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Vector Packet Processing
vector.h
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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  Copyright (c) 2005 Eliot Dresselhaus
17 
18  Permission is hereby granted, free of charge, to any person obtaining
19  a copy of this software and associated documentation files (the
20  "Software"), to deal in the Software without restriction, including
21  without limitation the rights to use, copy, modify, merge, publish,
22  distribute, sublicense, and/or sell copies of the Software, and to
23  permit persons to whom the Software is furnished to do so, subject to
24  the following conditions:
25 
26  The above copyright notice and this permission notice shall be
27  included in all copies or substantial portions of the Software.
28 
29  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
30  EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
31  MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
32  NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
33  LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
34  OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
35  WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
36 */
37 
38 #ifndef included_clib_vector_h
39 #define included_clib_vector_h
40 
41 #include <vppinfra/clib.h>
42 
43 /* Vector types. */
44 
45 #if defined (__MMX__) || defined (__IWMMXT__) || defined (__aarch64__)
46 #define CLIB_HAVE_VEC64
47 #endif
48 
49 #if defined (__SSE2__) && __GNUC__ >= 4
50 #define CLIB_HAVE_VEC128
51 #endif
52 
53 #if defined (__ALTIVEC__)
54 #define CLIB_HAVE_VEC128
55 #endif
56 
57 /* 128 implies 64 */
58 #ifdef CLIB_HAVE_VEC128
59 #define CLIB_HAVE_VEC64
60 #endif
61 
62 #define _vector_size(n) __attribute__ ((vector_size (n)))
63 
64 #if defined (__aarch64__) || defined (__arm__)
65 typedef unsigned int u32x4 _vector_size (16);
66 typedef u8 u8x16 _vector_size (16);
67 typedef u16 u16x8 _vector_size (16);
68 typedef u32 u32x4 _vector_size (16);
69 typedef u64 u64x2 _vector_size (16);
70 #endif
71 
72 #ifdef CLIB_HAVE_VEC64
73 /* Signed 64 bit. */
74 typedef char i8x8 _vector_size (8);
75 typedef short i16x4 _vector_size (8);
76 typedef int i32x2 _vector_size (8);
77 
78 /* Unsigned 64 bit. */
79 typedef unsigned char u8x8 _vector_size (8);
80 typedef unsigned short u16x4 _vector_size (8);
81 typedef unsigned int u32x2 _vector_size (8);
82 
83 /* Floating point 64 bit. */
84 typedef float f32x2 _vector_size (8);
85 #endif /* CLIB_HAVE_VEC64 */
86 
87 #ifdef CLIB_HAVE_VEC128
88 /* Signed 128 bit. */
89 typedef i8 i8x16 _vector_size (16);
90 typedef i16 i16x8 _vector_size (16);
91 typedef i32 i32x4 _vector_size (16);
92 typedef long long i64x2 _vector_size (16);
93 
94 /* Unsigned 128 bit. */
95 typedef u8 u8x16 _vector_size (16);
96 typedef u16 u16x8 _vector_size (16);
97 typedef u32 u32x4 _vector_size (16);
98 typedef u64 u64x2 _vector_size (16);
99 
100 typedef f32 f32x4 _vector_size (16);
101 typedef f64 f64x2 _vector_size (16);
102 
103 /* Signed 256 bit. */
104 typedef i8 i8x32 _vector_size (32);
105 typedef i16 i16x16 _vector_size (32);
106 typedef i32 i32x8 _vector_size (32);
107 typedef long long i64x4 _vector_size (32);
108 
109 /* Unsigned 256 bit. */
110 typedef u8 u8x32 _vector_size (32);
111 typedef u16 u16x16 _vector_size (32);
112 typedef u32 u32x8 _vector_size (32);
113 typedef u64 u64x4 _vector_size (32);
114 
115 typedef f32 f32x8 _vector_size (32);
116 typedef f64 f64x4 _vector_size (32);
117 #endif /* CLIB_HAVE_VEC128 */
118 
119 /* Vector word sized types. */
120 #ifndef CLIB_VECTOR_WORD_BITS
121 #ifdef CLIB_HAVE_VEC128
122 #define CLIB_VECTOR_WORD_BITS 128
123 #else
124 #define CLIB_VECTOR_WORD_BITS 64
125 #endif
126 #endif /* CLIB_VECTOR_WORD_BITS */
127 
128 /* Vector word sized types. */
129 #if CLIB_VECTOR_WORD_BITS == 128
130 typedef i8 i8x _vector_size (16);
131 typedef i16 i16x _vector_size (16);
132 typedef i32 i32x _vector_size (16);
133 typedef i64 i64x _vector_size (16);
134 typedef u8 u8x _vector_size (16);
135 typedef u16 u16x _vector_size (16);
136 typedef u32 u32x _vector_size (16);
137 typedef u64 u64x _vector_size (16);
138 #endif
139 #if CLIB_VECTOR_WORD_BITS == 64
140 typedef i8 i8x _vector_size (8);
141 typedef i16 i16x _vector_size (8);
142 typedef i32 i32x _vector_size (8);
143 typedef i64 i64x _vector_size (8);
144 typedef u8 u8x _vector_size (8);
145 typedef u16 u16x _vector_size (8);
146 typedef u32 u32x _vector_size (8);
147 typedef u64 u64x _vector_size (8);
148 #endif
149 
150 #undef _vector_size
151 
152 #define VECTOR_WORD_TYPE(t) t##x
153 #define VECTOR_WORD_TYPE_LEN(t) (sizeof (VECTOR_WORD_TYPE(t)) / sizeof (t))
154 
155 /* Union types. */
156 #if (defined(CLIB_HAVE_VEC128) || defined(CLIB_HAVE_VEC64))
157 
158 #define _(t) \
159  typedef union { \
160  t##x as_##t##x; \
161  t as_##t[VECTOR_WORD_TYPE_LEN (t)]; \
162  } t##x##_union_t;
163 
164 _(u8);
165 _(u16);
166 _(u32);
167 _(u64);
168 _(i8);
169 _(i16);
170 _(i32);
171 _(i64);
172 
173 #undef _
174 
175 #endif
176 
177 #ifdef CLIB_HAVE_VEC64
178 
179 #define _(t,n) \
180  typedef union { \
181  t##x##n as_##t##x##n; \
182  t as_##t[n]; \
183  } t##x##n##_union_t; \
184 
185 _(u8, 8);
186 _(u16, 4);
187 _(u32, 2);
188 _(i8, 8);
189 _(i16, 4);
190 _(i32, 2);
191 
192 #undef _
193 
194 #endif
195 
196 #ifdef CLIB_HAVE_VEC128
197 
198 #define _(t,n) \
199  typedef union { \
200  t##x##n as_##t##x##n; \
201  t as_##t[n]; \
202  } t##x##n##_union_t; \
203 
204 _(u8, 16);
205 _(u16, 8);
206 _(u32, 4);
207 _(u64, 2);
208 _(i8, 16);
209 _(i16, 8);
210 _(i32, 4);
211 _(i64, 2);
212 _(f32, 4);
213 _(f64, 2);
214 
215 #undef _
216 
217 #endif
218 
219 /* When we don't have vector types, still define e.g. u32x4_union_t but as an array. */
220 #if !defined(CLIB_HAVE_VEC128) && !defined(CLIB_HAVE_VEC64)
221 
222 #define _(t,n) \
223  typedef union { \
224  t as_##t[n]; \
225  } t##x##n##_union_t; \
226 
227 _(u8, 16);
228 _(u16, 8);
229 _(u32, 4);
230 _(u64, 2);
231 _(i8, 16);
232 _(i16, 8);
233 _(i32, 4);
234 _(i64, 2);
235 
236 #undef _
237 
238 #endif
239 
240 #if defined (__SSE2__) && __GNUC__ >= 4
241 #include <vppinfra/vector_sse2.h>
242 #endif
243 
244 #if defined (__ALTIVEC__)
245 #include <vppinfra/vector_altivec.h>
246 #endif
247 
248 #if defined (__IWMMXT__)
249 #include <vppinfra/vector_iwmmxt.h>
250 #endif
251 
252 #if defined (__aarch64__)
253 #include <vppinfra/vector_neon.h>
254 #endif
255 
256 #if (defined(CLIB_HAVE_VEC128) || defined(CLIB_HAVE_VEC64))
257 #include <vppinfra/vector_funcs.h>
258 #endif
259 
260 #endif /* included_clib_vector_h */
261 
262 /*
263  * fd.io coding-style-patch-verification: ON
264  *
265  * Local Variables:
266  * eval: (c-set-style "gnu")
267  * End:
268  */
float f32
Definition: types.h:143
i32x4
unsigned long long u32x4
Definition: ixge.c:28
int i32
Definition: types.h:81
char i8
Definition: types.h:45
unsigned long u64
Definition: types.h:89
long i64
Definition: types.h:82
unsigned int u32
Definition: types.h:88
vmrglw i16x8
unsigned short u16
Definition: types.h:57
double f64
Definition: types.h:142
unsigned char u8
Definition: types.h:56
short i16
Definition: types.h:46