Implement new packet-in format NXT_PACKET_IN2.

[cascardo/ovs.git] / ofproto / bond.h

diff --git a/ofproto/bond.h b/ofproto/bond.h
index 5b3814e..9a5ea9e 100644 (file)
--- a/ofproto/bond.h
+++ b/ofproto/bond.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2008, 2009, 2010, 2011 Nicira, Inc.
+ * Copyright (c) 2008, 2009, 2010, 2011, 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.
@@ -19,12 +19,13 @@
 
 #include <stdbool.h>
 #include <stdint.h>
-
+#include "ofproto-provider.h"
 #include "packets.h"
 
 struct flow;
 struct netdev;
 struct ofpbuf;
+struct ofproto_dpif;
 enum lacp_status;
 
 /* How flows are balanced among bond slaves. */
@@ -51,21 +52,25 @@ struct bond_settings {
     int up_delay;               /* ms before enabling an up slave. */
     int down_delay;             /* ms before disabling a down slave. */
 
-    /* Legacy compatibility. */
-    bool fake_iface;            /* Update fake stats for netdev 'name'? */
     bool lacp_fallback_ab_cfg;  /* Fallback to active-backup on LACP failure. */
+
+    struct eth_addr active_slave_mac;
+                                /* The MAC address of the interface
+                                   that was active during the last
+                                   ovs run. */
 };
 
 /* Program startup. */
 void bond_init(void);
 
 /* Basics. */
-struct bond *bond_create(const struct bond_settings *);
+struct bond *bond_create(const struct bond_settings *,
+                         struct ofproto_dpif *ofproto);
 void bond_unref(struct bond *);
 struct bond *bond_ref(const struct bond *);
 
 bool bond_reconfigure(struct bond *, const struct bond_settings *);
-void bond_slave_register(struct bond *, void *slave_, struct netdev *);
+void bond_slave_register(struct bond *, void *slave_, ofp_port_t ofport, struct netdev *);
 void bond_slave_set_netdev(struct bond *, void *slave_, struct netdev *);
 void bond_slave_unregister(struct bond *, const void *slave);
 
@@ -76,9 +81,11 @@ void bond_slave_set_may_enable(struct bond *, void *slave_, bool may_enable);
 
 /* Special MAC learning support for SLB bonding. */
 bool bond_should_send_learning_packets(struct bond *);
-struct ofpbuf *bond_compose_learning_packet(struct bond *,
-                                            const uint8_t eth_src[ETH_ADDR_LEN],
-                                            uint16_t vlan, void **port_aux);
+struct dp_packet *bond_compose_learning_packet(struct bond *,
+                                               const struct eth_addr eth_src,
+                                               uint16_t vlan, void **port_aux);
+bool bond_get_changed_active_slave(const char *name, struct eth_addr *mac,
+                                   bool force);
 
 /* Packet processing. */
 enum bond_verdict {
@@ -87,7 +94,7 @@ enum bond_verdict {
     BV_DROP_IF_MOVED            /* Drop if we've learned a different port. */
 };
 enum bond_verdict bond_check_admissibility(struct bond *, const void *slave_,
-                                           const uint8_t dst[ETH_ADDR_LEN]);
+                                           const struct eth_addr dst);
 void *bond_choose_output_slave(struct bond *, const struct flow *,
                                struct flow_wildcards *, uint16_t vlan);
 
@@ -96,4 +103,24 @@ void bond_account(struct bond *, const struct flow *, uint16_t vlan,
                   uint64_t n_bytes);
 void bond_rebalance(struct bond *);
 
+/* Recirculation
+ *
+ * Only balance_tcp mode uses recirculation.
+ *
+ * When recirculation is used, each bond port is assigned with a unique
+ * recirc_id. The output action to the bond port will be replaced by
+ * a Hash action, followed by a RECIRC action.
+ *
+ *   ... actions= ... HASH(hash(L4)), RECIRC(recirc_id) ....
+ *
+ * On handling first output packet, 256 post recirculation flows are installed:
+ *
+ *  recirc_id=<bond_recirc_id>, dp_hash=<[0..255]>/0xff, actions: output<slave>
+ *
+ * Bond module pulls stats from those post recirculation rules. If rebalancing
+ * is needed, those rules are updated with new output actions.
+*/
+void bond_update_post_recirc_rules(struct bond *, const bool force);
+bool bond_may_recirc(const struct bond *, uint32_t *recirc_id,
+                     uint32_t *hash_bias);
 #endif /* bond.h */