uint16_t max_ports; /* Max possible OpenFlow port num, plus one. */
/* Flow tables. */
+ long long int eviction_group_timer; /* For rate limited reheapification. */
struct oftable *tables;
int n_tables;
unsigned long int *vlan_bitmap; /* 4096-bit bitmap of in-use VLANs. */
bool vlans_changed; /* True if new VLANs are in use. */
int min_mtu; /* Current MTU of non-internal ports. */
+
+ /* Groups. */
+ struct ovs_rwlock groups_rwlock;
+ struct hmap groups OVS_GUARDED; /* Contains "struct ofgroup"s. */
+ uint32_t n_groups[4] OVS_GUARDED; /* # of existing groups of each type. */
+ struct ofputil_group_features ogf;
};
void ofproto_init_tables(struct ofproto *, int n_tables);
struct ofoperation *pending; /* Operation now in progress, if nonnull. */
- ovs_be64 flow_cookie; /* Controller-issued identifier. */
+ ovs_be64 flow_cookie; /* Controller-issued identifier. Guarded by
+ rwlock. */
struct hindex_node cookie_node; /* In owning ofproto's 'cookies' index. */
long long int created; /* Creation time. */
struct heap_node evg_node; /* In eviction_group's "rules" heap. */
struct eviction_group *eviction_group; /* NULL if not in any group. */
- /* The evict lock is used to prevent rules from being evicted while child
- * threads are using them to xlate flows. A read lock means the rule is
- * currently being used. A write lock means the rule is in the process of
- * being evicted and should be considered gone. A rule will not be evicted
- * unless both its own and its classifiers write locks are held.
- * Therefore, while holding a classifier readlock, one can be assured that
- * even write locked rules are safe. */
- struct ovs_rwlock evict;
+ /* The rwlock is used to protect those elements in struct rule which are
+ * accessed by multiple threads. While maintaining a pointer to struct
+ * rule, threads are required to hold a readlock. The main ofproto code is
+ * guaranteed not to evict the rule, or change any of the elements "Guarded
+ * by rwlock" without holding the writelock.
+ *
+ * A rule will not be evicted unless both its own and its classifier's
+ * write locks are held. Therefore, while holding a classifier readlock,
+ * one can be assured that write locked rules are safe to reference. */
+ struct ovs_rwlock rwlock;
+ /* Guarded by rwlock. */
struct ofpact *ofpacts; /* Sequence of "struct ofpacts". */
unsigned int ofpacts_len; /* Size of 'ofpacts', in bytes. */
return cls_rule ? CONTAINER_OF(cls_rule, struct rule, cr) : NULL;
}
-void ofproto_rule_update_used(struct rule *, long long int used);
void ofproto_rule_expire(struct rule *rule, uint8_t reason);
void ofproto_rule_delete(struct ofproto *, struct classifier *cls,
struct rule *) OVS_REQ_WRLOCK(cls->rwlock);
void ofoperation_complete(struct ofoperation *, enum ofperr);
bool ofoperation_has_out_port(const struct ofoperation *, ofp_port_t out_port);
+bool ofproto_rule_has_out_group(const struct rule *, uint32_t group_id);
bool ofproto_rule_is_hidden(const struct rule *);
+/* A group within a "struct ofproto".
+ *
+ * With few exceptions, ofproto implementations may look at these fields but
+ * should not modify them. */
+struct ofgroup {
+ /* The rwlock is used to prevent groups from being deleted while child
+ * threads are using them to xlate flows. A read lock means the
+ * group is currently being used. A write lock means the group is
+ * in the process of being deleted or updated. Note that since
+ * a read lock on the groups container is held while searching, and
+ * a group is ever write locked only while holding a write lock
+ * on the container, the user's of groups will never face a group
+ * in the write locked state. */
+ struct ovs_rwlock rwlock;
+ struct hmap_node hmap_node; /* In struct ofproto's "groups" hmap. */
+ struct ofproto *ofproto; /* The ofproto that contains this group. */
+ uint32_t group_id;
+ enum ofp11_group_type type; /* One of OFPGT_*. */
+
+ long long int created; /* Creation time. */
+ long long int modified; /* Time of last modification. */
+
+ struct list buckets; /* Contains "struct ofputil_bucket"s. */
+ uint32_t n_buckets;
+};
+
+bool ofproto_group_lookup(const struct ofproto *ofproto, uint32_t group_id,
+ struct ofgroup **group)
+ OVS_TRY_RDLOCK(true, (*group)->rwlock);
+
+void ofproto_group_release(struct ofgroup *group)
+ OVS_RELEASES(group->rwlock);
+
/* ofproto class structure, to be defined by each ofproto implementation.
*
*
* Data Structures
* ===============
*
- * These functions work primarily with three different kinds of data
+ * These functions work primarily with four different kinds of data
* structures:
*
* - "struct ofproto", which represents an OpenFlow switch.
*
* - "struct rule", which represents an OpenFlow flow within an ofproto.
*
+ * - "struct ofgroup", which represents an OpenFlow 1.1+ group within an
+ * ofproto.
+ *
* Each of these data structures contains all of the implementation-independent
* generic state for the respective concept, called the "base" state. None of
* them contains any extra space for ofproto implementations to use. Instead,
* ofproto ->alloc ->construct ->destruct ->dealloc
* ofport ->port_alloc ->port_construct ->port_destruct ->port_dealloc
* rule ->rule_alloc ->rule_construct ->rule_destruct ->rule_dealloc
+ * group ->group_alloc ->group_construct ->group_destruct ->group_dealloc
*
- * "ofproto" and "ofport" have this exact life cycle. The "rule" data
- * structure also follow this life cycle with some additional elaborations
+ * "ofproto", "ofport", and "group" have this exact life cycle. The "rule"
+ * data structure also follow this life cycle with some additional elaborations
* described under "Rule Life Cycle" below.
*
* Any instance of a given data structure goes through the following life
* flow->tunnel and flow->in_port, which are assigned the correct values
* for the incoming packet. The register values are zeroed. 'packet''s
* header pointers (e.g. packet->l3) are appropriately initialized.
+ * packet->l3 is aligned on a 32-bit boundary.
*
* The implementation should add the statistics for 'packet' into 'rule'.
*
/* Deletes a meter, making the 'ofproto_meter_id' invalid for any
* further calls. */
void (*meter_del)(struct ofproto *, ofproto_meter_id);
+
+
+/* ## -------------------- ## */
+/* ## OpenFlow 1.1+ groups ## */
+/* ## -------------------- ## */
+
+ struct ofgroup *(*group_alloc)(void);
+ enum ofperr (*group_construct)(struct ofgroup *);
+ void (*group_destruct)(struct ofgroup *);
+ void (*group_dealloc)(struct ofgroup *);
+
+ enum ofperr (*group_modify)(struct ofgroup *, struct ofgroup *victim);
+
+ enum ofperr (*group_get_stats)(const struct ofgroup *,
+ struct ofputil_group_stats *);
};
extern const struct ofproto_class ofproto_dpif_class;
git://git.onelab.eu / sliver-openvswitch.git / blobdiff