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+/***********************license start***************
+ * Copyright (c) 2003-2008 Cavium Networks (support@cavium.com). All rights
+ * reserved.
+ *
+ *
+ * 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 Cavium Networks nor the names of
+ * its contributors may be used to endorse or promote products
+ * derived from this software without specific prior written
+ * permission.
+ *
+ * TO THE MAXIMUM EXTENT PERMITTED BY LAW, THE SOFTWARE IS PROVIDED "AS IS"
+ * AND WITH ALL FAULTS AND CAVIUM NETWORKS MAKES NO PROMISES, REPRESENTATIONS
+ * OR WARRANTIES, EITHER EXPRESS, IMPLIED, STATUTORY, OR OTHERWISE, WITH
+ * RESPECT TO THE SOFTWARE, INCLUDING ITS CONDITION, ITS CONFORMITY TO ANY
+ * REPRESENTATION OR DESCRIPTION, OR THE EXISTENCE OF ANY LATENT OR PATENT
+ * DEFECTS, AND CAVIUM SPECIFICALLY DISCLAIMS ALL IMPLIED (IF ANY) WARRANTIES
+ * OF TITLE, MERCHANTABILITY, NONINFRINGEMENT, FITNESS FOR A PARTICULAR
+ * PURPOSE, LACK OF VIRUSES, ACCURACY OR COMPLETENESS, QUIET ENJOYMENT, QUIET
+ * POSSESSION OR CORRESPONDENCE TO DESCRIPTION. THE ENTIRE RISK ARISING OUT
+ * OF USE OR PERFORMANCE OF THE SOFTWARE LIES WITH YOU.
+ *
+ *
+ * For any questions regarding licensing please contact marketing@caviumnetworks.com
+ *
+ ***********************license end**************************************/
+
+
+
+
+
+
+/**
+ * @file
+ *
+ * Utility functions for endian swapping
+ *
+ * <hr>$Revision: 32636 $<hr>
+ */
+
+#ifndef __CVMX_SWAP_H__
+#define __CVMX_SWAP_H__
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+
+/**
+ * Byte swap a 16 bit number
+ *
+ * @param x 16 bit number
+ * @return Byte swapped result
+ */
+static inline uint16_t cvmx_swap16(uint16_t x)
+{
+ return ((uint16_t)((((uint16_t)(x) & (uint16_t)0x00ffU) << 8) |
+ (((uint16_t)(x) & (uint16_t)0xff00U) >> 8) ));
+}
+
+
+/**
+ * Byte swap a 32 bit number
+ *
+ * @param x 32 bit number
+ * @return Byte swapped result
+ */
+static inline uint32_t cvmx_swap32(uint32_t x)
+{
+ return ((uint32_t)((((uint32_t)(x) & (uint32_t)0x000000ffUL) << 24) |
+ (((uint32_t)(x) & (uint32_t)0x0000ff00UL) << 8) |
+ (((uint32_t)(x) & (uint32_t)0x00ff0000UL) >> 8) |
+ (((uint32_t)(x) & (uint32_t)0xff000000UL) >> 24) ));
+}
+
+
+/**
+ * Byte swap a 64 bit number
+ *
+ * @param x 64 bit number
+ * @return Byte swapped result
+ */
+static inline uint64_t cvmx_swap64(uint64_t x)
+{
+ return ((x >> 56) |
+ (((x >> 48) & 0xfful) << 8) |
+ (((x >> 40) & 0xfful) << 16) |
+ (((x >> 32) & 0xfful) << 24) |
+ (((x >> 24) & 0xfful) << 32) |
+ (((x >> 16) & 0xfful) << 40) |
+ (((x >> 8) & 0xfful) << 48) |
+ (((x >> 0) & 0xfful) << 56));
+}
+
+
+#if __BYTE_ORDER == __BIG_ENDIAN
+
+#define cvmx_cpu_to_le16(x) cvmx_swap16(x)
+#define cvmx_cpu_to_le32(x) cvmx_swap32(x)
+#define cvmx_cpu_to_le64(x) cvmx_swap64(x)
+
+#define cvmx_cpu_to_be16(x) (x)
+#define cvmx_cpu_to_be32(x) (x)
+#define cvmx_cpu_to_be64(x) (x)
+
+#else
+
+#define cvmx_cpu_to_le16(x) (x)
+#define cvmx_cpu_to_le32(x) (x)
+#define cvmx_cpu_to_le64(x) (x)
+
+#define cvmx_cpu_to_be16(x) cvmx_swap16(x)
+#define cvmx_cpu_to_be32(x) cvmx_swap32(x)
+#define cvmx_cpu_to_be64(x) cvmx_swap64(x)
+
+#endif
+
+#define cvmx_le16_to_cpu(x) cvmx_cpu_to_le16(x)
+#define cvmx_le32_to_cpu(x) cvmx_cpu_to_le32(x)
+#define cvmx_le64_to_cpu(x) cvmx_cpu_to_le64(x)
+
+#define cvmx_be16_to_cpu(x) cvmx_cpu_to_be16(x)
+#define cvmx_be32_to_cpu(x) cvmx_cpu_to_be32(x)
+#define cvmx_be64_to_cpu(x) cvmx_cpu_to_be64(x)
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __CVMX_SWAP_H__ */
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