int ngbe_reset_hw(struct wx *wx)

{

	int status = 0;

	u32 reset = 0;

	u32 val = 0;

	int ret = 0;



	/* Call wx stop to disable tx/rx and clear interrupts */

	status = wx_stop_adapter(wx);

	if (status != 0)

		return status;

	reset = WX_MIS_RST_LAN_RST(wx->bus.func);

	wr32(wx, WX_MIS_RST, reset | rd32(wx, WX_MIS_RST));

	ret = wx_stop_adapter(wx);

	if (ret != 0)

		return ret;



	if (wx->mac_type != em_mac_type_mdi) {

		val = WX_MIS_RST_LAN_RST(wx->bus.func);

		wr32(wx, WX_MIS_RST, val | rd32(wx, WX_MIS_RST));



		ret = read_poll_timeout(rd32, val,

					!(val & (BIT(9) << wx->bus.func)), 1000,

					100000, false, wx, 0x10028);

		if (ret) {

			wx_err(wx, "Lan reset exceed s maximum times.\n");

			return ret;

		}

	}

	ngbe_reset_misc(wx);



	/* Store the permanent mac address */

drivers/net/ethernet/wangxun/ngbe/ngbe_hw.h

+1 −0
Original line number Diff line number Diff line
@@ -8,5 +8,6 @@ 
#define _NGBE_HW_H_



int ngbe_eeprom_chksum_hostif(struct wx *wx);

void ngbe_sfp_modules_txrx_powerctl(struct wx *wx, bool swi);

int ngbe_reset_hw(struct wx *wx);

#endif /* _NGBE_HW_H_ */