ceph/src/spdk/dpdk/lib/librte_eal/common/include/arch/x86/rte_byteorder_32.h

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(c) 2010-2014 Intel Corporation
   3  */
   4
   5 #ifndef _RTE_BYTEORDER_X86_H_
   6 #error do not include this file directly, use <rte_byteorder.h> instead
   7 #endif
   8
   9 #ifndef _RTE_BYTEORDER_I686_H_
  10 #define _RTE_BYTEORDER_I686_H_
  11
  12 #include <stdint.h>
  13 #include <rte_byteorder.h>
  14
  15 /*
  16  * An architecture-optimized byte swap for a 64-bit value.
  17  *
  18   * Do not use this function directly. The preferred function is rte_bswap64().
  19  */
  20 /* Compat./Leg. mode */
  21 static inline uint64_t rte_arch_bswap64(uint64_t x)
  22 {
  23         uint64_t ret = 0;
  24         ret |= ((uint64_t)rte_arch_bswap32(x & 0xffffffffUL) << 32);
  25         ret |= ((uint64_t)rte_arch_bswap32((x >> 32) & 0xffffffffUL));
  26         return ret;
  27 }
  28
  29 #endif /* _RTE_BYTEORDER_I686_H_ */