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e23775f20e
Following patch adds support for lwtunnel to OVS datapath. With this change OVS datapath detect lwtunnel support and make use of new APIs if available. On older kernel where the support is not there the backported tunnel modules are used. These backported tunnel devices acts as lwtunnel devices. I tried to keep backported module same as upstream for easier bug-fix backport. Since STT and LISP are not upstream OVS always needs to use respective modules from tunnel compat layer. To make it work on kernel 4.3 I have converted STT and LISP modules to lwtunnel API model. lwtunnel make use of skb-dst to pass tunnel information to the tunnel module. On older kernel this is not possible. So the in case of old kernel metadata ref is stored in OVS_CB and direct call to tunnel transmit function is made by respective tunnel vport modules. Similarly on receive side tunnel recv directly call netdev-vport-receive to pass the skb to OVS. Major backported components include: Geneve, GRE, VXLAN, ip_tunnel, udp-tunnels GRO. Signed-off-by: Pravin B Shelar <pshelar@nicira.com> Acked-by: Joe Stringer <joe@ovn.org> Acked-by: Jesse Gross <jesse@kernel.org>
41 lines
1.3 KiB
C
41 lines
1.3 KiB
C
/*
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* Copyright (c) 2007-2015 Nicira, Inc.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of version 2 of the GNU General Public
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* License as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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* 02110-1301, USA
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*/
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#ifndef VPORT_NETDEV_H
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#define VPORT_NETDEV_H 1
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#include <linux/netdevice.h>
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#include <linux/rcupdate.h>
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#include "vport.h"
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struct vport *ovs_netdev_get_vport(struct net_device *dev);
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struct vport *ovs_netdev_link(struct vport *vport, const char *name);
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void ovs_netdev_send(struct vport *vport, struct sk_buff *skb);
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void ovs_netdev_detach_dev(struct vport *);
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int __init ovs_netdev_init(void);
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void ovs_netdev_exit(void);
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void ovs_netdev_tunnel_destroy(struct vport *vport);
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void netdev_port_receive(struct sk_buff *skb, struct ip_tunnel_info *tun_info);
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#endif /* vport_netdev.h */
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