garnet: separate data and ctrl VCs

Separate data VCs and ctrl VCs in garnet, as ctrl VCs have 1 buffer per VC,
while data VCs have > 1 buffers per VC. This is for correct power estimations.

1 files changed, 7 insertions, 0 deletions

diff --git a/src/mem/ruby/network/garnet/fixed-pipeline/NetworkInterface_d.cc b/src/mem/ruby/network/garnet/fixed-pipeline/NetworkInterface_d.cc
index 45270ad7a..8299a294f 100644
--- a/src/mem/ruby/network/garnet/fixed-pipeline/NetworkInterface_d.cc
+++ b/src/mem/ruby/network/garnet/fixed-pipeline/NetworkInterface_d.cc
@@ -163,6 +163,13 @@ NetworkInterface_d::flitisizeMessage(MsgPtr msg_ptr, int vnet)
             // flitisized and an output vc is acquired
             net_msg_ptr->getInternalDestination().removeNetDest(personal_dest);
         }
+        if (num_flits > 1) { // data packet
+            // defining ctrl vnet to be 1-flit packets
+            // and data vnet to be > 1 flit packets
+            m_net_ptr->set_vnet_type(vc, DATA_VNET_);
+            m_out_vc_state[vc]->set_credit_count();
+        }
+
         for (int i = 0; i < num_flits; i++) {
             m_net_ptr->increment_injected_flits();
             flit_d *fl = new flit_d(i, vc, vnet, num_flits, new_msg_ptr);