linux-toradex.git/include/net/udp_tunnel.h, branch v4.9-rc2

vxlan: Add new UDP encapsulation offload type for VXLAN-GPE

2016-06-18T03:23:32+00:00

The fact is VXLAN with Generic Protocol Extensions cannot be supported by
the same hardware parsers that support VXLAN.  The protocol extensions
allow for things like a Next Protocol field which in turn allows for things
other than Ethernet to be passed over the tunnel.  Most existing parsers
will not know how to interpret this.

To resolve this I am giving VXLAN-GPE its own UDP encapsulation offload
type.  This way hardware that does support GPE can simply add this type to
the switch statement for VXLAN, and if they don't support it then this will
fix any issues where headers might be interpreted incorrectly.

Signed-off-by: Alexander Duyck 
Acked-by: Hannes Frederic Sowa 
Signed-off-by: David S. Miller

net: Merge VXLAN and GENEVE push notifiers into a single notifier

2016-06-18T03:23:29+00:00

This patch merges the notifiers for VXLAN and GENEVE into a single UDP
tunnel notifier.  The idea is that we will want to only have to make one
notifier call to receive the list of ports for VXLAN and GENEVE tunnels
that need to be offloaded.

In addition we add a new set of ndo functions named ndo_udp_tunnel_add and
ndo_udp_tunnel_del that are meant to allow us to track the tunnel meta-data
such as port and address family as tunnels are added and removed.  The
tunnel meta-data is now transported in a structure named udp_tunnel_info
which for now carries the type, address family, and port number.  In the
future this could be updated so that we can include a tuple of values
including things such as the destination IP address and other fields.

I also ended up going with a naming scheme that consisted of using the
prefix udp_tunnel on function names.  I applied this to the notifier and
ndo ops as well so that it hopefully points to the fact that these are
primarily used in the udp_tunnel functions.

Signed-off-by: Alexander Duyck 
Acked-by: Hannes Frederic Sowa 
Signed-off-by: David S. Miller

net: Combine GENEVE and VXLAN port notifiers into single functions

2016-06-18T03:23:29+00:00

This patch merges the GENEVE and VXLAN code so that both functions pass
through a shared code path.  This way we can start the effort of using a
single function on the network device drivers to handle both of these
tunnel types.

Signed-off-by: Alexander Duyck 
Acked-by: Hannes Frederic Sowa 
Signed-off-by: David S. Miller

vxlan/geneve: Include udp_tunnel.h in vxlan/geneve.h and fixup includes

2016-06-18T03:23:29+00:00

This patch makes it so that we add udp_tunnel.h to vxlan.h and geneve.h
header files.  This is useful as I plan to move the generic handlers for
the port offloads into the udp_tunnel header file and leave the vxlan and
geneve headers to be a bit more protocol specific.

I also went through and cleaned out a number of redundant includes that
where in the .h and .c files for these drivers.

Signed-off-by: Alexander Duyck 
Acked-by: Hannes Frederic Sowa 
Signed-off-by: David S. Miller

Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net

2016-05-09T19:59:24+00:00

In netdevice.h we removed the structure in net-next that is being
changes in 'net'.  In macsec.c and rtnetlink.c we have overlaps
between fixes in 'net' and the u64 attribute changes in 'net-next'.

The mlx5 conflicts have to do with vxlan support dependencies.

Signed-off-by: David S. Miller

udp_tunnel: Remove redundant udp_tunnel_gro_complete().

2016-05-06T22:25:26+00:00

The setting of the UDP tunnel GSO type is already performed by
udp[46]_gro_complete().

Signed-off-by: Jarno Rajahalme 
Signed-off-by: David S. Miller

ip_tunnel_core: iptunnel_handle_offloads returns int and doesn't free skb

2016-04-16T23:09:13+00:00

This patch updates the IP tunnel core function iptunnel_handle_offloads so
that we return an int and do not free the skb inside the function.  This
actually allows us to clean up several paths in several tunnels so that we
can free the skb at one point in the path without having to have a
secondary path if we are supporting tunnel offloads.

In addition it should resolve some double-free issues I have found in the
tunnels paths as I believe it is possible for us to end up triggering such
an event in the case of fou or gue.

Signed-off-by: Alexander Duyck 
Signed-off-by: David S. Miller

udp: Add socket based GRO and config

2016-04-07T20:53:29+00:00

Add gro_receive and  gro_complete to struct udp_tunnel_sock_cfg.

Signed-off-by: Tom Herbert 
Signed-off-by: David S. Miller

ip_tunnel: add support for setting flow label via collect metadata

2016-03-11T20:14:26+00:00

This patch extends udp_tunnel6_xmit_skb() to pass in the IPv6 flow label
from call sites. Currently, there's no such option and it's always set to
zero when writing ip6_flow_hdr(). Add a label member to ip_tunnel_key, so
that flow-based tunnels via collect metadata frontends can make use of it.
vxlan and geneve will be converted to add flow label support separately.

Signed-off-by: Daniel Borkmann 
Signed-off-by: David S. Miller

net: ip_tunnel: remove 'csum_help' argument to iptunnel_handle_offloads

2016-02-12T10:52:16+00:00

All users now pass false, so we can remove it, and remove the code that
 was conditional upon it.

Signed-off-by: Edward Cree 
Signed-off-by: David S. Miller