dpdk-net-device.h

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/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
/*
 * 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_ring.h>
#include <rte_mempool.h>
#include <rte_cycles.h>

struct rte_eth_dev_tx_buffer;
struct rte_mbuf;

namespace ns3
{

class DpdkNetDevice : public FdNetDevice
{
public:
  static TypeId GetTypeId (void);

  DpdkNetDevice ();

  ~DpdkNetDevice ();

  void CheckAllPortsLinkStatus (void);

  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 (void) 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 (void);
  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;
};

} //

#endif /* DPDK_NET_DEVICE_H */