More than 649 commits since the 18.10 release.

Features

Infrastructure

NUMA-aware, growable physical memory allocator (pmalloc)
FIB: sticky load-balance
C11 safe string handling: provide and use "safe" C string handling functions
vlib: allocate buffers on local numa, not on numa 1
vppinfra: autodetect default hugepage size
Move RPC traffic off the shared-memory API queue
IPv6: Make link-local configurable per-interface
IGMP: improve CLI debug output
IPSec: split ipsec nodes into ip4/ip6 nodes
IPSec: infra for selecting backends
vhost-user: cleanup and performance optimizations
ethernet-input, memif improvements and optimizations
DPDK: bump to DPDK 18.11
reassembly: harden reassembly code
stats: Deprecate old (event-based) stats framework
vlib: support Hyper-V/Azure VMBus
binary api clients: wait for vpp to start
graph dispatch trace: capture packet data and buffer metadata, output in pcap format
improve feature arc order constraint specification

VNET & Plugins

pktgen: correctly replay a mix of single and multi-buffer packets
add wireshark dissector to extras
avf: optimizations
acl-plugin: use L2 feature arc instead of L2 classifier
acl-plugin: performance enhancement
dpdk: allow interface name to be specified from startup.conf
dpdk: blacklist PCI devices by type
dpdk: switch to in-memory mode, deprecate use of socket-mem
vnet: store hw interface speed in kbps instead of using flags
vmxnet3: enable promiscuous mode & cli enhancements
gbp: Add support for flow hash profile & l3-out subnets
map: Add API support for setting parameters.
map: Convert from DPO to input feature
nat: improve expired sessions reuse in NAT44
nat: syslog - sessions logging
nsim: add packet loss simulation, docs
perfmon: x86_64 perf counter plugin
vnet: L2 feature arc infrastructure

Host stack

TCP congestion control improvements
TCP Cubic congestion control algorithm
TCP fast path optimizations
Transport tx connection pacer. TCP uses it by default
Basic support for session flushing and TCP PSH segments
TCP/session api support for configuring custom local src ip/port
VCL/LDP basic support for multi-process applications
Overall code hardening, cleanup and bugfixing for tcp, session, vcl and ldp

PAPI & Test framework

add specific API types for IP addresses, MAC address, interface index etc.
add timeout support for socket transport
add support for format/unformat functions
generic API types format/unformat support for VAT and custom dump
python3 test adjustments
make test: create virtualenv under /test/
make test: print TEST= values for failed tests
add human-friendly annotations to log messages

VOM

Add support for redirect contracts in gbp
deprecate TAP add ip-punt redirect dump
vxlan-gbp support

Known issues

For the full list of issues please refer to fd.io JIRA.

Issues fixed

For the full list of fixed issues please refer to:

fd.io JIRA
git commit log

API changes

Description of results:

Definition changed: indicates that the API file was modified between releases.
Only in image: indicates the API is new for this release.
Only in file: indicates the API has been removed in this release.

Message Name	Results
acl_plugin_get_conn_table_max_entries	only in image
acl_plugin_get_conn_table_max_entries_reply	only in image
app_worker_add_del	definition changed
app_worker_add_del_reply	definition changed
application_attach_reply	definition changed
bd_ip_mac_add_del	definition changed
bd_ip_mac_details	definition changed
bd_ip_mac_flush	only in image
bd_ip_mac_flush_reply	only in image
bond_create	definition changed
cli_inband	definition changed
cli_inband_reply	definition changed
gbp_bridge_domain_add	only in image
gbp_bridge_domain_add_reply	only in image
gbp_bridge_domain_del	only in image
gbp_bridge_domain_del_reply	only in image
gbp_bridge_domain_details	only in image
gbp_bridge_domain_dump	only in image
gbp_bridge_domain_dump_reply	only in image
gbp_endpoint_details	definition changed
gbp_endpoint_group_add	only in image
gbp_endpoint_group_add_del	only in file
gbp_endpoint_group_add_del_reply	only in file
gbp_endpoint_group_add_reply	only in image
gbp_endpoint_group_del	only in image
gbp_endpoint_group_del_reply	only in image
gbp_endpoint_learn_set_inactive_threshold	only in image
gbp_endpoint_learn_set_inactive_threshold_reply	only in image
gbp_ext_itf_add_del	only in image
gbp_ext_itf_add_del_reply	only in image
gbp_ext_itf_details	only in image
gbp_ext_itf_dump	only in image
gbp_route_domain_add	only in image
gbp_route_domain_add_reply	only in image
gbp_route_domain_del	only in image
gbp_route_domain_del_reply	only in image
gbp_route_domain_details	only in image
gbp_route_domain_dump	only in image
gbp_route_domain_dump_reply	only in image
gbp_vxlan_tunnel_add	only in image
gbp_vxlan_tunnel_add_reply	only in image
gbp_vxlan_tunnel_del	only in image
gbp_vxlan_tunnel_del_reply	only in image
gbp_vxlan_tunnel_details	only in image
gbp_vxlan_tunnel_dump	only in image
igmp_proxy_device_add_del	only in image
igmp_proxy_device_add_del_interface	only in image
igmp_proxy_device_add_del_interface_reply	only in image
igmp_proxy_device_add_del_reply	only in image
ip6_mfib_details	definition changed
ip_container_proxy_details	only in image
ip_container_proxy_dump	only in image
ip_mfib_details	definition changed
ip_punt_redirect	definition changed
ip_punt_redirect_details	only in image
ip_punt_redirect_dump	only in image
ip_source_check_interface_add_del	only in image
ip_source_check_interface_add_del_reply	only in image
ipip_6rd_add_tunnel_reply	definition changed
ipip_6rd_del_tunnel	definition changed
ipip_add_tunnel_reply	definition changed
ipip_del_tunnel	definition changed
ipip_tunnel_details	definition changed
ipip_tunnel_dump	definition changed
ipsec_backend_details	only in image
ipsec_backend_dump	only in image
ipsec_sa_details	definition changed
ipsec_select_backend	only in image
ipsec_select_backend_reply	only in image
ipsec_tunnel_if_add_del	definition changed
map_add_del_rule	definition changed
map_add_domain	definition changed
map_another_segment	definition changed
map_domain_details	definition changed
map_if_enable_disable	only in image
map_if_enable_disable_reply	only in image
map_param_add_del_pre_resolve	only in image
map_param_add_del_pre_resolve_reply	only in image
map_param_get	only in image
map_param_get_reply	only in image
map_param_set_fragmentation	only in image
map_param_set_fragmentation_reply	only in image
map_param_set_icmp6	only in image
map_param_set_icmp6_reply	only in image
map_param_set_icmp	only in image
map_param_set_icmp_reply	only in image
map_param_set_reassembly	only in image
map_param_set_reassembly_reply	only in image
map_param_set_security_check	only in image
map_param_set_security_check_reply	only in image
map_param_set_tcp	only in image
map_param_set_tcp_reply	only in image
map_param_set_traffic_class	only in image
map_param_set_traffic_class_reply	only in image
map_rule_details	definition changed
memclnt_delete	definition changed
nat44_add_del_lb_static_mapping	definition changed
nat44_lb_static_mapping_add_del_local	only in image
nat44_lb_static_mapping_add_del_local_reply	only in image
nat44_lb_static_mapping_details	definition changed
nsim_configure	definition changed
punt	only in file
punt_details	only in image
punt_dump	only in image
punt_reply	only in file
punt_socket_deregister	definition changed
punt_socket_details	only in image
punt_socket_dump	only in image
punt_socket_register	definition changed
set_ip_flow_hash	definition changed
set_punt	only in image
set_punt_reply	only in image
show_version_reply	definition changed
stats_get_poller_delay	only in file
stats_get_poller_delay_reply	only in file
sw_interface_bond_details	definition changed
sw_interface_details	definition changed
sw_interface_ip6_set_link_local_address	only in file
sw_interface_ip6_set_link_local_address_reply	only in file
sw_interface_tap_v2_details	definition changed
syslog_get_filter	only in image
syslog_get_filter_reply	only in image
syslog_get_sender	only in image
syslog_get_sender_reply	only in image
syslog_set_filter	only in image
syslog_set_filter_reply	only in image
syslog_set_sender	only in image
syslog_set_sender_reply	only in image
tap_create_v2	definition changed
unmap_segment	definition changed
vnet_bier_neighbor_counters	only in file
vnet_get_summary_stats	only in file
vnet_get_summary_stats_reply	only in file
vnet_interface_combined_counters	only in file
vnet_interface_simple_counters	only in file
vnet_ip4_fib_counters	only in file
vnet_ip4_mfib_counters	only in file
vnet_ip4_nbr_counters	only in file
vnet_ip6_fib_counters	only in file
vnet_ip6_mfib_counters	only in file
vnet_ip6_nbr_counters	only in file
vnet_per_interface_combined_counters	only in file
vnet_per_interface_simple_counters	only in file
vnet_udp_encap_counters	only in file
want_bier_neighbor_stats	only in file
want_bier_neighbor_stats_reply	only in file
want_interface_combined_stats	only in file
want_interface_combined_stats_reply	only in file
want_interface_simple_stats	only in file
want_interface_simple_stats_reply	only in file
want_ip4_fib_stats	only in file
want_ip4_fib_stats_reply	only in file
want_ip4_mfib_stats	only in file
want_ip4_mfib_stats_reply	only in file
want_ip4_nbr_stats	only in file
want_ip4_nbr_stats_reply	only in file
want_ip6_fib_stats	only in file
want_ip6_fib_stats_reply	only in file
want_ip6_mfib_stats	only in file
want_ip6_mfib_stats_reply	only in file
want_ip6_nbr_stats	only in file
want_ip6_nbr_stats_reply	only in file
want_per_interface_combined_stats	only in file
want_per_interface_combined_stats_reply	only in file
want_per_interface_simple_stats	only in file
want_per_interface_simple_stats_reply	only in file
want_stats	only in file
want_stats_reply	only in file
want_udp_encap_stats	only in file
want_udp_encap_stats_reply	only in file

Found 170 api message signature differences

Patches that changed API definitions

`src/vnet/interface_types.api`
53fffa1	API: Add support for type aliases

`src/vnet/interface.api`
f49ba0e	stats: Deprecate old stats framework
53fffa1	API: Add support for type aliases
5100aa9	vnet: store hw interface speed in kbps instead of using flags

`src/vnet/syslog/syslog.api`
b4515b4	Add RFC5424 syslog protocol support (VPP-1139)

`src/vnet/fib/fib_types.api`
775f73c	FIB: encode the label stack in the FIB path during table dump

`src/vnet/ip/ip.api`
7c03ed4	VOM: mroutes
3460b01	api: ip_source_check_interface_add_del api is added.
609e121	VPP-1507: Added binary api to dump configured ip_punt_redirect
2af0e3a	flow-hash: Add symmetric flag for flow hashing
47527b2	IP-punt: add documentation to the API and fix IP address init
5bb1eca	IPv6: Make link-local configurable per-interface (VPP-1446)
75b9f45	ip: add container proxy dump API (VPP-1364)

`src/vnet/ip/ip_types.api`
8c8acc0	API: Change ip4_address and ip6_address to use type alias.
ffba3c3	MAP: Use explicit address/prefix types in API

`src/vnet/ip/punt.api`
e88865d	VPP-1506: dump local punts and registered punt sockets

`src/vnet/ipsec/ipsec.api`
4c422f9	Add IPSec interface FIB index for TX packet
b4a7a7d	Add UDP encap flag
b4d3053	ipsec: infra for selecting backends
871bca9	VPP-1450: binary api call for dumping SPD to interface registration

`src/vnet/l2/l2.api`
e26c81f	L2 BD API to flush all IP-MAC entries in the specified BD
8006c6a	PAPI: Add MACAddress object wrapper for vl_api_mac_address_t
93cc3ee	GBP Endpoint Learning
4d5b917	BD ARP entry use common API types

`src/vnet/vxlan-gbp/vxlan_gbp.api`
93cc3ee	GBP Endpoint Learning

`src/vnet/ipip/ipip.api`
53fffa1	API: Add support for type aliases

`src/vnet/session/session.api`
d85de68	vcl: wait for segments with segment handle
fa76a76	session: segment handle in accept/connect notifications
c1f5a43	session: cleanup use of api_client_index
c0d532d	session: mark apis for deprecation

`src/vnet/ethernet/ethernet_types.api`
8006c6a	PAPI: Add MACAddress object wrapper for vl_api_mac_address_t

`src/vnet/bonding/bond.api`
ad9d528	bonding: support custom interface IDs

`src/vnet/devices/tap/tapv2.api`
754f24b	tapv2: add "tap_flags" field to the TAPv2 interface API

`src/vlibmemory/memclnt.api`
eaec2a6	bapi: add options to have vpp cleanup client registration

`src/vpp/api/vpe.api`
f49ba0e	stats: Deprecate old stats framework
413f4a5	API: Use string type instead of u8.

`src/plugins/acl/acl.api`
bb5d22d	New api in order to get max entries of connection table is added.

`src/plugins/nsim/nsim.api`
10c5ff1	nsim: add packet loss simulation, docs

`src/plugins/gbp/gbp.api`
1c17e2e	GBP: add allowed ethertypes to contracts
b6a4795	GBP: l3-out subnets
33b81da	vom: Add support for redirect contracts in gbp
13a08cc	GBP: redirect contracts
c29c0af	GBP: Endpoints with VLAN tags and birdges that don't learn
93cc3ee	GBP Endpoint Learning

`src/plugins/nat/nat.api`
b686508	NAT44: nat44_add_del_lb_static_mapping enhancements (VPP-1514)

`src/plugins/map/map.api`
fc7344f	MAP: Convert from DPO to input feature.
f34597f	MAP: Add API support for MAP input feature.
5a2e278	MAP: Add API support for setting parameters.
a173a7a	MAP: Use bool type in map.api instead of u8.
ffba3c3	MAP: Use explicit address/prefix types in API

`src/plugins/igmp/igmp.api`
97748ca	IGMP: proxy device