void udpif_revalidate(struct udpif *);
\f
-/* udpif can handle some upcalls on its own. Others need the main ofproto_dpif
- * code to handle them. This interface passes upcalls not handled by udpif up
- * to the ofproto_dpif main thread. */
-
-/* Type of an upcall. */
-enum upcall_type {
- /* Handled internally by udpif code. Not returned by upcall_next().*/
- BAD_UPCALL, /* Some kind of bug somewhere. */
- MISS_UPCALL, /* A flow miss. */
-
- /* Require main thread's involvement. May be returned by upcall_next(). */
- SFLOW_UPCALL, /* sFlow sample. */
- FLOW_SAMPLE_UPCALL, /* Per-flow sampling. */
- IPFIX_UPCALL /* Per-bridge sampling. */
-};
-
-/* An upcall. */
-struct upcall {
- struct list list_node; /* For queuing upcalls. */
-
- enum upcall_type type; /* Classification. */
-
- /* Raw upcall plus data for keeping track of the memory backing it. */
- struct dpif_upcall dpif_upcall; /* As returned by dpif_recv() */
- struct ofpbuf upcall_buf; /* Owns some data in 'dpif_upcall'. */
- uint64_t upcall_stub[512 / 8]; /* Buffer to reduce need for malloc(). */
-};
-
-struct upcall *upcall_next(struct udpif *);
-void upcall_destroy(struct upcall *);
-\f
/* udpif figures out how to forward packets, and does forward them, but it
* can't set up datapath flows on its own. This interface passes packet
* forwarding data from udpif to the higher level ofproto_dpif to allow the
enum odp_key_fitness key_fitness;
const struct nlattr *key;
size_t key_len;
- struct list packets;
enum dpif_upcall_type upcall_type;
struct dpif_flow_stats stats;
struct xlate_out xout;
-
- struct list upcalls;
};
struct flow_miss_batch {
struct hmap misses;
unsigned int reval_seq;
+
+ /* Flow misses refer to the memory held by "struct upcall"s,
+ * so we need to keep track of the upcalls to be able to
+ * free them when done. */
+ struct list upcalls; /* Contains "struct upcall"s. */
};
struct flow_miss_batch *flow_miss_batch_next(struct udpif *);