mir/openvswitch
2
0
Fork 0
mirror of https://github.com/openvswitch/ovs synced 2025-10-25 15:07:05 +00:00
Code Issues Releases Wiki Activity

datapath: Add support for lwtunnel

Browse Source 
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>
This commit is contained in:
Pravin B Shelar
2015-12-03 11:40:53 -08:00
parent 1b43cf9e68
commit e23775f20e
61 changed files with 7630 additions and 2459 deletions
Download Patch File Download Diff File Expand all files Collapse all files

22
datapath/linux/compat/dev-openvswitch.c
View File

@@ -1,6 +1,7 @@
#include <linux/if_bridge.h>
#include <linux/netdevice.h>
#include <linux/version.h>
#include <net/rtnetlink.h>
#ifndef HAVE_DEV_DISABLE_LRO
@@ -93,3 +94,24 @@ void rpl_netdev_rx_handler_unregister(struct net_device *dev)
EXPORT_SYMBOL_GPL(rpl_netdev_rx_handler_unregister);
#endif
int rpl_rtnl_delete_link(struct net_device *dev)
{
const struct rtnl_link_ops *ops;
ops = dev->rtnl_link_ops;
if (!ops || !ops->dellink)
return -EOPNOTSUPP;
#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,34)
ops->dellink(dev);
#else
{
LIST_HEAD(list_kill);
ops->dellink(dev, &list_kill);
unregister_netdevice_many(&list_kill);
}
#endif
return 0;
}