-/* 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.
#include <stdint.h>
+#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;
-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.
- */
- uint64_t packet_count; /* Number of packets received. */
- uint64_t byte_count; /* Number of bytes received. */
+ /* 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;
+
+ /* 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 *);
+
+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 *);
+
+uint8_t rule_dpif_get_table(const struct rule_dpif *);
-struct rule_dpif *rule_dpif_lookup_in_table(struct ofproto_dpif *,
- const struct flow *,
- struct flow_wildcards *,
- uint8_t table_id);
+bool table_is_internal(uint8_t table_id);
-struct rule_dpif *rule_dpif_miss_rule(struct ofproto_dpif *ofproto,
- const struct flow *);
+const struct rule_actions *rule_dpif_get_actions(const struct rule_dpif *);
+void rule_set_recirc_id(struct rule *, uint32_t id);
-void rule_credit_stats(struct rule_dpif *, const struct dpif_flow_stats *);
+ovs_be64 rule_dpif_get_flow_cookie(const struct rule_dpif *rule);
-void ofproto_trace(struct ofproto_dpif *, const struct flow *,
- const struct ofpbuf *packet, struct ds *);
+void rule_dpif_reduce_timeouts(struct rule_dpif *rule, uint16_t idle_timeout,
+ uint16_t hard_timeout);
-size_t put_userspace_action(const struct ofproto_dpif *,
- struct ofpbuf *odp_actions, const struct flow *,
- const union user_action_cookie *,
- const size_t cookie_size);
+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 *,
+ struct dp_packet *packet);
+
+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 *);
+\f
+/* 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));
+}
-int ofproto_dpif_queue_to_priority(const struct ofproto_dpif *,
- uint32_t queue_id, uint32_t *priority);
+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;
+}
-void ofproto_dpif_send_packet_in(struct ofproto_dpif *,
- struct ofputil_packet_in *pin);
-int ofproto_dpif_flow_mod(struct ofproto_dpif *, struct ofputil_flow_mod *);
+#undef RULE_CAST
+bool ovs_native_tunneling_is_on(struct ofproto_dpif *ofproto);
#endif /* ofproto-dpif.h */
projects / cascardo / ovs.git / blobdiff