/*
- * Copyright (c) 2009 Nicira Networks.
+ * Copyright (c) 2009, 2010 Nicira Networks.
*
- * Permission to use, copy, modify, and/or distribute this software for any
- * purpose with or without fee is hereby granted, provided that the above
- * copyright notice and this permission notice appear in all copies.
+ * 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:
*
- * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
- * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
- * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
- * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
- * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
- * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ * 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 ODP_UTIL_H
#define ODP_UTIL_H 1
#include <stdbool.h>
+#include <stddef.h>
#include <stdint.h>
+#include <string.h>
+#include "hash.h"
#include "openflow/openflow.h"
#include "openvswitch/datapath-protocol.h"
+#include "util.h"
struct ds;
+struct flow;
/* The kernel datapaths limits actions to those that fit in a single page of
* memory, so there is no point in allocating more than that. */
enum { MAX_ODP_ACTIONS = 4096 / sizeof(union odp_action) };
+/* odp_actions_add() assumes that MAX_ODP_ACTIONS is a power of 2. */
+BUILD_ASSERT_DECL(IS_POW2(MAX_ODP_ACTIONS));
+
struct odp_actions {
size_t n_actions;
union odp_action actions[MAX_ODP_ACTIONS];
}
}
+void format_odp_flow_key(struct ds *, const struct odp_flow_key *);
void format_odp_action(struct ds *, const union odp_action *);
void format_odp_actions(struct ds *, const union odp_action *actions,
size_t n_actions);
void format_odp_flow_stats(struct ds *, const struct odp_flow_stats *);
void format_odp_flow(struct ds *, const struct odp_flow *);
+void odp_flow_key_from_flow(struct odp_flow_key *, const struct flow *);
+void odp_flow_key_to_flow(const struct odp_flow_key *, struct flow *);
+
+static inline bool
+odp_flow_key_equal(const struct odp_flow_key *a, const struct odp_flow_key *b)
+{
+ return !memcmp(a, b, sizeof *a);
+}
+
+static inline size_t
+odp_flow_key_hash(const struct odp_flow_key *flow, uint32_t basis)
+{
+ BUILD_ASSERT_DECL(!(sizeof *flow % sizeof(uint32_t)));
+ return hash_words((const uint32_t *) flow,
+ sizeof *flow / sizeof(uint32_t), basis);
+}
+
#endif /* odp-util.h */