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/*
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* .--------------. .----------------. .------------.
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* | .------------. | .--------------. | .----------. |
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* | | ____ ____ | | | ____ ____ | | | ______ | |
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* | ||_ || _|| | ||_ \ / _|| | | .' ___ || |
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* ___ _ __ ___ _ __ | | | |__| | | | | | \/ | | | |/ .' \_|| |
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* / _ \| '_ \ / _ \ '_ \ | | | __ | | | | | |\ /| | | | || | | |
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* (_) | |_) | __/ | | || | _| | | |_ | | | _| |_\/_| |_ | | |\ `.___.'\| |
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* \___/| .__/ \___|_| |_|| ||____||____|| | ||_____||_____|| | | `._____.'| |
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* | | | | | | | | | | | |
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* |_| | '------------' | '--------------' | '----------' |
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* '--------------' '----------------' '------------'
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*
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* openHMC - An Open Source Hybrid Memory Cube Controller
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* (C) Copyright 2014 Computer Architecture Group - University of Heidelberg
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* www.ziti.uni-heidelberg.de
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* B6, 26
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* 68159 Mannheim
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* Germany
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*
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* Contact: openhmc@ziti.uni-heidelberg.de
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* http://ra.ziti.uni-heidelberg.de/openhmc
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*
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* This source file is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This source file is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this source file. If not, see .
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*
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*
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*/
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`ifndef HMC_LINK_CONFIG_SV
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`define HMC_LINK_CONFIG_SV
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class hmc_link_config extends uvm_object;
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//--
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//-- variables
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//--
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rand int hmc_tokens;
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rand int rx_tokens;
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rand bit [2:0] cube_id;
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rand bit cfg_tx_lane_reverse;
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rand bit [15:0] cfg_hsstx_inv;
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rand bit cfg_scram_enb;
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rand bit [15:0] cfg_tx_lane_delay[16] = '{16{4'h0}};
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rand bit [ 3:0] cfg_retry_limit = 3; //-- LINKRETRY - infinite retry when cfg_retry_limit[3] == 1
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rand bit [ 2:0] cfg_retry_timeout = 5;
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rand bit cfg_check_pkt = 1; //-- check for valid packet
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bit cfg_lane_auto_correct = 1;
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bit cfg_rsp_open_loop = 0;
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int cfg_rx_clk_ratio = 40;
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bit cfg_half_link_mode_rx = (2**`LOG_NUM_LANES==8);
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bit [7:0] cfg_tx_rl_lim = 85;
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int cfg_tx_clk_ratio = 40;
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bit cfg_half_link_mode_tx = (2**`LOG_NUM_LANES==8);
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bit [7:0] cfg_init_retry_rxcnt = 16;
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bit [7:0] cfg_init_retry_txcnt = 6; //-- Actual value in BFM is 4times this value
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realtime cfg_tsref = 1us;
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realtime cfg_top = 1us;
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bit cfg_retry_enb = 1;
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//-- error injection is defined in 0.1% granularity
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rand int unsigned cfg_rsp_dln, cfg_rsp_lng, cfg_rsp_crc, cfg_rsp_seq,
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cfg_rsp_dinv, cfg_rsp_errstat, cfg_rsp_err, cfg_rsp_poison,
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cfg_req_dln, cfg_req_lng, cfg_req_crc, cfg_req_seq;
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//--
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//-- constrains
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//--
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constraint hmc_tokens_c {
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hmc_tokens >= 25;
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soft hmc_tokens dist{[25:30]:/5, [31:100]:/15, [101:1023]:/80};
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}
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constraint cfg_hsstx_inv_c {
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cfg_hsstx_inv >= 0;
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}
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constraint rx_tokens_c {
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rx_tokens >= 9;
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soft rx_tokens dist{[9:30]:/5, [31:100]:/15, [101:1023]:/80};
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}
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constraint cube_id_c {
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cube_id >= 0;
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soft cube_id == 0;
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}
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constraint lane_delay_c{
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foreach (cfg_tx_lane_delay[i]) {
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cfg_tx_lane_delay[i] >= 0;
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cfg_tx_lane_delay[i] <= 8;
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}
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}
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constraint retry_timeout_c {
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cfg_retry_timeout == 7;
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}
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constraint error_rates_c {
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soft cfg_rsp_dln == 5;
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soft cfg_rsp_lng == 5;
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soft cfg_rsp_crc == 5;
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soft cfg_rsp_seq == 5;
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soft cfg_rsp_poison == 5;
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soft cfg_req_dln == 5;
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soft cfg_req_lng == 5;
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soft cfg_req_crc == 5;
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soft cfg_req_seq == 0; // Must be zero for BFM 28965 !
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(
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cfg_rsp_dln ||
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cfg_rsp_lng ||
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cfg_rsp_crc ||
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cfg_rsp_seq ||
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cfg_rsp_dinv ||
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cfg_rsp_errstat ||
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cfg_rsp_err ||
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cfg_rsp_poison ||
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cfg_req_dln ||
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cfg_req_lng ||
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cfg_req_crc ||
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cfg_req_seq
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) -> {
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cfg_check_pkt == 0; //-- disable packet checking
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cfg_retry_limit[3] == 1; //-- enable infinite retry
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}
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}
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`uvm_object_utils_begin(hmc_link_config)
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`uvm_field_int(hmc_tokens, UVM_DEFAULT)
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`uvm_field_int(rx_tokens, UVM_DEFAULT)
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`uvm_object_utils_end
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function new(string name = "hmc_link_config");
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super.new(name);
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endfunction : new
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virtual function void do_print (uvm_printer printer);
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super.do_print(printer);
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endfunction : do_print
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endclass : hmc_link_config
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`endif // AXI4_STREAM_CONFIG_SV
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