classifier: Correct comment in classifier_lookup().

Signed-off-by: Ben Pfaff <blp@nicira.com>
Acked-by: Thomas Graf <tgraf@noironetworks.com>
lib/ofproto: Remove obsolete FIXME comment.

We already implement OFPFUTIL_FF_RESET_COUNTS.

Signed-off-by: Jarno Rajahalme <jrajahalme@nicira.com>
Acked-by: Ben Pfaff <blp@nicira.com>
lib/ofproto: Add comments about races in ofproto_flush().

Signed-off-by: Jarno Rajahalme <jrajahalme@nicira.com>
Acked-by: Ben Pfaff <blp@nicira.com>
lib/ovs-rcu: Support static initialization.

Currently, OVSRCU_TYPE_INITIALIZER always initializes the RCU pointer
as NULL.  There is no reason why the RCU pointer could not be
initialized with a non-NULL value, however, as statically allocated
memory is even more stable than required for RCU.

This patch changes the initializer to OVSRCU_INITIALIZER(VALUE), which
can take any pointer value as a parameter.

This allows rculist, which is introduced in a following patch, to
provide an initializer similar to the one in the normal list.

Signed-off-by: Jarno Rajahalme <jrajahalme@nicira.com>
Acked-by: Ben Pfaff <blp@nicira.com>
Change Travis CI notification email to ljakab@ac.upc.edu
userspace: add support for pop_eth and push_eth actions

These actions will allow L2->L3 and L3->L2 switching, and are supposed
to be added to flows installed in the datapath transparently by
ovs-vswitchd.

Signed-off-by: Lorand Jakab <lojakab@cisco.com>
userspace: add layer 3 flow and switching support

This commit relaxes the assumption that all packets have an Ethernet
header, and adds support for layer 3 flows.  For each packet received on
the Linux kernel datapath the l2 and l3 members of struct ofpbuf are
intialized appropriately, and some functions now expect this (notably
flow_extract()), in order to differentiate between layer 2 and layer 3
packets.  struct flow has now a new 'base_layer' member, because we
cannot assume that a flow has no Ethernet header when eth_src and
eth_dst are 0.  For layer 3 packets, the protocol type is still stored
in the eth_type member.

Switching L2->L3 and L3->L2 are both implemented by adding the pop_eth
and push_eth actions respectively when a transition is detected.  The
push_eth action puts 0s on both source and destination MACs.  These
addresses can be modified with mod_dl_dst and mod_dl_src actions.

Added new prerequisite MFP_ETHERNET for fields MFF_ETH_SRC, MFF_ETH_DST,
MFF_VLAN_TCI, MFF_DL_VLAN, MFF_VLAN_VID and MFF_DL_VLAN_PCP.

Signed-off-by: Lorand Jakab <lojakab@cisco.com>
squash
datapath: add layer 3 flow/port support

Implementation of the pop_eth and push_eth actions in the kernel, and
layer 3 flow support.

Signed-off-by: Lorand Jakab <lojakab@cisco.com>
Address Jesse's comment #1
Address Jesse's comment #8
Address Jesse's comment #7
Address Jesse's comment #6
Address Jesse's comment #5
Address Jesse's comment #4
Address Jesse's comment #2
Address Jesse's comment #6.1
Fix DPDK build issue
Create a deaccel_vlan_tx_tag() function
Fix rebase issues