dev: Move network devices to src/dev/net/

--HG--
rename : src/dev/Ethernet.py => src/dev/net/Ethernet.py
rename : src/dev/etherbus.cc => src/dev/net/etherbus.cc
rename : src/dev/etherbus.hh => src/dev/net/etherbus.hh
rename : src/dev/etherdevice.cc => src/dev/net/etherdevice.cc
rename : src/dev/etherdevice.hh => src/dev/net/etherdevice.hh
rename : src/dev/etherdump.cc => src/dev/net/etherdump.cc
rename : src/dev/etherdump.hh => src/dev/net/etherdump.hh
rename : src/dev/etherint.cc => src/dev/net/etherint.cc
rename : src/dev/etherint.hh => src/dev/net/etherint.hh
rename : src/dev/etherlink.cc => src/dev/net/etherlink.cc
rename : src/dev/etherlink.hh => src/dev/net/etherlink.hh
rename : src/dev/etherobject.hh => src/dev/net/etherobject.hh
rename : src/dev/etherpkt.cc => src/dev/net/etherpkt.cc
rename : src/dev/etherpkt.hh => src/dev/net/etherpkt.hh
rename : src/dev/ethertap.cc => src/dev/net/ethertap.cc
rename : src/dev/ethertap.hh => src/dev/net/ethertap.hh
rename : src/dev/i8254xGBe.cc => src/dev/net/i8254xGBe.cc
rename : src/dev/i8254xGBe.hh => src/dev/net/i8254xGBe.hh
rename : src/dev/i8254xGBe_defs.hh => src/dev/net/i8254xGBe_defs.hh
rename : src/dev/multi_etherlink.cc => src/dev/net/multi_etherlink.cc
rename : src/dev/multi_etherlink.hh => src/dev/net/multi_etherlink.hh
rename : src/dev/multi_iface.cc => src/dev/net/multi_iface.cc
rename : src/dev/multi_iface.hh => src/dev/net/multi_iface.hh
rename : src/dev/multi_packet.cc => src/dev/net/multi_packet.cc
rename : src/dev/multi_packet.hh => src/dev/net/multi_packet.hh
rename : src/dev/ns_gige.cc => src/dev/net/ns_gige.cc
rename : src/dev/ns_gige.hh => src/dev/net/ns_gige.hh
rename : src/dev/ns_gige_reg.h => src/dev/net/ns_gige_reg.h
rename : src/dev/pktfifo.cc => src/dev/net/pktfifo.cc
rename : src/dev/pktfifo.hh => src/dev/net/pktfifo.hh
rename : src/dev/sinic.cc => src/dev/net/sinic.cc
rename : src/dev/sinic.hh => src/dev/net/sinic.hh
rename : src/dev/sinicreg.hh => src/dev/net/sinicreg.hh
rename : src/dev/tcp_iface.cc => src/dev/net/tcp_iface.cc
rename : src/dev/tcp_iface.hh => src/dev/net/tcp_iface.hh

1 files changed, 212 insertions, 0 deletions

diff --git a/src/dev/net/pktfifo.hh b/src/dev/net/pktfifo.hh
new file mode 100644
index 000000000..5ef75423c
--- /dev/null
+++ b/src/dev/net/pktfifo.hh
@@ -0,0 +1,212 @@
+/*
+ * Copyright (c) 2004-2005 The Regents of The University of Michigan
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met: redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer;
+ * redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution;
+ * neither the name of the copyright holders nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * Authors: Nathan Binkert
+ */
+
+#ifndef __DEV_NET_PKTFIFO_HH__
+#define __DEV_NET_PKTFIFO_HH__
+
+#include <iosfwd>
+#include <list>
+#include <string>
+
+#include "base/misc.hh"
+#include "dev/net/etherpkt.hh"
+#include "sim/serialize.hh"
+
+class Checkpoint;
+
+struct PacketFifoEntry
+{
+    EthPacketPtr packet;
+    uint64_t number;
+    unsigned slack;
+    int priv;
+
+    PacketFifoEntry()
+    {
+        clear();
+    }
+
+    PacketFifoEntry(const PacketFifoEntry &s)
+        : packet(s.packet), number(s.number), slack(s.slack), priv(s.priv)
+    {
+    }
+
+    PacketFifoEntry(EthPacketPtr p, uint64_t n)
+        : packet(p), number(n), slack(0), priv(-1)
+    {
+    }
+
+    void clear()
+    {
+        packet = NULL;
+        number = 0;
+        slack = 0;
+        priv = -1;
+    }
+
+    void serialize(const std::string &base, CheckpointOut &cp) const;
+    void unserialize(const std::string &base, CheckpointIn &cp);
+};
+
+class PacketFifo
+{
+  public:
+
+    typedef std::list<PacketFifoEntry> fifo_list;
+    typedef fifo_list::iterator iterator;
+    typedef fifo_list::const_iterator const_iterator;
+
+  protected:
+    std::list<PacketFifoEntry> fifo;
+    uint64_t _counter;
+    unsigned _maxsize;
+    unsigned _size;
+    unsigned _reserved;
+
+  public:
+    explicit PacketFifo(int max)
+        : _counter(0), _maxsize(max), _size(0), _reserved(0) {}
+    virtual ~PacketFifo() {}
+
+    unsigned packets() const { return fifo.size(); }
+    unsigned maxsize() const { return _maxsize; }
+    unsigned size() const { return _size; }
+    unsigned reserved() const { return _reserved; }
+    unsigned avail() const { return _maxsize - _size - _reserved; }
+    bool empty() const { return size() <= 0; }
+    bool full() const { return avail() <= 0; }
+
+    unsigned
+    reserve(unsigned len = 0)
+    {
+        _reserved += len;
+        assert(avail() >= 0);
+        return _reserved;
+    }
+
+    iterator begin() { return fifo.begin(); }
+    iterator end() { return fifo.end(); }
+
+    const_iterator begin() const { return fifo.begin(); }
+    const_iterator end() const { return fifo.end(); }
+
+    EthPacketPtr front() { return fifo.begin()->packet; }
+
+    bool push(EthPacketPtr ptr)
+    {
+        assert(ptr->length);
+        assert(_reserved <= ptr->length);
+        if (avail() < ptr->length - _reserved)
+            return false;
+
+        _size += ptr->length;
+
+        PacketFifoEntry entry;
+        entry.packet = ptr;
+        entry.number = _counter++;
+        fifo.push_back(entry);
+        _reserved = 0;
+        return true;
+    }
+
+    void pop()
+    {
+        if (empty())
+            return;
+
+        iterator entry = fifo.begin();
+        _size -= entry->packet->length;
+        _size -= entry->slack;
+        entry->packet = NULL;
+        fifo.pop_front();
+    }
+
+    void clear()
+    {
+        for (iterator i = begin(); i != end(); ++i)
+            i->clear();
+        fifo.clear();
+        _size = 0;
+        _reserved = 0;
+    }
+
+    void remove(iterator i)
+    {
+        if (i != fifo.begin()) {
+            iterator prev = i;
+            --prev;
+            assert(prev != fifo.end());
+            prev->slack += i->packet->length;
+            prev->slack += i->slack;
+        } else {
+            _size -= i->packet->length;
+            _size -= i->slack;
+        }
+
+        i->clear();
+        fifo.erase(i);
+    }
+
+    bool copyout(void *dest, unsigned offset, unsigned len);
+
+    int countPacketsBefore(const_iterator i) const
+    {
+        if (i == fifo.end())
+            return 0;
+        return i->number - fifo.begin()->number;
+    }
+
+    int countPacketsAfter(const_iterator i) const
+    {
+        auto end = fifo.end();
+        if (i == end)
+            return 0;
+        return (--end)->number - i->number;
+    }
+
+    void check() const
+    {
+        unsigned total = 0;
+        for (auto i = begin(); i != end(); ++i)
+            total += i->packet->length + i->slack;
+
+        if (total != _size)
+            panic("total (%d) is not == to size (%d)\n", total, _size);
+    }
+
+/**
+ * Serialization stuff
+ */
+  public:
+    void serialize(const std::string &base, CheckpointOut &cp) const;
+    void unserialize(const std::string &base, CheckpointIn &cp);
+};
+
+#endif // __DEV_NET_PKTFIFO_HH__