-/* Copyright (c) 2009, 2010, 2011, 2012, 2013, 2014, 2015 Nicira, Inc.
+/* Copyright (c) 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 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 "dp-packet.h"
#include "flow.h"
-#include "meta-flow.h"
+#include "openvswitch/meta-flow.h"
#include "odp-util.h"
-#include "ofpbuf.h"
+#include "openvswitch/ofpbuf.h"
#include "ofproto-dpif-mirror.h"
#include "ofproto-dpif-rid.h"
#include "ofproto-dpif.h"
#include "ofproto.h"
#include "stp.h"
#include "ovs-lldp.h"
+#include "uuid.h"
struct bfd;
struct bond;
struct xlate_cache;
struct xlate_out {
- enum slow_path_reason slow; /* 0 if fast path may be used. */
- bool fail_open; /* Initial rule is fail open? */
+ /* Caching exceptions:
+ *
+ * - If 'slow' is nonzero, the translation needs to be slow-pathed for
+ * one reason or another. (The particular value is only important for
+ * explaining to an administrator why the flow is slow-pathed.) This
+ * makes OVS install a datapath flow with a send-to-userspace action.
+ * Only on revalidation will the flow be replaced, if appropriate, by
+ * one that does something else with the traffic.
+ *
+ * - If 'avoid_caching' is true, then OVS won't install a datapath flow
+ * at all. If the reason to avoid caching goes away, the next upcall
+ * will immediately install a correct datapath flow.
+ *
+ * - Otherwise a datapath flow can be installed in the usual way.
+ *
+ * If 'avoid_caching' is true then 'slow' doesn't matter.
+ */
+ enum slow_path_reason slow;
+ bool avoid_caching;
- struct recirc_refs recircs; /* Recirc action IDs on which references are
- * held. */
+ /* Recirc action IDs on which references are held. */
+ struct recirc_refs recircs;
};
struct xlate_in {
struct ofproto_dpif *ofproto;
+ ovs_version_t tables_version; /* Lookup in this version. */
/* Flow to which the OpenFlow actions apply. xlate_actions() will modify
* this flow when actions change header fields. */
struct flow flow;
+ /* Pointer to the original flow received during the upcall. xlate_actions()
+ * will never modify this flow. */
+ const struct flow *upcall_flow;
+
/* The packet corresponding to 'flow', or a null pointer if we are
* revalidating without a packet to refer to. */
const struct dp_packet *packet;
/* Should OFPP_NORMAL update the MAC learning table? Should "learn"
- * actions update the flow table?
+ * actions update the flow table? Should FIN_TIMEOUT change the
+ * timeouts? Or should controller action send packet to the controller?
*
* We want to update these tables if we are actually processing a packet,
* or if we are accounting for packets that the datapath has processed, but
- * not if we are just revalidating. */
- bool may_learn;
+ * not if we are just revalidating, or if we want to execute the
+ * side-effects later via the xlate cache. */
+ bool allow_side_effects;
/* The rule initiating translation or NULL. If both 'rule' and 'ofpacts'
* are NULL, xlate_actions() will do the initial rule lookup itself. */
* timeouts.) */
uint16_t tcp_flags;
- /* If nonnull, flow translation calls this function just before executing a
- * resubmit or OFPP_TABLE action. In addition, disables logging of traces
- * when the recursion depth is exceeded.
- *
- * 'rule' is the rule being submitted into. It will be null if the
- * resubmit or OFPP_TABLE action didn't find a matching rule.
- *
- * 'recurse' is the resubmit recursion depth at time of invocation.
- *
- * This is normally null so the client has to set it manually after
- * calling xlate_in_init(). */
- void (*resubmit_hook)(struct xlate_in *, struct rule_dpif *rule,
- int recurse);
-
- /* If nonnull, flow translation calls this function to report some
- * significant decision, e.g. to explain why OFPP_NORMAL translation
- * dropped a packet. 'recurse' is the resubmit recursion depth at time of
- * invocation. */
- void (*report_hook)(struct xlate_in *, int recurse,
- const char *format, va_list args);
+ /* Set to nonnull to trace the translation. See ofproto-dpif-trace.h for
+ * more information. This points to the list of oftrace nodes to which the
+ * translation should add tracing information (with oftrace_report()). */
+ struct ovs_list *trace;
/* If nonnull, flow translation credits the specified statistics to each
* rule reached through a resubmit or OFPP_TABLE action.
* calling xlate_in_init(). */
const struct dpif_flow_stats *resubmit_stats;
- /* Recursion and resubmission levels carried over from a pre-existing
- * translation of a related flow. An example of when this can occur is
- * the translation of an ARP packet that was generated as the result of
- * outputting to a tunnel port. In this case, the original flow going to
- * the tunnel is the related flow. Since the two flows are different, they
- * should not use the same xlate_ctx structure. However, we still need
- * limit the maximum recursion across the entire translation.
+ /* Counters carried over from a pre-existing translation of a related flow.
+ * This can occur due to, e.g., the translation of an ARP packet that was
+ * generated as the result of outputting to a tunnel port. In that case,
+ * the original flow going to the tunnel is the related flow. Since the
+ * two flows are different, they should not use the same xlate_ctx
+ * structure. However, we still need limit the maximum recursion across
+ * the entire translation.
*
* These fields are normally set to zero, so the client has to set them
- * manually after calling xlate_in_init(). In that case, they should be
- * copied from the same-named fields in the related flow's xlate_ctx. */
- int recurse;
+ * manually after calling xlate_in_init(). In that case, they should be
+ * copied from the same-named fields in the related flow's xlate_ctx.
+ *
+ * These fields are really implementation details; the client doesn't care
+ * about what they mean. See the corresponding fields in xlate_ctx for
+ * real documentation. */
+ int depth;
int resubmits;
/* If nonnull, flow translation populates this cache with references to all
* set. */
struct flow_wildcards *wc;
- /* The recirculation context related to this translation, as returned by
- * xlate_lookup. */
- const struct recirc_id_node *recirc;
+ /* The frozen state to be resumed, as returned by xlate_lookup(). */
+ const struct frozen_state *frozen_state;
+
+ /* If true, the packet to be translated is from a packet_out msg. */
+ bool in_packet_out;
+
+ /* ofproto/trace maintains this queue to trace flows that require
+ * recirculation. */
+ struct ovs_list *recirc_queue;
+
+ /* UUID of first non-patch port packet was received on.*/
+ struct uuid xport_uuid;
};
void xlate_ofproto_set(struct ofproto_dpif *, const char *name, struct dpif *,
void xlate_remove_ofproto(struct ofproto_dpif *);
void xlate_bundle_set(struct ofproto_dpif *, struct ofbundle *,
- const char *name, enum port_vlan_mode, int vlan,
- unsigned long *trunks, bool use_priority_tags,
+ const char *name, enum port_vlan_mode,
+ uint16_t qinq_ethtype, int vlan,
+ unsigned long *trunks, unsigned long *cvlans,
+ bool use_priority_tags,
const struct bond *, const struct lacp *,
- bool floodable);
+ bool floodable, bool protected);
void xlate_bundle_remove(struct ofbundle *);
void xlate_ofport_set(struct ofproto_dpif *, struct ofbundle *,
XLATE_NO_RECIRCULATION_CONTEXT,
XLATE_RECIRCULATION_CONFLICT,
XLATE_TOO_MANY_MPLS_LABELS,
+ XLATE_INVALID_TUNNEL_METADATA,
+ XLATE_UNSUPPORTED_PACKET_TYPE,
};
const char *xlate_strerror(enum xlate_error error);
enum xlate_error xlate_actions(struct xlate_in *, struct xlate_out *);
-void xlate_in_init(struct xlate_in *, struct ofproto_dpif *,
+void xlate_in_init(struct xlate_in *, struct ofproto_dpif *, ovs_version_t,
const struct flow *, ofp_port_t in_port, struct rule_dpif *,
uint16_t tcp_flags, const struct dp_packet *packet,
struct flow_wildcards *, struct ofpbuf *odp_actions);
void xlate_out_uninit(struct xlate_out *);
-void xlate_actions_for_side_effects(struct xlate_in *);
-int xlate_send_packet(const struct ofport_dpif *, struct dp_packet *);
+enum ofperr xlate_resume(struct ofproto_dpif *,
+ const struct ofputil_packet_in_private *,
+ struct ofpbuf *odp_actions, enum slow_path_reason *,
+ struct flow *, struct xlate_cache *);
+int xlate_send_packet(const struct ofport_dpif *, bool oam, struct dp_packet *);
+
+void xlate_mac_learning_update(const struct ofproto_dpif *ofproto,
+ ofp_port_t in_port, struct eth_addr dl_src,
+ int vlan, bool is_grat_arp);
-struct xlate_cache *xlate_cache_new(void);
-void xlate_push_stats(struct xlate_cache *, const struct dpif_flow_stats *);
-void xlate_cache_clear(struct xlate_cache *);
-void xlate_cache_delete(struct xlate_cache *);
+void xlate_set_support(const struct ofproto_dpif *,
+ const struct dpif_backer_support *);
void xlate_txn_start(void);
void xlate_txn_commit(void);
projects / mirror_ovs.git / blobdiff