ksync_init.cc

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/*
 * Copyright (c) 2013 Juniper Networks, Inc. All rights reserved.
 */
 
#include <boost/asio.hpp>
#include <boost/bind/bind.hpp>
 
#if defined(__linux__)
#include <linux/netlink.h>
#include <linux/rtnetlink.h>
#include <linux/genetlink.h>
#include <linux/if_ether.h>
#include <netinet/ether.h>
#endif
 
#include "ksync_init.h"
 
#include <sys/mman.h>
#include <net/if.h>
 
#include <io/event_manager.h>
#include <db/db_entry.h>
#include <db/db_table.h>
#include <db/db_table_partition.h>
#include <cmn/agent_cmn.h>
#include <pkt/flow_proto.h>
#include <ksync/ksync_index.h>
#include <ksync/ksync_entry.h>
#include <ksync/ksync_object.h>
#include <ksync/ksync_netlink.h>
#include <ksync/ksync_sock.h>
#include <init/agent_param.h>
 
#include <nl_util.h>
#include <vhost.h>
#include <vr_message.h>
#include <vr_mem.h>
 
#include "bridge_route_audit_ksync.h"
#include "interface_ksync.h"
#include "route_ksync.h"
#include "mirror_ksync.h"
#include "vrf_assign_ksync.h"
#include "vxlan_ksync.h"
#include "sandesh_ksync.h"
#include "qos_queue_ksync.h"
#include "forwarding_class_ksync.h"
#include "qos_config_ksync.h"
 
using namespace boost::placeholders;
 
#define    VNSW_GENETLINK_FAMILY_NAME  "vnsw"
 
void LogSockInitErrors(bool success_cond, bool use_errno, string err_str) {
    if(success_cond == false) {
        if (use_errno) {
            LOG(ERROR,
                err_str << " Failed with " << errno << "syscall: " 
                << strerror(errno) << ". BackTrace: " << AgentBackTrace(1));
        } else {
            LOG(ERROR,
               "Failed with " << err_str << ". BackTrace: " << AgentBackTrace(1));
        }
        _Exit(0);
    }
    return;
}
 
KSync::KSync(Agent *agent)
    : agent_(agent), interface_ksync_obj_(new InterfaceKSyncObject(this)),
      flow_table_ksync_obj_list_(),
      mpls_ksync_obj_(new MplsKSyncObject(this)),
      nh_ksync_obj_(new NHKSyncObject(this)),
      mirror_ksync_obj_(new MirrorKSyncObject(this)),
      vrf_ksync_obj_(new VrfKSyncObject(this)),
      vxlan_ksync_obj_(new VxLanKSyncObject(this)),
      vrf_assign_ksync_obj_(new VrfAssignKSyncObject(this)),
      vnsw_interface_listner_(new VnswInterfaceListener(agent)),
      ksync_flow_memory_(new KSyncFlowMemory(this, VR_MEM_FLOW_TABLE_OBJECT)),
      ksync_flow_index_manager_(new KSyncFlowIndexManager(this)),
      qos_queue_ksync_obj_(new QosQueueKSyncObject(this)),
      forwarding_class_ksync_obj_(new ForwardingClassKSyncObject(this)),
      qos_config_ksync_obj_(new QosConfigKSyncObject(this)),
      bridge_route_audit_ksync_obj_(new BridgeRouteAuditKSyncObject(this)),
      ksync_bridge_memory_(new KSyncBridgeMemory(this, VR_MEM_BRIDGE_TABLE_OBJECT)) {
      for (uint16_t i = 0; i < kHugePageFiles; i++) {
          huge_fd_[i] = -1;
          huge_pages_[i] = NULL;
      }
      btable_huge_pages_index_ = 0;
      ftable_huge_pages_index_ = 0;
      for (uint16_t i = 0; i < agent->flow_thread_count(); i++) {
          FlowTableKSyncObject *obj = new FlowTableKSyncObject(this);
          flow_table_ksync_obj_list_.push_back(obj);
      }
}
 
KSync::~KSync() {
      for (uint16_t i = 0; i < kHugePageFiles; i++) {
          if (huge_fd_[i] != -1)
              close (huge_fd_[i]);
      }
    STLDeleteValues(&flow_table_ksync_obj_list_);
}
 
void KSync::RegisterDBClients(DB *db) {
    KSyncObjectManager::Init();
    interface_ksync_obj_.get()->RegisterDBClients();
    vrf_ksync_obj_.get()->RegisterDBClients();
    nh_ksync_obj_.get()->RegisterDBClients();
    mpls_ksync_obj_.get()->RegisterDBClients();
    mirror_ksync_obj_.get()->RegisterDBClients();
    vrf_assign_ksync_obj_.get()->RegisterDBClients();
    vxlan_ksync_obj_.get()->RegisterDBClients();
    qos_queue_ksync_obj_.get()->RegisterDBClients();
    forwarding_class_ksync_obj_.get()->RegisterDBClients();
    qos_config_ksync_obj_.get()->RegisterDBClients();
    agent_->set_router_id_configured(false);
}
 
void KSync::Init(bool create_vhost) {
    NetlinkInit();
    SetHugePages();
    InitFlowMem();
    ResetVRouter(true);
    if (create_vhost) {
        CreateVhostIntf();
    }
    interface_ksync_obj_.get()->Init();
    for (uint16_t i = 0; i < flow_table_ksync_obj_list_.size(); i++) {
        FlowTable *flow_table = agent_->pkt()->get_flow_proto()->GetTable(i);
        flow_table->set_ksync_object(flow_table_ksync_obj_list_[i]);
        flow_table_ksync_obj_list_[i]->Init();
    }
    ksync_flow_memory_.get()->Init();
    ksync_bridge_memory_.get()->Init();
}
 
void KSync::InitDone() {
    for (uint16_t i = 0; i < flow_table_ksync_obj_list_.size(); i++) {
        FlowTable *flow_table = agent_->pkt()->get_flow_proto()->GetTable(i);
        flow_table_ksync_obj_list_[i]->set_flow_table(flow_table);
        flow_table->set_ksync_object(flow_table_ksync_obj_list_[i]);
    }
    uint32_t count = ksync_flow_memory_->table_entries_count();
    ksync_flow_index_manager_->InitDone(count);
    AgentProfile *profile = agent_->oper_db()->agent_profile();
    profile->RegisterKSyncStatsCb(boost::bind(&KSync::SetProfileData,
                                              this, _1));
    KSyncSock::Get(0)->SetMeasureQueueDelay(agent_->MeasureQueueDelay());
}
 
void KSync::InitFlowMem() {
    ksync_flow_memory_.get()->InitMem(ftable_huge_page_mem_get());
    ksync_bridge_memory_.get()->InitMem(btable_huge_page_mem_get());
}
 
void KSync::NetlinkInit() {
    EventManager *event_mgr;
    bool use_work_queue = false;
 
    event_mgr = agent_->event_manager();
    boost::asio::io_context &io = *event_mgr->io_service();
 
    KSyncSockNetlink::Init(io, NETLINK_GENERIC, use_work_queue,
                           agent_->params()->ksync_thread_cpu_pin_policy());
    for (int i = 0; i < KSyncSock::kRxWorkQueueCount; i++) {
        KSyncSock::SetAgentSandeshContext
            (new KSyncSandeshContext(this), i);
    }
    GenericNetlinkInit();
}
 
int KSync::Encode(Sandesh &encoder, uint8_t *buf, int buf_len) {
    int len, error;
    len = encoder.WriteBinary(buf, buf_len, &error);
    return len;
}
 
void KSync::SetProfileData(ProfileData *data) {
    KSyncSock *sock = KSyncSock::Get(0);
    const KSyncTxQueue *tx_queue = sock->send_queue();
 
    ProfileData::WorkQueueStats *stats = &data->ksync_tx_queue_count_;
    stats->name_ = "KSync Send Queue";
    stats->queue_count_ = tx_queue->queue_len();
    stats->enqueue_count_ = tx_queue->enqueues();
    stats->dequeue_count_ = tx_queue->dequeues();
    stats->max_queue_count_ = tx_queue->max_queue_len();
    stats->start_count_ = tx_queue->read_events();
    stats->busy_time_ = tx_queue->busy_time();
    tx_queue->set_measure_busy_time(agent()->MeasureQueueDelay());
    if (agent()->MeasureQueueDelay()) {
        tx_queue->ClearStats();
    }
 
    stats = &data->ksync_rx_queue_count_;
    stats->queue_count_ = 0;
    stats->enqueue_count_ = 0;
    stats->dequeue_count_ = 0;
    stats->max_queue_count_ = 0;
    stats->start_count_ = 0;
    stats->busy_time_ = 0;
 
    for (int i = 0; i < IoContext::MAX_WORK_QUEUES; i++) {
        const KSyncSock::KSyncReceiveQueue *rx_queue =
            sock->get_receive_work_queue(i);
        if (i == 0)
            stats->name_ = rx_queue->Description();
        stats->queue_count_ += rx_queue->Length();
        stats->enqueue_count_ += rx_queue->NumEnqueues();
        stats->dequeue_count_ += rx_queue->NumDequeues();
        if (stats->max_queue_count_ < rx_queue->max_queue_len()) {
            stats->max_queue_count_ = rx_queue->max_queue_len();
        }
        stats->start_count_ += rx_queue->task_starts();
        stats->busy_time_ += rx_queue->busy_time();
        rx_queue->set_measure_busy_time(agent()->MeasureQueueDelay());
        if (agent()->MeasureQueueDelay()) {
            rx_queue->ClearStats();
        }
    }
}
 
void KSync::InitVrouterOps(vrouter_ops *v) {
    v->set_vo_rid(0);
    v->set_vo_mpls_labels(-1);
    v->set_vo_mpls_labels(-1);
    v->set_vo_nexthops(-1);
    v->set_vo_bridge_entries(-1);
    v->set_vo_oflow_bridge_entries(-1);
    v->set_vo_flow_entries(-1);
    v->set_vo_oflow_entries(-1);
    v->set_vo_interfaces(-1);
    v->set_vo_mirror_entries(-1);
    v->set_vo_vrfs(-1);
    v->set_vo_log_level(0);
    v->set_vo_perfr(-1);
    v->set_vo_perfs(-1);
    v->set_vo_from_vm_mss_adj(-1);
    v->set_vo_to_vm_mss_adj(-1);
    v->set_vo_perfr1(-1);
    v->set_vo_perfr2(-1);
    v->set_vo_perfr3(-1);
    v->set_vo_perfp(-1);
    v->set_vo_perfq1(-1);
    v->set_vo_perfq2(-1);
    v->set_vo_perfq3(-1);
    v->set_vo_udp_coff(-1);
    v->set_vo_flow_hold_limit(-1);
    v->set_vo_mudp(-1);
    v->set_vo_burst_tokens(-1);
    v->set_vo_burst_interval(-1);
    v->set_vo_burst_step(-1);
    v->set_vo_memory_alloc_checks(-1);
}
 
void KSync::SetHugePages() {
    vr_hugepage_config encoder;
    bool fail[kHugePageFiles];
    std::string filename[kHugePageFiles];
    uint32_t filesize[kHugePageFiles];
    uint32_t flags[kHugePageFiles];
    uint32_t pagesize[kHugePageFiles];
    uint16_t i, j;
    uint32_t bridge_table_size, flow_table_size;
 
    // get the table size for bridge and flow
    bridge_table_size = ksync_bridge_memory_.get()->GetKernelTableSize();
    flow_table_size = ksync_flow_memory_.get()->GetKernelTableSize();
 
    LOG(INFO, __FUNCTION__ << ": " << "Bridge table size:" << bridge_table_size
                     << " Flow table size:" << flow_table_size << "\n");
 
    for (i = 0; i < kHugePageFiles / 2; ++i) {
        filename[i] = agent_->params()->huge_page_file_1G(i);
        if ((i % 2) == 0) {
            filesize[i] = bridge_table_size;
        } else {
            filesize[i] = flow_table_size;
        }
        // set pagesize array
        pagesize[i] = 1024 * 1024 * 1024;
        flags[i] = O_CREAT | O_RDWR;
        fail[i] = false;
    }
    for (j = i; j < kHugePageFiles; ++j) {
        filename[j] = agent_->params()->huge_page_file_2M(j - i);
        if ((j % 2) == 0) {
            filesize[j] = bridge_table_size;
        } else {
            filesize[j] = flow_table_size;
        }
        // set pagesize array
        pagesize[j] = 2 * 1024 * 1024;
        flags[j] = O_CREAT | O_RDWR;
        fail[j] = false;
    }
 
    for (i = 0; i < kHugePageFiles; ++i) {
        if (filename[i].empty()) {
            fail[i] = true;
            continue;
        }
 
        huge_fd_[i] = open(filename[i].c_str(), flags[i], 0755);
        if (huge_fd_[i] < 0) {
            fail[i] = true;
            continue;
        }
 
        LOG(INFO, "Mem mapping hugepage file:" << filename[i].c_str()
                  << " size:" << filesize[i] << "\n");
        huge_pages_[i] = (void *) mmap(NULL, filesize[i],
                                       PROT_READ | PROT_WRITE, MAP_SHARED,
                                       huge_fd_[i], 0);
        if (huge_pages_[i] == MAP_FAILED) {
            LOG(ERROR, "Failed to Mmap hugepage file:" << filename[i].c_str() << "\n");
            huge_pages_[i] = NULL;
            fail[i] = true;
        } else {
            LOG(INFO, "Mem mapped hugepage file:" << filename[i].c_str()
                      << " to addr:" << huge_pages_[i] << "\n");
            if ((i % 2) == 0) {
                btable_huge_pages_index_ = i;
            } else {
                ftable_huge_pages_index_ = i;
            }
        }
    }
 
    encoder.set_vhp_op(sandesh_op::ADD);
 
    std::vector<uint64_t> huge_mem;
    std::vector<uint32_t> huge_mem_size;
    std::vector<uint32_t> huge_page_size;
    std::vector<int8_t>   huge_page_paths;
    std::vector<uint32_t> huge_page_paths_sz;
 
    for (uint16_t i = 0; i < kHugePageFiles; ++i) {
        if (fail[i] == false) {
            huge_mem.push_back((uint64_t) huge_pages_[i]);
            huge_page_size.push_back(pagesize[i]);
            huge_mem_size.push_back(filesize[i]);
            const char *path = filename[i].c_str();
            uint32_t len = strlen(path) + 1;
            for (uint32_t c = 0; c < len; c++) {
                huge_page_paths.push_back(path[c]);
            }
            huge_page_paths_sz.push_back(len);
        }
    }
    encoder.set_vhp_mem(huge_mem);
    encoder.set_vhp_psize(huge_page_size);
    // set huge_mem_size
    encoder.set_vhp_mem_sz(huge_mem_size);
    encoder.set_vhp_file_paths(huge_page_paths);
    encoder.set_vhp_file_path_sz(huge_page_paths_sz);
    encoder.set_vhp_resp(VR_HPAGE_CFG_RESP_HPAGE_SUCCESS);
 
    uint8_t msg[KSYNC_DEFAULT_MSG_SIZE];
    int len = Encode(encoder, msg, KSYNC_DEFAULT_MSG_SIZE);
 
    LOG(INFO, "Sending Huge Page configuration to VROUTER\n");
    KSyncSock *sock = KSyncSock::Get(0);
    sock->BlockingSend((char *)msg, len);
    if (sock->BlockingRecv()) {
        LOG(ERROR, "Error sending Huge Page configuration to VROUTER. Skipping KSync Start");
    }
}
 
void KSync::ResetVRouter(bool run_sync_mode) {
    int len = 0;
    vrouter_ops encoder;
    encoder.set_h_op(sandesh_op::RESET);
    uint8_t msg[KSYNC_DEFAULT_MSG_SIZE];
    len = Encode(encoder, msg, KSYNC_DEFAULT_MSG_SIZE);
 
    KSyncSock *sock = KSyncSock::Get(0);
    sock->BlockingSend((char *)msg, len);
    if (sock->BlockingRecv()) {
        LOG(ERROR, "Error resetting VROUTER. Skipping KSync Start");
        return;
    }
 
    //configure vrouter with priority_tagging configuration
    encoder.set_h_op(sandesh_op::ADD);
    encoder.set_vo_priority_tagging(agent_->params()->qos_priority_tagging());
    //Initialize rest of the fields to values so that vrouter does not take any
    //action on those field values
    InitVrouterOps(&encoder);
    len = Encode(encoder, msg, KSYNC_DEFAULT_MSG_SIZE);
    sock->BlockingSend((char *)msg, len);
    if (sock->BlockingRecv()) {
        LOG(ERROR, "Error setting Qos priority-tagging for vrouter");
    }
 
    //Get configured mpls, vmi, vni and nexthop parameters
    //from vrouter
    encoder.set_h_op(sandesh_op::GET);
    len = Encode(encoder, msg, KSYNC_DEFAULT_MSG_SIZE);
    sock->BlockingSend((char *)msg, len);
    if (sock->BlockingRecv()) {
        LOG(ERROR, "Error getting configured parameter for vrouter");
    }
 
    KSyncSock::Start(run_sync_mode);
}
 
void KSync::VnswInterfaceListenerInit() {
    vnsw_interface_listner_->Init();
}
 
void KSync::CreateVhostIntf() {
#if defined(__linux__)
    struct  nl_client *cl;
        int ret;
 
    assert((cl = nl_register_client()) != NULL);
    LogSockInitErrors((cl->cl_sock < 0), false, "cl_sock EEXIST");
    LogSockInitErrors((nl_socket(cl, AF_NETLINK, SOCK_DGRAM, NETLINK_ROUTE) > 0), true, "socket");
    ret = nl_connect(cl, 0, 0, 0);
    if(ret != 0) {
        if(!(cl->cl_sa))
            LogSockInitErrors(false, false, "cl_sa malloc failure");
        else
            LogSockInitErrors(false, true, "connect");
    }
 
    struct vn_if ifm;
    struct nl_response *resp;
 
    memset(&ifm, 0, sizeof(ifm));
    strncpy(ifm.if_name, agent_->vhost_interface_name().c_str(),
            IFNAMSIZ);
    ifm.if_name[IFNAMSIZ - 1] = '\0';
    strcpy(ifm.if_kind, VHOST_KIND);
    ifm.if_flags = IFF_UP;
 
    assert(nl_build_if_create_msg(cl, &ifm, 1) == 0);
        LogSockInitErrors((nl_sendmsg(cl) > 0), true, "sendmsg");
    ret = nl_recvmsg(cl);
    if(ret == -EOPNOTSUPP) {
      LogSockInitErrors(false, false, "cl->cl_recv_len > cl->cl_buf_len");
    } else if (ret < 0) {
      LogSockInitErrors(false, true, "recvmsg");
    }
    assert((resp = nl_parse_reply(cl)) != NULL);
    assert(resp->nl_type == NL_MSG_TYPE_ERROR);
    nl_free_client(cl);
#endif
}
 
void KSync::UpdateVhostMac() {
#if defined(__linux__)
    struct  nl_client *cl;
 
    assert((cl = nl_register_client()) != NULL);
    assert(nl_socket(cl,AF_NETLINK, SOCK_DGRAM, NETLINK_ROUTE) > 0);
    assert(nl_connect(cl, 0, 0, 0) == 0);
 
    struct vn_if ifm;
    struct nl_response *resp;
 
    memset(&ifm, 0, sizeof(ifm));
    strncpy(ifm.if_name, agent_->vhost_interface_name().c_str(),
            IFNAMSIZ);
    ifm.if_name[IFNAMSIZ - 1] = '\0';
    strcpy(ifm.if_kind, VHOST_KIND);
    ifm.if_flags = IFF_UP;
 
    //on l3mh compute vhost0 mac is set to vrrp mac instead of phy interface mac
    if (agent_->is_l3mh()) {
        agent_->vrrp_mac().ToArray((u_int8_t *)ifm.if_mac, sizeof(ifm.if_mac));
    } else {
        PhysicalInterfaceKey key(agent_->fabric_interface_name());
        Interface *eth = static_cast<Interface *>
            (agent_->interface_table()->FindActiveEntry(&key));
        eth->mac().ToArray((u_int8_t *)ifm.if_mac, sizeof(ifm.if_mac));
    }
    assert(nl_build_if_create_msg(cl, &ifm, 1) == 0);
    assert(nl_sendmsg(cl) > 0);
    assert(nl_recvmsg(cl) > 0);
    assert((resp = nl_parse_reply(cl)) != NULL);
    assert(resp->nl_type == NL_MSG_TYPE_ERROR);
    nl_free_client(cl);
#endif
}
 
void KSync::Shutdown() {
    vnsw_interface_listner_->Shutdown();
    vnsw_interface_listner_.reset(NULL);
    interface_ksync_obj_.reset(NULL);
    vrf_ksync_obj_.get()->Shutdown();
    vrf_ksync_obj_.reset(NULL);
    nh_ksync_obj_.reset(NULL);
    mpls_ksync_obj_.reset(NULL);
    ksync_flow_memory_.reset(NULL);
    ksync_bridge_memory_.reset(NULL);
    mirror_ksync_obj_.reset(NULL);
    vrf_assign_ksync_obj_.reset(NULL);
    vxlan_ksync_obj_.reset(NULL);
    qos_queue_ksync_obj_.reset(NULL);
    forwarding_class_ksync_obj_.reset(NULL);
    qos_config_ksync_obj_.reset(NULL);
    STLDeleteValues(&flow_table_ksync_obj_list_);
    KSyncSock::Shutdown();
    KSyncObjectManager::Shutdown();
}
 
void GenericNetlinkInit() {
    struct nl_client    *cl;
    int    family;
 
    assert((cl = nl_register_client()) != NULL);
    assert(nl_socket(cl, AF_NETLINK, SOCK_DGRAM, NETLINK_GENERIC) >= 0);
    assert(nl_connect(cl, 0, 0, 0) == 0);
 
    family = vrouter_obtain_family_id(cl);
    LOG(DEBUG, "Vrouter family is " << family);
    KSyncSock::SetNetlinkFamilyId(family);
    nl_free_client(cl);
}
 
KSyncTcp::KSyncTcp(Agent *agent): KSync(agent) {
}
 
void KSyncTcp::InitFlowMem() {
    ksync_flow_memory_.get()->MapSharedMemory();
    ksync_bridge_memory_.get()->MapSharedMemory();
}
 
void KSyncTcp::TcpInit() {
    EventManager *event_mgr;
    event_mgr = agent_->event_manager();
    boost::system::error_code ec;
    boost::asio::ip::address ip;
    ip = agent_->vrouter_server_ip();
    uint32_t port = agent_->vrouter_server_port();
    KSyncSockTcp::Init(event_mgr, ip, port,
                       agent_->params()->ksync_thread_cpu_pin_policy());
    KSyncSock::SetNetlinkFamilyId(24);
 
    for (int i = 0; i < KSyncSock::kRxWorkQueueCount; i++) {
        KSyncSock::SetAgentSandeshContext
            (new KSyncSandeshContext(this), i);
    }
    KSyncSockTcp *sock = static_cast<KSyncSockTcp *>(KSyncSock::Get(0));
    while (sock->connect_complete() == false) {
        sleep(1);
    }
}
 
KSyncTcp::~KSyncTcp() { }
 
void KSyncTcp::Init(bool create_vhost) {
    TcpInit();
    InitFlowMem();
    ResetVRouter(false);
    //Start async read of socket
    KSyncSockTcp *sock = static_cast<KSyncSockTcp *>(KSyncSock::Get(0));
    sock->AsyncReadStart();
    interface_ksync_obj_.get()->Init();
    for (uint16_t i = 0; i < flow_table_ksync_obj_list_.size(); i++) {
        flow_table_ksync_obj_list_[i]->Init();
    }
    ksync_flow_memory_.get()->Init();
    ksync_bridge_memory_.get()->Init();
}
 
KSyncUds::KSyncUds(Agent *agent): KSync(agent) {
}
 
void KSyncUds::InitFlowMem() {
    ksync_flow_memory_.get()->MapSharedMemory();
    ksync_bridge_memory_.get()->MapSharedMemory();
}
 
void KSyncUds::UdsInit() {
    EventManager *event_mgr;
    event_mgr = agent_->event_manager();
    boost::asio::io_context &io = *event_mgr->io_service();
    boost::system::error_code ec;
 
    string ksync_agent_vrouter_sock_path = KSYNC_AGENT_VROUTER_SOCK_PATH;
 
    ksync_agent_vrouter_sock_path = agent_->params()->cat_is_agent_mocked() ?
        agent_->params()->cat_ksocketdir() +
        "dpdk_netlink":ksync_agent_vrouter_sock_path;
 
    KSyncSockUds::Init(io, agent_->params()->ksync_thread_cpu_pin_policy(),
       ksync_agent_vrouter_sock_path);
    KSyncSock::SetNetlinkFamilyId(24);
 
    for (int i = 0; i < KSyncSock::kRxWorkQueueCount; i++) {
        KSyncSock::SetAgentSandeshContext
            (new KSyncSandeshContext(this), i);
    }
}
 
KSyncUds::~KSyncUds() { }
 
void KSyncUds::Init(bool create_vhost) {
    UdsInit();
    InitFlowMem();
    ResetVRouter(false);
    interface_ksync_obj_.get()->Init();
    for (uint16_t i = 0; i < flow_table_ksync_obj_list_.size(); i++) {
        flow_table_ksync_obj_list_[i]->Init();
    }
    ksync_flow_memory_.get()->Init();
    ksync_bridge_memory_.get()->Init();
}