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/*
* Copyright (c) 2018 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.
*/
#ifndef __included_lb_hash_hash_h__
#define __included_lb_hash_hash_h__
#include <vppinfra/crc32.h>
#include <vppinfra/xxhash.h>
#if defined(clib_crc32c_uses_intrinsics) && !defined (__i386__)
static_always_inline u32
lb_hash_hash (u64 k0, u64 k1, u64 k2, u64 k3, u64 k4)
{
u64 val = 0;
val = clib_crc32c_u64 (val, k0);
val = clib_crc32c_u64 (val, k1);
val = clib_crc32c_u64 (val, k2);
val = clib_crc32c_u64 (val, k3);
val = clib_crc32c_u64 (val, k4);
return (u32) val;
}
/* Note: k0 is u64 and k1 is u32 */
static_always_inline u32
lb_hash_hash_2_tuples (u64 k0, u32 k1)
{
u64 val = 0;
val = clib_crc32c_u64 (val, k0);
val = clib_crc32c_u32 (val, k1);
return (u32) val;
}
#else
static_always_inline u32
lb_hash_hash (u64 k0, u64 k1, u64 k2, u64 k3, u64 k4)
{
u64 tmp = k0 ^ k1 ^ k2 ^ k3 ^ k4;
return (u32) clib_xxhash (tmp);
}
/* Note: k0 is u64 and k1 is u32 */
static_always_inline u32
lb_hash_hash_2_tuples (u64 k0, u32 k1)
{
u64 tmp = k0 ^ k1;
return (u32) clib_xxhash (tmp);
}
#endif
#endif /* __included_lb_hash_hash_h__ */
/*
* fd.io coding-style-patch-verification: ON
*
* Local Variables:
* eval: (c-set-style "gnu")
* End:
*/
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