Fix IP feature ordering.
[vpp.git] / src / vnet / devices / devices.c
1 /*
2  * Copyright (c) 2015 Cisco and/or its affiliates.
3  * Licensed under the Apache License, Version 2.0 (the "License");
4  * you may not use this file except in compliance with the License.
5  * You may obtain a copy of the License at:
6  *
7  *     http://www.apache.org/licenses/LICENSE-2.0
8  *
9  * Unless required by applicable law or agreed to in writing, software
10  * distributed under the License is distributed on an "AS IS" BASIS,
11  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12  * See the License for the specific language governing permissions and
13  * limitations under the License.
14  */
15
16 #include <vnet/vnet.h>
17 #include <vnet/devices/devices.h>
18 #include <vnet/feature/feature.h>
19 #include <vnet/ip/ip.h>
20 #include <vnet/ethernet/ethernet.h>
21
22 vnet_device_main_t vnet_device_main;
23
24 static uword
25 device_input_fn (vlib_main_t * vm, vlib_node_runtime_t * node,
26                  vlib_frame_t * frame)
27 {
28   return 0;
29 }
30
31 /* *INDENT-OFF* */
32 VLIB_REGISTER_NODE (device_input_node) = {
33   .function = device_input_fn,
34   .name = "device-input",
35   .type = VLIB_NODE_TYPE_INPUT,
36   .state = VLIB_NODE_STATE_DISABLED,
37   .n_next_nodes = VNET_DEVICE_INPUT_N_NEXT_NODES,
38   .next_nodes = VNET_DEVICE_INPUT_NEXT_NODES,
39 };
40
41 /* Table defines how much we need to advance current data pointer
42    in the buffer if we shortcut to l3 nodes */
43
44 const u32 __attribute__((aligned (CLIB_CACHE_LINE_BYTES)))
45 device_input_next_node_advance[((VNET_DEVICE_INPUT_N_NEXT_NODES /
46                                 CLIB_CACHE_LINE_BYTES) +1) * CLIB_CACHE_LINE_BYTES] =
47 {
48       [VNET_DEVICE_INPUT_NEXT_IP4_INPUT] = sizeof (ethernet_header_t),
49       [VNET_DEVICE_INPUT_NEXT_IP4_NCS_INPUT] = sizeof (ethernet_header_t),
50       [VNET_DEVICE_INPUT_NEXT_IP6_INPUT] = sizeof (ethernet_header_t),
51       [VNET_DEVICE_INPUT_NEXT_MPLS_INPUT] = sizeof (ethernet_header_t),
52 };
53
54 VNET_FEATURE_ARC_INIT (device_input, static) =
55 {
56   .arc_name  = "device-input",
57   .start_nodes = VNET_FEATURES ("device-input"),
58   .arc_index_ptr = &feature_main.device_input_feature_arc_index,
59 };
60
61 VNET_FEATURE_INIT (l2_patch, static) = {
62   .arc_name = "device-input",
63   .node_name = "l2-patch",
64   .runs_before = VNET_FEATURES ("ethernet-input"),
65 };
66
67 VNET_FEATURE_INIT (worker_handoff, static) = {
68   .arc_name = "device-input",
69   .node_name = "worker-handoff",
70   .runs_before = VNET_FEATURES ("ethernet-input"),
71 };
72
73 VNET_FEATURE_INIT (span_input, static) = {
74   .arc_name = "device-input",
75   .node_name = "span-input",
76   .runs_before = VNET_FEATURES ("ethernet-input"),
77 };
78
79 VNET_FEATURE_INIT (ethernet_input, static) = {
80   .arc_name = "device-input",
81   .node_name = "ethernet-input",
82   .runs_before = 0, /* not before any other features */
83 };
84 /* *INDENT-ON* */
85
86 static clib_error_t *
87 vnet_device_init (vlib_main_t * vm)
88 {
89   vnet_device_main_t *vdm = &vnet_device_main;
90   vlib_thread_main_t *tm = vlib_get_thread_main ();
91
92   vec_validate_aligned (vdm->workers, tm->n_vlib_mains - 1,
93                         CLIB_CACHE_LINE_BYTES);
94   return 0;
95 }
96
97 VLIB_INIT_FUNCTION (vnet_device_init);
98 /*
99  * fd.io coding-style-patch-verification: ON
100  *
101  * Local Variables:
102  * eval: (c-set-style "gnu")
103  * End:
104  */