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Date: Mon, 30 Nov 2015 08:35:39 -0800
From: Tom Herbert <tom@...bertland.com>
To: Anjali Singhai Jain <anjali.singhai@...el.com>
Cc: Linux Kernel Network Developers <netdev@...r.kernel.org>,
Jesse Gross <jesse@...nel.org>,
Kiran Patil <kiran.patil@...el.com>
Subject: Re: [PATCH v1 1/6] net: Generalize udp based tunnel offload
On Mon, Nov 23, 2015 at 1:02 PM, Anjali Singhai Jain
<anjali.singhai@...el.com> wrote:
> Replace add/del ndo ops for vxlan_port with tunnel_port so that all UDP
> based tunnels can use the same ndo op. Add a parameter to pass tunnel
> type to the ndo_op.
>
Please consider using RX ntuple filters for this instead of a new ndo
op. The vxlan ndo op essentailly implements a limited filter with a
rule to match a destination UDP port and the the action of processing
the packet as vxlan. ntuple filters generalizes that so that the
filtering becomes arbitrary. We'll need the ability to filter on
4-tuple when we implement tunnels to go through firewalls or for
offloading other UDP protocols such SPUD or QUIC.
Tom
> Change all drivers to use the generalized udp tunnel offload
>
> Patch was compile tested with x86_64_defconfig.
>
> Signed-off-by: Kiran Patil <kiran.patil@...el.com>
> Signed-off-by: Anjali Singhai Jain <anjali.singhai@...el.com>
> ---
> drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c | 15 ++++++---
> drivers/net/ethernet/broadcom/bnxt/bnxt.c | 13 +++++---
> drivers/net/ethernet/emulex/benet/be_main.c | 14 +++++---
> drivers/net/ethernet/intel/fm10k/fm10k_netdev.c | 27 ++++++++++++----
> drivers/net/ethernet/intel/i40e/i40e_main.c | 41 +++++++++++++++++-------
> drivers/net/ethernet/intel/ixgbe/ixgbe_main.c | 17 +++++++---
> drivers/net/ethernet/mellanox/mlx4/en_netdev.c | 21 ++++++++----
> drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c | 17 +++++++---
> drivers/net/vxlan.c | 23 +++++++------
> include/linux/netdevice.h | 34 ++++++++++----------
> include/net/udp_tunnel.h | 6 ++++
> 11 files changed, 157 insertions(+), 71 deletions(-)
>
> diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
> index 2273576..ad2782f 100644
> --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
> +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
> @@ -47,6 +47,7 @@
> #include <net/ip.h>
> #include <net/ipv6.h>
> #include <net/tcp.h>
> +#include <net/udp_tunnel.h>
> #include <net/vxlan.h>
> #include <net/checksum.h>
> #include <net/ip6_checksum.h>
> @@ -10124,11 +10125,14 @@ static void __bnx2x_add_vxlan_port(struct bnx2x *bp, u16 port)
> }
>
> static void bnx2x_add_vxlan_port(struct net_device *netdev,
> - sa_family_t sa_family, __be16 port)
> + sa_family_t sa_family, __be16 port,
> + u32 type)
> {
> struct bnx2x *bp = netdev_priv(netdev);
> u16 t_port = ntohs(port);
>
> + if (type != UDP_TUNNEL_VXLAN)
> + return;
> __bnx2x_add_vxlan_port(bp, t_port);
> }
>
> @@ -10152,11 +10156,14 @@ static void __bnx2x_del_vxlan_port(struct bnx2x *bp, u16 port)
> }
>
> static void bnx2x_del_vxlan_port(struct net_device *netdev,
> - sa_family_t sa_family, __be16 port)
> + sa_family_t sa_family, __be16 port,
> + u32 type)
> {
> struct bnx2x *bp = netdev_priv(netdev);
> u16 t_port = ntohs(port);
>
> + if (type != UDP_TUNNEL_VXLAN)
> + return;
> __bnx2x_del_vxlan_port(bp, t_port);
> }
> #endif
> @@ -13008,8 +13015,8 @@ static const struct net_device_ops bnx2x_netdev_ops = {
> .ndo_set_vf_link_state = bnx2x_set_vf_link_state,
> .ndo_features_check = bnx2x_features_check,
> #ifdef CONFIG_BNX2X_VXLAN
> - .ndo_add_vxlan_port = bnx2x_add_vxlan_port,
> - .ndo_del_vxlan_port = bnx2x_del_vxlan_port,
> + .ndo_add_udp_tunnel_port = bnx2x_add_vxlan_port,
> + .ndo_del_udp_tunnel_port = bnx2x_del_vxlan_port,
> #endif
> };
>
> diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
> index f2d0dc9..5b96ddf 100644
> --- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c
> +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
> @@ -5421,7 +5421,7 @@ static void bnxt_cfg_ntp_filters(struct bnxt *bp)
> #endif /* CONFIG_RFS_ACCEL */
>
> static void bnxt_add_vxlan_port(struct net_device *dev, sa_family_t sa_family,
> - __be16 port)
> + __be16 port, u32 type)
> {
> struct bnxt *bp = netdev_priv(dev);
>
> @@ -5431,6 +5431,9 @@ static void bnxt_add_vxlan_port(struct net_device *dev, sa_family_t sa_family,
> if (sa_family != AF_INET6 && sa_family != AF_INET)
> return;
>
> + if (type != UDP_TUNNEL_VXLAN)
> + return;
> +
> if (bp->vxlan_port_cnt && bp->vxlan_port != port)
> return;
>
> @@ -5443,7 +5446,7 @@ static void bnxt_add_vxlan_port(struct net_device *dev, sa_family_t sa_family,
> }
>
> static void bnxt_del_vxlan_port(struct net_device *dev, sa_family_t sa_family,
> - __be16 port)
> + __be16 port, u32 type)
> {
> struct bnxt *bp = netdev_priv(dev);
>
> @@ -5453,6 +5456,8 @@ static void bnxt_del_vxlan_port(struct net_device *dev, sa_family_t sa_family,
> if (sa_family != AF_INET6 && sa_family != AF_INET)
> return;
>
> + if (type != UDP_TUNNEL_VXLAN)
> + return;
> if (bp->vxlan_port_cnt && bp->vxlan_port == port) {
> bp->vxlan_port_cnt--;
>
> @@ -5491,8 +5496,8 @@ static const struct net_device_ops bnxt_netdev_ops = {
> #ifdef CONFIG_RFS_ACCEL
> .ndo_rx_flow_steer = bnxt_rx_flow_steer,
> #endif
> - .ndo_add_vxlan_port = bnxt_add_vxlan_port,
> - .ndo_del_vxlan_port = bnxt_del_vxlan_port,
> + .ndo_add_udp_tunnel_port = bnxt_add_vxlan_port,
> + .ndo_del_udp_tunnel_port = bnxt_del_vxlan_port,
> #ifdef CONFIG_NET_RX_BUSY_POLL
> .ndo_busy_poll = bnxt_busy_poll,
> #endif
> diff --git a/drivers/net/ethernet/emulex/benet/be_main.c b/drivers/net/ethernet/emulex/benet/be_main.c
> index 4cab887..e699deca 100644
> --- a/drivers/net/ethernet/emulex/benet/be_main.c
> +++ b/drivers/net/ethernet/emulex/benet/be_main.c
> @@ -23,6 +23,7 @@
> #include <linux/aer.h>
> #include <linux/if_bridge.h>
> #include <net/busy_poll.h>
> +#include <net/udp_tunnel.h>
> #include <net/vxlan.h>
>
> MODULE_VERSION(DRV_VER);
> @@ -5175,12 +5176,15 @@ static int be_ndo_bridge_getlink(struct sk_buff *skb, u32 pid, u32 seq,
> * until after all the tunnels are removed.
> */
> static void be_add_vxlan_port(struct net_device *netdev, sa_family_t sa_family,
> - __be16 port)
> + __be16 port, u32 type)
> {
> struct be_adapter *adapter = netdev_priv(netdev);
> struct device *dev = &adapter->pdev->dev;
> int status;
>
> + if (type != UDP_TUNNEL_VXLAN)
> + return;
> +
> if (lancer_chip(adapter) || BEx_chip(adapter) || be_is_mc(adapter))
> return;
>
> @@ -5229,10 +5233,12 @@ err:
> }
>
> static void be_del_vxlan_port(struct net_device *netdev, sa_family_t sa_family,
> - __be16 port)
> + __be16 port, u32 type)
> {
> struct be_adapter *adapter = netdev_priv(netdev);
>
> + if (type != UDP_TUNNEL_VXLAN)
> + return;
> if (lancer_chip(adapter) || BEx_chip(adapter) || be_is_mc(adapter))
> return;
>
> @@ -5342,8 +5348,8 @@ static const struct net_device_ops be_netdev_ops = {
> .ndo_busy_poll = be_busy_poll,
> #endif
> #ifdef CONFIG_BE2NET_VXLAN
> - .ndo_add_vxlan_port = be_add_vxlan_port,
> - .ndo_del_vxlan_port = be_del_vxlan_port,
> + .ndo_add_udp_tunnel_port = be_add_vxlan_port,
> + .ndo_del_udp_tunnel_port = be_del_vxlan_port,
> .ndo_features_check = be_features_check,
> #endif
> .ndo_get_phys_port_id = be_get_phys_port_id,
> diff --git a/drivers/net/ethernet/intel/fm10k/fm10k_netdev.c b/drivers/net/ethernet/intel/fm10k/fm10k_netdev.c
> index 639263d..447d5e6 100644
> --- a/drivers/net/ethernet/intel/fm10k/fm10k_netdev.c
> +++ b/drivers/net/ethernet/intel/fm10k/fm10k_netdev.c
> @@ -21,6 +21,7 @@
> #include "fm10k.h"
> #include <linux/vmalloc.h>
> #if IS_ENABLED(CONFIG_FM10K_VXLAN)
> +#include <net/udp_tunnel.h>
> #include <net/vxlan.h>
> #endif /* CONFIG_FM10K_VXLAN */
>
> @@ -439,18 +440,24 @@ static void fm10k_restore_vxlan_port(struct fm10k_intfc *interface)
> * @netdev: network interface device structure
> * @sa_family: Address family of new port
> * @port: port number used for VXLAN
> + * @type: Tunnel type
> *
> - * This funciton is called when a new VXLAN interface has added a new port
> + * This function is called when a new VXLAN interface has added a new port
> * number to the range that is currently in use for VXLAN. The new port
> * number is always added to the tail so that the port number list should
> * match the order in which the ports were allocated. The head of the list
> * is always used as the VXLAN port number for offloads.
> **/
> static void fm10k_add_vxlan_port(struct net_device *dev,
> - sa_family_t sa_family, __be16 port) {
> + sa_family_t sa_family, __be16 port,
> + u32 type) {
> +#if IS_ENABLED(CONFIG_FM10K_VXLAN)
> struct fm10k_intfc *interface = netdev_priv(dev);
> struct fm10k_vxlan_port *vxlan_port;
>
> + if (type != UDP_TUNNEL_VXLAN)
> + return;
> +
> /* only the PF supports configuring tunnels */
> if (interface->hw.mac.type != fm10k_mac_pf)
> return;
> @@ -476,6 +483,7 @@ insert_tail:
> list_add_tail(&vxlan_port->list, &interface->vxlan_port);
>
> fm10k_restore_vxlan_port(interface);
> +#endif
> }
>
> /**
> @@ -483,17 +491,23 @@ insert_tail:
> * @netdev: network interface device structure
> * @sa_family: Address family of freed port
> * @port: port number used for VXLAN
> + * @type: Tunnel type
> *
> - * This funciton is called when a new VXLAN interface has freed a port
> + * This function is called when a new VXLAN interface has freed a port
> * number from the range that is currently in use for VXLAN. The freed
> * port is removed from the list and the new head is used to determine
> * the port number for offloads.
> **/
> static void fm10k_del_vxlan_port(struct net_device *dev,
> - sa_family_t sa_family, __be16 port) {
> + sa_family_t sa_family, __be16 port,
> + u32 type) {
> +#if IS_ENABLED(CONFIG_FM10K_VXLAN)
> struct fm10k_intfc *interface = netdev_priv(dev);
> struct fm10k_vxlan_port *vxlan_port;
>
> + if (type != UDP_TUNNEL_VXLAN)
> + return;
> +
> if (interface->hw.mac.type != fm10k_mac_pf)
> return;
>
> @@ -508,6 +522,7 @@ static void fm10k_del_vxlan_port(struct net_device *dev,
> }
>
> fm10k_restore_vxlan_port(interface);
> +#endif
> }
>
> /**
> @@ -1373,8 +1388,8 @@ static const struct net_device_ops fm10k_netdev_ops = {
> .ndo_set_vf_vlan = fm10k_ndo_set_vf_vlan,
> .ndo_set_vf_rate = fm10k_ndo_set_vf_bw,
> .ndo_get_vf_config = fm10k_ndo_get_vf_config,
> - .ndo_add_vxlan_port = fm10k_add_vxlan_port,
> - .ndo_del_vxlan_port = fm10k_del_vxlan_port,
> + .ndo_add_udp_tunnel_port = fm10k_add_vxlan_port,
> + .ndo_del_udp_tunnel_port = fm10k_del_vxlan_port,
> .ndo_do_ioctl = fm10k_ioctl,
> .ndo_dfwd_add_station = fm10k_dfwd_add_station,
> .ndo_dfwd_del_station = fm10k_dfwd_del_station,
> diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c
> index b825f97..520e34e 100644
> --- a/drivers/net/ethernet/intel/i40e/i40e_main.c
> +++ b/drivers/net/ethernet/intel/i40e/i40e_main.c
> @@ -30,6 +30,7 @@
> #ifdef CONFIG_I40E_VXLAN
> #include <net/vxlan.h>
> #endif
> +#include <net/udp_tunnel.h>
>
> const char i40e_driver_name[] = "i40e";
> static const char i40e_driver_string[] =
> @@ -8296,13 +8297,18 @@ static u8 i40e_get_vxlan_port_idx(struct i40e_pf *pf, __be16 port)
> }
>
> /**
> - * i40e_add_vxlan_port - Get notifications about VXLAN ports that come up
> + * i40e_add_tunnel_port - Get notifications about UDP tunnel ports that come up
> * @netdev: This physical port's netdev
> - * @sa_family: Socket Family that VXLAN is notifying us about
> - * @port: New UDP port number that VXLAN started listening to
> + * @sa_family: Socket Family that tunnel netdev is associated with
> + * @port: New UDP port number that tunnel started listening to
> + * @type: Tunnel Type
> + *
> + * This function modifies a common data structure for all udp_tunnels
> + * hence it is expected that it is called under a common lock.
> **/
> -static void i40e_add_vxlan_port(struct net_device *netdev,
> - sa_family_t sa_family, __be16 port)
> +static void i40e_add_tunnel_port(struct net_device *netdev,
> + sa_family_t sa_family, __be16 port,
> + u32 type)
> {
> struct i40e_netdev_priv *np = netdev_priv(netdev);
> struct i40e_vsi *vsi = np->vsi;
> @@ -8310,6 +8316,9 @@ static void i40e_add_vxlan_port(struct net_device *netdev,
> u8 next_idx;
> u8 idx;
>
> + if (type != UDP_TUNNEL_VXLAN)
> + return;
> +
> if (sa_family == AF_INET6)
> return;
>
> @@ -8338,19 +8347,27 @@ static void i40e_add_vxlan_port(struct net_device *netdev,
> }
>
> /**
> - * i40e_del_vxlan_port - Get notifications about VXLAN ports that go away
> + * i40e_del_tunnel_port - Get notifications about UDP tunnel ports that go away
> * @netdev: This physical port's netdev
> - * @sa_family: Socket Family that VXLAN is notifying us about
> - * @port: UDP port number that VXLAN stopped listening to
> + * @sa_family: Socket Family that tunnel netdev is associated with
> + * @port: UDP port number that tunnel stopped listening to
> + * @type: Tunnel Type
> + *
> + * This function modifies a common data structure for all udp_tunnels
> + * hence it is expected that it is called under common lock.
> **/
> -static void i40e_del_vxlan_port(struct net_device *netdev,
> - sa_family_t sa_family, __be16 port)
> +static void i40e_del_tunnel_port(struct net_device *netdev,
> + sa_family_t sa_family, __be16 port,
> + u32 type)
> {
> struct i40e_netdev_priv *np = netdev_priv(netdev);
> struct i40e_vsi *vsi = np->vsi;
> struct i40e_pf *pf = vsi->back;
> u8 idx;
>
> + if (type != UDP_TUNNEL_VXLAN)
> + return;
> +
> if (sa_family == AF_INET6)
> return;
>
> @@ -8596,8 +8613,8 @@ static const struct net_device_ops i40e_netdev_ops = {
> .ndo_set_vf_link_state = i40e_ndo_set_vf_link_state,
> .ndo_set_vf_spoofchk = i40e_ndo_set_vf_spoofchk,
> #ifdef CONFIG_I40E_VXLAN
> - .ndo_add_vxlan_port = i40e_add_vxlan_port,
> - .ndo_del_vxlan_port = i40e_del_vxlan_port,
> + .ndo_add_udp_tunnel_port = i40e_add_tunnel_port,
> + .ndo_del_udp_tunnel_port = i40e_del_tunnel_port,
> #endif
> .ndo_get_phys_port_id = i40e_get_phys_port_id,
> .ndo_fdb_add = i40e_ndo_fdb_add,
> diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
> index 4089d77..76ccc77 100644
> --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
> +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
> @@ -50,6 +50,7 @@
> #include <linux/if_bridge.h>
> #include <linux/prefetch.h>
> #include <scsi/fc/fc_fcoe.h>
> +#include <net/udp_tunnel.h>
> #include <net/vxlan.h>
>
> #ifdef CONFIG_OF
> @@ -8088,14 +8089,18 @@ static int ixgbe_set_features(struct net_device *netdev,
> * @dev: The port's netdev
> * @sa_family: Socket Family that VXLAN is notifiying us about
> * @port: New UDP port number that VXLAN started listening to
> + * @type: Tunnel type
> **/
> static void ixgbe_add_vxlan_port(struct net_device *dev, sa_family_t sa_family,
> - __be16 port)
> + __be16 port, u32 type)
> {
> struct ixgbe_adapter *adapter = netdev_priv(dev);
> struct ixgbe_hw *hw = &adapter->hw;
> u16 new_port = ntohs(port);
>
> + if (type != UDP_TUNNEL_VXLAN)
> + return;
> +
> if (!(adapter->flags & IXGBE_FLAG_VXLAN_OFFLOAD_CAPABLE))
> return;
>
> @@ -8121,13 +8126,17 @@ static void ixgbe_add_vxlan_port(struct net_device *dev, sa_family_t sa_family,
> * @dev: The port's netdev
> * @sa_family: Socket Family that VXLAN is notifying us about
> * @port: UDP port number that VXLAN stopped listening to
> + * @type: Tunnel type
> **/
> static void ixgbe_del_vxlan_port(struct net_device *dev, sa_family_t sa_family,
> - __be16 port)
> + __be16 port, u32 type)
> {
> struct ixgbe_adapter *adapter = netdev_priv(dev);
> u16 new_port = ntohs(port);
>
> + if (type != UDP_TUNNEL_VXLAN)
> + return;
> +
> if (!(adapter->flags & IXGBE_FLAG_VXLAN_OFFLOAD_CAPABLE))
> return;
>
> @@ -8436,8 +8445,8 @@ static const struct net_device_ops ixgbe_netdev_ops = {
> .ndo_dfwd_add_station = ixgbe_fwd_add,
> .ndo_dfwd_del_station = ixgbe_fwd_del,
> #ifdef CONFIG_IXGBE_VXLAN
> - .ndo_add_vxlan_port = ixgbe_add_vxlan_port,
> - .ndo_del_vxlan_port = ixgbe_del_vxlan_port,
> + .ndo_add_udp_tunnel_port = ixgbe_add_vxlan_port,
> + .ndo_del_udp_tunnel_port = ixgbe_del_vxlan_port,
> #endif /* CONFIG_IXGBE_VXLAN */
> .ndo_features_check = ixgbe_features_check,
> };
> diff --git a/drivers/net/ethernet/mellanox/mlx4/en_netdev.c b/drivers/net/ethernet/mellanox/mlx4/en_netdev.c
> index 659209f..2cb19c7 100644
> --- a/drivers/net/ethernet/mellanox/mlx4/en_netdev.c
> +++ b/drivers/net/ethernet/mellanox/mlx4/en_netdev.c
> @@ -39,6 +39,7 @@
> #include <linux/hash.h>
> #include <net/ip.h>
> #include <net/busy_poll.h>
> +#include <net/udp_tunnel.h>
> #include <net/vxlan.h>
>
> #include <linux/mlx4/driver.h>
> @@ -2365,11 +2366,15 @@ static void mlx4_en_del_vxlan_offloads(struct work_struct *work)
> }
>
> static void mlx4_en_add_vxlan_port(struct net_device *dev,
> - sa_family_t sa_family, __be16 port)
> + sa_family_t sa_family, __be16 port,
> + u32 type)
> {
> struct mlx4_en_priv *priv = netdev_priv(dev);
> __be16 current_port;
>
> + if (type != UDP_TUNNEL_VXLAN)
> + return;
> +
> if (priv->mdev->dev->caps.tunnel_offload_mode != MLX4_TUNNEL_OFFLOAD_MODE_VXLAN)
> return;
>
> @@ -2388,11 +2393,15 @@ static void mlx4_en_add_vxlan_port(struct net_device *dev,
> }
>
> static void mlx4_en_del_vxlan_port(struct net_device *dev,
> - sa_family_t sa_family, __be16 port)
> + sa_family_t sa_family, __be16 port,
> + u32 type)
> {
> struct mlx4_en_priv *priv = netdev_priv(dev);
> __be16 current_port;
>
> + if (type != UDP_TUNNEL_VXLAN)
> + return;
> +
> if (priv->mdev->dev->caps.tunnel_offload_mode != MLX4_TUNNEL_OFFLOAD_MODE_VXLAN)
> return;
>
> @@ -2469,8 +2478,8 @@ static const struct net_device_ops mlx4_netdev_ops = {
> #endif
> .ndo_get_phys_port_id = mlx4_en_get_phys_port_id,
> #ifdef CONFIG_MLX4_EN_VXLAN
> - .ndo_add_vxlan_port = mlx4_en_add_vxlan_port,
> - .ndo_del_vxlan_port = mlx4_en_del_vxlan_port,
> + .ndo_add_udp_tunnel_port = mlx4_en_add_vxlan_port,
> + .ndo_del_udp_tunnel_port = mlx4_en_del_vxlan_port,
> .ndo_features_check = mlx4_en_features_check,
> #endif
> .ndo_set_tx_maxrate = mlx4_en_set_tx_maxrate,
> @@ -2507,8 +2516,8 @@ static const struct net_device_ops mlx4_netdev_ops_master = {
> #endif
> .ndo_get_phys_port_id = mlx4_en_get_phys_port_id,
> #ifdef CONFIG_MLX4_EN_VXLAN
> - .ndo_add_vxlan_port = mlx4_en_add_vxlan_port,
> - .ndo_del_vxlan_port = mlx4_en_del_vxlan_port,
> + .ndo_add_udp_tunnel_port = mlx4_en_add_vxlan_port,
> + .ndo_del_udp_tunnel_port = mlx4_en_del_vxlan_port,
> .ndo_features_check = mlx4_en_features_check,
> #endif
> .ndo_set_tx_maxrate = mlx4_en_set_tx_maxrate,
> diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c
> index 1205f6f..aa38dbb 100644
> --- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c
> +++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c
> @@ -17,6 +17,7 @@
> #include <linux/log2.h>
> #include <linux/pci.h>
> #ifdef CONFIG_QLCNIC_VXLAN
> +#include <net/udp_tunnel.h>
> #include <net/vxlan.h>
> #endif
>
> @@ -476,11 +477,15 @@ static int qlcnic_get_phys_port_id(struct net_device *netdev,
>
> #ifdef CONFIG_QLCNIC_VXLAN
> static void qlcnic_add_vxlan_port(struct net_device *netdev,
> - sa_family_t sa_family, __be16 port)
> + sa_family_t sa_family, __be16 port,
> + u32 type)
> {
> struct qlcnic_adapter *adapter = netdev_priv(netdev);
> struct qlcnic_hardware_context *ahw = adapter->ahw;
>
> + if (type != UDP_TUNNEL_VXLAN)
> + return;
> +
> /* Adapter supports only one VXLAN port. Use very first port
> * for enabling offload
> */
> @@ -498,11 +503,15 @@ static void qlcnic_add_vxlan_port(struct net_device *netdev,
> }
>
> static void qlcnic_del_vxlan_port(struct net_device *netdev,
> - sa_family_t sa_family, __be16 port)
> + sa_family_t sa_family, __be16 port,
> + u32 type)
> {
> struct qlcnic_adapter *adapter = netdev_priv(netdev);
> struct qlcnic_hardware_context *ahw = adapter->ahw;
>
> + if (type != UDP_TUNNEL_VXLAN)
> + return;
> +
> if (!qlcnic_encap_rx_offload(adapter) || !ahw->vxlan_port_count ||
> (ahw->vxlan_port != ntohs(port)))
> return;
> @@ -540,8 +549,8 @@ static const struct net_device_ops qlcnic_netdev_ops = {
> .ndo_fdb_dump = qlcnic_fdb_dump,
> .ndo_get_phys_port_id = qlcnic_get_phys_port_id,
> #ifdef CONFIG_QLCNIC_VXLAN
> - .ndo_add_vxlan_port = qlcnic_add_vxlan_port,
> - .ndo_del_vxlan_port = qlcnic_del_vxlan_port,
> + .ndo_add_udp_tunnel_port = qlcnic_add_vxlan_port,
> + .ndo_del_udp_tunnel_port = qlcnic_del_vxlan_port,
> .ndo_features_check = qlcnic_features_check,
> #endif
> #ifdef CONFIG_NET_POLL_CONTROLLER
> diff --git a/drivers/net/vxlan.c b/drivers/net/vxlan.c
> index 6369a57..5490629 100644
> --- a/drivers/net/vxlan.c
> +++ b/drivers/net/vxlan.c
> @@ -628,9 +628,10 @@ static void vxlan_notify_add_rx_port(struct vxlan_sock *vs)
>
> rcu_read_lock();
> for_each_netdev_rcu(net, dev) {
> - if (dev->netdev_ops->ndo_add_vxlan_port)
> - dev->netdev_ops->ndo_add_vxlan_port(dev, sa_family,
> - port);
> + if (dev->netdev_ops->ndo_add_udp_tunnel_port)
> + dev->netdev_ops->ndo_add_udp_tunnel_port(dev, sa_family,
> + port,
> + UDP_TUNNEL_VXLAN);
> }
> rcu_read_unlock();
> }
> @@ -646,9 +647,10 @@ static void vxlan_notify_del_rx_port(struct vxlan_sock *vs)
>
> rcu_read_lock();
> for_each_netdev_rcu(net, dev) {
> - if (dev->netdev_ops->ndo_del_vxlan_port)
> - dev->netdev_ops->ndo_del_vxlan_port(dev, sa_family,
> - port);
> + if (dev->netdev_ops->ndo_del_udp_tunnel_port)
> + dev->netdev_ops->ndo_del_udp_tunnel_port(dev, sa_family,
> + port,
> + UDP_TUNNEL_VXLAN);
> }
> rcu_read_unlock();
>
> @@ -2422,9 +2424,9 @@ static struct device_type vxlan_type = {
> .name = "vxlan",
> };
>
> -/* Calls the ndo_add_vxlan_port of the caller in order to
> +/* Calls the ndo_add_udp_tunnel_port of the caller in order to
> * supply the listening VXLAN udp ports. Callers are expected
> - * to implement the ndo_add_vxlan_port.
> + * to implement the ndo_add_tunnel_port.
> */
> void vxlan_get_rx_port(struct net_device *dev)
> {
> @@ -2440,8 +2442,9 @@ void vxlan_get_rx_port(struct net_device *dev)
> hlist_for_each_entry_rcu(vs, &vn->sock_list[i], hlist) {
> port = inet_sk(vs->sock->sk)->inet_sport;
> sa_family = vxlan_get_sk_family(vs);
> - dev->netdev_ops->ndo_add_vxlan_port(dev, sa_family,
> - port);
> + dev->netdev_ops->ndo_add_udp_tunnel_port(dev, sa_family,
> + port,
> + UDP_TUNNEL_VXLAN);
> }
> }
> spin_unlock(&vn->sock_lock);
> diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
> index 7d2d1d7..eaecc42 100644
> --- a/include/linux/netdevice.h
> +++ b/include/linux/netdevice.h
> @@ -1004,18 +1004,19 @@ typedef u16 (*select_queue_fallback_t)(struct net_device *dev,
> * not implement this, it is assumed that the hw is not able to have
> * multiple net devices on single physical port.
> *
> - * void (*ndo_add_vxlan_port)(struct net_device *dev,
> - * sa_family_t sa_family, __be16 port);
> - * Called by vxlan to notiy a driver about the UDP port and socket
> - * address family that vxlan is listnening to. It is called only when
> - * a new port starts listening. The operation is protected by the
> - * vxlan_net->sock_lock.
> - *
> - * void (*ndo_del_vxlan_port)(struct net_device *dev,
> - * sa_family_t sa_family, __be16 port);
> - * Called by vxlan to notify the driver about a UDP port and socket
> - * address family that vxlan is not listening to anymore. The operation
> - * is protected by the vxlan_net->sock_lock.
> + * void (*ndo_add_udp_tunnel_port)(struct net_device *dev,
> + * sa_family_t sa_family, __be16 port, u32 type);
> + * Called by UDP based tunnel modules to notify a driver about a UDP
> + * port and socket address family that the tunnel is listening to. It is
> + * called only when a new port starts listening. The operation is
> + * protected by udp_offload_lock across all udp based tunnels.
> + *
> + * void (*ndo_del_udp_tunnel_port)(struct net_device *dev,
> + * sa_family_t sa_family, __be16 port, u32 type);
> + * Called by UDP based tunnel modules to notify the driver about a UDP port
> + * and socket address family that tunnel is not listening to anymore.
> + * The operation is protected by udp_offload_lock across all udp based
> + * tunnels.
> *
> * void* (*ndo_dfwd_add_station)(struct net_device *pdev,
> * struct net_device *dev)
> @@ -1209,13 +1210,12 @@ struct net_device_ops {
> struct netdev_phys_item_id *ppid);
> int (*ndo_get_phys_port_name)(struct net_device *dev,
> char *name, size_t len);
> - void (*ndo_add_vxlan_port)(struct net_device *dev,
> + void (*ndo_add_udp_tunnel_port)(struct net_device *dev,
> sa_family_t sa_family,
> - __be16 port);
> - void (*ndo_del_vxlan_port)(struct net_device *dev,
> + __be16 port, u32 type);
> + void (*ndo_del_udp_tunnel_port)(struct net_device *dev,
> sa_family_t sa_family,
> - __be16 port);
> -
> + __be16 port, u32 type);
> void* (*ndo_dfwd_add_station)(struct net_device *pdev,
> struct net_device *dev);
> void (*ndo_dfwd_del_station)(struct net_device *pdev,
> diff --git a/include/net/udp_tunnel.h b/include/net/udp_tunnel.h
> index cb2f89f..72415aa 100644
> --- a/include/net/udp_tunnel.h
> +++ b/include/net/udp_tunnel.h
> @@ -9,6 +9,12 @@
> #include <net/addrconf.h>
> #endif
>
> +enum udp_tunnel_type {
> + UDP_TUNNEL_UNSPEC,
> + UDP_TUNNEL_VXLAN,
> + UDP_TUNNEL_GENEVE,
> +};
> +
> struct udp_port_cfg {
> u8 family;
>
> --
> 1.8.1.4
>
> --
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