X-Git-Url: http://git.cascardo.eti.br/?a=blobdiff_plain;f=ofproto%2Fofproto-dpif.h;h=0064178dc84c3988186845efc601c76afd314ea6;hb=d0a46cb4608e632f5028034762f0adde2ce947a0;hp=a74146b80abece6b05e7ffcc1540ed578a2f8319;hpb=ec89fc6ff8367c446da811bbf74626c5bf6c2b30;p=cascardo%2Fovs.git diff --git a/ofproto/ofproto-dpif.h b/ofproto/ofproto-dpif.h index a74146b80..0064178dc 100644 --- a/ofproto/ofproto-dpif.h +++ b/ofproto/ofproto-dpif.h @@ -1,4 +1,4 @@ -/* Copyright (c) 2009, 2010, 2011, 2012, 2013 Nicira, Inc. +/* Copyright (c) 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016 Nicira, Inc. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. @@ -17,65 +17,220 @@ #include +#include "fail-open.h" #include "hmapx.h" -#include "ofproto/ofproto-provider.h" +#include "odp-util.h" +#include "ofp-util.h" #include "ovs-thread.h" +#include "ofproto-provider.h" #include "timer.h" #include "util.h" #include "ovs-thread.h" +/* Priority for internal rules created to handle recirculation */ +#define RECIRC_RULE_PRIORITY 20 + union user_action_cookie; +struct dpif_flow_stats; +struct ofproto; +struct ofproto_async_msg; struct ofproto_dpif; struct ofport_dpif; struct dpif_backer; +struct OVS_LOCKABLE rule_dpif; +struct OVS_LOCKABLE group_dpif; + +/* Number of implemented OpenFlow tables. */ +enum { N_TABLES = 255 }; +enum { TBL_INTERNAL = N_TABLES - 1 }; /* Used for internal hidden rules. */ +BUILD_ASSERT_DECL(N_TABLES >= 2 && N_TABLES <= 255); + +/* Ofproto-dpif -- DPIF based ofproto implementation. + * + * Ofproto-dpif provides an ofproto implementation for those platforms which + * implement the netdev and dpif interface defined in netdev.h and dpif.h. The + * most important of which is the Linux Kernel Module (dpif-linux), but + * alternatives are supported such as a userspace only implementation + * (dpif-netdev), and a dummy implementation used for unit testing. + * + * Ofproto-dpif is divided into three major chunks. + * + * - ofproto-dpif.c + * The main ofproto-dpif module is responsible for implementing the + * provider interface, installing and removing datapath flows, maintaining + * packet statistics, running protocols (BFD, LACP, STP, etc), and + * configuring relevant submodules. + * + * - ofproto-dpif-upcall.c + * Ofproto-dpif-upcall is responsible for retrieving upcalls from the kernel, + * processing miss upcalls, and handing more complex ones up to the main + * ofproto-dpif module. Miss upcall processing boils down to figuring out + * what each packet's actions are, executing them (i.e. asking the kernel to + * forward it), and handing it up to ofproto-dpif to decided whether or not + * to install a kernel flow. + * + * - ofproto-dpif-xlate.c + * Ofproto-dpif-xlate is responsible for translating OpenFlow actions into + * datapath actions. */ + +/* Stores the various features which the corresponding backer supports. */ +struct dpif_backer_support { + /* True if the datapath supports variable-length + * OVS_USERSPACE_ATTR_USERDATA in OVS_ACTION_ATTR_USERSPACE actions. + * False if the datapath supports only 8-byte (or shorter) userdata. */ + bool variable_length_userdata; + + /* True if the datapath supports masked data in OVS_ACTION_ATTR_SET + * actions. */ + bool masked_set_action; + + /* True if the datapath supports tnl_push and pop actions. */ + bool tnl_push_pop; + + /* True if the datapath supports OVS_FLOW_ATTR_UFID. */ + bool ufid; -struct rule_dpif { - struct rule up; - - /* These statistics: - * - * - Do include packets and bytes from facets that have been deleted or - * whose own statistics have been folded into the rule. - * - * - Do include packets and bytes sent "by hand" that were accounted to - * the rule without any facet being involved (this is a rare corner - * case in rule_execute()). - * - * - Do not include packet or bytes that can be obtained from any facet's - * packet_count or byte_count member or that can be obtained from the - * datapath by, e.g., dpif_flow_get() for any subfacet. - */ - struct ovs_mutex stats_mutex; - uint64_t packet_count OVS_GUARDED; /* Number of packets received. */ - uint64_t byte_count OVS_GUARDED; /* Number of bytes received. */ + /* Each member represents support for related OVS_KEY_ATTR_* fields. */ + struct odp_support odp; }; -static inline struct rule_dpif *rule_dpif_cast(const struct rule *rule) -{ - return rule ? CONTAINER_OF(rule, struct rule_dpif, up) : NULL; -} +bool ofproto_dpif_get_enable_ufid(const struct dpif_backer *backer); +struct dpif_backer_support *ofproto_dpif_get_support(const struct ofproto_dpif *); + +cls_version_t ofproto_dpif_get_tables_version(struct ofproto_dpif *); + +struct rule_dpif *rule_dpif_lookup_from_table(struct ofproto_dpif *, + cls_version_t, struct flow *, + struct flow_wildcards *, + const struct dpif_flow_stats *, + uint8_t *table_id, + ofp_port_t in_port, + bool may_packet_in, + bool honor_table_miss); + +static inline void rule_dpif_ref(struct rule_dpif *); +static inline void rule_dpif_unref(struct rule_dpif *); + +void rule_dpif_credit_stats(struct rule_dpif *rule , + const struct dpif_flow_stats *); -struct rule_dpif *rule_dpif_lookup_in_table(struct ofproto_dpif *, - const struct flow *, - struct flow_wildcards *, - uint8_t table_id); +static inline bool rule_dpif_is_fail_open(const struct rule_dpif *); +static inline bool rule_dpif_is_table_miss(const struct rule_dpif *); +static inline bool rule_dpif_is_internal(const struct rule_dpif *); -void rule_credit_stats(struct rule_dpif *, const struct dpif_flow_stats *); +uint8_t rule_dpif_get_table(const struct rule_dpif *); -struct rule_dpif *choose_miss_rule(enum ofputil_port_config, - struct rule_dpif *miss_rule, - struct rule_dpif *no_packet_in_rule); +bool table_is_internal(uint8_t table_id); + +const struct rule_actions *rule_dpif_get_actions(const struct rule_dpif *); +void rule_set_recirc_id(struct rule *, uint32_t id); + +ovs_be64 rule_dpif_get_flow_cookie(const struct rule_dpif *rule); + +void rule_dpif_reduce_timeouts(struct rule_dpif *rule, uint16_t idle_timeout, + uint16_t hard_timeout); + +void group_dpif_credit_stats(struct group_dpif *, + struct ofputil_bucket *, + const struct dpif_flow_stats *); +bool group_dpif_lookup(struct ofproto_dpif *ofproto, uint32_t group_id, + struct group_dpif **group); + +void group_dpif_get_buckets(const struct group_dpif *group, + const struct ovs_list **buckets); +enum ofp11_group_type group_dpif_get_type(const struct group_dpif *group); +const char *group_dpif_get_selection_method(const struct group_dpif *group); +uint64_t group_dpif_get_selection_method_param(const struct group_dpif *group); +const struct field_array *group_dpif_get_fields(const struct group_dpif *group); bool ofproto_has_vlan_splinters(const struct ofproto_dpif *); ofp_port_t vsp_realdev_to_vlandev(const struct ofproto_dpif *, ofp_port_t realdev_ofp_port, ovs_be16 vlan_tci); -bool vsp_adjust_flow(const struct ofproto_dpif *, struct flow *); +bool vsp_adjust_flow(const struct ofproto_dpif *, struct flow *, + struct dp_packet *packet); -void ofproto_dpif_send_packet_in(struct ofproto_dpif *, - struct ofputil_packet_in *pin); -void ofproto_dpif_flow_mod(struct ofproto_dpif *, struct ofputil_flow_mod *); +int ofproto_dpif_execute_actions(struct ofproto_dpif *, const struct flow *, + struct rule_dpif *, const struct ofpact *, + size_t ofpacts_len, struct dp_packet *); +int ofproto_dpif_execute_actions__(struct ofproto_dpif *, const struct flow *, + struct rule_dpif *, const struct ofpact *, + size_t ofpacts_len, int recurse, + int resubmits, struct dp_packet *); +void ofproto_dpif_send_async_msg(struct ofproto_dpif *, + struct ofproto_async_msg *); +bool ofproto_dpif_wants_packet_in_on_miss(struct ofproto_dpif *); +int ofproto_dpif_send_packet(const struct ofport_dpif *, struct dp_packet *); +void ofproto_dpif_flow_mod(struct ofproto_dpif *, + const struct ofputil_flow_mod *); +struct rule_dpif *ofproto_dpif_refresh_rule(struct rule_dpif *); struct ofport_dpif *odp_port_to_ofport(const struct dpif_backer *, odp_port_t); +struct ofport_dpif *ofp_port_to_ofport(const struct ofproto_dpif *, + ofp_port_t); + +bool ofproto_dpif_backer_enabled(struct dpif_backer* backer); + +int ofproto_dpif_add_internal_flow(struct ofproto_dpif *, + const struct match *, int priority, + uint16_t idle_timeout, + const struct ofpbuf *ofpacts, + struct rule **rulep); +int ofproto_dpif_delete_internal_flow(struct ofproto_dpif *, struct match *, + int priority); + +const struct uuid *ofproto_dpif_get_uuid(const struct ofproto_dpif *); + +/* struct rule_dpif has struct rule as it's first member. */ +#define RULE_CAST(RULE) ((struct rule *)RULE) +#define GROUP_CAST(GROUP) ((struct ofgroup *)GROUP) + +static inline struct group_dpif* group_dpif_ref(struct group_dpif *group) +{ + if (group) { + ofproto_group_ref(GROUP_CAST(group)); + } + return group; +} + +static inline void group_dpif_unref(struct group_dpif *group) +{ + if (group) { + ofproto_group_unref(GROUP_CAST(group)); + } +} + +static inline void rule_dpif_ref(struct rule_dpif *rule) +{ + if (rule) { + ofproto_rule_ref(RULE_CAST(rule)); + } +} + +static inline void rule_dpif_unref(struct rule_dpif *rule) +{ + if (rule) { + ofproto_rule_unref(RULE_CAST(rule)); + } +} + +static inline bool rule_dpif_is_fail_open(const struct rule_dpif *rule) +{ + return is_fail_open_rule(RULE_CAST(rule)); +} + +static inline bool rule_dpif_is_table_miss(const struct rule_dpif *rule) +{ + return rule_is_table_miss(RULE_CAST(rule)); +} + +/* Returns true if 'rule' is an internal rule, false otherwise. */ +static inline bool rule_dpif_is_internal(const struct rule_dpif *rule) +{ + return RULE_CAST(rule)->table_id == TBL_INTERNAL; +} + +#undef RULE_CAST +bool ovs_native_tunneling_is_on(struct ofproto_dpif *ofproto); #endif /* ofproto-dpif.h */