| 1 | // ========== Copyright Header Begin ========================================== |
| 2 | // |
| 3 | // OpenSPARC T2 Processor File: pcg_pack_gen.vr |
| 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 | #define PG_WAIT_TO 6000 // Number of cycles to wait for time out |
| 36 | |
| 37 | task pkt_gen( flow_desc flow, integer data_length, integer ttl, var integer token, |
| 38 | bit[63:0] options=0) { |
| 39 | |
| 40 | integer time_out = 0; |
| 41 | |
| 42 | integer current_flow_num; |
| 43 | integer flow_id; |
| 44 | |
| 45 | |
| 46 | current_flow_num = flow.flow_no; |
| 47 | |
| 48 | if(my_port > 4 ) { |
| 49 | printf("WARNING: PG: Port %0d is invalid (only used to satisfy fflp testsuite).\n",my_port); |
| 50 | printf(" No action is taken.\n"); |
| 51 | return; |
| 52 | } |
| 53 | |
| 54 | pckt_num++; |
| 55 | |
| 56 | if (flow.fl_state.tcp_flags == 6'h02) |
| 57 | new_flow++; |
| 58 | |
| 59 | |
| 60 | case({ check_option(options, O_ORDER_START), |
| 61 | check_option(options, O_ORDER_CONT), |
| 62 | check_option(options, O_ORDER_END) }) { |
| 63 | 3'b100: order_seq = 0; |
| 64 | 3'b010: order_seq++; |
| 65 | 3'b001: order_seq++; |
| 66 | } |
| 67 | |
| 68 | if(flow.src_node.src_port[my_port] != 1) { |
| 69 | print_warn(); |
| 70 | printf("PG: Specified src_node may not be used as source for this port. Continuing anyway ...\n"); |
| 71 | } |
| 72 | |
| 73 | |
| 74 | |
| 75 | token = pack_db_add_entry( my_port, flow, flow.frame, flow.src_node, flow.dst_node, flow.tup, flow.rx_param, flow.tx_param, flow.fl_state, data_length,ttl, options, order_seq, |
| 76 | pckt_num, ifedx_control); |
| 77 | |
| 78 | pack_db[token].port_type = port_type; |
| 79 | |
| 80 | |
| 81 | if( pack_db[token].fl_state.tcp_flags == 2'h02 ) { |
| 82 | |
| 83 | flow_db_add_entry( my_port, data_length, flow, flow.tup, flow.rx_param, flow.tx_param, flow.fl_state, options, current_flow_num ); |
| 84 | |
| 85 | } |
| 86 | |
| 87 | /*********************************** |
| 88 | // If port 19 specify HTP descriptor control bits |
| 89 | if (pack_db[token].org_port== 8) { |
| 90 | pack_db[token].htp.forward_dec = htp_forward_dec; |
| 91 | pack_db[token].htp.priority = htp_priority; |
| 92 | pack_db[token].htp.dont_tag = htp_dont_tag; |
| 93 | pack_db[token].htp.no_crc_ins = htp_no_crc_ins; |
| 94 | pack_db[token].htp.ortagin = htp_ortagin; |
| 95 | } |
| 96 | *****************************************/ |
| 97 | |
| 98 | if(debug_db_in) display_db(token); |
| 99 | wait_send_fake=0; |
| 100 | |
| 101 | mailbox_put(mb_q, token); |
| 102 | |
| 103 | printf("Waiting for packet to go out ...(port type: %h), token# %0d\n",port_type, token); |
| 104 | //printf("options fake out: %d\n",check_option( pack_db[token].options, O_FAKE_OUT) ); |
| 105 | |
| 106 | if( check_option( pack_db[token].options, O_WAIT_SEND_FAKE) ) { |
| 107 | while(wait_send_fake==0) @(posedge CLOCK); |
| 108 | } |
| 109 | |
| 110 | |
| 111 | |
| 112 | if( check_option( pack_db[token].options, O_WAIT_SEND) ) { |
| 113 | |
| 114 | fork |
| 115 | while(time_out<PG_WAIT_TO) { |
| 116 | wait_rx_clk(1); |
| 117 | time_out++; |
| 118 | } |
| 119 | |
| 120 | while(pack_db[token].pg_done!=1) @(posedge CLOCK); |
| 121 | join any |
| 122 | |
| 123 | terminate; |
| 124 | |
| 125 | |
| 126 | if(pack_db[token].pg_done!=1) { |
| 127 | pack_db[token].pg_done=1; |
| 128 | print_warn(); |
| 129 | printf("PG: Timed out waiting for done bit (waited %0d cycles)...\n",time_out); |
| 130 | printf(" This only happens with fake ports when we wait for someone\n"); |
| 131 | printf(" to acknowladge that the packet was processed (Port: %0d).\n",my_port); |
| 132 | printf(" Token: %0d, Time: %0d\n",token,{get_time(HI),get_time(LO)}); |
| 133 | } |
| 134 | |
| 135 | } |
| 136 | |
| 137 | |
| 138 | |
| 139 | //printf("Packet went out ...\n"); |
| 140 | } |
| 141 | |
| 142 | task pkt_auto_tx() { |
| 143 | integer len; // buffer length |
| 144 | byte_array buf; // Frame buffer |
| 145 | integer token; // Read from the queue |
| 146 | |
| 147 | buf = new; // Allocate new buffer |
| 148 | |
| 149 | |
| 150 | while(1) { |
| 151 | mailbox_get(WAIT, mb_q, token); |
| 152 | if(debug_db_out) display_db(token); |
| 153 | |
| 154 | gen_buf( token, buf, len ); |
| 155 | if(debug_fa) display_buf( buf, len, INTER_FEDX ); |
| 156 | wait_send_fake=1; |
| 157 | |
| 158 | if( !check_option( pack_db[token].options, O_NO_OUT_TOKEN) ) { |
| 159 | if(debug_out_token) |
| 160 | printf("INFO: PG[%0d]: Sending token (%0d) to outgoing mailbox. (Time: %d)\n", |
| 161 | my_port, token, {get_time(HI),get_time(LO)} ); |
| 162 | mailbox_put(mbox_id.pg_mb[my_port], token); |
| 163 | } |
| 164 | |
| 165 | printf("pg[%0d]: Transmitting packet ...\n",my_port); |
| 166 | printf("options fake out: %d\n",check_option( pack_db[token].options, O_FAKE_OUT) ); |
| 167 | if( !(check_option( pack_db[token].options, O_FAKE_OUT )) & !port_type[2] ) { |
| 168 | //printf("pg[%0d]: Setting done bit ...\n",my_port); |
| 169 | //if(verbose_on) |
| 170 | printf("INFO: PG[%0d]: Sending out packet token:%0d at time %0d \n",my_port, token, |
| 171 | {get_time(HI),get_time(LO)}); |
| 172 | send_packet(port_type, buf, len, pack_db[token].options); |
| 173 | |
| 174 | |
| 175 | pack_db[token].pg_done = 1; |
| 176 | //if(verbose_on) |
| 177 | printf("INFO: PG[%0d]: Packet token %0d sent done at time=%0d \n",my_port, token, |
| 178 | {get_time(HI),get_time(LO)}); |
| 179 | } |
| 180 | printf("pg[%0d]: Done Transmitting packet ...\n",my_port); |
| 181 | } |
| 182 | } |
| 183 | |
| 184 | |
| 185 | |