--- /dev/null
+/*
+ * Copyright (c) 2015 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.
+ */
+/*
+ * pipeline.h: software pipeline infrastructure
+ *
+ * Copyright (c) 2010 Eliot Dresselhaus
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sublicense, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+ * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+ * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#ifndef included_clib_pipeline_h
+#define included_clib_pipeline_h
+
+#define clib_pipeline_stage(F,TYPE,ARG,I,BODY) \
+ always_inline void F##_inline (void * _, u32 I) \
+ { TYPE ARG = _; { BODY; } } \
+ never_inline void F##_no_inline (TYPE ARG, u32 I) \
+ { F##_inline (ARG, I); }
+
+#define clib_pipeline_stage_static(F,TYPE,ARG,I,BODY) \
+ static_always_inline void F##_inline (void * _, u32 I) \
+ { TYPE ARG = _; { BODY; } } \
+ never_inline void F##_no_inline (TYPE ARG, u32 I) \
+ { F##_inline (ARG, I); }
+
+#define clib_pipeline_stage_no_inline(F,TYPE,ARG,I,BODY) \
+ never_inline void F##_no_inline (void * _, u32 I) \
+ { TYPE ARG = _; { BODY; } } \
+ never_inline void F##_inline (TYPE ARG, u32 I) \
+ { F##_no_inline (ARG, I); }
+
+#define _clib_pipeline_var(v) _clib_pipeline_##v
+
+#define clib_pipeline_stage_execute(F,A,I,S) \
+ F##_##S (A, _clib_pipeline_var(i) - (I))
+
+#define clib_pipeline_main_stage(F,A,I) \
+ clib_pipeline_stage_execute (F, A, I, inline)
+#define clib_pipeline_init_stage(F,A,I) \
+ if (_clib_pipeline_var(i) >= (I)) clib_pipeline_stage_execute (F, A, I, no_inline)
+#define clib_pipeline_exit_stage(F,A,I) \
+ if (_clib_pipeline_var(i) >= (I) && _clib_pipeline_var(i) - (I) < _clib_pipeline_var(n_vectors)) \
+ clib_pipeline_stage_execute (F, A, I, no_inline)
+
+#define clib_pipeline_init_loop \
+ for (_clib_pipeline_var(i) = 0; \
+ _clib_pipeline_var(i) < \
+ clib_min (_clib_pipeline_var(n_stages) - 1, \
+ _clib_pipeline_var(n_vectors)); \
+ _clib_pipeline_var(i)++)
+
+#define clib_pipeline_main_loop \
+ for (; _clib_pipeline_var(i) < _clib_pipeline_var(n_vectors); \
+ _clib_pipeline_var(i)++)
+
+#define clib_pipeline_exit_loop \
+ for (; _clib_pipeline_var(i) < (_clib_pipeline_var(n_vectors) \
+ + _clib_pipeline_var(n_stages) - 1); \
+ _clib_pipeline_var(i)++)
+
+#define clib_pipeline_run_2_stage(N,ARG,STAGE0,STAGE1) \
+do { \
+ uword _clib_pipeline_var(n_vectors) = (N); \
+ uword _clib_pipeline_var(n_stages) = 2; \
+ uword _clib_pipeline_var(i); \
+ \
+ clib_pipeline_init_loop \
+ { \
+ clib_pipeline_init_stage (STAGE0, ARG, 0); \
+ } \
+ \
+ clib_pipeline_main_loop \
+ { \
+ clib_pipeline_main_stage (STAGE0, ARG, 0); \
+ clib_pipeline_main_stage (STAGE1, ARG, 1); \
+ } \
+ \
+ clib_pipeline_exit_loop \
+ { \
+ clib_pipeline_exit_stage (STAGE1, ARG, 1); \
+ } \
+} while (0)
+
+#define clib_pipeline_run_3_stage(N,ARG,STAGE0,STAGE1,STAGE2) \
+do { \
+ uword _clib_pipeline_var(n_vectors) = (N); \
+ uword _clib_pipeline_var(n_stages) = 3; \
+ uword _clib_pipeline_var(i); \
+ \
+ clib_pipeline_init_loop \
+ { \
+ clib_pipeline_init_stage (STAGE0, ARG, 0); \
+ clib_pipeline_init_stage (STAGE1, ARG, 1); \
+ } \
+ \
+ clib_pipeline_main_loop \
+ { \
+ clib_pipeline_main_stage (STAGE0, ARG, 0); \
+ clib_pipeline_main_stage (STAGE1, ARG, 1); \
+ clib_pipeline_main_stage (STAGE2, ARG, 2); \
+ } \
+ \
+ clib_pipeline_exit_loop \
+ { \
+ clib_pipeline_exit_stage (STAGE1, ARG, 1); \
+ clib_pipeline_exit_stage (STAGE2, ARG, 2); \
+ } \
+} while (0)
+
+#define clib_pipeline_run_4_stage(N,ARG,STAGE0,STAGE1,STAGE2,STAGE3) \
+do { \
+ uword _clib_pipeline_var(n_vectors) = (N); \
+ uword _clib_pipeline_var(n_stages) = 4; \
+ uword _clib_pipeline_var(i); \
+ \
+ clib_pipeline_init_loop \
+ { \
+ clib_pipeline_init_stage (STAGE0, ARG, 0); \
+ clib_pipeline_init_stage (STAGE1, ARG, 1); \
+ clib_pipeline_init_stage (STAGE2, ARG, 2); \
+ } \
+ \
+ clib_pipeline_main_loop \
+ { \
+ clib_pipeline_main_stage (STAGE0, ARG, 0); \
+ clib_pipeline_main_stage (STAGE1, ARG, 1); \
+ clib_pipeline_main_stage (STAGE2, ARG, 2); \
+ clib_pipeline_main_stage (STAGE3, ARG, 3); \
+ } \
+ \
+ clib_pipeline_exit_loop \
+ { \
+ clib_pipeline_exit_stage (STAGE1, ARG, 1); \
+ clib_pipeline_exit_stage (STAGE2, ARG, 2); \
+ clib_pipeline_exit_stage (STAGE3, ARG, 3); \
+ } \
+} while (0)
+
+#endif /* included_clib_pipeline_h */
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */
Code Review / vpp.git / blobdiff