2 * Copyright (c) 2009, 2010, 2011 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.
24 #include <linux/openvswitch.h>
26 #include "openflow/openflow.h"
35 #define OVSP_NONE ((uint16_t) -1)
37 static inline uint16_t
38 ofp_port_to_odp_port(uint16_t ofp_port)
50 static inline uint16_t
51 odp_port_to_ofp_port(uint16_t odp_port)
62 void format_odp_actions(struct ds *, const struct nlattr *odp_actions,
65 /* Upper bound on the length of a nlattr-formatted flow key. The longest
66 * nlattr-formatted flow key would be:
68 * struct pad nl hdr total
69 * ------ --- ------ -----
70 * OVS_KEY_ATTR_PRIORITY 4 -- 4 8
71 * OVS_KEY_ATTR_TUN_ID 8 -- 4 12
72 * OVS_KEY_ATTR_IN_PORT 4 -- 4 8
73 * OVS_KEY_ATTR_ETHERNET 12 -- 4 16
74 * OVS_KEY_ATTR_8021Q 4 -- 4 8
75 * OVS_KEY_ATTR_ETHERTYPE 2 2 4 8
76 * OVS_KEY_ATTR_IPV6 40 -- 4 44
77 * OVS_KEY_ATTR_ICMPV6 2 2 4 8
78 * OVS_KEY_ATTR_ND 28 -- 4 32
79 * -------------------------------------------------
82 #define ODPUTIL_FLOW_KEY_BYTES 144
84 /* A buffer with sufficient size and alignment to hold an nlattr-formatted flow
85 * key. An array of "struct nlattr" might not, in theory, be sufficiently
86 * aligned because it only contains 16-bit types. */
87 struct odputil_keybuf {
88 uint32_t keybuf[DIV_ROUND_UP(ODPUTIL_FLOW_KEY_BYTES, 4)];
91 void odp_flow_key_format(const struct nlattr *, size_t, struct ds *);
92 int odp_flow_key_from_string(const char *s, const struct shash *port_names,
95 void odp_flow_key_from_flow(struct ofpbuf *, const struct flow *);
96 int odp_flow_key_to_flow(const struct nlattr *, size_t, struct flow *);
98 enum user_action_cookie_type {
99 USER_ACTION_COOKIE_UNSPEC,
100 USER_ACTION_COOKIE_CONTROLLER, /* Packet for controller. */
101 USER_ACTION_COOKIE_SFLOW, /* Packet for sFlow sampling. */
104 /* user_action_cookie is passed as argument to OVS_ACTION_ATTR_USERSPACE.
105 * Since is it passed to kernel as u64, its size has to be 8 bytes. */
106 struct user_action_cookie {
107 uint8_t type; /* enum user_action_cookie_type. */
108 uint8_t n_output; /* No of output ports. used by sflow. */
109 ovs_be16 vlan_tci; /* Used by sFlow */
110 uint32_t data; /* Data is len for OFPP_CONTROLLER action.
111 For sFlow it is port_ifindex. */
114 BUILD_ASSERT_DECL(sizeof(struct user_action_cookie) == 8);
116 size_t odp_put_userspace_action(uint32_t pid,
117 const struct user_action_cookie *,
118 struct ofpbuf *odp_actions);
119 #endif /* odp-util.h */