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authorAndreas Sandberg <andreas.sandberg@arm.com>2015-12-10 10:35:18 +0000
committerAndreas Sandberg <andreas.sandberg@arm.com>2015-12-10 10:35:18 +0000
commit23c961a0fd97251ee7c760bc2ff2a011a417ad9b (patch)
tree0481b7552303373cd3722156b1cef92d813de215 /src/dev/etherlink.cc
parentef097ac4381ad2f14acda640ae198f04d9f7988d (diff)
downloadgem5-23c961a0fd97251ee7c760bc2ff2a011a417ad9b.tar.xz
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
Diffstat (limited to 'src/dev/etherlink.cc')
-rw-r--r--src/dev/etherlink.cc279
1 files changed, 0 insertions, 279 deletions
diff --git a/src/dev/etherlink.cc b/src/dev/etherlink.cc
deleted file mode 100644
index 1c88a31dd..000000000
--- a/src/dev/etherlink.cc
+++ /dev/null
@@ -1,279 +0,0 @@
-/*
- * Copyright (c) 2015 ARM Limited
- * All rights reserved
- *
- * The license below extends only to copyright in the software and shall
- * not be construed as granting a license to any other intellectual
- * property including but not limited to intellectual property relating
- * to a hardware implementation of the functionality of the software
- * licensed hereunder. You may use the software subject to the license
- * terms below provided that you ensure that this notice is replicated
- * unmodified and in its entirety in all distributions of the software,
- * modified or unmodified, in source code or in binary form.
- *
- * Copyright (c) 2002-2005 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
- * Ron Dreslinski
- */
-
-/* @file
- * Device module for modelling a fixed bandwidth full duplex ethernet link
- */
-
-#include <cmath>
-#include <deque>
-#include <string>
-#include <vector>
-
-#include "base/random.hh"
-#include "base/trace.hh"
-#include "debug/Ethernet.hh"
-#include "debug/EthernetData.hh"
-#include "dev/etherdump.hh"
-#include "dev/etherint.hh"
-#include "dev/etherlink.hh"
-#include "dev/etherpkt.hh"
-#include "params/EtherLink.hh"
-#include "sim/core.hh"
-#include "sim/serialize.hh"
-#include "sim/system.hh"
-
-using namespace std;
-
-EtherLink::EtherLink(const Params *p)
- : EtherObject(p)
-{
- link[0] = new Link(name() + ".link0", this, 0, p->speed,
- p->delay, p->delay_var, p->dump);
- link[1] = new Link(name() + ".link1", this, 1, p->speed,
- p->delay, p->delay_var, p->dump);
-
- interface[0] = new Interface(name() + ".int0", link[0], link[1]);
- interface[1] = new Interface(name() + ".int1", link[1], link[0]);
-}
-
-
-EtherLink::~EtherLink()
-{
- delete link[0];
- delete link[1];
-
- delete interface[0];
- delete interface[1];
-}
-
-EtherInt*
-EtherLink::getEthPort(const std::string &if_name, int idx)
-{
- Interface *i;
- if (if_name == "int0")
- i = interface[0];
- else if (if_name == "int1")
- i = interface[1];
- else
- return NULL;
- if (i->getPeer())
- panic("interface already connected to\n");
-
- return i;
-}
-
-
-EtherLink::Interface::Interface(const string &name, Link *tx, Link *rx)
- : EtherInt(name), txlink(tx)
-{
- tx->setTxInt(this);
- rx->setRxInt(this);
-}
-
-EtherLink::Link::Link(const string &name, EtherLink *p, int num,
- double rate, Tick delay, Tick delay_var, EtherDump *d)
- : objName(name), parent(p), number(num), txint(NULL), rxint(NULL),
- ticksPerByte(rate), linkDelay(delay), delayVar(delay_var), dump(d),
- doneEvent(this), txQueueEvent(this)
-{ }
-
-void
-EtherLink::serialize(CheckpointOut &cp) const
-{
- link[0]->serialize("link0", cp);
- link[1]->serialize("link1", cp);
-}
-
-void
-EtherLink::unserialize(CheckpointIn &cp)
-{
- link[0]->unserialize("link0", cp);
- link[1]->unserialize("link1", cp);
-}
-
-void
-EtherLink::Link::txComplete(EthPacketPtr packet)
-{
- DPRINTF(Ethernet, "packet received: len=%d\n", packet->length);
- DDUMP(EthernetData, packet->data, packet->length);
- rxint->sendPacket(packet);
-}
-
-void
-EtherLink::Link::txDone()
-{
- if (dump)
- dump->dump(packet);
-
- if (linkDelay > 0) {
- DPRINTF(Ethernet, "packet delayed: delay=%d\n", linkDelay);
- txQueue.emplace_back(std::make_pair(curTick() + linkDelay, packet));
- if (!txQueueEvent.scheduled())
- parent->schedule(txQueueEvent, txQueue.front().first);
- } else {
- assert(txQueue.empty());
- txComplete(packet);
- }
-
- packet = 0;
- assert(!busy());
-
- txint->sendDone();
-}
-
-void
-EtherLink::Link::processTxQueue()
-{
- auto cur(txQueue.front());
- txQueue.pop_front();
-
- // Schedule a new event to process the next packet in the queue.
- if (!txQueue.empty()) {
- auto next(txQueue.front());
- assert(next.first > curTick());
- parent->schedule(txQueueEvent, next.first);
- }
-
- assert(cur.first == curTick());
- txComplete(cur.second);
-}
-
-bool
-EtherLink::Link::transmit(EthPacketPtr pkt)
-{
- if (busy()) {
- DPRINTF(Ethernet, "packet not sent, link busy\n");
- return false;
- }
-
- DPRINTF(Ethernet, "packet sent: len=%d\n", pkt->length);
- DDUMP(EthernetData, pkt->data, pkt->length);
-
- packet = pkt;
- Tick delay = (Tick)ceil(((double)pkt->length * ticksPerByte) + 1.0);
- if (delayVar != 0)
- delay += random_mt.random<Tick>(0, delayVar);
-
- DPRINTF(Ethernet, "scheduling packet: delay=%d, (rate=%f)\n",
- delay, ticksPerByte);
- parent->schedule(doneEvent, curTick() + delay);
-
- return true;
-}
-
-void
-EtherLink::Link::serialize(const string &base, CheckpointOut &cp) const
-{
- bool packet_exists = packet != nullptr;
- paramOut(cp, base + ".packet_exists", packet_exists);
- if (packet_exists)
- packet->serialize(base + ".packet", cp);
-
- bool event_scheduled = doneEvent.scheduled();
- paramOut(cp, base + ".event_scheduled", event_scheduled);
- if (event_scheduled) {
- Tick event_time = doneEvent.when();
- paramOut(cp, base + ".event_time", event_time);
- }
-
- const size_t tx_queue_size(txQueue.size());
- paramOut(cp, base + ".tx_queue_size", tx_queue_size);
- unsigned idx(0);
- for (const auto &pe : txQueue) {
- paramOut(cp, csprintf("%s.txQueue[%i].tick", base, idx), pe.first);
- pe.second->serialize(csprintf("%s.txQueue[%i].packet", base, idx), cp);
-
- ++idx;
- }
-}
-
-void
-EtherLink::Link::unserialize(const string &base, CheckpointIn &cp)
-{
- bool packet_exists;
- paramIn(cp, base + ".packet_exists", packet_exists);
- if (packet_exists) {
- packet = make_shared<EthPacketData>(16384);
- packet->unserialize(base + ".packet", cp);
- }
-
- bool event_scheduled;
- paramIn(cp, base + ".event_scheduled", event_scheduled);
- if (event_scheduled) {
- Tick event_time;
- paramIn(cp, base + ".event_time", event_time);
- parent->schedule(doneEvent, event_time);
- }
-
- size_t tx_queue_size;
- if (optParamIn(cp, base + ".tx_queue_size", tx_queue_size)) {
- for (size_t idx = 0; idx < tx_queue_size; ++idx) {
- Tick tick;
- EthPacketPtr delayed_packet = make_shared<EthPacketData>(16384);
-
- paramIn(cp, csprintf("%s.txQueue[%i].tick", base, idx), tick);
- delayed_packet->unserialize(
- csprintf("%s.txQueue[%i].packet", base, idx), cp);
-
- fatal_if(!txQueue.empty() && txQueue.back().first > tick,
- "Invalid txQueue packet order in EtherLink!\n");
- txQueue.emplace_back(std::make_pair(tick, delayed_packet));
- }
-
- if (!txQueue.empty())
- parent->schedule(txQueueEvent, txQueue.front().first);
- } else {
- // We can't reliably convert in-flight packets from old
- // checkpoints. In fact, gem5 hasn't been able to load these
- // packets for at least two years before the format change.
- warn("Old-style EtherLink serialization format detected, "
- "in-flight packets may have been dropped.\n");
- }
-}
-
-EtherLink *
-EtherLinkParams::create()
-{
- return new EtherLink(this);
-}