2 * l2_output.h : layer 2 output packet processing
4 * Copyright (c) 2013 Cisco and/or its affiliates.
5 * Licensed under the Apache License, Version 2.0 (the "License");
6 * you may not use this file except in compliance with the License.
7 * You may obtain a copy of the License at:
9 * http://www.apache.org/licenses/LICENSE-2.0
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
18 #ifndef included_vnet_l2_output_h
19 #define included_vnet_l2_output_h
21 #include <vlib/vlib.h>
22 #include <vnet/vnet.h>
23 #include <vnet/l2/feat_bitmap.h>
24 #include <vnet/l2/l2_vtr.h>
27 /* The L2 output feature configuration, a per-interface struct */
34 * vlan tag rewrite for ingress and egress
35 * ingress vtr is located here because the same config data is used for
36 * the egress EFP filter check
38 vtr_config_t input_vtr;
39 vtr_config_t output_vtr;
40 ptr_config_t input_pbb_vtr;
41 ptr_config_t output_pbb_vtr;
43 /* some of these flags may get integrated into the feature bitmap */
47 /* split horizon group */
50 /* flag for output vtr operation */
58 * vector of output next node index, indexed by sw_if_index.
59 * used when all output features have been executed and the
60 * next nodes are the interface output nodes.
62 u32 *output_node_index_vec;
65 * array of next node index for each output feature, indexed
66 * by l2output_feat_t. Used to determine next feature node.
68 u32 l2_out_feat_next[32];
70 /* config vector indexed by sw_if_index */
71 l2_output_config_t *configs;
73 /* Convenience variables */
74 vlib_main_t *vlib_main;
75 vnet_main_t *vnet_main;
78 extern l2output_main_t l2output_main;
80 extern vlib_node_registration_t l2output_node;
82 /* L2 output features */
84 /* Mappings from feature ID to graph node name in reverse order */
85 #define foreach_l2output_feat \
86 _(OUTPUT, "interface-output") \
87 _(SPAN, "span-l2-output") \
88 _(GBP_POLICY, "gbp-policy") \
89 _(CFM, "feature-bitmap-drop") \
90 _(QOS, "feature-bitmap-drop") \
91 _(ACL, "l2-output-acl") \
92 _(L2PT, "feature-bitmap-drop") \
93 _(EFP_FILTER, "l2-efp-filter") \
94 _(IPIW, "feature-bitmap-drop") \
95 _(STP_BLOCKED, "feature-bitmap-drop") \
96 _(LINESTATUS_DOWN, "feature-bitmap-drop") \
97 _(OUTPUT_CLASSIFY, "l2-output-classify") \
100 /* Feature bitmap positions */
103 #define _(sym,str) L2OUTPUT_FEAT_##sym##_BIT,
104 foreach_l2output_feat
109 STATIC_ASSERT (L2OUTPUT_N_FEAT <= 32, "too many l2 output features");
111 /* Feature bit masks */
114 #define _(sym,str) L2OUTPUT_FEAT_##sym = (1<<L2OUTPUT_FEAT_##sym##_BIT),
115 foreach_l2output_feat
117 } l2output_feat_masks_t;
119 #define foreach_l2output_error \
120 _(L2OUTPUT, "L2 output packets") \
121 _(EFP_DROP, "L2 EFP filter pre-rewrite drops") \
122 _(VTR_DROP, "L2 output tag rewrite drops") \
123 _(SHG_DROP, "L2 split horizon drops") \
124 _(DROP, "L2 output drops") \
125 _(MAPPING_DROP, "L2 Output interface not valid")
130 L2OUTPUT_NEXT_BAD_INTF,
136 #define _(sym,str) L2OUTPUT_ERROR_##sym,
137 foreach_l2output_error
142 /* Return an array of strings containing graph node names of each feature */
143 char **l2output_get_feat_names (void);
145 /* arg0 - u32 feature_bitmap */
146 u8 *format_l2_output_features (u8 * s, va_list * args);
149 * The next set of functions is for use by output feature graph nodes.
150 * When the last bit has been cleared from the output feature bitmap,
151 * the next node is the output graph node for the TX sw_if_index.
152 * These functions help the feature nodes get that node index.
155 /* Create a mapping to the output graph node for the given sw_if_index */
156 void l2output_create_output_node_mapping (vlib_main_t * vlib_main,
157 vnet_main_t * vnet_main,
160 /** Get a pointer to the config for the given interface */
161 l2_output_config_t *l2output_intf_config (u32 sw_if_index);
163 /** Enable (or disable) the feature in the bitmap for the given interface */
164 void l2output_intf_bitmap_enable (u32 sw_if_index,
165 u32 feature_bitmap, u32 enable);
170 * fd.io coding-style-patch-verification: ON
173 * eval: (c-set-style "gnu")