Port: Extend the QueuedPort interface and use where appropriate

This patch extends the queued port interfaces with methods for
scheduling the transmission of a timing request/response. The methods
are named similar to the corresponding sendTiming(Snoop)Req/Resp,
replacing the "send" with "sched". As the queues are currently
unbounded, the methods always succeed and hence do not return a value.

This functionality was previously provided in the subclasses by
calling PacketQueue::schedSendTiming with the appropriate
parameters. With this change, there is no need to introduce these
extra methods in the subclasses, and the use of the queued interface
is more uniform and explicit.

1 files changed, 6 insertions, 19 deletions

diff --git a/src/mem/ruby/system/RubyPort.cc b/src/mem/ruby/system/RubyPort.cc
index c829bf66e..c8580bb5c 100644
--- a/src/mem/ruby/system/RubyPort.cc
+++ b/src/mem/ruby/system/RubyPort.cc
@@ -196,7 +196,10 @@ RubyPort::M5Port::recvTimingReq(PacketPtr pkt)
                 "Request for address 0x%#x is assumed to be a pio request\n",
                 pkt->getAddr());
 
-        return ruby_port->pio_port.sendNextCycle(pkt);
+        // send next cycle
+        ruby_port->pio_port.schedTimingReq(pkt, curTick() +
+                                           g_eventQueue_ptr->getClock());
+        return true;
     }
 
     assert(Address(pkt->getAddr()).getOffset() + pkt->getSize() <=
@@ -647,30 +650,14 @@ RubyPort::M5Port::hitCallback(PacketPtr pkt)
     // turn packet around to go back to requester if response expected
     if (needsResponse) {
         DPRINTF(RubyPort, "Sending packet back over port\n");
-        sendNextCycle(pkt);
+        // send next cycle
+        schedTimingResp(pkt, curTick() + g_eventQueue_ptr->getClock());
     } else {
         delete pkt;
     }
     DPRINTF(RubyPort, "Hit callback done!\n");
 }
 
-bool
-RubyPort::M5Port::sendNextCycle(PacketPtr pkt, bool send_as_snoop)
-{
-    //minimum latency, must be > 0
-    queue.schedSendTiming(pkt, curTick() + (1 * g_eventQueue_ptr->getClock()),
-                          send_as_snoop);
-    return true;
-}
-
-bool
-RubyPort::PioPort::sendNextCycle(PacketPtr pkt)
-{
-    //minimum latency, must be > 0
-    queue.schedSendTiming(pkt, curTick() + (1 * g_eventQueue_ptr->getClock()));
-    return true;
-}
-
 AddrRangeList
 RubyPort::M5Port::getAddrRanges() const
 {