diff options
author | Andreas Sandberg <andreas.sandberg@arm.com> | 2015-12-10 10:35:18 +0000 |
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committer | Andreas Sandberg <andreas.sandberg@arm.com> | 2015-12-10 10:35:18 +0000 |
commit | 23c961a0fd97251ee7c760bc2ff2a011a417ad9b (patch) | |
tree | 0481b7552303373cd3722156b1cef92d813de215 /src/dev/pktfifo.hh | |
parent | ef097ac4381ad2f14acda640ae198f04d9f7988d (diff) | |
download | gem5-23c961a0fd97251ee7c760bc2ff2a011a417ad9b.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/pktfifo.hh')
-rw-r--r-- | src/dev/pktfifo.hh | 211 |
1 files changed, 0 insertions, 211 deletions
diff --git a/src/dev/pktfifo.hh b/src/dev/pktfifo.hh deleted file mode 100644 index ea5803026..000000000 --- a/src/dev/pktfifo.hh +++ /dev/null @@ -1,211 +0,0 @@ -/* - * 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_PKTFIFO_HH__ -#define __DEV_PKTFIFO_HH__ - -#include <iosfwd> -#include <list> -#include <string> - -#include "dev/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_PKTFIFO_HH__ |