FD.io VPP  v17.01-9-ge7dcee4
Vector Packet Processing
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 <vnet/pg/pg.h>
18 #include <vppinfra/error.h>
19 #include <vnet/ip/ip.h>
21 
22 typedef struct
23 {
27 
28 /* packet trace format function */
29 static u8 *
30 format_export_trace (u8 * s, va_list * args)
31 {
32  CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *);
33  CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *);
34  export_trace_t *t = va_arg (*args, export_trace_t *);
35 
36  s = format (s, "EXPORT: flow_label %d, next index %d",
37  t->flow_label, t->next_index);
38  return s;
39 }
40 
42 
43 #define foreach_export_error \
44 _(RECORDED, "Packets recorded for export")
45 
46 typedef enum
47 {
48 #define _(sym,str) EXPORT_ERROR_##sym,
50 #undef _
53 
54 static char *export_error_strings[] = {
55 #define _(sym,string) string,
57 #undef _
58 };
59 
60 typedef enum
61 {
65 
66 always_inline void
67 copy3cachelines (void *dst, const void *src, size_t n)
68 {
69 #if 0
71  {
72  /* Copy only the first 1/2 cache lines whatever is available */
73  if (n >= 64)
74  clib_mov64 ((u8 *) dst, (const u8 *) src);
75  if (n >= 128)
76  clib_mov64 ((u8 *) dst + 64, (const u8 *) src + 64);
77  return;
78  }
79  clib_mov64 ((u8 *) dst, (const u8 *) src);
80  clib_mov64 ((u8 *) dst + 64, (const u8 *) src + 64);
81  clib_mov64 ((u8 *) dst + 128, (const u8 *) src + 128);
82 #endif
83 #if 1
84 
85  u64 *copy_dst, *copy_src;
86  int i;
87  copy_dst = (u64 *) dst;
88  copy_src = (u64 *) src;
90  {
91  for (i = 0; i < n / 64; i++)
92  {
93  copy_dst[0] = copy_src[0];
94  copy_dst[1] = copy_src[1];
95  copy_dst[2] = copy_src[2];
96  copy_dst[3] = copy_src[3];
97  copy_dst[4] = copy_src[4];
98  copy_dst[5] = copy_src[5];
99  copy_dst[6] = copy_src[6];
100  copy_dst[7] = copy_src[7];
101  copy_dst += 8;
102  copy_src += 8;
103  }
104  return;
105  }
106  for (i = 0; i < 3; i++)
107  {
108  copy_dst[0] = copy_src[0];
109  copy_dst[1] = copy_src[1];
110  copy_dst[2] = copy_src[2];
111  copy_dst[3] = copy_src[3];
112  copy_dst[4] = copy_src[4];
113  copy_dst[5] = copy_src[5];
114  copy_dst[6] = copy_src[6];
115  copy_dst[7] = copy_src[7];
116  copy_dst += 8;
117  copy_src += 8;
118  }
119 #endif
120 }
121 
122 static uword
124  vlib_node_runtime_t * node, vlib_frame_t * frame)
125 {
127  ioam_export_node_common(em, vm, node, frame, ip6_header_t, payload_length,
128  ip_version_traffic_class_and_flow_label,
130  return frame->n_vectors;
131 }
132 
133 /*
134  * Node for IP6 export
135  */
137 {
138  .function = ip6_export_node_fn,
139  .name = "ip6-export",
140  .vector_size = sizeof (u32),
141  .format_trace = format_export_trace,
143  .n_errors = ARRAY_LEN (export_error_strings),
144  .error_strings = export_error_strings,
145  .n_next_nodes = EXPORT_N_NEXT,
146  /* edit / add dispositions here */
147  .next_nodes =
148  {
149  [EXPORT_NEXT_POP_HBYH] = "ip6-pop-hop-by-hop"
150  },
151 };
#define foreach_export_error
Definition: node.c:43
sll srl srl sll sra u16x4 i
Definition: vector_sse2.h:343
#define CLIB_UNUSED(x)
Definition: clib.h:79
static void clib_mov64(u8 *dst, const u8 *src)
Definition: memcpy_avx.h:70
bad routing header type(not 4)") sr_error (NO_MORE_SEGMENTS
static u8 * format_export_trace(u8 *s, va_list *args)
Definition: node.c:30
u32 next_index
Definition: node.c:24
struct _vlib_node_registration vlib_node_registration_t
static void copy3cachelines(void *dst, const void *src, size_t n)
Definition: node.c:67
#define always_inline
Definition: clib.h:84
unsigned long u64
Definition: types.h:89
#define ioam_export_node_common(EM, VM, N, F, HTYPE, L, V, NEXT)
Definition: ioam_export.h:455
vlib_node_registration_t export_node
(constructor) VLIB_REGISTER_NODE (export_node)
Definition: node.c:41
export_next_t
Definition: node.c:60
#define PREDICT_FALSE(x)
Definition: clib.h:97
u32 flow_label
Definition: node.c:25
u16 n_vectors
Definition: node.h:344
#define ARRAY_LEN(x)
Definition: clib.h:59
static uword ip6_export_node_fn(vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *frame)
Definition: node.c:123
unsigned int u32
Definition: types.h:88
u64 uword
Definition: types.h:112
static char * export_error_strings[]
Definition: node.c:54
unsigned char u8
Definition: types.h:56
#define DEFAULT_EXPORT_SIZE
Definition: ioam_export.h:82
export_error_t
Definition: node.c:46
#define VLIB_REGISTER_NODE(x,...)
Definition: node.h:143
u8 * format(u8 *s, const char *fmt,...)
Definition: format.c:418
ioam_export_main_t ioam_export_main
Definition: ioam_export.h:76