Initial commit of Hyperscan

src/nfa/limex_accel.h

@@ -0,0 +1,68 @@
+/*
+ * Copyright (c) 2015, Intel Corporation
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ *  * Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ *  * Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *  * Neither the name of Intel Corporation nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/** \file
+ * \brief Limex NFA: acceleration runtime.
+ *
+ * For the SIMD types (128 bits and above), we pass a pointer to the
+ * implementation NFA structure instead of three masks: otherwise we spend all
+ * our time building stack frames.
+ */
+
+#ifndef LIMEX_ACCEL_H
+#define LIMEX_ACCEL_H
+
+#include "util/simd_utils.h" // for m128 etc
+
+union AccelAux;
+struct LimExNFA128;
+struct LimExNFA256;
+struct LimExNFA384;
+struct LimExNFA512;
+
+size_t doAccel32(u32 s, u32 accel, const u8 *accelTable,
+                 const union AccelAux *aux, const u8 *input, size_t i,
+                 size_t end);
+
+size_t doAccel128(const m128 *s, const struct LimExNFA128 *limex,
+                  const u8 *accelTable, const union AccelAux *aux,
+                  const u8 *input, size_t i, size_t end);
+
+size_t doAccel256(const m256 *s, const struct LimExNFA256 *limex,
+                  const u8 *accelTable, const union AccelAux *aux,
+                  const u8 *input, size_t i, size_t end);
+
+size_t doAccel384(const m384 *s, const struct LimExNFA384 *limex,
+                  const u8 *accelTable, const union AccelAux *aux,
+                  const u8 *input, size_t i, size_t end);
+
+size_t doAccel512(const m512 *s, const struct LimExNFA512 *limex,
+                  const u8 *accelTable, const union AccelAux *aux,
+                  const u8 *input, size_t i, size_t end);
+
+#endif