| | 1 | /* |
| | 2 | * Copyright (c) 2007-2013 Nicira, Inc. |
| | 3 | * |
| | 4 | * This program is free software; you can redistribute it and/or |
| | 5 | * modify it under the terms of version 2 of the GNU General Public |
| | 6 | * License as published by the Free Software Foundation. |
| | 7 | * |
| | 8 | * This program is distributed in the hope that it will be useful, but |
| | 9 | * WITHOUT ANY WARRANTY; without even the implied warranty of |
| | 10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| | 11 | * General Public License for more details. |
| | 12 | * |
| | 13 | * You should have received a copy of the GNU General Public License |
| | 14 | * along with this program; if not, write to the Free Software |
| | 15 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
| | 16 | * 02110-1301, USA |
| | 17 | */ |
| | 18 | |
| | 19 | #ifndef FLOW_TABLE_H |
| | 20 | #define FLOW_TABLE_H 1 |
| | 21 | |
| | 22 | #include <linux/kernel.h> |
| | 23 | #include <linux/netlink.h> |
| | 24 | #include <linux/openvswitch.h> |
| | 25 | #include <linux/spinlock.h> |
| | 26 | #include <linux/types.h> |
| | 27 | #include <linux/rcupdate.h> |
| | 28 | #include <linux/if_ether.h> |
| | 29 | #include <linux/in6.h> |
| | 30 | #include <linux/jiffies.h> |
| | 31 | #include <linux/time.h> |
| | 32 | #include <linux/flex_array.h> |
| | 33 | |
| | 34 | #include <net/inet_ecn.h> |
| | 35 | #include <net/ip_tunnels.h> |
| | 36 | |
| | 37 | #include "flow.h" |
| | 38 | |
| | 39 | struct table_instance { |
| | 40 | struct flex_array *buckets; |
| | 41 | unsigned int n_buckets; |
| | 42 | struct rcu_head rcu; |
| | 43 | int node_ver; |
| | 44 | u32 hash_seed; |
| | 45 | bool keep_flows; |
| | 46 | }; |
| | 47 | |
| | 48 | struct flow_table { |
| | 49 | struct table_instance __rcu *ti; |
| | 50 | struct list_head mask_list; |
| | 51 | unsigned long last_rehash; |
| | 52 | unsigned int count; |
| | 53 | }; |
| | 54 | |
| | 55 | int ovs_flow_init(void); |
| | 56 | void ovs_flow_exit(void); |
| | 57 | |
| | 58 | struct sw_flow *ovs_flow_alloc(bool percpu_stats); |
| | 59 | void ovs_flow_free(struct sw_flow *, bool deferred); |
| | 60 | |
| | 61 | int ovs_flow_tbl_init(struct flow_table *); |
| | 62 | int ovs_flow_tbl_count(struct flow_table *table); |
| | 63 | void ovs_flow_tbl_destroy(struct flow_table *table, bool deferred); |
| | 64 | int ovs_flow_tbl_flush(struct flow_table *flow_table); |
| | 65 | |
| | 66 | int ovs_flow_tbl_insert(struct flow_table *table, struct sw_flow *flow, |
| | 67 | struct sw_flow_mask *mask); |
| | 68 | void ovs_flow_tbl_remove(struct flow_table *table, struct sw_flow *flow); |
| | 69 | int ovs_flow_tbl_num_masks(const struct flow_table *table); |
| | 70 | struct sw_flow *ovs_flow_tbl_dump_next(struct table_instance *table, |
| | 71 | u32 *bucket, u32 *idx); |
| | 72 | struct sw_flow *ovs_flow_tbl_lookup_stats(struct flow_table *, |
| | 73 | const struct sw_flow_key *, |
| | 74 | u32 *n_mask_hit); |
| | 75 | struct sw_flow *ovs_flow_tbl_lookup(struct flow_table *, |
| | 76 | const struct sw_flow_key *); |
| | 77 | |
| | 78 | bool ovs_flow_cmp_unmasked_key(const struct sw_flow *flow, |
| | 79 | struct sw_flow_match *match); |
| | 80 | |
| | 81 | void ovs_flow_mask_key(struct sw_flow_key *dst, const struct sw_flow_key *src, |
| | 82 | const struct sw_flow_mask *mask); |
| | 83 | #endif /* flow_table.h */ |
projects / linux-2.6-block.git / blame_incremental