2 * Copyright (c) 2020 Advanced Micro Devices, Inc.
5 * For use for simulation and test purposes only
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions are met:
10 * 1. Redistributions of source code must retain the above copyright notice,
11 * this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright notice,
14 * this list of conditions and the following disclaimer in the documentation
15 * and/or other materials provided with the distribution.
17 * 3. Neither the name of the copyright holder nor the names of its
18 * contributors may be used to endorse or promote products derived from this
19 * software without specific prior written permission.
21 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
22 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
25 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
26 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
27 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
28 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
29 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
30 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
31 * POSSIBILITY OF SUCH DAMAGE.
33 * Authors: Srikant Bharadwaj
36 #ifndef __MEM_RUBY_NETWORK_GARNET2_0_NETWORK_BRIDGE_HH__
37 #define __MEM_RUBY_NETWORK_GARNET2_0_NETWORK_BRIDGE_HH__
43 #include "mem/ruby/common/Consumer.hh"
44 #include "mem/ruby/network/garnet2.0/CommonTypes.hh"
45 #include "mem/ruby/network/garnet2.0/CreditLink.hh"
46 #include "mem/ruby/network/garnet2.0/GarnetLink.hh"
47 #include "mem/ruby/network/garnet2.0/NetworkLink.hh"
48 #include "mem/ruby/network/garnet2.0/flitBuffer.hh"
49 #include "params/NetworkBridge.hh"
53 class NetworkBridge: public CreditLink
56 typedef NetworkBridgeParams Params;
57 NetworkBridge(const Params *p);
60 void initBridge(NetworkBridge *coBrid, bool cdc_en, bool serdes_en);
63 void neutralize(int vc, int eCredit);
65 void scheduleFlit(flit *t_flit, Cycles latency);
66 void flitisizeAndSend(flit *t_flit);
67 void setVcsPerVnet(uint32_t consumerVcs);
70 // Pointer to co-existing bridge
71 // CreditBridge for Network Bridge and vice versa
72 NetworkBridge *coBridge;
74 // Link connected toBridge
75 // could be a source or destination
81 // SerDes enable/disable
92 // Used by Credit Deserializer
93 std::vector<int> lenBuffer;
94 std::vector<int> sizeSent;
95 std::vector<int> flitsSent;
96 std::vector<std::queue<int>> extraCredit;
100 #endif // __MEM_RUBY_NETWORK_GARNET2_0_NETWORK_BRIDGE_HH__