Commit f294516f authored by Jiawen Wu's avatar Jiawen Wu Committed by Jakub Kicinski
Browse files

net: txgbe: Support to set UDP tunnel port 



Tunnel types VXLAN/VXLAN_GPE/GENEVE are supported for txgbe devices. The
hardware supports to set only one port for each tunnel type.

Signed-off-by: default avatarJiawen Wu <jiawenwu@trustnetic.com>
Link: https://patch.msgid.link/20250421022956.508018-2-jiawenwu@trustnetic.com


Signed-off-by: default avatarJakub Kicinski <kuba@kernel.org>
parent 84ee6e50

drivers/net/ethernet/wangxun/txgbe/txgbe_main.c

+36 −0
Original line number Diff line number Diff line
@@ -8,6 +8,7 @@ 
#include <linux/string.h>

#include <linux/etherdevice.h>

#include <linux/phylink.h>

#include <net/udp_tunnel.h>

#include <net/ip.h>

#include <linux/if_vlan.h>
@@ -537,6 +538,39 @@ void txgbe_do_reset(struct net_device *netdev) 
		txgbe_reset(wx);

}



static int txgbe_udp_tunnel_sync(struct net_device *dev, unsigned int table)

{

	struct wx *wx = netdev_priv(dev);

	struct udp_tunnel_info ti;



	udp_tunnel_nic_get_port(dev, table, 0, &ti);

	switch (ti.type) {

	case UDP_TUNNEL_TYPE_VXLAN:

		wr32(wx, TXGBE_CFG_VXLAN, ntohs(ti.port));

		break;

	case UDP_TUNNEL_TYPE_VXLAN_GPE:

		wr32(wx, TXGBE_CFG_VXLAN_GPE, ntohs(ti.port));

		break;

	case UDP_TUNNEL_TYPE_GENEVE:

		wr32(wx, TXGBE_CFG_GENEVE, ntohs(ti.port));

		break;

	default:

		break;

	}



	return 0;

}



static const struct udp_tunnel_nic_info txgbe_udp_tunnels = {

	.sync_table	= txgbe_udp_tunnel_sync,

	.flags		= UDP_TUNNEL_NIC_INFO_OPEN_ONLY,

	.tables		= {

		{ .n_entries = 1, .tunnel_types = UDP_TUNNEL_TYPE_VXLAN, },

		{ .n_entries = 1, .tunnel_types = UDP_TUNNEL_TYPE_VXLAN_GPE, },

		{ .n_entries = 1, .tunnel_types = UDP_TUNNEL_TYPE_GENEVE, },

	},

};



static const struct net_device_ops txgbe_netdev_ops = {

	.ndo_open               = txgbe_open,

	.ndo_stop               = txgbe_close,
@@ -632,6 +666,7 @@ static int txgbe_probe(struct pci_dev *pdev, 
	wx->driver_name = txgbe_driver_name;

	txgbe_set_ethtool_ops(netdev);

	netdev->netdev_ops = &txgbe_netdev_ops;

	netdev->udp_tunnel_nic_info = &txgbe_udp_tunnels;



	/* setup the private structure */

	err = txgbe_sw_init(wx);
@@ -677,6 +712,7 @@ static int txgbe_probe(struct pci_dev *pdev, 
	netdev->features |= NETIF_F_HIGHDMA;

	netdev->hw_features |= NETIF_F_GRO;

	netdev->features |= NETIF_F_GRO;

	netdev->features |= NETIF_F_RX_UDP_TUNNEL_PORT;



	netdev->priv_flags |= IFF_UNICAST_FLT;

	netdev->priv_flags |= IFF_SUPP_NOFCS;

drivers/net/ethernet/wangxun/txgbe/txgbe_type.h

+3 −0
Original line number Diff line number Diff line
@@ -88,6 +88,9 @@ 
/* Port cfg registers */

#define TXGBE_CFG_PORT_ST                       0x14404

#define TXGBE_CFG_PORT_ST_LINK_UP               BIT(0)

#define TXGBE_CFG_VXLAN                         0x14410

#define TXGBE_CFG_VXLAN_GPE                     0x14414

#define TXGBE_CFG_GENEVE                        0x14418



/* I2C registers */

#define TXGBE_I2C_BASE                          0x14900