network/garnet2.0/SwitchAllocator.cc

77             m_port_requests[i][j] = false; // [outport][inport]
116     for (int inport = 0; inport < m_num_inports; inport++) {
117         int invc = m_round_robin_invc[inport];
121             if (m_input_unit[inport]->need_stage(invc, SA_,
126                 int  outport = m_input_unit[inport]->get_outport(invc);
127                 int  outvc   = m_input_unit[inport]->get_outvc(invc);
132                     send_allowed(inport, invc, outport, outvc);
136                     m_port_requests[outport][inport] = true;
137                     m_vc_winners[outport][inport]= invc;
140                     m_round_robin_invc[inport] = invc + 1;
141                     if (m_round_robin_invc[inport] >= m_num_vcs)
142                         m_round_robin_invc[inport] = 0;
176         int inport = m_round_robin_inport[outport];
181             // inport has a request this cycle for outport
182             if (m_port_requests[outport][inport]) {
184                 // grant this outport to this inport
185                 int invc = m_vc_winners[outport][inport];
187                 int outvc = m_input_unit[inport]->get_outvc(invc);
190                     outvc = vc_allocate(outport, inport, invc);
194                 flit *t_flit = m_input_unit[inport]->getTopFlit(invc);
198                                      "to invc %d at inport %d to flit %s at "
205                             m_input_unit[inport]->get_direction()),
226                 m_router->grant_switch(inport, t_flit);
233                     assert(!(m_input_unit[inport]->isReady(invc,
237                     m_input_unit[inport]->set_vc_idle(invc,
242                     m_input_unit[inport]->increment_credit(invc, true,
247                     m_input_unit[inport]->increment_credit(invc, false,
252                 m_port_requests[outport][inport] = false;
255                 m_round_robin_inport[outport] = inport + 1;
262             inport++;
263             if (inport >= m_num_inports)
264                 inport = 0;
284 SwitchAllocator::send_allowed(int inport, int invc, int outport, int outvc)
320         Cycles t_enqueue_time = m_input_unit[inport]->get_enqueue_time(invc);
327             if (m_input_unit[inport]->need_stage(temp_vc, SA_,
329                (m_input_unit[inport]->get_outport(temp_vc) == outport) &&
330                (m_input_unit[inport]->get_enqueue_time(temp_vc) <
342 SwitchAllocator::vc_allocate(int outport, int inport, int invc)
349     m_input_unit[inport]->grant_outvc(invc, outvc);