-/* Copyright (c) 2013 Nicira, Inc.
+/* Copyright (c) 2013, 2014 Nicira, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
#ifndef OFPROTO_DPIF_UPCALL_H
#define OFPROTO_DPIF_UPCALL_H
-#define FLOW_MISS_MAX_BATCH 50
-
-#include "dpif.h"
-#include "flow.h"
-#include "hmap.h"
-#include "list.h"
-#include "odp-util.h"
-#include "ofpbuf.h"
-#include "ofproto-dpif-xlate.h"
+#include <stddef.h>
struct dpif;
struct dpif_backer;
+struct seq;
+struct simap;
-/* udif is responsible for retrieving upcalls from the kernel, processing miss
- * upcalls, and handing more complex ones up to the main ofproto-dpif
- * module. */
+/* Udif is responsible for retrieving upcalls from the kernel and processing
+ * them. Additionally, it's responsible for maintaining the datapath flow
+ * table. */
struct udpif *udpif_create(struct dpif_backer *, struct dpif *);
-void udpif_recv_set(struct udpif *, size_t n_workers, bool enable);
+void udpif_set_threads(struct udpif *, size_t n_handlers,
+ size_t n_revalidators);
+void udpif_synchronize(struct udpif *);
void udpif_destroy(struct udpif *);
-
-void udpif_run(struct udpif *);
-void udpif_wait(struct udpif *);
-
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
- * latter to set up datapath flows. */
-
-/* Flow miss batching.
- *
- * Some dpifs implement operations faster when you hand them off in a batch.
- * To allow batching, "struct flow_miss" queues the dpif-related work needed
- * for a given flow. Each "struct flow_miss" corresponds to sending one or
- * more packets, plus possibly installing the flow in the dpif. */
-struct flow_miss {
- struct hmap_node hmap_node;
- struct ofproto_dpif *ofproto;
-
- struct flow flow;
- 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 list list_node;
-
- struct flow_miss miss_buf[FLOW_MISS_MAX_BATCH];
- struct hmap misses;
-};
-
-struct flow_miss_batch *flow_miss_batch_next(struct udpif *);
-void flow_miss_batch_destroy(struct flow_miss_batch *);
-
-void flow_miss_batch_ofproto_destroyed(struct udpif *,
- const struct ofproto_dpif *);
-\f
-/* Drop keys are odp flow keys which have drop flows installed in the kernel.
- * These are datapath flows which have no associated ofproto, if they did we
- * would use facets.
- *
- * udpif can't install drop flows by itself. This interfaces allows udpif to
- * pass the drop flows up to ofproto_dpif to get it to install them. */
-struct drop_key {
- struct hmap_node hmap_node;
- struct list list_node;
- struct nlattr *key;
- size_t key_len;
-};
-
-struct drop_key *drop_key_next(struct udpif *);
-void drop_key_destroy(struct drop_key *);
-void udpif_drop_key_clear(struct udpif *);
+void udpif_get_memory_usage(struct udpif *, struct simap *usage);
+struct seq *udpif_dump_seq(struct udpif *);
+void udpif_flush(struct udpif *);
#endif /* ofproto-dpif-upcall.h */
git://git.onelab.eu / sliver-openvswitch.git / blobdiff