dpdk-net-device.h

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/*
 * Copyright (c) 2019 NITK Surathkal
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation;
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 * Author: Harsh Patel <thadodaharsh10@gmail.com>
 *         Hrishikesh Hiraskar <hrishihiraskar@gmail.com>
 *         Mohit P. Tahiliani <tahiliani@nitk.edu.in>
 */
 
#ifndef DPDK_NET_DEVICE_H
#define DPDK_NET_DEVICE_H
 
#include "fd-net-device.h"
 
#include <rte_cycles.h>
#include <rte_mempool.h>
#include <rte_ring.h>
 
struct rte_eth_dev_tx_buffer;
struct rte_mbuf;
 
namespace ns3
{
 
class DpdkNetDevice : public FdNetDevice
{
  public:
    static TypeId GetTypeId();
 
    DpdkNetDevice();
 
    ~DpdkNetDevice();
 
    void CheckAllPortsLinkStatus();
 
    void InitDpdk(int argc, char** argv, std::string dpdkDriver);
 
    void SetDeviceName(std::string deviceName);
 
    static void SignalHandler(int signum);
 
    static int LaunchCore(void* arg);
 
    void HandleTx();
 
    void HandleRx();
 
    bool IsLinkUp() const;
 
    virtual void FreeBuffer(uint8_t* buf);
 
    virtual uint8_t* AllocateBuffer(size_t len);
 
  protected:
    ssize_t Write(uint8_t* buffer, size_t length);
 
    uint16_t m_portId;
 
    std::string m_deviceName;
 
  private:
    void DoFinishStoppingDevice();
    static volatile bool m_forceQuit;
 
    struct rte_mempool* m_mempool;
 
    struct rte_eth_dev_tx_buffer* m_txBuffer;
 
    struct rte_eth_dev_tx_buffer* m_rxBuffer;
 
    EventId m_txEvent;
 
    Time m_txTimeout;
 
    uint32_t m_maxRxPktBurst;
 
    uint32_t m_maxTxPktBurst;
 
    uint32_t m_mempoolCacheSize;
 
    uint16_t m_nbRxDesc;
 
    uint16_t m_nbTxDesc;
};
 
} // namespace ns3
 
#endif /* DPDK_NET_DEVICE_H */