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901a517e JR |
1 | /* Copyright (c) 2016 Nicira, Inc. |
2 | * | |
3 | * Licensed under the Apache License, Version 2.0 (the "License"); | |
4 | * you may not use this file except in compliance with the License. | |
5 | * You may obtain a copy of the License at: | |
6 | * | |
7 | * http://www.apache.org/licenses/LICENSE-2.0 | |
8 | * | |
9 | * Unless required by applicable law or agreed to in writing, software | |
10 | * distributed under the License is distributed on an "AS IS" BASIS, | |
11 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | |
12 | * See the License for the specific language governing permissions and | |
13 | * limitations under the License. */ | |
14 | ||
15 | #ifndef OFPROTO_DPIF_XLATE_CACHE_H | |
16 | #define OFPROTO_DPIF_XLATE_CACHE_H 1 | |
17 | ||
18 | #include <net/if.h> | |
19 | #include <sys/socket.h> | |
b2befd5b | 20 | #include <sys/types.h> |
901a517e JR |
21 | #include <netinet/in.h> |
22 | ||
23 | #include "openvswitch/types.h" | |
24 | #include "dp-packet.h" | |
25 | #include "odp-util.h" | |
26 | #include "ofproto/ofproto-dpif-mirror.h" | |
27 | #include "openvswitch/ofpbuf.h" | |
28 | ||
29 | struct bfd; | |
30 | struct bond; | |
31 | struct dpif_flow_stats; | |
32 | struct flow; | |
33 | struct group_dpif; | |
34 | struct mbridge; | |
35 | struct netdev; | |
36 | struct netflow; | |
37 | struct ofpbuf; | |
38 | struct ofproto_dpif; | |
39 | struct ofputil_bucket; | |
40 | struct ofputil_flow_mod; | |
41 | struct rule_dpif; | |
42 | ||
43 | enum xc_type { | |
a027899e | 44 | XC_TABLE, |
901a517e JR |
45 | XC_RULE, |
46 | XC_BOND, | |
47 | XC_NETDEV, | |
48 | XC_NETFLOW, | |
49 | XC_MIRROR, | |
df70a773 | 50 | XC_LEARN, /* Calls back to ofproto. */ |
901a517e | 51 | XC_NORMAL, |
df70a773 | 52 | XC_FIN_TIMEOUT, /* Calls back to ofproto. */ |
901a517e JR |
53 | XC_GROUP, |
54 | XC_TNL_NEIGH, | |
7c12dfc5 | 55 | XC_TUNNEL_HEADER, |
901a517e JR |
56 | }; |
57 | ||
58 | /* xlate_cache entries hold enough information to perform the side effects of | |
59 | * xlate_actions() for a rule, without needing to perform rule translation | |
60 | * from scratch. The primary usage of these is to submit statistics to objects | |
61 | * that a flow relates to, although they may be used for other effects as well | |
62 | * (for instance, refreshing hard timeouts for learned flows). | |
63 | * | |
64 | * An explicit reference is taken to all pointers other than the ones for | |
65 | * struct ofproto_dpif. ofproto_dpif pointers are explicitly protected by | |
66 | * destroying all xlate caches before the ofproto is destroyed. */ | |
67 | struct xc_entry { | |
68 | enum xc_type type; | |
69 | union { | |
a027899e JR |
70 | struct { |
71 | struct ofproto_dpif *ofproto; | |
72 | uint8_t id; | |
73 | bool match; /* or miss. */ | |
74 | } table; | |
901a517e JR |
75 | struct rule_dpif *rule; |
76 | struct { | |
77 | struct netdev *tx; | |
78 | struct netdev *rx; | |
79 | struct bfd *bfd; | |
80 | } dev; | |
81 | struct { | |
82 | struct netflow *netflow; | |
83 | struct flow *flow; | |
84 | ofp_port_t iface; | |
85 | } nf; | |
86 | struct { | |
87 | struct mbridge *mbridge; | |
88 | mirror_mask_t mirrors; | |
89 | } mirror; | |
90 | struct { | |
91 | struct bond *bond; | |
92 | struct flow *flow; | |
93 | uint16_t vid; | |
94 | } bond; | |
95 | struct { | |
2c7ee524 | 96 | struct ofproto_flow_mod *ofm; |
4c71600d | 97 | unsigned limit; |
901a517e JR |
98 | } learn; |
99 | struct { | |
100 | struct ofproto_dpif *ofproto; | |
101 | ofp_port_t in_port; | |
102 | struct eth_addr dl_src; | |
103 | int vlan; | |
104 | bool is_gratuitous_arp; | |
105 | } normal; | |
106 | struct { | |
107 | struct rule_dpif *rule; | |
108 | uint16_t idle; | |
109 | uint16_t hard; | |
110 | } fin; | |
111 | struct { | |
112 | struct group_dpif *group; | |
113 | struct ofputil_bucket *bucket; | |
114 | } group; | |
115 | struct { | |
116 | char br_name[IFNAMSIZ]; | |
117 | struct in6_addr d_ipv6; | |
118 | } tnl_neigh_cache; | |
df70a773 JR |
119 | struct { |
120 | struct ofproto_dpif *ofproto; | |
121 | struct ofproto_async_msg *am; | |
122 | } controller; | |
7c12dfc5 SC |
123 | struct { |
124 | enum { | |
125 | ADD, | |
126 | REMOVE, | |
127 | } operation; | |
128 | uint16_t hdr_size; | |
129 | } tunnel_hdr; | |
901a517e JR |
130 | }; |
131 | }; | |
132 | ||
133 | #define XC_ENTRY_FOR_EACH(ENTRY, ENTRIES) \ | |
134 | for (ENTRY = ofpbuf_try_pull(ENTRIES, sizeof *ENTRY); \ | |
135 | ENTRY; \ | |
136 | ENTRY = ofpbuf_try_pull(ENTRIES, sizeof *ENTRY)) | |
137 | ||
138 | struct xlate_cache { | |
139 | struct ofpbuf entries; | |
140 | }; | |
141 | ||
1f4a8933 | 142 | void xlate_cache_init(struct xlate_cache *); |
901a517e JR |
143 | struct xlate_cache *xlate_cache_new(void); |
144 | struct xc_entry *xlate_cache_add_entry(struct xlate_cache *, enum xc_type); | |
7c12dfc5 SC |
145 | void xlate_push_stats_entry(struct xc_entry *, struct dpif_flow_stats *); |
146 | void xlate_push_stats(struct xlate_cache *, struct dpif_flow_stats *); | |
901a517e JR |
147 | void xlate_cache_clear_entry(struct xc_entry *); |
148 | void xlate_cache_clear(struct xlate_cache *); | |
1f4a8933 | 149 | void xlate_cache_uninit(struct xlate_cache *); |
901a517e | 150 | void xlate_cache_delete(struct xlate_cache *); |
7c12dfc5 | 151 | void xlate_cache_steal_entries(struct xlate_cache *, struct xlate_cache *); |
901a517e JR |
152 | |
153 | #endif /* ofproto-dpif-xlate-cache.h */ |