2 * Copyright (c) 2009, 2010 Nicira Networks.
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at:
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
25 #include "openflow/openflow.h"
26 #include "openvswitch/datapath-protocol.h"
32 /* The kernel datapaths limits actions to those that fit in a single page of
33 * memory, so there is no point in allocating more than that. */
34 enum { MAX_ODP_ACTIONS = 4096 / sizeof(union odp_action) };
36 /* odp_actions_add() assumes that MAX_ODP_ACTIONS is a power of 2. */
37 BUILD_ASSERT_DECL(IS_POW2(MAX_ODP_ACTIONS));
41 union odp_action actions[MAX_ODP_ACTIONS];
45 odp_actions_init(struct odp_actions *actions)
47 actions->n_actions = 0;
50 union odp_action *odp_actions_add(struct odp_actions *actions, uint16_t type);
53 odp_actions_overflow(const struct odp_actions *actions)
55 return actions->n_actions > MAX_ODP_ACTIONS;
58 static inline uint16_t
59 ofp_port_to_odp_port(uint16_t ofp_port)
71 static inline uint16_t
72 odp_port_to_ofp_port(uint16_t odp_port)
84 void format_odp_flow_key(struct ds *, const struct odp_flow_key *);
85 void format_odp_action(struct ds *, const union odp_action *);
86 void format_odp_actions(struct ds *, const union odp_action *actions,
88 void format_odp_flow_stats(struct ds *, const struct odp_flow_stats *);
89 void format_odp_flow(struct ds *, const struct odp_flow *);
91 void odp_flow_key_from_flow(struct odp_flow_key *, const struct flow *);
92 void odp_flow_key_to_flow(const struct odp_flow_key *, struct flow *);
95 odp_flow_key_equal(const struct odp_flow_key *a, const struct odp_flow_key *b)
97 return !memcmp(a, b, sizeof *a);
101 odp_flow_key_hash(const struct odp_flow_key *flow, uint32_t basis)
103 BUILD_ASSERT_DECL(!(sizeof *flow % sizeof(uint32_t)));
104 return hash_words((const uint32_t *) flow,
105 sizeof *flow / sizeof(uint32_t), basis);
108 #endif /* odp-util.h */