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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 |