Anything less than 3.10 isn't supported since a couple of releases ago
so remove the dead code.
Signed-off-by: Greg Rose <gvrose8192@gmail.com>
Signed-off-by: Ben Pfaff <blp@ovn.org>
Acked-by: William Tu <u9012063@gmail.com>
This basically backport commit:
commit 179bc67f69b6cb53ad68cfdec5a917c2a2248355
Author: Edward Cree <ecree@solarflare.com>
Date: Thu Feb 11 20:48:04 2016 +0000
net: local checksum offload for encapsulation
The arithmetic properties of the ones-complement checksum mean that a
correctly checksummed inner packet, including its checksum, has a ones
complement sum depending only on whatever value was used to initialise
the checksum field before checksumming (in the case of TCP and UDP,
this is the ones complement sum of the pseudo header, complemented).
Consequently, if we are going to offload the inner checksum with
CHECKSUM_PARTIAL, we can compute the outer checksum based only on the
packed data not covered by the inner checksum, and the initial value of
the inner checksum field.
Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Pravin B Shelar <pshelar@ovn.org>
Acked-by: Jesse Gross <jesse@kernel.org>
Following patch simplifies UDP-checksum routine by unconditionally
using checksum offload for non GSO packets. We might get some
performance improvement due to code simplification.
Signed-off-by: Pravin B Shelar <pshelar@ovn.org>
Acked-by: Jesse Gross <jesse@kernel.org>
Few function can be compiled out for non GSO case. This
patch make it bit cleaner to understand GSO compat code.
Signed-off-by: Pravin B Shelar <pshelar@ovn.org>
Acked-by: Jesse Gross <jesse@kernel.org>
In upstream linux kernel networking stack udp_set_csum() is called
with only udp header applied but in case of compat layer it can
be called with IP header. So following patch take the offset into
account.
Signed-off-by: Pravin B Shelar <pshelar@ovn.org>
Acked-by: Jesse Gross <jesse@kernel.org>
Most of changes are related to ip-fragment API and genetlink
API changes.
Signed-off-by: Pravin B Shelar <pshelar@ovn.org>
Acked-by: Jesse Gross <jesse@kernel.org>
Next patch adds support for IPV6 Geneve and VXLAN, But support for UDP
segmentation is available on all supported kernel.
Following patch adds support for UDP tunnels over IPv6 for such kernels.
Signed-off-by: Pravin B Shelar <pshelar@ovn.org>
Acked-by: Jesse Gross <jesse@kernel.org>
Upstream commit:
commit 039f50629b7f860f36644ed1f34b27da9aa62f43
Author: Pravin B Shelar <pshelar@ovn.org>
ip_tunnel: Move stats update to iptunnel_xmit()
By moving stats update into iptunnel_xmit(), we can simplify
iptunnel_xmit() usage. With this change there is no need to
call another function (iptunnel_xmit_stats()) to update stats
in tunnel xmit code path.
Signed-off-by: Pravin B Shelar <pshelar@ovn.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Pravin B Shelar <pshelar@ovn.org>
Acked-by: Jesse Gross <jesse@kernel.org>
Upstream commit:
commit 38fd2af24fcfda93f9fea3e53f26e48775ae9e09
Author: Tom Herbert <tom@herbertland.com>
udp: Add socket based GRO and config
Add gro_receive and gro_complete to struct udp_tunnel_sock_cfg.
Signed-off-by: Tom Herbert <tom@herbertland.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Pravin B Shelar <pshelar@ovn.org>
Acked-by: Jesse Gross <jesse@kernel.org>
Update udp_tunnel6_xmit_skb(). Specificaly changes are
related to setting ipv6 label.
Upstream commit:
commit 134611446dc657e1bbc73ca0e4e6b599df687db0
Author: Daniel Borkmann <daniel@iogearbox.net>
ip_tunnel: add support for setting flow label via collect metadata
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 <daniel@iogearbox.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Pravin B Shelar <pshelar@ovn.org>
Acked-by: Jesse Gross <jesse@kernel.org>
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>
When the UDP tunnel compat code was written, it backported some
functions that were slated to be in the next kernel release, then
called 3.20. However, this was ultimately released as 4.0 instead.
Signed-off-by: Jesse Gross <jesse@nicira.com>
Reviewed-by: Simon Horman <simon.horman@netronome.com>
With the latest change of separating vports into their own modules,
it is necessary to export all public functions in linux/compat/
directory. Also, we should prefix functions which replace the
upstream ones with 'rpl_' and others with 'ovs_'. This will prevent
the linker error when vport modules use those functions in the future.
e.g., the to be merged vport-stt module will use the flex_array_*
functions which are not currently exported.
Co-authored-by: Tuan Nguyen <tuan.nguyen@veriksystems.com>
Signed-off-by: Alex Wang <alexw@nicira.com>
Acked-by: Jesse Gross <jesse@nicira.com>
Upstream commit:
The internal and netdev vport remain part of openvswitch.ko. Encap
vports including vxlan, gre, and geneve can be built as separate
modules and are loaded on demand. Modules can be unloaded after use.
Datapath ports keep a reference to the vport module during their
lifetime.
Allows to remove the error prone maintenance of the global list
vport_ops_list.
Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
Also folds in the follow-up commits 9ba559d9ca3 to turned the non-GPL
symbol exports to GPL exports, and fa2d8ff4e35 which fixes a module
reference release bug.
Exports various backwards compat functions linked into the main
openvswitch module as GPL symbols to ensure vport modules can use them.
Some fiddling with the Makefile was needed to work around the fact
that Makefile variables can't contain '-' characters needed to define
'vport-xxx' module sources. Also, Kbuild complains heavily if a
$(module)-y = $(module).o is defined which is actually backed with a .c
file of the same name. Therefore, a new $(build_multi_modules) variable
is defined which lists all module which consist of more than one source
file.
Upstream: 62b9c8d0372 ("ovs: Turn vports with dependencies into separate modules")
Upstream: 9ba559d9ca3 ("openvswitch: Export symbols as GPL symbols.")
Upstream: fa2d8ff4e35 ("openvswitch: Return vport module ref before destruction")
Signed-off-by: Thomas Graf <tgraf@noironetworks.com>
Acked-by: Pravin B Shelar <pshelar@nicira.com>
Upstream commit:
udp: Do not require sock in udp_tunnel_xmit_skb
The UDP tunnel transmit functions udp_tunnel_xmit_skb and
udp_tunnel6_xmit_skb include a socket argument. The socket being
passed to the functions (from VXLAN) is a UDP created for receive
side. The only thing that the socket is used for in the transmit
functions is to get the setting for checksum (enabled or zero).
This patch removes the argument and and adds a nocheck argument
for checksum setting. This eliminates the unnecessary dependency
on a UDP socket for UDP tunnel transmit.
Signed-off-by: Tom Herbert <therbert@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Upstream: d998f8ef ("udp: Do not require sock in udp_tunnel_xmit_skb")
Signed-off-by: Jesse Gross <jesse@nicira.com>
Acked-by: Thomas Graf <tgraf@noironetworks.com>
Acked-by: Pravin B Shelar <pshelar@nicira.com>
Upstream commit:
udp-tunnel: Add a few more UDP tunnel APIs
Added a few more UDP tunnel APIs that can be shared by UDP based
tunnel protocol implementation. The main ones are highlighted below.
setup_udp_tunnel_sock() configures UDP listener socket for
receiving UDP encapsulated packets.
udp_tunnel_xmit_skb() and upd_tunnel6_xmit_skb() transmit skb
using UDP encapsulation.
udp_tunnel_sock_release() closes the UDP tunnel listener socket.
Signed-off-by: Andy Zhou <azhou@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Upstream: 6a93cc90 ("udp-tunnel: Add a few more UDP tunnel APIs")
Signed-off-by: Jesse Gross <jesse@nicira.com>
Acked-by: Thomas Graf <tgraf@noironetworks.com>
Acked-by: Pravin B Shelar <pshelar@nicira.com>
Upstream commit:
udp: Add udp_sock_create for UDP tunnels to open listener socket
Added udp_tunnel.c which can contain some common functions for UDP
tunnels. The first function in this is udp_sock_create which is used
to open the listener port for a UDP tunnel.
Signed-off-by: Tom Herbert <therbert@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Upstream: 8024e028 ("udp: Add udp_sock_create for UDP tunnels to open listener socket")
Signed-off-by: Jesse Gross <jesse@nicira.com>
Acked-by: Thomas Graf <tgraf@noironetworks.com>
