diff options
Diffstat (limited to 'src/mem/bridge.hh')
| -rw-r--r-- | src/mem/bridge.hh | 16 |
1 files changed, 11 insertions, 5 deletions
diff --git a/src/mem/bridge.hh b/src/mem/bridge.hh index d1154eda0..1fa9cdffc 100644 --- a/src/mem/bridge.hh +++ b/src/mem/bridge.hh @@ -79,13 +79,16 @@ class Bridge : public MemObject bool partialWriteFixed; PacketPtr oldPkt; + bool nacked; - PacketBuffer(PacketPtr _pkt, Tick t) + PacketBuffer(PacketPtr _pkt, Tick t, bool nack = false) : ready(t), pkt(_pkt), origSenderState(_pkt->senderState), origSrc(_pkt->getSrc()), - expectResponse(_pkt->needsResponse()), partialWriteFixed(false) + expectResponse(_pkt->needsResponse() && !nack), + partialWriteFixed(false), nacked(nack) + { - if (!pkt->isResponse()) + if (!pkt->isResponse() && !nack) pkt->senderState = this; } @@ -144,6 +147,7 @@ class Bridge : public MemObject std::list<PacketBuffer*> sendQueue; int outstandingResponses; + int queuedRequests; /** Max queue size for outbound packets */ int queueLimit; @@ -151,12 +155,14 @@ class Bridge : public MemObject /** * Is this side blocked from accepting outbound packets? */ - bool queueFull() { return (sendQueue.size() == queueLimit); } + bool queueFull(); - bool queueForSendTiming(PacketPtr pkt); + void queueForSendTiming(PacketPtr pkt); void finishSend(PacketBuffer *buf); + void nackRequest(PacketPtr pkt); + /** * Handle send event, scheduled when the packet at the head of * the outbound queue is ready to transmit (for timing |