1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
|
/*
* l2_output.h : layer 2 output packet processing
*
* Copyright (c) 2013 Cisco and/or its affiliates.
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef included_vnet_l2_output_h
#define included_vnet_l2_output_h
#include <vlib/vlib.h>
#include <vnet/vnet.h>
#include <vnet/l2/feat_bitmap.h>
#include <vnet/l2/l2_vtr.h>
/* The L2 output feature configuration, a per-interface struct */
typedef struct
{
u32 feature_bitmap;
/*
* vlan tag rewrite for ingress and egress
* ingress vtr is located here because the same config data is used for
* the egress EFP filter check
*/
vtr_config_t input_vtr;
vtr_config_t output_vtr;
ptr_config_t input_pbb_vtr;
ptr_config_t output_pbb_vtr;
/* some of these flags may get integrated into the feature bitmap */
u8 fwd_enable;
u8 flood_enable;
/* split horizon group */
u8 shg;
/* flag for output vtr operation */
u8 out_vtr_flag;
} l2_output_config_t;
typedef struct
{
/*
* vector of output next node index, indexed by sw_if_index.
* used when all output features have been executed and the
* next nodes are the interface output nodes.
*/
u32 *output_node_index_vec;
/*
* array of next node index for each output feature, indexed
* by l2output_feat_t. Used to determine next feature node.
*/
u32 l2_out_feat_next[32];
/* config vector indexed by sw_if_index */
l2_output_config_t *configs;
/* Convenience variables */
vlib_main_t *vlib_main;
vnet_main_t *vnet_main;
} l2output_main_t;
l2output_main_t l2output_main;
extern vlib_node_registration_t l2output_node;
/* L2 output features */
/* Mappings from feature ID to graph node name in reverse order */
#define foreach_l2output_feat \
_(OUTPUT, "interface-output") \
_(SPAN, "span-l2-output") \
_(CFM, "feature-bitmap-drop") \
_(QOS, "feature-bitmap-drop") \
_(ACL, "l2-output-acl") \
_(L2PT, "feature-bitmap-drop") \
_(EFP_FILTER, "l2-efp-filter") \
_(IPIW, "feature-bitmap-drop") \
_(STP_BLOCKED, "feature-bitmap-drop") \
_(LINESTATUS_DOWN, "feature-bitmap-drop") \
_(OUTPUT_CLASSIFY, "l2-output-classify") \
_(XCRW, "l2-xcrw")
/* Feature bitmap positions */
typedef enum
{
#define _(sym,str) L2OUTPUT_FEAT_##sym##_BIT,
foreach_l2output_feat
#undef _
L2OUTPUT_N_FEAT,
} l2output_feat_t;
STATIC_ASSERT (L2OUTPUT_N_FEAT <= 32, "too many l2 output features");
/* Feature bit masks */
typedef enum
{
#define _(sym,str) L2OUTPUT_FEAT_##sym = (1<<L2OUTPUT_FEAT_##sym##_BIT),
foreach_l2output_feat
#undef _
} l2output_feat_masks_t;
#define foreach_l2output_error \
_(L2OUTPUT, "L2 output packets") \
_(EFP_DROP, "L2 EFP filter pre-rewrite drops") \
_(VTR_DROP, "L2 output tag rewrite drops") \
_(SHG_DROP, "L2 split horizon drops") \
_(DROP, "L2 output drops") \
_(MAPPING_DROP, "L2 Output interface not valid")
typedef enum
{
L2OUTPUT_NEXT_DROP,
L2OUTPUT_NEXT_BAD_INTF,
L2OUTPUT_N_NEXT,
} l2output_next_t;
typedef enum
{
#define _(sym,str) L2OUTPUT_ERROR_##sym,
foreach_l2output_error
#undef _
L2OUTPUT_N_ERROR,
} l2output_error_t;
/* Return an array of strings containing graph node names of each feature */
char **l2output_get_feat_names (void);
/* arg0 - u32 feature_bitmap */
u8 *format_l2_output_features (u8 * s, va_list * args);
/**
* The next set of functions is for use by output feature graph nodes.
* When the last bit has been cleared from the output feature bitmap,
* the next node is the output graph node for the TX sw_if_index.
* These functions help the feature nodes get that node index.
*/
/* Create a mapping to the output graph node for the given sw_if_index */
void l2output_create_output_node_mapping (vlib_main_t * vlib_main,
vnet_main_t * vnet_main,
u32 sw_if_index);
/** Get a pointer to the config for the given interface */
l2_output_config_t *l2output_intf_config (u32 sw_if_index);
/** Enable (or disable) the feature in the bitmap for the given interface */
void l2output_intf_bitmap_enable (u32 sw_if_index,
u32 feature_bitmap, u32 enable);
#endif
/*
* fd.io coding-style-patch-verification: ON
*
* Local Variables:
* eval: (c-set-style "gnu")
* End:
*/
|
