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ovsdb_client_idl.h
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ovsdb_client_idl.h
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/*
* Copyright (c) 2014 Juniper Networks, Inc. All rights reserved.
*/
#ifndef SRC_VNSW_AGENT_OVS_TOR_AGENT_OVSDB_CLIENT_OVSDB_CLIENT_IDL_H_
#define SRC_VNSW_AGENT_OVS_TOR_AGENT_OVSDB_CLIENT_OVSDB_CLIENT_IDL_H_
#include <assert.h>
#include <queue>
#include <boost/intrusive_ptr.hpp>
#include <tbb/atomic.h>
#include <cmn/agent_cmn.h>
#include <cmn/agent.h>
#include <agent_types.h>
#include <ksync/ksync_entry.h>
extern SandeshTraceBufferPtr OvsdbTraceBuf;
extern SandeshTraceBufferPtr OvsdbSMTraceBuf;
extern SandeshTraceBufferPtr OvsdbPktTraceBuf;
#define OVSDB_TRACE(obj, ...)\
do {\
Ovsdb##obj::TraceMsg(OvsdbTraceBuf, __FILE__, __LINE__, __VA_ARGS__);\
} while(false);
#define OVSDB_PKT_TRACE(obj, ...)\
do {\
Ovsdb##obj::TraceMsg(OvsdbPktTraceBuf, __FILE__, __LINE__, __VA_ARGS__);\
} while(false);
class OvsPeer;
class OvsPeerManager;
class KSyncObjectManager;
namespace OVSDB {
class OvsdbClientSession;
class VMInterfaceKSyncObject;
class PhysicalSwitchTable;
class LogicalSwitchTable;
class PhysicalPortTable;
class PhysicalLocatorTable;
class VlanPortBindingTable;
class PhysicalLocatorTable;
class UnicastMacLocalOvsdb;
class MulticastMacLocalOvsdb;
class VrfOvsdbObject;
class VnOvsdbObject;
class OvsdbEntryBase;
class ConnectionStateTable;
class OvsdbResourceVxLanIdTable;
class OvsdbClientIdl;
typedef boost::intrusive_ptr<OvsdbClientIdl> OvsdbClientIdlPtr;
typedef std::set<OvsdbEntryBase *> OvsdbEntryList;
class OvsdbClientIdl {
public:
// OvsdbSessionState represent state of the session.
// it starts with OvsdbSessionRcvWait representing that idl is waiting
// for a message to come from ovsdb-server on message receive on session
// it moves to OvsdbSessionActive state, if keepalive timer fires with
// idl being in OvsdbSessionRcvWait state, it triggers an echo req (keep
// alive message) and moves to OvsdbSessionEchoWait state waiting for
// echo response, if there is no response till the next time timer fires
// it triggers the close of session.
enum OvsdbSessionState {
OvsdbSessionActive = 0, // Actively receiving messages
OvsdbSessionRcvWait, // Waiting to receive next message
OvsdbSessionEchoWait // Echo Req sent waiting for reply
};
static const std::size_t OVSDBMaxInFlightPendingTxn = 25;
static const std::size_t OVSDBEntriesInBulkTxn = 4;
enum Op {
OVSDB_DEL = 0,
OVSDB_ADD,
OVSDB_INVALID_OP
};
enum EntryType {
OVSDB_PHYSICAL_SWITCH = 0,
OVSDB_LOGICAL_SWITCH,
OVSDB_PHYSICAL_PORT,
OVSDB_PHYSICAL_LOCATOR,
OVSDB_UCAST_MAC_LOCAL,
OVSDB_UCAST_MAC_REMOTE,
OVSDB_PHYSICAL_LOCATOR_SET,
OVSDB_MCAST_MAC_LOCAL,
OVSDB_MCAST_MAC_REMOTE,
OVSDB_TYPE_COUNT
};
struct OvsdbMsg {
OvsdbMsg(struct jsonrpc_msg *m);
~OvsdbMsg();
struct jsonrpc_msg *msg;
};
struct TxnStats {
TxnStats();
uint64_t txn_initiated;
uint64_t txn_succeeded;
uint64_t txn_failed;
};
typedef boost::function<void(OvsdbClientIdl::Op, struct ovsdb_idl_row *)> NotifyCB;
typedef std::map<struct ovsdb_idl_txn *, OvsdbEntryList> PendingTxnMap;
typedef std::queue<struct jsonrpc_msg *> ThrottledTxnMsgs;
OvsdbClientIdl(OvsdbClientSession *session, Agent *agent, OvsPeerManager *manager);
virtual ~OvsdbClientIdl();
// Callback from receive_queue to process the OVSDB Messages
bool ProcessMessage(OvsdbMsg *msg);
// Send request to start monitoring OVSDB server
void OnEstablish();
// Encode and send json rpc message to OVSDB server
// takes ownership of jsonrpc message, and free memory
void TxnScheduleJsonRpc(struct jsonrpc_msg *msg);
// Process the recevied message and trigger update to ovsdb client
void MessageProcess(const u_int8_t *buf, std::size_t len);
// Create a OVSDB transaction to start encoding an update
struct ovsdb_idl_txn *CreateTxn(OvsdbEntryBase *entry,
KSyncEntry::KSyncEvent ack_event = KSyncEntry::ADD_ACK);
// Create a Bulk OVSDB transaction to start encoding a bulk update
struct ovsdb_idl_txn *CreateBulkTxn(OvsdbEntryBase *entry,
KSyncEntry::KSyncEvent ack_event = KSyncEntry::ADD_ACK);
// encode and send a transaction
bool EncodeSendTxn(struct ovsdb_idl_txn *txn, OvsdbEntryBase *skip_entry);
// Delete the OVSDB transaction
void DeleteTxn(struct ovsdb_idl_txn *txn);
void Register(EntryType type, NotifyCB cb) {callback_[type] = cb;}
void UnRegister(EntryType type) {callback_[type] = NULL;}
// Notify Delete followed by add for a given ovsdb_idl_row
void NotifyDelAdd(struct ovsdb_idl_row *row);
// Get TOR Service Node IP
Ip4Address tsn_ip();
// Process jsonrpc_msg for IDL, takes ownership of jsonrpc_msg
void MessageProcess(struct jsonrpc_msg *msg);
Ip4Address remote_ip() const;
uint16_t remote_port() const;
ConnectionStateTable *connection_table();
KSyncObjectManager *ksync_obj_manager();
OvsPeer *route_peer();
bool deleted() { return deleted_; }
Agent *agent() const {return agent_;}
VMInterfaceKSyncObject *vm_interface_table();
PhysicalSwitchTable *physical_switch_table();
LogicalSwitchTable *logical_switch_table();
PhysicalPortTable *physical_port_table();
PhysicalLocatorTable *physical_locator_table();
VlanPortBindingTable *vlan_port_table();
UnicastMacLocalOvsdb *unicast_mac_local_ovsdb();
MulticastMacLocalOvsdb *multicast_mac_local_ovsdb();
VrfOvsdbObject *vrf_ovsdb();
VnOvsdbObject *vn_ovsdb();
OvsdbResourceVxLanIdTable *vxlan_table();
// Used by Test case
bool IsKeepAliveTimerActive();
bool IsMonitorInProcess();
bool KeepAliveTimerCb();
void TriggerDeletion();
bool IsDeleted() const { return deleted_; }
int refcount() const { return refcount_; }
const TxnStats &stats() const;
uint64_t pending_txn_count() const;
uint64_t pending_send_msg_count() const;
// Concurrency Check to validate all idl transactions happen only in
// db::DBTable or Agent::KSync task context
bool ConcurrencyCheck() const;
private:
friend void ovsdb_wrapper_idl_callback(void *, int, struct ovsdb_idl_row *);
friend void ovsdb_wrapper_idl_txn_ack(void *, struct ovsdb_idl_txn *);
friend void intrusive_ptr_add_ref(OvsdbClientIdl *p);
friend void intrusive_ptr_release(OvsdbClientIdl *p);
void ConnectOperDB();
struct ovsdb_idl *idl_;
const struct vteprec_global *vtep_global_;
OvsdbClientSession *session_;
Agent *agent_;
NotifyCB callback_[OVSDB_TYPE_COUNT];
PendingTxnMap pending_txn_;
ThrottledTxnMsgs pending_send_msgs_;
bool deleted_;
// Queue for handling OVS messages. Message processing accesses many of the
// OPER-DB and KSync structures. So, this queue will run in context KSync
// task
WorkQueue<OvsdbMsg *> *receive_queue_;
OvsPeerManager *manager_;
OvsdbSessionState connection_state_;
Timer *keepalive_timer_;
// json for the sent monitor request, used to identify response to the
// request, reset to NULL once response if feed to idl for processing
// as it free the json for monitor request id
struct json *monitor_request_id_;
// pointer to current buildup of bulk transaction
struct ovsdb_idl_txn *bulk_txn_;
// list of entries added to bulk txn
OvsdbEntryList bulk_entries_;
// transaction stats per IDL
TxnStats stats_;
tbb::atomic<int> refcount_;
std::auto_ptr<OvsPeer> route_peer_;
std::auto_ptr<VMInterfaceKSyncObject> vm_interface_table_;
std::auto_ptr<PhysicalSwitchTable> physical_switch_table_;
std::auto_ptr<LogicalSwitchTable> logical_switch_table_;
std::auto_ptr<PhysicalPortTable> physical_port_table_;
std::auto_ptr<PhysicalLocatorTable> physical_locator_table_;
std::auto_ptr<VlanPortBindingTable> vlan_port_table_;
std::auto_ptr<UnicastMacLocalOvsdb> unicast_mac_local_ovsdb_;
std::auto_ptr<MulticastMacLocalOvsdb> multicast_mac_local_ovsdb_;
std::auto_ptr<VrfOvsdbObject> vrf_ovsdb_;
std::auto_ptr<VnOvsdbObject> vn_ovsdb_;
std::auto_ptr<OvsdbResourceVxLanIdTable> vxlan_table_;
DISALLOW_COPY_AND_ASSIGN(OvsdbClientIdl);
};
}; // namespace OVSDB
#endif // SRC_VNSW_AGENT_OVS_TOR_AGENT_OVSDB_CLIENT_OVSDB_CLIENT_IDL_H_