X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=lib%2Fodp-util.h;h=0b34383ce11a53d39051795c6b48acf57acdc2e4;hb=29089a540cfa30a834e3ee19a8b4c52ff2e331b2;hp=08b0a2a413b371112e5a7fc547ea1c50491210de;hpb=6a7e895f948c8cba1ad8f8609e6d628bf6a318f8;p=sliver-openvswitch.git diff --git a/lib/odp-util.h b/lib/odp-util.h index 08b0a2a41..0b34383ce 100644 --- a/lib/odp-util.h +++ b/lib/odp-util.h @@ -1,5 +1,5 @@ /* - * Copyright (c) 2009, 2010, 2011, 2012 Nicira, Inc. + * Copyright (c) 2009, 2010, 2011, 2012, 2013 Nicira, Inc. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. @@ -28,61 +28,57 @@ struct ds; struct flow; +struct flow_tnl; struct nlattr; struct ofpbuf; -struct shash; - -#define OVSP_NONE ((uint16_t) -1) - -static inline uint16_t -ofp_port_to_odp_port(uint16_t ofp_port) -{ - switch (ofp_port) { - case OFPP_LOCAL: - return OVSP_LOCAL; - case OFPP_NONE: - return OVSP_NONE; - default: - return ofp_port; - } -} - -static inline uint16_t -odp_port_to_ofp_port(uint16_t odp_port) -{ - switch (odp_port) { - case OVSP_LOCAL: - return OFPP_LOCAL; - case OVSP_NONE: - return OFPP_NONE; - default: - return odp_port; - } -} +struct simap; + +#define OVSP_NONE UINT32_MAX void format_odp_actions(struct ds *, const struct nlattr *odp_actions, size_t actions_len); -int odp_actions_from_string(const char *, const struct shash *port_names, +int odp_actions_from_string(const char *, const struct simap *port_names, struct ofpbuf *odp_actions); -/* Upper bound on the length of a nlattr-formatted flow key. The longest - * nlattr-formatted flow key would be: +/* The maximum number of bytes that odp_flow_key_from_flow() appends to a + * buffer. This is the upper bound on the length of a nlattr-formatted flow + * key that ovs-vswitchd fully understands. + * + * OVS doesn't insist that ovs-vswitchd and the datapath have exactly the same + * idea of a flow, so therefore this value isn't necessarily an upper bound on + * the length of a flow key that the datapath can pass to ovs-vswitchd. + * + * The longest nlattr-formatted flow key appended by odp_flow_key_from_flow() + * would be: + * + * struct pad nl hdr total + * ------ --- ------ ----- + * OVS_KEY_ATTR_PRIORITY 4 -- 4 8 + * OVS_KEY_ATTR_TUNNEL 0 -- 4 4 + * - OVS_TUNNEL_KEY_ATTR_ID 8 -- 4 12 + * - OVS_TUNNEL_KEY_ATTR_IPV4_SRC 4 -- 4 8 + * - OVS_TUNNEL_KEY_ATTR_IPV4_DST 4 -- 4 8 + * - OVS_TUNNEL_KEY_ATTR_TOS 1 3 4 8 + * - OVS_TUNNEL_KEY_ATTR_TTL 1 3 4 8 + * - OVS_TUNNEL_KEY_ATTR_DONT_FRAGMENT 0 -- 4 4 + * - OVS_TUNNEL_KEY_ATTR_CSUM 0 -- 4 4 + * OVS_KEY_ATTR_IN_PORT 4 -- 4 8 + * OVS_KEY_ATTR_SKB_MARK 4 -- 4 8 + * OVS_KEY_ATTR_ETHERNET 12 -- 4 16 + * OVS_KEY_ATTR_ETHERTYPE 2 2 4 8 (outer VLAN ethertype) + * OVS_KEY_ATTR_8021Q 4 -- 4 8 + * OVS_KEY_ATTR_ENCAP 0 -- 4 4 (VLAN encapsulation) + * OVS_KEY_ATTR_ETHERTYPE 2 2 4 8 (inner VLAN ethertype) + * OVS_KEY_ATTR_IPV6 40 -- 4 44 + * OVS_KEY_ATTR_ICMPV6 2 2 4 8 + * OVS_KEY_ATTR_ND 28 -- 4 32 + * ---------------------------------------------------------- + * total 208 * - * struct pad nl hdr total - * ------ --- ------ ----- - * OVS_KEY_ATTR_PRIORITY 4 -- 4 8 - * OVS_KEY_ATTR_TUN_ID 8 -- 4 12 - * OVS_KEY_ATTR_IN_PORT 4 -- 4 8 - * OVS_KEY_ATTR_ETHERNET 12 -- 4 16 - * OVS_KEY_ATTR_8021Q 4 -- 4 8 - * OVS_KEY_ATTR_ETHERTYPE 2 2 4 8 - * OVS_KEY_ATTR_IPV6 40 -- 4 44 - * OVS_KEY_ATTR_ICMPV6 2 2 4 8 - * OVS_KEY_ATTR_ND 28 -- 4 32 - * ------------------------------------------------- - * total 144 + * We include some slack space in case the calculation isn't quite right or we + * add another field and forget to adjust this value. */ -#define ODPUTIL_FLOW_KEY_BYTES 144 +#define ODPUTIL_FLOW_KEY_BYTES 256 /* A buffer with sufficient size and alignment to hold an nlattr-formatted flow * key. An array of "struct nlattr" might not, in theory, be sufficiently @@ -92,10 +88,11 @@ struct odputil_keybuf { }; void odp_flow_key_format(const struct nlattr *, size_t, struct ds *); -int odp_flow_key_from_string(const char *s, const struct shash *port_names, +int odp_flow_key_from_string(const char *s, const struct simap *port_names, struct ofpbuf *); -void odp_flow_key_from_flow(struct ofpbuf *, const struct flow *); +void odp_flow_key_from_flow(struct ofpbuf *, const struct flow *, + uint32_t odp_in_port); uint32_t odp_flow_key_hash(const struct nlattr *, size_t); @@ -116,6 +113,8 @@ enum odp_key_fitness odp_flow_key_to_flow(const struct nlattr *, size_t, struct flow *); const char *odp_key_fitness_to_string(enum odp_key_fitness); +void commit_odp_tunnel_action(const struct flow *, struct flow *base, + struct ofpbuf *odp_actions); void commit_odp_actions(const struct flow *, struct flow *base, struct ofpbuf *odp_actions); @@ -128,8 +127,10 @@ void commit_odp_actions(const struct flow *, struct flow *base, enum user_action_cookie_type { USER_ACTION_COOKIE_UNSPEC, - USER_ACTION_COOKIE_SFLOW, /* Packet for sFlow sampling. */ - USER_ACTION_COOKIE_SLOW_PATH /* Userspace must process this flow. */ + USER_ACTION_COOKIE_SFLOW, /* Packet for per-bridge sFlow sampling. */ + USER_ACTION_COOKIE_SLOW_PATH, /* Userspace must process this flow. */ + USER_ACTION_COOKIE_FLOW_SAMPLE, /* Packet for per-flow sampling. */ + USER_ACTION_COOKIE_IPFIX, /* Packet for per-bridge IPFIX sampling. */ }; /* user_action_cookie is passed as argument to OVS_ACTION_ATTR_USERSPACE. @@ -148,12 +149,28 @@ union user_action_cookie { uint16_t unused; uint32_t reason; /* enum slow_path_reason. */ } slow_path; + + struct { + uint16_t type; /* USER_ACTION_COOKIE_FLOW_SAMPLE. */ + uint16_t probability; /* Sampling probability. */ + uint32_t collector_set_id; /* ID of IPFIX collector set. */ + uint32_t obs_domain_id; /* Observation Domain ID. */ + uint32_t obs_point_id; /* Observation Point ID. */ + } flow_sample; + + struct { + uint16_t type; /* USER_ACTION_COOKIE_IPFIX. */ + } ipfix; }; -BUILD_ASSERT_DECL(sizeof(union user_action_cookie) == 8); +BUILD_ASSERT_DECL(sizeof(union user_action_cookie) == 16); size_t odp_put_userspace_action(uint32_t pid, - const union user_action_cookie *, + const void *userdata, size_t userdata_size, struct ofpbuf *odp_actions); +void odp_put_tunnel_action(const struct flow_tnl *tunnel, + struct ofpbuf *odp_actions); +void odp_put_skb_mark_action(const uint32_t skb_mark, + struct ofpbuf *odp_actions); /* Reasons why a subfacet might not be fast-pathable. */ enum slow_path_reason {