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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 BFM_2_HMC
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`define BFM_2_HMC
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class bfm_2_hmc_mon extends hmc_module_mon;
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typedef enum {
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LENGTH_ERROR,
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CRC_ERROR,
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SEQ_ERROR,
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POISON
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}error_class_e;
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mailbox#(cls_pkt) in_mb;
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cls_pkt pkt;
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bit [2:0] seq_number = 0;
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bit bitstream[];
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int phit_size = 64;
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bit [64:0] header; //-- phit size
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bit [64:0] tail ; //-- phit size
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int data_phit_count;
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int flit_size = 128;
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bit error_abort_mode = 0;
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int irtry_cnt = 0;
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int irtry = 0;
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hmc_link_config link_cfg;
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error_class_e current_error;
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hmc_command_encoding current_command;
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int lng_error = 0;
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int crc_error = 0;
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int seq_error = 0;
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int poisoned_pkt =0;
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int rsp_rcvd = 0;
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int err_rsp_rcvd = 0;
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int req_rcvd = 0;
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hmc_link_config hmc_link_cfg;
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`uvm_component_utils_begin(bfm_2_hmc_mon)
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`uvm_field_object(link_cfg, UVM_DEFAULT)
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`uvm_component_utils_end
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covergroup hmc_pkt_error_cg;
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option.per_instance = 1;
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ERROR_TYPE: coverpoint current_error;
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HMC_COMMAND: coverpoint current_command {
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//bins request_commands[] =
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bins flow_types[] = {
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HMC_TRET,
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HMC_PRET,
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HMC_NULL
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};
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bins requests[] = {
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HMC_WRITE_16,
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HMC_WRITE_32,
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HMC_WRITE_48,
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HMC_WRITE_64,
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HMC_WRITE_80,
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HMC_WRITE_96,
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HMC_WRITE_112,
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HMC_WRITE_128,
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HMC_MODE_WRITE,
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HMC_BIT_WRITE,
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HMC_DUAL_8B_ADDI,
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HMC_SINGLE_16B_ADDI,
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HMC_POSTED_WRITE_16,
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HMC_POSTED_WRITE_32,
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HMC_POSTED_WRITE_48,
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HMC_POSTED_WRITE_64,
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HMC_POSTED_WRITE_80,
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HMC_POSTED_WRITE_96,
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HMC_POSTED_WRITE_112,
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HMC_POSTED_WRITE_128,
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HMC_POSTED_BIT_WRIT,
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HMC_POSTED_BIT_WRIT,
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HMC_POSTED_DUAL_8B_ADDI,
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HMC_POSTED_SINGLE_16B_ADDI,
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HMC_MODE_READ,
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HMC_READ_16,
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HMC_READ_32,
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HMC_READ_48,
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HMC_READ_64,
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HMC_READ_80,
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HMC_READ_96,
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HMC_READ_112,
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HMC_READ_128};
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bins response[] = {
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HMC_READ_RESPONSE,
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HMC_WRITE_RESPONSE,
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HMC_MODE_READ_RESPONSE,
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HMC_MODE_WRITE_RESPONSE,
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HMC_ERROR_RESPONSE
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};
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illegal_bins n_used = default;
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}
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CROSS_ERROR_TYPPE_COMMAND : cross ERROR_TYPE, HMC_COMMAND;
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endgroup
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function new ( string name="bfm_2_hmc_mon", uvm_component parent );
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super.new(name, parent);
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hmc_pkt_cg = new();
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hmc_pkt_error_cg = new();
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endfunction : new
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function void build_phase(uvm_phase phase);
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super.build_phase(phase);
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if (!uvm_config_db#(hmc_link_config)::get(this, "", "link_cfg", link_cfg)) begin
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uvm_report_fatal(get_type_name(), $psprintf("hmc_link_config not set via config_db"));
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end
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endfunction : build_phase
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task run();
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cls_pkt old_pkt;
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`uvm_info(get_type_name(),$psprintf("starting BFM_2_HMC converter"), UVM_MEDIUM)
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forever begin
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//mb_pkt.get(pkt);
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old_pkt = pkt;
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in_mb.peek(pkt);
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if (pkt != old_pkt)
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extract_hmc_pkt(pkt);
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else
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#5;
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end
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endtask
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task extract_hmc_pkt(cls_pkt pkt);
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header = pkt.get_header();
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tail = pkt.get_tail();
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data_phit_count = pkt.data.size(); //-- 7 flits->14 phits --> 14-2 =12 data_phits
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bitstream = new [2*phit_size + data_phit_count*phit_size];
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//-- generate Bitstream
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if (header !=64'b0) begin
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//-- check length
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if( (header[10:7] != header[14:11]) || (header[10:7] != 1+data_phit_count /2)) begin
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lng_error ++;
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error_abort_mode = 1;
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`uvm_info(get_type_name(),$psprintf("Set error abort mode: LNG/DLN ERROR, Command with header: %h", header), UVM_NONE)
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irtry_cnt = 0;
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current_error = LENGTH_ERROR;
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current_command[5:0] = header[5:0];
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hmc_pkt_error_cg.sample();
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end else begin
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//-- convert the cls_pkt pkt to hmc_packet packet
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cls_pkt_to_hmc_packet(pkt);
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//-- check crc error
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check_crc_error(packet);
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//-- wait for irtry
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if (error_abort_mode)
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clear_error_abort_mode();
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else begin
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//-- count Start Error Mode IRTRY
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if (packet.start_retry) begin
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irtry++;
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`uvm_info(get_type_name(),$psprintf("Start Retry: %0d", irtry), UVM_HIGH)
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end
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//-- packet sequence check
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if ((packet.command == HMC_TRET) || (packet.get_command_type() != HMC_FLOW_TYPE)) begin
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irtry = 0; //-- reset start retry mode counter
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if (packet.sequence_number != seq_number+1'b1) begin
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seq_error ++;
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error_abort_mode = 1;
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`uvm_info(get_type_name(),$psprintf("Set error abort mode: SEQ ERROR, Command: %s", packet.command.name()), UVM_NONE)
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irtry_cnt = 0;
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//-- sample seq error
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current_error = SEQ_ERROR;
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current_command = packet.command;
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hmc_pkt_error_cg.sample();
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end else begin
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seq_number = packet.sequence_number;
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//-- check if poisoned
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if ( packet.poisoned) begin
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poisoned_pkt++;
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//-- sample poison
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current_error = POISON;
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current_command = packet.command;
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hmc_pkt_error_cg.sample();
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end else
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if((packet.get_command_type() != HMC_FLOW_TYPE))
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write_packet(packet);
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end
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end
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end
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end
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end
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endtask : extract_hmc_pkt
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function void check_crc_error(hmc_packet packet);
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if (packet.crc_error) begin
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crc_error++;
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error_abort_mode = 1;
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`uvm_info(get_type_name(),$psprintf("Set error abort mode: CRC ERROR, Command: %s", packet.command.name()), UVM_NONE)
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irtry_cnt = 0;
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current_error = CRC_ERROR;
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current_command = packet.command;
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hmc_pkt_error_cg.sample();
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end
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endfunction : check_crc_error
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function void clear_error_abort_mode();
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if ((packet.clear_error_abort)) begin
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`uvm_info(get_type_name(), $psprintf("Clear Error Abort Mode: %0d",irtry_cnt ), UVM_HIGH)
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irtry_cnt ++;
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end else begin
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irtry_cnt = 0; //-- reset counter
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end
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if (irtry_cnt >= link_cfg.cfg_init_retry_rxcnt) begin //-- test threshold
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error_abort_mode = 0;
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`uvm_info(get_type_name(), $psprintf("Clear Error Abort Mode" ), UVM_NONE)
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end
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endfunction : clear_error_abort_mode
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function void cls_pkt_to_hmc_packet (cls_pkt pkt);
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//-- Convert the CLS_PKT to HMC_PKT
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for (int b = 0; b < 64; b++) begin //-- read header to bitmap
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bitstream[b]=header[b];
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end
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if (data_phit_count > 0)
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for (int phit = 0; phit < data_phit_count; phit++) //-- read data to bitmap
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for (int b = 0; b < phit_size; b++)
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bitstream[(phit + 1) * phit_size + b] = pkt.data[phit][b];
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for (int b = 0; b < 64; b++) begin //-- read tail to bitmap
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bitstream[(data_phit_count+1)*phit_size+b]=tail[b];
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end
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| 310 |
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//-- create hmc packet
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`uvm_info(get_type_name(),$psprintf("Got a BFM Packet: %s",pkt.convert2string()), UVM_HIGH)
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packet = hmc_packet::type_id::create("packet", this);
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void'(packet.unpack(bitstream));
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endfunction : cls_pkt_to_hmc_packet
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| 318 |
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task write_packet(hmc_packet packet);
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| 320 |
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if(packet.get_command_type() == HMC_RESPONSE_TYPE)begin
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| 321 |
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if(packet.command != HMC_ERROR_RESPONSE) begin
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`uvm_info(get_type_name(),$psprintf("Rsp #%0d : %s",rsp_rcvd, packet.command.name()), UVM_HIGH)
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`uvm_info(get_type_name(),$psprintf("Rsp #%0d : %s",rsp_rcvd, packet.sprint()), UVM_HIGH)
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rsp_rcvd++;
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end else begin
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| 326 |
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`uvm_info(get_type_name(),$psprintf("Err Rsp %0d : %s with error code %b",err_rsp_rcvd, packet.command.name(), packet.error_status), UVM_HIGH)
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err_rsp_rcvd++;
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end
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end else begin
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`uvm_info(get_type_name(),$psprintf("Req %0d : %s",req_rcvd, packet.command.name()), UVM_HIGH)
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req_rcvd++;
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end
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hmc_pkt_cg.sample();
|
| 336 |
|
|
|
| 337 |
|
|
item_collected_port.write(packet);
|
| 338 |
|
|
|
| 339 |
|
|
endtask : write_packet
|
| 340 |
|
|
|
| 341 |
|
|
|
| 342 |
|
|
function void report_phase(uvm_phase phase);
|
| 343 |
|
|
`uvm_info(get_type_name(),$psprintf("LNG error count %0d", lng_error), UVM_NONE)
|
| 344 |
|
|
`uvm_info(get_type_name(),$psprintf("CRC error count %0d", crc_error), UVM_NONE)
|
| 345 |
|
|
`uvm_info(get_type_name(),$psprintf("SEQ error count %0d", seq_error), UVM_NONE)
|
| 346 |
|
|
`uvm_info(get_type_name(),$psprintf("poisoned packets %0d", poisoned_pkt), UVM_NONE)
|
| 347 |
|
|
endfunction : report_phase
|
| 348 |
|
|
|
| 349 |
|
|
endclass
|
| 350 |
|
|
|
| 351 |
|
|
|
| 352 |
|
|
`endif
|
