FD.io VPP  v21.01.1
Vector Packet Processing
vxlan_gpe_node.c
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1 /*
2  * Copyright (c) 2016 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 #include <vlib/vlib.h>
16 #include <vnet/vnet.h>
17 #include <vppinfra/error.h>
18 #include <vnet/ip/ip.h>
22 
23 typedef struct
24 {
25  u32 next_index;
26  u32 flow_label;
28 
29 /* packet trace format function */
30 static u8 *
31 format_export_trace (u8 * s, va_list * args)
32 {
33  CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *);
34  CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *);
35  export_trace_t *t = va_arg (*args, export_trace_t *);
36 
37  s = format (s, "EXPORT: flow_label %d, next index %d",
38  t->flow_label, t->next_index);
39  return s;
40 }
41 
45 
46 #define foreach_export_error \
47 _(RECORDED, "Packets recorded for export")
48 
49 typedef enum
50 {
51 #define _(sym,str) EXPORT_ERROR_##sym,
53 #undef _
56 
57 static char *export_error_strings[] = {
58 #define _(sym,string) string,
60 #undef _
61 };
62 
63 typedef enum
64 {
68 
69 always_inline void
70 copy3cachelines (void *dst, const void *src, size_t n)
71 {
72 #if 0
74  {
75  /* Copy only the first 1/2 cache lines whatever is available */
76  if (n >= 64)
77  clib_mov64 ((u8 *) dst, (const u8 *) src);
78  if (n >= 128)
79  clib_mov64 ((u8 *) dst + 64, (const u8 *) src + 64);
80  return;
81  }
82  clib_mov64 ((u8 *) dst, (const u8 *) src);
83  clib_mov64 ((u8 *) dst + 64, (const u8 *) src + 64);
84  clib_mov64 ((u8 *) dst + 128, (const u8 *) src + 128);
85 #endif
86 #if 1
87 
88  u64 *copy_dst, *copy_src;
89  int i;
90  copy_dst = (u64 *) dst;
91  copy_src = (u64 *) src;
93  {
94  for (i = 0; i < n / 64; i++)
95  {
96  copy_dst[0] = copy_src[0];
97  copy_dst[1] = copy_src[1];
98  copy_dst[2] = copy_src[2];
99  copy_dst[3] = copy_src[3];
100  copy_dst[4] = copy_src[4];
101  copy_dst[5] = copy_src[5];
102  copy_dst[6] = copy_src[6];
103  copy_dst[7] = copy_src[7];
104  copy_dst += 8;
105  copy_src += 8;
106  }
107  return;
108  }
109  for (i = 0; i < 3; i++)
110  {
111  copy_dst[0] = copy_src[0];
112  copy_dst[1] = copy_src[1];
113  copy_dst[2] = copy_src[2];
114  copy_dst[3] = copy_src[3];
115  copy_dst[4] = copy_src[4];
116  copy_dst[5] = copy_src[5];
117  copy_dst[6] = copy_src[6];
118  copy_dst[7] = copy_src[7];
119  copy_dst += 8;
120  copy_src += 8;
121  }
122 #endif
123 }
124 
125 static void
127  vlib_buffer_t * pak_buf)
128 {
129  /* Todo: on implementing VXLAN GPE analyse */
130 }
131 
132 static uword
135 {
137  ioam_export_node_common (em, vm, node, frame, ip4_header_t, length,
138  ip_version_and_header_length,
141  return frame->n_vectors;
142 }
143 
144 /*
145  * Node for VXLAN-GPE export
146  */
147 /* *INDENT-OFF* */
149 {
150  .function = vxlan_gpe_export_node_fn,
151  .name = "vxlan-gpe-ioam-export",
152  .vector_size = sizeof (u32),
153  .format_trace = format_export_trace,
155  .n_errors = ARRAY_LEN (export_error_strings),
156  .error_strings = export_error_strings,
157  .n_next_nodes = EXPORT_N_NEXT,
158  /* edit / add dispositions here */
159  .next_nodes =
160  {[EXPORT_NEXT_VXLAN_GPE_INPUT] = "vxlan-gpe-pop-ioam-v4"},
161 };
162 /* *INDENT-ON* */
163 
164 /*
165  * fd.io coding-style-patch-verification: ON
166  *
167  * Local Variables:
168  * eval: (c-set-style "gnu")
169  * End:
170  */
#define CLIB_UNUSED(x)
Definition: clib.h:87
static void vxlan_gpe_export_fixup_func(vlib_buffer_t *export_buf, vlib_buffer_t *pak_buf)
static uword vxlan_gpe_export_node_fn(vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *frame)
unsigned long u64
Definition: types.h:89
VXLAN GPE definitions.
u32 next_index
Definition: node.c:26
vl_api_address_t src
Definition: gre.api:54
vlib_main_t * vm
Definition: in2out_ed.c:1580
unsigned char u8
Definition: types.h:56
#define foreach_export_error
description fragment has unexpected format
Definition: map.api:433
unsigned int u32
Definition: types.h:88
VXLAN GPE packet header structure.
vl_api_fib_path_type_t type
Definition: fib_types.api:123
static void copy3cachelines(void *dst, const void *src, size_t n)
#define PREDICT_FALSE(x)
Definition: clib.h:121
u32 flow_label
Definition: node.c:27
#define always_inline
Definition: ipsec.h:28
vl_api_address_t dst
Definition: gre.api:55
#define VLIB_REGISTER_NODE(x,...)
Definition: node.h:170
u16 n_vectors
Definition: node.h:397
sll srl srl sll sra u16x4 i
Definition: vector_sse42.h:317
#define ARRAY_LEN(x)
Definition: clib.h:67
vlib_main_t vlib_node_runtime_t * node
Definition: in2out_ed.c:1580
vlib_node_registration_t vxlan_export_node
(constructor) VLIB_REGISTER_NODE (vxlan_export_node)
char const int length
Definition: cJSON.h:163
struct _vlib_node_registration vlib_node_registration_t
static char * export_error_strings[]
vlib_main_t vlib_node_runtime_t vlib_frame_t * frame
Definition: in2out_ed.c:1581
VLIB buffer representation.
Definition: buffer.h:102
#define ioam_export_node_common(EM, VM, N, F, HTYPE, L, V, NEXT, FIXUP_FUNC)
Definition: ioam_export.h:470
u64 uword
Definition: types.h:112
ioam_export_main_t vxlan_gpe_ioam_export_main
#define DEFAULT_EXPORT_SIZE
Definition: ioam_export.h:84
export_error_t
vlib_node_registration_t export_node
(constructor) VLIB_REGISTER_NODE (export_node)
Definition: node.c:43
export_next_t
static void clib_mov64(u8 *dst, const u8 *src)
Definition: memcpy_avx2.h:78
static u8 * format_export_trace(u8 *s, va_list *args)