1 /* SPDX-License-Identifier: GPL-2.0-only */
3 * Copyright (c) 2007-2013 Nicira, Inc.
9 #include <linux/kernel.h>
10 #include <linux/netlink.h>
11 #include <linux/openvswitch.h>
12 #include <linux/spinlock.h>
13 #include <linux/types.h>
14 #include <linux/rcupdate.h>
15 #include <linux/if_ether.h>
16 #include <linux/in6.h>
17 #include <linux/jiffies.h>
18 #include <linux/time.h>
20 #include <net/inet_ecn.h>
21 #include <net/ip_tunnels.h>
25 struct mask_cache_entry
{
33 struct sw_flow_mask __rcu
*masks
[];
36 struct table_instance
{
37 struct hlist_head
*buckets
;
38 unsigned int n_buckets
;
46 struct table_instance __rcu
*ti
;
47 struct table_instance __rcu
*ufid_ti
;
48 struct mask_cache_entry __percpu
*mask_cache
;
49 struct mask_array __rcu
*mask_array
;
50 unsigned long last_rehash
;
52 unsigned int ufid_count
;
55 extern struct kmem_cache
*flow_stats_cache
;
57 int ovs_flow_init(void);
58 void ovs_flow_exit(void);
60 struct sw_flow
*ovs_flow_alloc(void);
61 void ovs_flow_free(struct sw_flow
*, bool deferred
);
63 int ovs_flow_tbl_init(struct flow_table
*);
64 int ovs_flow_tbl_count(const struct flow_table
*table
);
65 void ovs_flow_tbl_destroy(struct flow_table
*table
);
66 int ovs_flow_tbl_flush(struct flow_table
*flow_table
);
68 int ovs_flow_tbl_insert(struct flow_table
*table
, struct sw_flow
*flow
,
69 const struct sw_flow_mask
*mask
);
70 void ovs_flow_tbl_remove(struct flow_table
*table
, struct sw_flow
*flow
);
71 int ovs_flow_tbl_num_masks(const struct flow_table
*table
);
72 struct sw_flow
*ovs_flow_tbl_dump_next(struct table_instance
*table
,
73 u32
*bucket
, u32
*idx
);
74 struct sw_flow
*ovs_flow_tbl_lookup_stats(struct flow_table
*,
75 const struct sw_flow_key
*,
78 struct sw_flow
*ovs_flow_tbl_lookup(struct flow_table
*,
79 const struct sw_flow_key
*);
80 struct sw_flow
*ovs_flow_tbl_lookup_exact(struct flow_table
*tbl
,
81 const struct sw_flow_match
*match
);
82 struct sw_flow
*ovs_flow_tbl_lookup_ufid(struct flow_table
*,
83 const struct sw_flow_id
*);
85 bool ovs_flow_cmp(const struct sw_flow
*, const struct sw_flow_match
*);
87 void ovs_flow_mask_key(struct sw_flow_key
*dst
, const struct sw_flow_key
*src
,
88 bool full
, const struct sw_flow_mask
*mask
);
89 #endif /* flow_table.h */