ruby: rename ALPHA_Network_test protocol to Garnet_standalone.

Over the past 6 years, we realized that the protocol is essentially used
to run the garnet network in a standalone manner, and feed standard synthetic
traffic patterns through it.

build_opts/Garnet_standalone

@@ -1,3 +1,4 @@
+TARGET_ISA = 'alpha'
 SS_COMPATIBLE_FP = 1
 CPU_MODELS = 'AtomicSimpleCPU,TimingSimpleCPU,O3CPU,MinorCPU'
-PROTOCOL = 'Network_test'
+PROTOCOL = 'Garnet_standalone'

configs/ruby/Garnet_standalone.py

@@ -1,5 +1,5 @@
-# Copyright (c) 2006-2007 The Regents of The University of Michigan
 # Copyright (c) 2009 Advanced Micro Devices, Inc.
+# Copyright (c) 2016 Georgia Institute of Technology
 # All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
@@ -26,6 +26,7 @@
 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #
 # Authors: Brad Beckmann
+#          Tushar Krishna
 
 import m5
 from m5.objects import *
@@ -42,22 +43,21 @@ def define_options(parser):
     return
 
 def create_system(options, full_system, system, dma_ports, ruby_system):
-
+    if buildEnv['PROTOCOL'] != 'Garnet_standalone':
-    if buildEnv['PROTOCOL'] != 'Network_test':
+        panic("This script requires Garnet_standalone protocol to be built.")
-        panic("This script requires the Network_test protocol to be built.")
 
     cpu_sequencers = []
 
     #
-    # The Garnet tester protocol does not support fs nor dma
+    # The Garnet_standalone protocol does not support fs nor dma
     #
     assert(dma_ports == [])
 
     #
     # The ruby network creation expects the list of nodes in the system to be
-    # consistent with the NetDest list.  Therefore the l1 controller nodes must be
+    # consistent with the NetDest list.
-    # listed before the directory nodes and directory nodes before dma nodes, etc.
+    # Therefore the l1 controller nodes must be listed before
-    #
+    # the directory nodes and directory nodes before dma nodes, etc.
     l1_cntrl_nodes = []
     dir_cntrl_nodes = []
 
@@ -84,7 +84,7 @@ def create_system(options, full_system, system, dma_ports, ruby_system):
 
         cpu_seq = RubySequencer(icache = cache,
                                 dcache = cache,
-                                using_network_tester = True,
+                                garnet_standalone = True,
                                 ruby_system = ruby_system)
 
         l1_cntrl.sequencer = cpu_seq

src/mem/protocol/Garnet_standalone-cache.sm

@@ -31,7 +31,7 @@
  */
 
 
-machine(MachineType:L1Cache, "Network_test L1 Cache")
+machine(MachineType:L1Cache, "Garnet_standalone L1 Cache")
     : Sequencer * sequencer;
       Cycles issue_latency := 2;
 
@@ -53,9 +53,9 @@ machine(MachineType:L1Cache, "Network_test L1 Cache")
   // EVENTS
   enumeration(Event, desc="Cache events") {
     // From processor
-    Request,    desc="Request from Network_test";
+    Request,    desc="Request from Garnet_standalone";
-    Forward,    desc="Forward from Network_test";
+    Forward,    desc="Forward from Garnet_standalone";
-    Response,   desc="Response from Network_test";
+    Response,   desc="Response from Garnet_standalone";
   }
 
   // STRUCTURE DEFINITIONS
@@ -74,7 +74,7 @@ machine(MachineType:L1Cache, "Network_test L1 Cache")
   // ReadReq, INST_FETCH, and WriteReq.
   // These are converted to LD, IFETCH and ST by mem/ruby/system/RubyPort.cc.
   // These are then sent to the sequencer, which sends them here.
-  // Network_test-cache.sm tags LD, IFETCH and ST as Request, Forward, 
+  // Garnet_standalone-cache.sm tags LD, IFETCH and ST as Request, Forward,
   // and Response Events respectively, which are then injected into
   // virtual networks 0, 1 and 2 respectively.
   // This models traffic of different types within the network.
@@ -115,11 +115,11 @@ machine(MachineType:L1Cache, "Network_test L1 Cache")
   }
 
   void functionalRead(Addr addr, Packet *pkt) {
-    error("Network test does not support functional read.");
+    error("Garnet_standalone does not support functional read.");
   }
 
   int functionalWrite(Addr addr, Packet *pkt) {
-    error("Network test does not support functional write.");
+    error("Garnet_standalone does not support functional write.");
   }
 
   // NETWORK PORTS
@@ -149,7 +149,11 @@ machine(MachineType:L1Cache, "Network_test L1 Cache")
       out_msg.Type := CoherenceRequestType:MSG;
       out_msg.Requestor := machineID;
       out_msg.Destination.add(map_Address_to_Directory(address));
+
+      // To send broadcasts in vnet0 (to emulate broadcast-based protocols),
+      // replace the above line by the following:
       // out_msg.Destination := broadcast(MachineType:Directory);
+
       out_msg.MessageSize := MessageSizeType:Control;
     }
   }
@@ -190,7 +194,7 @@ machine(MachineType:L1Cache, "Network_test L1 Cache")
   // TRANSITIONS
 
   // sequencer hit call back is performed after injecting the packets.
-  // The goal of the Network_test protocol is only to inject packets into
+  // The goal of the Garnet_standalone protocol is only to inject packets into
   // the network, not to keep track of them via TBEs.
 
   transition(I, Response) {

src/mem/protocol/Garnet_standalone-dir.sm

@@ -31,7 +31,7 @@
  */
 
 
-machine(MachineType:Directory, "Network_test Directory")
+machine(MachineType:Directory, "Garnet_standalone Directory")
     : MessageBuffer * requestToDir, network="From", virtual_network="0",
             vnet_type = "request";
       MessageBuffer * forwardToDir, network="From", virtual_network="1",
@@ -79,11 +79,11 @@ machine(MachineType:Directory, "Network_test Directory")
   }
 
   void functionalRead(Addr addr, Packet *pkt) {
-    error("Network test does not support functional read.");
+    error("Garnet_standalone does not support functional read.");
   }
 
   int functionalWrite(Addr addr, Packet *pkt) {
-    error("Network test does not support functional write.");
+    error("Garnet_standalone does not support functional write.");
   }
 
   // ** IN_PORTS **
@@ -139,7 +139,7 @@ machine(MachineType:Directory, "Network_test Directory")
   // TRANSITIONS
 
   // The directory simply drops the received packets.
-  // The goal of Network_test is only to track network stats.
+  // The goal of Garnet_standalone is only to track network stats.
 
   transition(I, Receive_Request) {
     i_popIncomingRequestQueue;

src/mem/protocol/Garnet_standalone-msg.sm

@@ -42,10 +42,10 @@ structure(RequestMsg, desc="...", interface="Message") {
   MessageSizeType MessageSize, desc="size category of the message";
 
   bool functionalRead(Packet *pkt) {
-    error("Network test does not support functional accesses!");
+    error("Garnet_standalone does not support functional accesses!");
   }
 
   bool functionalWrite(Packet *pkt) {
-    error("Network test does not support functional accesses!");
+    error("Garnet_standalone does not support functional accesses!");
   }
 }

src/mem/protocol/Garnet_standalone.slicc

@@ -0,0 +1,5 @@
+protocol "Garnet_standalone";
+include "RubySlicc_interfaces.slicc";
+include "Garnet_standalone-msg.sm";
+include "Garnet_standalone-cache.sm";
+include "Garnet_standalone-dir.sm";

src/mem/protocol/Network_test.slicc

@@ -1,5 +0,0 @@
-protocol "Network_test";
-include "RubySlicc_interfaces.slicc";
-include "Network_test-msg.sm";
-include "Network_test-cache.sm";
-include "Network_test-dir.sm";

src/mem/protocol/SConsopts

@@ -44,7 +44,7 @@ all_protocols.extend([
     'MOESI_CMP_directory',
     'MOESI_CMP_token',
     'MOESI_hammer',
-    'Network_test',
+    'Garnet_standalone',
     'None'
     ])
 

src/mem/ruby/system/GPUCoalescer.cc

@@ -142,7 +142,7 @@ GPUCoalescer::GPUCoalescer(const Params *p)
 
     m_data_cache_hit_latency = p->dcache_hit_latency;
 
-    m_usingNetworkTester = p->using_network_tester;
+    m_runningGarnetStandalone = p->garnet_standalone;
     assumingRfOCoherence = p->assume_rfo;
 }
 
@@ -516,10 +516,10 @@ GPUCoalescer::writeCallback(Addr address,
     // For Alpha, properly handle LL, SC, and write requests with respect to
     // locked cache blocks.
     //
-    // Not valid for Network_test protocl
+    // Not valid for Garnet_standalone protocl
     //
     bool success = true;
-    if (!m_usingNetworkTester)
+    if (!m_runningGarnetStandalone)
         success = handleLlsc(address, request);
 
     if (request->m_type == RubyRequestType_Locked_RMW_Read) {

src/mem/ruby/system/GPUCoalescer.hh

@@ -291,7 +291,7 @@ class GPUCoalescer : public RubyPort
     int m_load_waiting_on_store_cycles;
     int m_load_waiting_on_load_cycles;
 
-    bool m_usingNetworkTester;
+    bool m_runningGarnetStandalone;
 
     class GPUCoalescerWakeupEvent : public Event
     {

src/mem/ruby/system/Sequencer.cc

@@ -71,7 +71,7 @@ Sequencer::Sequencer(const Params *p)
     assert(m_data_cache_hit_latency > 0);
     assert(m_inst_cache_hit_latency > 0);
 
-    m_usingNetworkTester = p->using_network_tester;
+    m_runningGarnetStandalone = p->garnet_standalone;
 }
 
 Sequencer::~Sequencer()
@@ -386,10 +386,10 @@ Sequencer::writeCallback(Addr address, DataBlock& data,
     // For Alpha, properly handle LL, SC, and write requests with respect to
     // locked cache blocks.
     //
-    // Not valid for Network_test protocl
+    // Not valid for Garnet_standalone protocl
     //
     bool success = true;
-    if (!m_usingNetworkTester)
+    if (!m_runningGarnetStandalone)
         success = handleLlsc(address, request);
 
     // Handle SLICC block_on behavior for Locked_RMW accesses. NOTE: the

src/mem/ruby/system/Sequencer.hh

@@ -201,7 +201,7 @@ class Sequencer : public RubyPort
 
     int m_coreId;
 
-    bool m_usingNetworkTester;
+    bool m_runningGarnetStandalone;
 
     //! Histogram for number of outstanding requests per cycle.
     Stats::Histogram m_outstandReqHist;

src/mem/ruby/system/Sequencer.py

@@ -73,7 +73,7 @@ class RubySequencer(RubyPort):
        "max requests (incl. prefetches) outstanding")
    deadlock_threshold = Param.Cycles(500000,
        "max outstanding cycles for a request before deadlock/livelock declared")
-   using_network_tester = Param.Bool(False, "")
+   garnet_standalone = Param.Bool(False, "")
    # id used by protocols that support multiple sequencers per controller
    # 99 is the dummy default value
    coreid = Param.Int(99, "CorePair core id")