| 1 | // ========== Copyright Header Begin ========================================== |
| 2 | // |
| 3 | // OpenSPARC T2 Processor File: pl_producer.cpp |
| 4 | // Copyright (C) 1995-2007 Sun Microsystems, Inc. All Rights Reserved |
| 5 | // 4150 Network Circle, Santa Clara, California 95054, U.S.A. |
| 6 | // |
| 7 | // * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 8 | // |
| 9 | // This program is free software; you can redistribute it and/or modify |
| 10 | // it under the terms of the GNU General Public License as published by |
| 11 | // the Free Software Foundation; version 2 of the License. |
| 12 | // |
| 13 | // This program is distributed in the hope that it will be useful, |
| 14 | // but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 16 | // GNU General Public License for more details. |
| 17 | // |
| 18 | // You should have received a copy of the GNU General Public License |
| 19 | // along with this program; if not, write to the Free Software |
| 20 | // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 21 | // |
| 22 | // For the avoidance of doubt, and except that if any non-GPL license |
| 23 | // choice is available it will apply instead, Sun elects to use only |
| 24 | // the General Public License version 2 (GPLv2) at this time for any |
| 25 | // software where a choice of GPL license versions is made |
| 26 | // available with the language indicating that GPLv2 or any later version |
| 27 | // may be used, or where a choice of which version of the GPL is applied is |
| 28 | // otherwise unspecified. |
| 29 | // |
| 30 | // Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| 31 | // CA 95054 USA or visit www.sun.com if you need additional information or |
| 32 | // have any questions. |
| 33 | // |
| 34 | // ========== Copyright Header End ============================================ |
| 35 | #ifndef DLL_pl_producer_h |
| 36 | #define DLL_pl_producer_h |
| 37 | |
| 38 | #include "dll_top.hpp" |
| 39 | |
| 40 | namespace pcie { |
| 41 | |
| 42 | /** This function produces DLLPs for PL **/ |
| 43 | void dll_top::pl_dllp_producer() |
| 44 | { |
| 45 | LOG_DEBUG<<"DLL: pl_dllp_producer begins..."; |
| 46 | try{ |
| 47 | RefPciePacket send_packet; |
| 48 | |
| 49 | while(true) |
| 50 | { |
| 51 | if ( !queue_DLLP.empty() && !ltssm_L0s ) |
| 52 | { |
| 53 | //cout << sc_time_stamp() << "---- DLLP Queue Size: " << queue_DLLP.size() << endl; |
| 54 | send_packet = queue_DLLP.front(); |
| 55 | queue_DLLP.pop(); |
| 56 | while(true){ |
| 57 | if((send_packet->get_byte(0)==DLLP_ACK || send_packet->get_byte(0)== DLLP_NAK) && queue_DLLP.size()>=1){ |
| 58 | if((queue_DLLP.front())->get_byte(0)==DLLP_ACK || (queue_DLLP.front())->get_byte(0)== DLLP_NAK){ |
| 59 | //cout << "Aggregating DLLPs..." << endl; |
| 60 | send_packet = queue_DLLP.front(); |
| 61 | queue_DLLP.pop(); |
| 62 | } |
| 63 | else break; |
| 64 | } |
| 65 | else break; |
| 66 | } |
| 67 | LOG_DEBUG << "_DLL_: Sent packet to PL with PktId= " << send_packet->getPacketId() << " Size= " << send_packet->get_size() ; |
| 68 | //cout << sc_time_stamp() << "\t\t\t\t\t| DLL: Sent DLLP " << send_packet->getPacketId() << " to PL." << endl; |
| 69 | dll_pl_dllp_out.send_packet(send_packet); |
| 70 | } |
| 71 | WAIT(eventPlPktRdy); |
| 72 | wait(sc_time(25,SC_NS),reset_ev);//Added |
| 73 | }// while |
| 74 | } |
| 75 | catch(sc_exception &e){ |
| 76 | LOG_DEBUG<<"DLL: Out of pl_dllp_producer"; |
| 77 | } |
| 78 | |
| 79 | |
| 80 | }// pl_producer |
| 81 | |
| 82 | |
| 83 | /** This function produces TLPs for PL **/ |
| 84 | void dll_top::pl_tlp_producer() |
| 85 | { |
| 86 | LOG_DEBUG<<"DLL: pl_tlp_producer begins..."; |
| 87 | try{ |
| 88 | RefPciePacket send_packet; |
| 89 | sc_uint<12> rx_pkt_seq_num; |
| 90 | sc_uint<8> byte_seq_num; |
| 91 | |
| 92 | while(true) |
| 93 | { |
| 94 | if ( !queue_TLP.empty() && !ltssm_L0s && FC_Init_Complete && Flag_FC1 && Flag_FC2) |
| 95 | { |
| 96 | send_packet = queue_TLP.front(); |
| 97 | |
| 98 | sent_first_stp_pkt=true; |
| 99 | queue_TLP.pop(); |
| 100 | LOG_DEBUG << "_DLL_: Sent packet to PL with PktId= " << send_packet->getPacketId() << " Size= " << send_packet->get_size() ; |
| 101 | //cout << sc_time_stamp() << "\t\t\t\t\t| DLL: Sent TLP " << send_packet->getPacketId() << " to PL." << endl; |
| 102 | dll_pl_tlp_out.send_packet(send_packet); |
| 103 | buffer_add(send_packet); |
| 104 | //replay_buffer.push(send_packet); |
| 105 | byte_seq_num= send_packet->get_byte(1); |
| 106 | rx_pkt_seq_num.range(11,8)=byte_seq_num.range(3,0); |
| 107 | byte_seq_num= send_packet->get_byte(2); |
| 108 | rx_pkt_seq_num.range(7,0)=byte_seq_num.range(7,0); |
| 109 | LOG_DEBUG << "REPLAY_BUFFER: Added packet " << rx_pkt_seq_num ; |
| 110 | } |
| 111 | WAIT(eventPlPktRdy|fc_init2_complete_ev); |
| 112 | }// while |
| 113 | } |
| 114 | catch(sc_exception &e){ |
| 115 | LOG_DEBUG<<"DLL: Out of pl_tlp_producer"; |
| 116 | } |
| 117 | }// pl_producer |
| 118 | } |
| 119 | |
| 120 | #endif |