1 files changed, 98 insertions, 0 deletions
diff --git a/include/odp/api/hash.h b/include/odp/api/hash.h
new file mode 100644
index 000000000..1b2a580ea
--- /dev/null
+++ b/include/odp/api/hash.h
@@ -0,0 +1,98 @@
+/* Copyright (c) 2015, Linaro Limited
+ * All rights reserved.
+ *
+ * SPDX-License-Identifier:	BSD-3-Clause
+ */
+
+/**
+ * @file
+ *
+ * ODP Hash functions
+ */
+
+#ifndef ODP_API_HASH_H_
+#define ODP_API_HASH_H_
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <odp/std_types.h>
+
+/** @defgroup odp_hash ODP HASH FUNCTIONS
+ *  ODP Hash functions
+ *  @{
+ */
+
+/**
+* Calculate CRC-32
+*
+* Calculates CRC-32 over the data. The polynomial is 0x04c11db7.
+*
+* @param data       Pointer to data
+* @param data_len   Data length in bytes
+* @param init_val   CRC generator initialization value
+*
+* @return CRC32 value
+*/
+uint32_t odp_hash_crc32(const void *data, uint32_t data_len, uint32_t init_val);
+
+/**
+* Calculate CRC-32C
+*
+* Calculates CRC-32C (a.k.a. CRC-32 Castagnoli) over the data.
+* The polynomial is 0x1edc6f41.
+*
+* @param data       Pointer to data
+* @param data_len   Data length in bytes
+* @param init_val   CRC generator initialization value
+*
+* @return CRC32C value
+*/
+uint32_t odp_hash_crc32c(const void *data, uint32_t data_len,
+			 uint32_t init_val);
+
+/**
+* CRC parameters
+*
+* Supports CRCs up to 64 bits
+*/
+typedef struct odp_hash_crc_param_t {
+	/** CRC width in bits */
+	uint32_t width;
+	/** Polynomial (stored in 'width' LSB bits) */
+	uint64_t poly;
+	/** 0: don't reflect, 1: reflect bits in input bytes */
+	odp_bool_t reflect_in;
+	/** 0: don't reflect, 1: reflect bits in output bytes */
+	odp_bool_t reflect_out;
+	/** XOR this value to CRC output (stored in 'width' LSB bits) */
+	uint64_t xor_out;
+} odp_hash_crc_param_t;
+
+/**
+* Calculate up to 64 bit CRC using the given parameters
+*
+* Calculates CRC over the data using the given parameters.
+*
+* @param data       Pointer to data
+* @param data_len   Data length in bytes
+* @param init_val   CRC generator initialization value
+* @param crc_param  CRC parameters
+* @param crc        Pointer for CRC output
+*
+* @return 0 on success, <0 on failure (e.g. not supported algorithm)
+*/
+int odp_hash_crc_gen64(const void *data, uint32_t data_len,
+		       uint64_t init_val, odp_hash_crc_param_t *crc_param,
+		       uint64_t *crc);
+
+/**
+ * @}
+ */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif