etherdevice.hh revision 9807 
1/*
2 * Copyright (c) 2007 The Regents of The University of Michigan
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are
7 * met: redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer;
9 * redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution;
12 * neither the name of the copyright holders nor the names of its
13 * contributors may be used to endorse or promote products derived from
14 * this software without specific prior written permission.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
17 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
18 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
19 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
20 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
21 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
22 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
26 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 *
28 * Authors: Ali Saidi
29 */
30
31/**
32 * @file
33 * Base Ethernet Device declaration.
34 */
35
36#ifndef __DEV_ETHERDEVICE_HH__
37#define __DEV_ETHERDEVICE_HH__
38
39#include "base/statistics.hh"
40#include "dev/pcidev.hh"
41#include "params/EtherDevice.hh"
42#include "params/EtherDevBase.hh"
43#include "sim/sim_object.hh"
44
45class EtherInt;
46
47/**
48 * The base EtherObject class, allows for an accesor function to a
49 * simobj that returns the Port.
50 */
51class EtherDevice : public PciDevice
52{
53  public:
54    typedef EtherDeviceParams Params;
55    EtherDevice(const Params *params)
56        : PciDevice(params)
57    {}
58
59    const Params *
60    params() const
61    {
62        return dynamic_cast<const Params *>(_params);
63    }
64
65  public:
66    /** Additional function to return the Port of a memory object. */
67    virtual EtherInt *getEthPort(const std::string &if_name, int idx = -1) = 0;
68
69  public:
70    void regStats();
71
72  protected:
73    Stats::Scalar txBytes;
74    Stats::Scalar rxBytes;
75    Stats::Scalar txPackets;
76    Stats::Scalar rxPackets;
77    Stats::Scalar txIpChecksums;
78    Stats::Scalar rxIpChecksums;
79    Stats::Scalar txTcpChecksums;
80    Stats::Scalar rxTcpChecksums;
81    Stats::Scalar txUdpChecksums;
82    Stats::Scalar rxUdpChecksums;
83    Stats::Scalar descDmaReads;
84    Stats::Scalar descDmaWrites;
85    Stats::Scalar descDmaRdBytes;
86    Stats::Scalar descDmaWrBytes;
87    Stats::Formula totBandwidth;
88    Stats::Formula totPackets;
89    Stats::Formula totBytes;
90    Stats::Formula totPacketRate;
91    Stats::Formula txBandwidth;
92    Stats::Formula rxBandwidth;
93    Stats::Formula txPacketRate;
94    Stats::Formula rxPacketRate;
95    Stats::Scalar postedSwi;
96    Stats::Formula coalescedSwi;
97    Stats::Scalar totalSwi;
98    Stats::Scalar postedRxIdle;
99    Stats::Formula coalescedRxIdle;
100    Stats::Scalar totalRxIdle;
101    Stats::Scalar postedRxOk;
102    Stats::Formula coalescedRxOk;
103    Stats::Scalar totalRxOk;
104    Stats::Scalar postedRxDesc;
105    Stats::Formula coalescedRxDesc;
106    Stats::Scalar totalRxDesc;
107    Stats::Scalar postedTxOk;
108    Stats::Formula coalescedTxOk;
109    Stats::Scalar totalTxOk;
110    Stats::Scalar postedTxIdle;
111    Stats::Formula coalescedTxIdle;
112    Stats::Scalar totalTxIdle;
113    Stats::Scalar postedTxDesc;
114    Stats::Formula coalescedTxDesc;
115    Stats::Scalar totalTxDesc;
116    Stats::Scalar postedRxOrn;
117    Stats::Formula coalescedRxOrn;
118    Stats::Scalar totalRxOrn;
119    Stats::Formula coalescedTotal;
120    Stats::Scalar postedInterrupts;
121    Stats::Scalar droppedPackets;
122};
123
124/**
125 * Dummy class to keep the Python class hierarchy in sync with the C++
126 * object hierarchy.
127 *
128 * The Python object hierarchy includes the EtherDevBase class which
129 * is used by some ethernet devices as a way to share common
130 * configuration information in the generated param structs. Since the
131 * Python hierarchy is used to generate a SWIG interface for all C++
132 * SimObjects, we need to reflect this in the C++ object hierarchy. If
133 * we don't, SWIG might end up doing 'bad things' when it down casts
134 * ethernet objects to their base class(es).
135 */
136class EtherDevBase : public EtherDevice
137{
138  public:
139    EtherDevBase(const EtherDevBaseParams *params)
140        : EtherDevice(params)
141    {}
142
143    const EtherDevBaseParams *
144    params() const
145    {
146        return dynamic_cast<const EtherDevBaseParams *>(_params);
147    }
148
149};
150
151#endif //__DEV_ETHERDEVICE_HH__
152