ip_flow_hash.h

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/*
 * Copyright (c) 2019 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 __IP_FLOW_HASH_H__
#define __IP_FLOW_HASH_H__

/** Flow hash configuration */
#define IP_FLOW_HASH_SRC_ADDR (1<<0)
#define IP_FLOW_HASH_DST_ADDR (1<<1)
#define IP_FLOW_HASH_PROTO (1<<2)
#define IP_FLOW_HASH_SRC_PORT (1<<3)
#define IP_FLOW_HASH_DST_PORT (1<<4)
#define IP_FLOW_HASH_REVERSE_SRC_DST (1<<5)
#define IP_FLOW_HASH_SYMMETRIC (1<<6)

/** Default: 5-tuple without the "reverse" bit */
#define IP_FLOW_HASH_DEFAULT (0x1F)

#define foreach_flow_hash_bit                   \
_(src, IP_FLOW_HASH_SRC_ADDR)                   \
_(dst, IP_FLOW_HASH_DST_ADDR)                   \
_(sport, IP_FLOW_HASH_SRC_PORT)                 \
_(dport, IP_FLOW_HASH_DST_PORT)                 \
_(proto, IP_FLOW_HASH_PROTO)                    \
_(reverse, IP_FLOW_HASH_REVERSE_SRC_DST)        \
_(symmetric, IP_FLOW_HASH_SYMMETRIC)

/**
 * A flow hash configuration is a mask of the flow hash options
 */
typedef u32 flow_hash_config_t;

#endif /* __IP_TYPES_H__ */

/*
 * fd.io coding-style-patch-verification: ON
 *
 * Local Variables:
 * eval: (c-set-style "gnu")
 * End:
 */