linux-toradex.git/net/openvswitch/flow.c, branch v4.9.106

openvswitch: vlan: remove wrong likely statement

2016-10-13T14:03:23+00:00

This code is called whenever flow key is being extracted from the packet.
The packet may be as likely vlan tagged as not.

Fixes: 018c1dda5ff1 ("openvswitch: 802.1AD Flow handling, actions, vlan parsing, netlink attributes")
Signed-off-by: Jiri Benc 
Acked-by: Pravin B Shelar 
Acked-by: Eric Garver 
Signed-off-by: David S. Miller

openvswitch: mpls: set network header correctly on key extract

2016-10-03T06:00:21+00:00

After the 48d2ab609b6b ("net: mpls: Fixups for GSO"), MPLS handling in
openvswitch was changed to have network header pointing to the start of the
MPLS headers and inner_network_header pointing after the MPLS headers.

However, key_extract was missed by the mentioned commit, causing incorrect
headers to be set when a MPLS packet just enters the bridge or after it is
recirculated.

Fixes: 48d2ab609b6b ("net: mpls: Fixups for GSO")
Signed-off-by: Jiri Benc 
Acked-by: Pravin B Shelar 
Signed-off-by: David S. Miller

openvswitch: avoid resetting flow key while installing new flow.

2016-09-21T02:54:35+00:00

since commit commit db74a3335e0f6 ("openvswitch: use percpu
flow stats") flow alloc resets flow-key. So there is no need
to reset the flow-key again if OVS is using newly allocated
flow-key.

Signed-off-by: Pravin B Shelar 
Signed-off-by: David S. Miller

openvswitch: use percpu flow stats

2016-09-19T02:14:01+00:00

Instead of using flow stats per NUMA node, use it per CPU. When using
megaflows, the stats lock can be a bottleneck in scalability.

On a E5-2690 12-core system, usual throughput went from ~4Mpps to
~15Mpps when forwarding between two 40GbE ports with a single flow
configured on the datapath.

This has been tested on a system with possible CPUs 0-7,16-23. After
module removal, there were no corruption on the slab cache.

Signed-off-by: Thadeu Lima de Souza Cascardo 
Cc: pravin shelar 
Acked-by: Pravin B Shelar 
Signed-off-by: David S. Miller

openvswitch: fix flow stats accounting when node 0 is not possible

2016-09-19T02:14:01+00:00

On a system with only node 1 as possible, all statistics is going to be
accounted on node 0 as it will have a single writer.

However, when getting and clearing the statistics, node 0 is not going
to be considered, as it's not a possible node.

Tested that statistics are not zero on a system with only node 1
possible. Also compile-tested with CONFIG_NUMA off.

Signed-off-by: Thadeu Lima de Souza Cascardo 
Acked-by: Pravin B Shelar 
Signed-off-by: David S. Miller

openvswitch: 802.1AD Flow handling, actions, vlan parsing, netlink attributes

2016-09-09T00:10:28+00:00

Add support for 802.1ad including the ability to push and pop double
tagged vlans. Add support for 802.1ad to netlink parsing and flow
conversion. Uses double nested encap attributes to represent double
tagged vlan. Inner TPID encoded along with ctci in nested attributes.

This is based on Thomas F Herbert's original v20 patch. I made some
small clean ups and bug fixes.

Signed-off-by: Thomas F Herbert 
Signed-off-by: Eric Garver 
Acked-by: Pravin B Shelar 
Signed-off-by: David S. Miller

openvswitch: add tunnel protocol to sw_flow_key

2015-10-07T11:17:59+00:00

Store tunnel protocol (AF_INET or AF_INET6) in sw_flow_key. This field now
also acts as an indicator whether the flow contains tunnel data (this was
previously indicated by tun_key.u.ipv4.dst being set but with IPv6 addresses
in an union with IPv4 ones this won't work anymore).

The new field was added to a hole in sw_flow_key.

Signed-off-by: Jiri Benc 
Acked-by: Pravin B Shelar 
Acked-by: Thomas Graf 
Signed-off-by: David S. Miller

ip-tunnel: Use API to access tunnel metadata options.

2015-08-31T19:28:56+00:00

Currently tun-info options pointer is used in few cases to
pass options around. But tunnel options can be accessed using
ip_tunnel_info_opts() API without using the pointer. Following
patch removes the redundant pointer and consistently make use
of API.

Signed-off-by: Pravin B Shelar 
Acked-by: Thomas Graf 
Reviewed-by: Jesse Gross 
Signed-off-by: David S. Miller

openvswitch: Remove vport-net

2015-08-30T02:07:15+00:00

This structure is not used anymore.

Signed-off-by: Pravin B Shelar 
Signed-off-by: David S. Miller

openvswitch: retain parsed IPv6 header fields in flow on error skipping extension headers

2015-08-29T20:39:59+00:00

When an error occurs skipping IPv6 extension headers retain the already
parsed IP protocol and IPv6 addresses in the flow. Also assume that the
packet is not a fragment in the absence of information to the contrary;
that is always use the frag_off value set by ipv6_skip_exthdr().

This allows matching on the IP protocol and IPv6 addresses of packets
with malformed extension headers.

Signed-off-by: Simon Horman 
Signed-off-by: David S. Miller