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/net/tcp_iface.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/net/tcp_iface.hh')
-rw-r--r-- | src/dev/net/tcp_iface.hh | 133 |
1 files changed, 133 insertions, 0 deletions
diff --git a/src/dev/net/tcp_iface.hh b/src/dev/net/tcp_iface.hh new file mode 100644 index 000000000..2eb2c1c07 --- /dev/null +++ b/src/dev/net/tcp_iface.hh @@ -0,0 +1,133 @@ +/* + * 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. + * + * 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: Gabor Dozsa + */ + +/* @file + * TCP stream socket based interface class for multi gem5 runs. + * + * For a high level description about multi gem5 see comments in + * header file multi_iface.hh. + * + * The TCP subclass of MultiIface uses a separate server process + * (see tcp_server.[hh,cc] under directory gem5/util/multi). Each gem5 + * process connects to the server via a stream socket. The server process + * transfers messages and co-ordinates the synchronisation among the gem5 + * peers. + */ +#ifndef __DEV_NET_TCP_IFACE_HH__ +#define __DEV_NET_TCP_IFACE_HH__ + + +#include <string> + +#include "dev/net/multi_iface.hh" + +class EventManager; + +class TCPIface : public MultiIface +{ + private: + /** + * The stream socket to connect to the server. + */ + int sock; + + /** + * Registry for all sockets to the server opened by this gem5 process. + */ + static std::vector<int> sockRegistry; + + private: + + /** + * Send out a message through a TCP stream socket. + * + * @param sock TCP stream socket. + * @param buf Start address of the message. + * @param length Size of the message in bytes. + */ + void + sendTCP(int sock, void *buf, unsigned length); + + /** + * Receive the next incoming message through a TCP stream socket. + * + * @param sock TCP stream socket. + * @param buf Start address of buffer to store the message. + * @param length Exact size of the expected message in bytes. + */ + bool recvTCP(int sock, void *buf, unsigned length); + + + protected: + + virtual void + sendRaw(void *buf, unsigned length, + const MultiHeaderPkt::AddressType dest_addr=nullptr) override + { + sendTCP(sock, buf, length); + } + + virtual bool recvRaw(void *buf, unsigned length) override + { + return recvTCP(sock, buf, length); + } + + virtual void syncRaw(MultiHeaderPkt::MsgType sync_req, + Tick sync_tick) override; + + public: + /** + * The ctor creates and connects the stream socket to the server. + * @param server_name The name (or IP address) of the host running the + * server process. + * @param server_port The port number the server listening for new + * connections. + * @param sync_start The tick for the first multi synchronisation. + * @param sync_repeat The frequency of multi synchronisation. + * @param em The EventManager object associated with the simulated + * Ethernet link. + */ + TCPIface(std::string server_name, unsigned server_port, + unsigned multi_rank, Tick sync_start, Tick sync_repeat, + EventManager *em); + + ~TCPIface() override; +}; + +#endif // __DEV_NET_TCP_IFACE_HH__ |