Update copyright dates and author list SConscript: arch/alpha/alpha_linux_process.cc: arch/alpha/alpha_linux_process.hh: arch/alpha/alpha_memory.cc: arch/alpha/alpha_memory.hh: arch/alpha/alpha_tru64_process.cc: arch/alpha/alpha_tru64_process.hh: arch/alpha/aout_machdep.h: arch/alpha/arguments.cc: arch/alpha/arguments.hh: arch/alpha/ev5.cc: arch/alpha/ev5.hh: arch/alpha/faults.cc: arch/alpha/faults.hh: arch/alpha/isa_desc: arch/alpha/isa_traits.hh: arch/alpha/osfpal.cc: arch/alpha/osfpal.hh: arch/alpha/pseudo_inst.cc: arch/alpha/pseudo_inst.hh: arch/alpha/vptr.hh: arch/alpha/vtophys.cc: arch/alpha/vtophys.hh: base/bitfield.hh: base/callback.hh: base/circlebuf.cc: base/circlebuf.hh: base/cprintf.cc: base/cprintf.hh: base/cprintf_formats.hh: base/crc.hh: base/date.cc: base/dbl_list.hh: base/endian.hh: base/fast_alloc.cc: base/fast_alloc.hh: base/fifo_buffer.cc: base/fifo_buffer.hh: base/hashmap.hh: base/hostinfo.cc: base/hostinfo.hh: base/hybrid_pred.cc: base/hybrid_pred.hh: base/inet.cc: base/inet.hh: base/inifile.cc: base/inifile.hh: base/intmath.cc: base/intmath.hh: base/match.cc: base/match.hh: base/misc.cc: base/misc.hh: base/mod_num.hh: base/mysql.cc: base/mysql.hh: base/output.cc: base/output.hh: base/pollevent.cc: base/pollevent.hh: base/predictor.hh: base/random.cc: base/random.hh: base/range.cc: base/range.hh: base/refcnt.hh: base/remote_gdb.cc: base/remote_gdb.hh: base/res_list.hh: base/sat_counter.cc: base/sat_counter.hh: base/sched_list.hh: base/socket.cc: base/socket.hh: base/statistics.cc: base/statistics.hh: base/compression/lzss_compression.cc: base/compression/lzss_compression.hh: base/compression/null_compression.hh: base/loader/aout_object.cc: base/loader/aout_object.hh: base/loader/ecoff_object.cc: base/loader/ecoff_object.hh: base/loader/elf_object.cc: base/loader/elf_object.hh: base/loader/object_file.cc: base/loader/object_file.hh: base/loader/symtab.cc: base/loader/symtab.hh: base/stats/events.cc: base/stats/events.hh: base/stats/flags.hh: base/stats/mysql.cc: base/stats/mysql.hh: base/stats/mysql_run.hh: base/stats/output.hh: base/stats/statdb.cc: base/stats/statdb.hh: base/stats/text.cc: base/stats/text.hh: base/stats/types.hh: base/stats/visit.cc: base/stats/visit.hh: base/str.cc: base/str.hh: base/time.cc: base/time.hh: base/timebuf.hh: base/trace.cc: base/trace.hh: base/userinfo.cc: base/userinfo.hh: build/SConstruct: cpu/base.cc: cpu/base.hh: cpu/base_dyn_inst.cc: cpu/base_dyn_inst.hh: cpu/exec_context.cc: cpu/exec_context.hh: cpu/exetrace.cc: cpu/exetrace.hh: cpu/inst_seq.hh: cpu/intr_control.cc: cpu/intr_control.hh: cpu/memtest/memtest.cc: cpu/pc_event.cc: cpu/pc_event.hh: cpu/smt.hh: cpu/static_inst.cc: cpu/static_inst.hh: cpu/memtest/memtest.hh: cpu/o3/sat_counter.cc: cpu/o3/sat_counter.hh: cpu/ozone/cpu.hh: cpu/simple/cpu.cc: cpu/simple/cpu.hh: cpu/trace/opt_cpu.cc: cpu/trace/opt_cpu.hh: cpu/trace/reader/ibm_reader.cc: cpu/trace/reader/ibm_reader.hh: cpu/trace/reader/itx_reader.cc: cpu/trace/reader/itx_reader.hh: cpu/trace/reader/m5_reader.cc: cpu/trace/reader/m5_reader.hh: cpu/trace/reader/mem_trace_reader.cc: cpu/trace/reader/mem_trace_reader.hh: cpu/trace/trace_cpu.cc: cpu/trace/trace_cpu.hh: dev/alpha_access.h: dev/alpha_console.cc: dev/alpha_console.hh: dev/baddev.cc: dev/baddev.hh: dev/disk_image.cc: dev/disk_image.hh: dev/etherbus.cc: dev/etherbus.hh: dev/etherdump.cc: dev/etherdump.hh: dev/etherint.cc: dev/etherint.hh: dev/etherlink.cc: dev/etherlink.hh: dev/etherpkt.cc: dev/etherpkt.hh: dev/ethertap.cc: dev/ethertap.hh: dev/ide_ctrl.cc: dev/ide_ctrl.hh: dev/ide_disk.cc: dev/ide_disk.hh: dev/io_device.cc: dev/io_device.hh: dev/ns_gige.cc: dev/ns_gige.hh: dev/ns_gige_reg.h: dev/pciconfigall.cc: dev/pciconfigall.hh: dev/pcidev.cc: dev/pcidev.hh: dev/pcireg.h: dev/pktfifo.cc: dev/pktfifo.hh: dev/platform.cc: dev/platform.hh: dev/simconsole.cc: dev/simconsole.hh: dev/simple_disk.cc: dev/simple_disk.hh: dev/sinic.cc: dev/sinic.hh: dev/sinicreg.hh: dev/tsunami.cc: dev/tsunami.hh: dev/tsunami_cchip.cc: dev/tsunami_cchip.hh: dev/tsunami_io.cc: dev/tsunami_io.hh: dev/tsunami_pchip.cc: dev/tsunami_pchip.hh: dev/tsunamireg.h: dev/uart.cc: dev/uart.hh: dev/uart8250.cc: dev/uart8250.hh: docs/stl.hh: encumbered/cpu/full/op_class.hh: kern/kernel_stats.cc: kern/kernel_stats.hh: kern/linux/linux.hh: kern/linux/linux_syscalls.cc: kern/linux/linux_syscalls.hh: kern/linux/linux_system.cc: kern/linux/linux_system.hh: kern/linux/linux_threadinfo.hh: kern/linux/printk.cc: kern/linux/printk.hh: kern/system_events.cc: kern/system_events.hh: kern/tru64/dump_mbuf.cc: kern/tru64/dump_mbuf.hh: kern/tru64/mbuf.hh: kern/tru64/printf.cc: kern/tru64/printf.hh: kern/tru64/tru64.hh: kern/tru64/tru64_events.cc: kern/tru64/tru64_events.hh: kern/tru64/tru64_syscalls.cc: kern/tru64/tru64_syscalls.hh: kern/tru64/tru64_system.cc: kern/tru64/tru64_system.hh: python/SConscript: python/m5/__init__.py: python/m5/config.py: python/m5/convert.py: python/m5/multidict.py: python/m5/smartdict.py: sim/async.hh: sim/builder.cc: sim/builder.hh: sim/debug.cc: sim/debug.hh: sim/eventq.cc: sim/eventq.hh: sim/host.hh: sim/main.cc: sim/param.cc: sim/param.hh: sim/process.cc: sim/process.hh: sim/root.cc: sim/serialize.cc: sim/serialize.hh: sim/sim_events.cc: sim/sim_events.hh: sim/sim_exit.hh: sim/sim_object.cc: sim/sim_object.hh: sim/startup.cc: sim/startup.hh: sim/stat_control.cc: sim/stat_control.hh: sim/stats.hh: sim/syscall_emul.cc: sim/syscall_emul.hh: sim/system.cc: sim/system.hh: test/bitvectest.cc: test/circletest.cc: test/cprintftest.cc: test/genini.py: test/initest.cc: test/lru_test.cc: test/nmtest.cc: test/offtest.cc: test/paramtest.cc: test/rangetest.cc: test/sized_test.cc: test/stattest.cc: test/strnumtest.cc: test/symtest.cc: test/tokentest.cc: test/tracetest.cc: util/ccdrv/devtime.c: util/m5/m5.c: util/oprofile-top.py: util/rundiff: util/m5/m5op.h: util/m5/m5op.s: util/stats/db.py: util/stats/dbinit.py: util/stats/display.py: util/stats/info.py: util/stats/print.py: util/stats/stats.py: util/tap/tap.cc: Update copyright dates and author list --HG-- extra : convert_revision : 0faba08fc0fc0146f1efb7f61e4b043c020ff9e4
292 lines
7.9 KiB
C++
292 lines
7.9 KiB
C++
/*
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* Copyright (c) 2002-2005 The Regents of The University of Michigan
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met: redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer;
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* redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution;
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* neither the name of the copyright holders nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/* @file
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* Device module for modelling a fixed bandwidth full duplex ethernet link
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*/
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#include <cmath>
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#include <deque>
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#include <string>
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#include <vector>
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#include "base/trace.hh"
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#include "dev/etherdump.hh"
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#include "dev/etherint.hh"
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#include "dev/etherlink.hh"
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#include "dev/etherpkt.hh"
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#include "sim/builder.hh"
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#include "sim/serialize.hh"
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#include "sim/system.hh"
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#include "sim/root.hh"
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using namespace std;
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EtherLink::EtherLink(const string &name, EtherInt *peer0, EtherInt *peer1,
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double rate, Tick delay, EtherDump *dump)
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: SimObject(name)
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{
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link[0] = new Link(name + ".link0", this, 0, rate, delay, dump);
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link[1] = new Link(name + ".link1", this, 1, rate, delay, dump);
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interface[0] = new Interface(name + ".int0", link[0], link[1]);
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interface[1] = new Interface(name + ".int1", link[1], link[0]);
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interface[0]->setPeer(peer0);
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peer0->setPeer(interface[0]);
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interface[1]->setPeer(peer1);
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peer1->setPeer(interface[1]);
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}
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EtherLink::~EtherLink()
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{
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delete link[0];
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delete link[1];
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delete interface[0];
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delete interface[1];
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}
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EtherLink::Interface::Interface(const string &name, Link *tx, Link *rx)
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: EtherInt(name), txlink(tx)
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{
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tx->setTxInt(this);
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rx->setRxInt(this);
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}
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EtherLink::Link::Link(const string &name, EtherLink *p, int num,
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double rate, Tick delay, EtherDump *d)
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: objName(name), parent(p), number(num), txint(NULL), rxint(NULL),
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ticksPerByte(rate), linkDelay(delay), dump(d),
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doneEvent(this)
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{ }
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void
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EtherLink::serialize(ostream &os)
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{
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link[0]->serialize("link0", os);
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link[1]->serialize("link1", os);
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}
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void
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EtherLink::unserialize(Checkpoint *cp, const string §ion)
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{
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link[0]->unserialize("link0", cp, section);
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link[1]->unserialize("link1", cp, section);
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}
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void
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EtherLink::Link::txComplete(PacketPtr packet)
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{
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DPRINTF(Ethernet, "packet received: len=%d\n", packet->length);
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DDUMP(EthernetData, packet->data, packet->length);
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rxint->sendPacket(packet);
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}
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class LinkDelayEvent : public Event
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{
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protected:
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EtherLink::Link *link;
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PacketPtr packet;
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public:
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// non-scheduling version for createForUnserialize()
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LinkDelayEvent();
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LinkDelayEvent(EtherLink::Link *link, PacketPtr pkt, Tick when);
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void process();
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virtual void serialize(ostream &os);
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virtual void unserialize(Checkpoint *cp, const string §ion);
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static Serializable *createForUnserialize(Checkpoint *cp,
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const string §ion);
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};
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void
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EtherLink::Link::txDone()
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{
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if (dump)
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dump->dump(packet);
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if (linkDelay > 0) {
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DPRINTF(Ethernet, "packet delayed: delay=%d\n", linkDelay);
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new LinkDelayEvent(this, packet, curTick + linkDelay);
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} else {
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txComplete(packet);
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}
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packet = 0;
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assert(!busy());
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txint->sendDone();
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}
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bool
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EtherLink::Link::transmit(PacketPtr pkt)
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{
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if (busy()) {
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DPRINTF(Ethernet, "packet not sent, link busy\n");
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return false;
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}
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DPRINTF(Ethernet, "packet sent: len=%d\n", pkt->length);
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DDUMP(EthernetData, pkt->data, pkt->length);
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packet = pkt;
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Tick delay = (Tick)ceil(((double)pkt->length * ticksPerByte) + 1.0);
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DPRINTF(Ethernet, "scheduling packet: delay=%d, (rate=%f)\n",
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delay, ticksPerByte);
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doneEvent.schedule(curTick + delay);
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return true;
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}
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void
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EtherLink::Link::serialize(const string &base, ostream &os)
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{
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bool packet_exists = packet;
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paramOut(os, base + ".packet_exists", packet_exists);
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if (packet_exists)
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packet->serialize(base + ".packet", os);
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bool event_scheduled = doneEvent.scheduled();
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paramOut(os, base + ".event_scheduled", event_scheduled);
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if (event_scheduled) {
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Tick event_time = doneEvent.when();
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paramOut(os, base + ".event_time", event_time);
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}
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}
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void
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EtherLink::Link::unserialize(const string &base, Checkpoint *cp,
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const string §ion)
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{
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bool packet_exists;
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paramIn(cp, section, base + ".packet_exists", packet_exists);
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if (packet_exists) {
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packet = new PacketData(16384);
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packet->unserialize(base + ".packet", cp, section);
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}
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bool event_scheduled;
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paramIn(cp, section, base + ".event_scheduled", event_scheduled);
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if (event_scheduled) {
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Tick event_time;
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paramIn(cp, section, base + ".event_time", event_time);
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doneEvent.schedule(event_time);
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}
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}
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LinkDelayEvent::LinkDelayEvent()
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: Event(&mainEventQueue), link(NULL)
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{
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setFlags(AutoSerialize);
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setFlags(AutoDelete);
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}
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LinkDelayEvent::LinkDelayEvent(EtherLink::Link *l, PacketPtr p, Tick when)
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: Event(&mainEventQueue), link(l), packet(p)
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{
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setFlags(AutoSerialize);
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setFlags(AutoDelete);
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schedule(when);
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}
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void
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LinkDelayEvent::process()
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{
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link->txComplete(packet);
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}
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void
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LinkDelayEvent::serialize(ostream &os)
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{
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paramOut(os, "type", string("LinkDelayEvent"));
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Event::serialize(os);
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EtherLink *parent = link->parent;
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bool number = link->number;
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SERIALIZE_OBJPTR(parent);
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SERIALIZE_SCALAR(number);
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packet->serialize("packet", os);
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}
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void
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LinkDelayEvent::unserialize(Checkpoint *cp, const string §ion)
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{
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Event::unserialize(cp, section);
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EtherLink *parent;
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bool number;
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UNSERIALIZE_OBJPTR(parent);
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UNSERIALIZE_SCALAR(number);
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link = parent->link[number];
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packet = new PacketData(16384);
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packet->unserialize("packet", cp, section);
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}
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Serializable *
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LinkDelayEvent::createForUnserialize(Checkpoint *cp, const string §ion)
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{
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return new LinkDelayEvent();
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}
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REGISTER_SERIALIZEABLE("LinkDelayEvent", LinkDelayEvent)
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BEGIN_DECLARE_SIM_OBJECT_PARAMS(EtherLink)
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SimObjectParam<EtherInt *> int1;
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SimObjectParam<EtherInt *> int2;
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Param<double> speed;
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Param<Tick> delay;
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SimObjectParam<EtherDump *> dump;
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END_DECLARE_SIM_OBJECT_PARAMS(EtherLink)
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BEGIN_INIT_SIM_OBJECT_PARAMS(EtherLink)
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INIT_PARAM(int1, "interface 1"),
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INIT_PARAM(int2, "interface 2"),
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INIT_PARAM(speed, "link speed in bits per second"),
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INIT_PARAM(delay, "transmit delay of packets in us"),
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INIT_PARAM(dump, "object to dump network packets to")
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END_INIT_SIM_OBJECT_PARAMS(EtherLink)
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CREATE_SIM_OBJECT(EtherLink)
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{
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return new EtherLink(getInstanceName(), int1, int2, speed, delay, dump);
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}
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REGISTER_SIM_OBJECT("EtherLink", EtherLink)
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