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2019-12-03fib feature: Code mechanics to decouple dependency of feature on adjNeale Ranns1-0/+6
Type: refactor Signed-off-by: Neale Ranns <nranns@cisco.com> Change-Id: I1d8b88fe1eefc850865297b4f025b97e6373a6bd
2019-11-25vlib: autogenerate <node> before <last-in-arc> constraintsDave Barach1-0/+1
If an arc declaration includes '.last_in_arc = "some-node"', assume that folks mean it and add explicit ordering constraints. Fix the "arp" arc declaration which claimed that the arc ends at arp-disabled, but the arc really ends at error-drop. Type: fix Signed-off-by: Dave Barach <dave@barachs.net> Change-Id: Ie2de1fb30091671cbc7c62770903a2e05987f141
2019-10-16bonding: graph node running after bond-input in feature arc may crashSteven Luong1-0/+7
In bond RX quad loop, when all packets within the frame have the same incoming interface, we cannot skip calling bond_update_next because that function calls vnet_feature_next() to update the b->current_config_index. The next node needs the correct b->current_config_index to work with. Type: fix Signed-off-by: Steven Luong <sluong@cisco.com> Change-Id: I3d8b3d4e0f95490f406fae7638f0c43c301ce664
2018-11-26Add a feature arc consistency checkDave Barach1-0/+2
Verify that last node in the computed feature order matches reality. This check doesn't make sense in all cases, so we skip it if the newly-added vnet_feature_arc_registration_t ".last_in_arc" datum is a NULL pointer. Change-Id: Ia99c3e2b2da2e4780a7d5bc71670c5742a66fef2 Signed-off-by: Dave Barach <dave@barachs.net>
2018-11-19Improve feature arc order constraint specificationDave Barach1-6/+55
Add the VNET_FEATURE_ARC_ORDER macro, which allows specification of bulk order constraints. Here's an example: VNET_FEATURE_ARC_ORDER(ip4_unicast_arc_order, static) = { .arc_name = "ip4-unicast", .node_names = VNET_FEATURES ("ip4-flow-classify", "ip4-inacl", "ip4-source-check-via-rx", "ip4-source-check-via-any", "ip4-source-and-port-range-check-rx", "ip4-policer-classify", "ipsec4-input", "vpath-input-ip4", "ip4-vxlan-bypass", "ip4-not-enabled", "ip4-lookup"), }; Simply list feature nodes in the desired order, and you're done. Multiple macro instances per are are fine / expected / tested. Under the covers: generate "a before b" tuples by chain-dragging across the ordered list. No need to touch existing per-feature constraints. Fixed a long-broken "you lose!" error message. Change-Id: I259282e426fd305e22c8d65886787c41a1d348d3 Signed-off-by: Dave Barach <dave@barachs.net>
2018-08-13Multiarch handling in different constructor macrosDamjan Marion1-0/+9
This significantly reduces need for ... in multiarch code. Simply constructor macros will jost create static unused entry if CLIB_MARCH_VARIANT is defined and that will be optimized out by compiler. Change-Id: I17d1c4ac0c903adcfadaa4a07de1b854c7ab14ac Signed-off-by: Damjan Marion <damarion@cisco.com>
2018-07-19Remove unused argument to vlib_feature_nextDamjan Marion1-4/+4
Change-Id: Ieb8b53977fc8484c19780941e232ee072b667de3 Signed-off-by: Damjan Marion <damarion@cisco.com>
2018-07-19Cleanup of handoff codeDamjan Marion1-14/+0
- removed handoff-dispatch node - removed some unused buffer metadata fields - enqueue to thread logic moved to inline function Change-Id: I7361e1d88f8cce74cd4fcec90d172eade1855cbd Signed-off-by: Damjan Marion <damarion@cisco.com>
2018-05-27VPP-1294: add missing feature arc constraintDave Barach1-1/+2
the ip4-dhcp-client-detect feature MUST run prior to nat44-out2in, or inbound dhcp broadcast packets will be dropped. Certain dhcp servers answer lease renewal dhcp-request packets with broadcast dhcp-acks, leading to unrecoverable lease loss. In detail, this constraint: VNET_FEATURE_INIT (ip4_snat_out2in, static) = { .arc_name = "ip4-unicast", .node_name = "nat44-out2in", .runs_after = VNET_FEATURES ("acl-plugin-in-ip4-fa"), }; doesn't get the job done: ip4-unicast: [17] nat44-out2in [23] ip4-dhcp-client-detect [26] ip4-not-enabled Add a proper constraint: VNET_FEATURE_INIT (ip4_snat_out2in, static) = { .arc_name = "ip4-unicast", .node_name = "nat44-out2in", .runs_after = VNET_FEATURES ("acl-plugin-in-ip4-fa", "ip4-dhcp-client-detect"), }; and the interface feature order is OK, at least in this regard: ip4-unicast: [17] ip4-dhcp-client-detect [18] nat44-out2in [26] ip4-not-enabled We need to carefully audit (especially) the ip4-unicast feature arc, which has [gasp] 37 features on it! Change-Id: I5e749ead7ab2a25d80839a331de6261e112977ad Signed-off-by: Dave Barach <dave@barachs.net>
2018-04-27A bit of buffer metadata reshuffling to accommodate flow_idDamjan Marion1-9/+9
Change-Id: I2794384557c6272fe217269b14a9db09eda19220 Signed-off-by: Damjan Marion <damarion@cisco.com>
2018-04-09features: don't break linked list, create separate one for arcDamjan Marion1-1/+1
We need to keep original linked list so destructire can remove entries. Change-Id: I5ff5ca0e1a417d88707255207725bba46433c943 Signed-off-by: Damjan Marion <damarion@cisco.com>
2018-04-09plugins: unload plugin if early init failsDamjan Marion1-0/+16
Change-Id: I32f68e2ee8f5d32962acdefb0193583f71d342b3 Signed-off-by: Damjan Marion <damarion@cisco.com>
2018-02-26vnet: add vnet_device_input_have_features functionDamjan Marion1-0/+7
Change-Id: I28cfa7f7f5e4938146478c4a5cc5ad18612aadaa Signed-off-by: Damjan Marion <damarion@cisco.com>
2017-03-17Fix IP feature ordering.Neale Ranns1-3/+0
Drop comes before lookup when enabled. is_first_or_last is not required when setting a feature, the anchor is added in find_config_with_features(). Don't make the PG interfaces automatically L3 enabled, this way we can have tests that check the L3 protocol disbaled behaviour. Change-Id: Icef22a920b27ff9cec6ab2da6b05f05c532cb60f Signed-off-by: Neale Ranns <nranns@cisco.com>
2017-03-06features: take device-input buffer advance value directlyDamjan Marion1-27/+35
Change-Id: Ifac7d9134d03d79164ce6f06ae9413279bbaadb3 Signed-off-by: Damjan Marion <damarion@cisco.com>
2016-12-28Reorganize source tree to use single autotools instanceDamjan Marion1-0/+382
Change-Id: I7b51f88292e057c6443b12224486f2d0c9f8ae23 Signed-off-by: Damjan Marion <damarion@cisco.com>