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//////////////////////////////////////////////////////////////////////
////                                                              ////
////  File name "sc_testcases.cpp"                                ////
////                                                              ////
////  This file is part of the "10GE MAC" project                 ////
////  http://www.opencores.org/cores/xge_mac/                     ////
////                                                              ////
////  Author(s):                                                  ////
////      - A. Tanguay (antanguay@opencores.org)                  ////
////                                                              ////
//////////////////////////////////////////////////////////////////////
////                                                              ////
//// Copyright (C) 2008 AUTHORS. All rights reserved.             ////
////                                                              ////
//// This source file may be used and distributed without         ////
//// restriction provided that this copyright statement is not    ////
//// removed from the file and that any derivative work contains  ////
//// the original copyright notice and the associated disclaimer. ////
////                                                              ////
//// This source file is free software; you can redistribute it   ////
//// and/or modify it under the terms of the GNU Lesser General   ////
//// Public License as published by the Free Software Foundation; ////
//// either version 2.1 of the License, or (at your option) any   ////
//// later version.                                               ////
////                                                              ////
//// This source is distributed in the hope that it will be       ////
//// useful, but WITHOUT ANY WARRANTY; without even the implied   ////
//// warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR      ////
//// PURPOSE.  See the GNU Lesser General Public License for more ////
//// details.                                                     ////
////                                                              ////
//// You should have received a copy of the GNU Lesser General    ////
//// Public License along with this source; if not, download it   ////
//// from http://www.opencores.org/lgpl.shtml                     ////
////                                                              ////
//////////////////////////////////////////////////////////////////////
 
#include "sc_testcases.h"
 
 
void testcases::connect_testbench(testbench* tbptr) {
    tb = tbptr;
}
 
void testcases::run_tests(void) {
 
    //---
    // Init
 
    tb->pkt_if0.init();
    tb->xgm_if0.init();
    tb->cpu_if0.init();
    tb->pif_gen0.init();
    tb->xgm_gen0.init();
    tb->sb.init();
 
    wait(300, SC_NS);
 
    tb->cpu_if0.enable_all_interrupts();
 
 
 
 
//    done = true;
//    return;
    //---
    // Testcases
 
    test_packet_size(50, 90, 50);
    test_packet_size(9000, 9020, 20);
 
    test_deficit_idle_count();
 
    test_crc_errors(50, 90, 300, 2);
    test_crc_errors(9000, 9020, 20, 1);
 
    test_txdfifo_ovflow();
    test_rxdfifo_ovflow();
 
    test_rx_fragments(55, 90, 300, 2);
    test_rx_coding_err(400, 4);
 
    test_rx_local_fault(55, 90, 600, 15);
    test_rx_remote_fault(55, 90, 600, 15);
 
    test_rx_pause(64, 70, 600, 5);
 
    test_interrupt_mask();
 
    done = true;
 
}
 
 
void testcases::test_deficit_idle_count(void) {
 
    int range;
    int size;
 
    cout << "-----------------------" << endl;
    cout << "Deficit IDLE count" << endl;
    cout << "-----------------------" << endl;
 
    for (range = 0; range < 8; range++) {
        for (size = 60; size < 68; size++) {
            packet_dic(size, size + range);
        }
    }
 
}
 
 
void testcases::packet_dic(int minsize, int maxsize) {
 
    sbStats_t* pif_stats;
    sbStats_t* xgm_stats;
 
    int cnt = 6;
    float delta;
    float cycletime = 6.4;
    float rate;
 
    //---
    // Setup parameters
 
    tb->sb.clear_stats();
 
    tb->pif_gen0.set_pkt_size(minsize, maxsize);
    tb->xgm_gen0.set_pkt_size(minsize, maxsize);
 
    //---
    // Enable traffic
 
    tb->pif_gen0.set_tx_bucket(cnt);
    tb->xgm_gen0.set_tx_bucket(cnt);
 
    //---
    // Wait for test to complete
 
    while (tb->pif_gen0.get_tx_bucket() != 0) {
        wait(10, SC_NS);
    }
 
    //---
    // Check traffic
 
    wait(1000, SC_NS);
 
    pif_stats = tb->sb.get_pif_stats();
    xgm_stats = tb->sb.get_xgm_stats();
 
    if (pif_stats->rx_pkt_cnt != cnt || xgm_stats->rx_pkt_cnt != cnt) {
        cout << "ERROR: Not all packets received." << endl;
        sc_stop();
    }
 
}
 
 
void testcases::test_packet_size(int min, int max, int cnt) {
 
    sbStats_t* pif_stats;
    sbStats_t* xgm_stats;
 
    cout << "-----------------------" << endl;
    cout << "Packet size" << endl;
    cout << "-----------------------" << endl;
 
    //---
    // Setup parameters
 
    tb->sb.clear_stats();
 
    tb->pif_gen0.set_pkt_size(min, max);
    tb->xgm_gen0.set_pkt_size(min, max);
 
    //---
    // Enable traffic
 
    tb->pif_gen0.set_tx_bucket(cnt);
    tb->xgm_gen0.set_tx_bucket(cnt);
 
    //---
    // Wait for test to complete
 
    while (tb->pif_gen0.get_tx_bucket() != 0) {
        wait(10, SC_NS);
    }
 
    //---
    // Check traffic
 
    wait(30000, SC_NS);
 
    pif_stats = tb->sb.get_pif_stats();
    xgm_stats = tb->sb.get_xgm_stats();
 
    if (pif_stats->rx_pkt_cnt != cnt) {
        cout << "ERROR: Not all packets received by PIF." << endl;
        cout << pif_stats->rx_pkt_cnt << " " << cnt << endl;
        sc_stop();
    }
 
    if (xgm_stats->rx_pkt_cnt != cnt) {
        cout << "ERROR: Not all packets received by XGM." << endl;
        cout << xgm_stats->rx_pkt_cnt << " " << cnt << endl;
        sc_stop();
    }
}
 
void testcases::test_crc_errors(int min, int max, int cnt, int interval) {
 
    sbStats_t* pif_stats;
    sbCpuStats_t* cpu_stats;
 
    cout << "-----------------------" << endl;
    cout << "CRC errors" << endl;
    cout << "-----------------------" << endl;
 
    //---
    // Setup parameters
 
    tb->sb.clear_stats();
 
    tb->xgm_gen0.set_pkt_size(min, max);
    tb->xgm_gen0.set_crc_errors(interval);
    tb->sb.disable_signal_check = true;
 
    //---
    // Enable traffic
 
    tb->xgm_gen0.set_tx_bucket(cnt);
 
    //---
    // Wait for test to complete
 
    while (tb->xgm_gen0.get_tx_bucket() != 0) {
        wait(10, SC_NS);
    }
 
    //---
    // Check traffic
 
    wait(30000, SC_NS);
 
    pif_stats = tb->sb.get_pif_stats();
    cpu_stats = tb->sb.get_cpu_stats();
 
    if (pif_stats->rx_pkt_cnt != cnt) {
        cout << "ERROR: Not all packets received by PIF." << endl;
        cout << pif_stats->rx_pkt_cnt << " " << cnt << endl;
        sc_stop();
    }
 
    if (cpu_stats->crc_error_cnt != pif_stats->crc_error_cnt) {
        cout << "ERROR: Not all CRC errors reported to cpu" << endl;
        sc_stop();
    }
 
    //---
    // Return parameters to default state
 
    tb->xgm_gen0.set_crc_errors(0);
    tb->sb.disable_signal_check = false;
}
 
void testcases::test_txdfifo_ovflow() {
 
    sbStats_t* xgm_stats;
    sbCpuStats_t* cpu_stats;
 
    cout << "-----------------------" << endl;
    cout << "TXD FIFO overflow" << endl;
    cout << "-----------------------" << endl;
 
    //---
    // Setup parameters
 
    tb->sb.clear_stats();
 
    tb->pif_gen0.set_pkt_size(1000, 1000);
 
    tb->cpu_if0.set_param(cpu_if::TX_ENABLE, 0);
    tb->sb.disable_signal_check = true;
 
    //---
    // Enable traffic
 
    tb->pif_gen0.set_tx_bucket(2);
 
    //---
    // Wait for packets to be sent
 
    while (tb->pif_gen0.get_tx_bucket() != 0) {
        wait(10, SC_NS);
    }
 
    wait(30000, SC_NS);
 
    //---
    // Check errors reported
 
    cpu_stats = tb->sb.get_cpu_stats();
    cout << "Count: " << cpu_stats->txd_fifo_ovflow_cnt << endl;
    sc_assert(cpu_stats->txd_fifo_ovflow_cnt == 1);
 
    //---
    // Flush out bad packets
 
    tb->xgm_if0.allow_idle_errors = true;
    tb->sb.disable_packet_check = true;
    tb->cpu_if0.set_param(cpu_if::TX_ENABLE, 1);
 
    wait(30000, SC_NS);
    tb->xgm_if0.allow_idle_errors = false;
    tb->sb.disable_packet_check = false;
 
    //---
    // Check errors reported
 
    cpu_stats = tb->sb.get_cpu_stats();
 
    //---
    // Enable traffic
 
    tb->pif_gen0.set_tx_bucket(2);
 
    //---
    // Wait for packets to be sent
 
    while (tb->pif_gen0.get_tx_bucket() != 0) {
        wait(10, SC_NS);
    }
 
    wait(30000, SC_NS);
 
    xgm_stats = tb->sb.get_xgm_stats();
    sc_assert(xgm_stats->rx_pkt_cnt == 4);
 
    //---
    // Return parameters to default state
 
    tb->cpu_if0.set_param(cpu_if::TX_ENABLE, 1);
    tb->sb.disable_signal_check = false;
}
 
void testcases::test_rxdfifo_ovflow() {
 
    sbStats_t* pif_stats;
    sbCpuStats_t* cpu_stats;
 
    cout << "-----------------------" << endl;
    cout << "RXD FIFO overflow" << endl;
    cout << "-----------------------" << endl;
 
    //---
    // Setup parameters
 
    tb->sb.clear_stats();
 
    tb->xgm_gen0.set_pkt_size(1000, 1000);
 
    tb->pkt_if0.disable_rx = true;
    tb->pkt_if0.allow_rx_sop_err = true;
    tb->sb.disable_flags_check = true;
    tb->sb.disable_packet_check = true;
    tb->sb.disable_signal_check = true;
 
    //---
    // Enable traffic
 
    tb->xgm_gen0.set_tx_bucket(3);
 
    //---
    // Wait for packets to be sent
 
    while (tb->xgm_gen0.get_tx_bucket() != 0) {
        wait(10, SC_NS);
    }
 
    wait(30000, SC_NS);
 
    //---
    // Check errors reported
 
    cpu_stats = tb->sb.get_cpu_stats();
    sc_assert(cpu_stats->rxd_fifo_ovflow_cnt == 2);
 
    //---
    // Flush out bad packets
 
    tb->pkt_if0.disable_rx = false;
 
    wait(30000, SC_NS);
 
    //---
    // Check errors reported
 
    cpu_stats = tb->sb.get_cpu_stats();
    tb->sb.clear_stats();
    tb->sb.disable_flags_check = false;
    tb->sb.disable_packet_check = false;
 
    //---
    // Enable traffic
 
    tb->xgm_gen0.set_tx_bucket(2);
 
    //---
    // Wait for packets to be sent
 
    while (tb->xgm_gen0.get_tx_bucket() != 0) {
        wait(10, SC_NS);
    }
 
    wait(30000, SC_NS);
 
    pif_stats = tb->sb.get_pif_stats();
    sc_assert(pif_stats->rx_pkt_cnt == 2);
 
    //---
    // Return parameters to default state
 
    tb->pkt_if0.allow_rx_sop_err = false;
    tb->sb.disable_signal_check = false;
}
 
void testcases::test_rx_fragments(int min, int max, int cnt, int interval) {
 
    sbStats_t* pif_stats;
    sbCpuStats_t* cpu_stats;
 
    cout << "-----------------------" << endl;
    cout << "Fragments errors" << endl;
    cout << "-----------------------" << endl;
 
    //---
    // Setup parameters
 
    tb->sb.clear_stats();
 
    tb->xgm_gen0.set_pkt_size(min, max);
    tb->xgm_gen0.set_fragment_errors(interval);
    tb->sb.disable_signal_check = true;
 
    //---
    // Enable traffic
 
    tb->xgm_gen0.set_tx_bucket(cnt);
 
    //---
    // Wait for test to complete
 
    while (tb->xgm_gen0.get_tx_bucket() != 0) {
        wait(10, SC_NS);
    }
 
    //---
    // Check traffic
 
    wait(30000, SC_NS);
 
    pif_stats = tb->sb.get_pif_stats();
    cpu_stats = tb->sb.get_cpu_stats();
 
    if (pif_stats->rx_pkt_cnt != cnt) {
        cout << "ERROR: Not all packets received by PIF." << endl;
        cout << pif_stats->rx_pkt_cnt << " " << cnt << endl;
        sc_stop();
    }
 
    if ((cpu_stats->fragment_error_cnt + cpu_stats->crc_error_cnt)
                != pif_stats->fragment_error_cnt) {
        cout << "ERROR: Not all fragment errors reported to cpu" << endl;
        sc_stop();
    }
 
    //---
    // Return parameters to default state
 
    tb->xgm_gen0.set_fragment_errors(0);
    tb->sb.disable_signal_check = false;
}
 
void testcases::test_rx_coding_err(int cnt, int interval) {
 
    sbStats_t* pif_stats;
    sbStats_t* xgm_stats;
    sbCpuStats_t* cpu_stats;
 
    cout << "-----------------------" << endl;
    cout << "Coding errors" << endl;
    cout << "-----------------------" << endl;
 
    //---
    // Setup parameters
 
    tb->sb.clear_stats();
 
    tb->xgm_gen0.set_pkt_size(64, 69);
    tb->xgm_gen0.set_coding_errors(interval);
    tb->sb.disable_signal_check = true;
 
    //---
    // Enable traffic
 
    tb->xgm_gen0.set_tx_bucket(cnt);
 
    //---
    // Wait for test to complete
 
    while (tb->xgm_gen0.get_tx_bucket() != 0) {
        wait(10, SC_NS);
    }
 
    //---
    // Check traffic
 
    wait(30000, SC_NS);
 
    pif_stats = tb->sb.get_pif_stats();
    xgm_stats = tb->sb.get_xgm_stats();
    cpu_stats = tb->sb.get_cpu_stats();
 
    if (pif_stats->rx_pkt_cnt != xgm_stats->tx_pkt_cnt) {
        cout << "ERROR: Not all packets received by PIF." << endl;
        cout << pif_stats->rx_pkt_cnt << " " << xgm_stats->tx_pkt_cnt << endl;
        sc_stop();
    }
 
    if (cpu_stats->crc_error_cnt != xgm_stats->crc_error_cnt) {
        cout << "ERROR: Not all coding errors reported to cpu" << endl;
        sc_stop();
    }
 
    //---
    // Return parameters to default state
 
    tb->xgm_gen0.set_coding_errors(0);
    tb->sb.disable_signal_check = false;
}
 
void testcases::test_rx_local_fault(int min, int max, int cnt, int interval) {
 
    sbStats_t* pif_stats;
 
    cout << "-----------------------" << endl;
    cout << "Local fault" << endl;
    cout << "-----------------------" << endl;
 
    //---
    // Setup parameters
 
    tb->sb.clear_stats();
 
    tb->pif_gen0.set_pkt_size(min, max);
    tb->xgm_gen0.set_pkt_size(min, max);
 
    tb->xgm_gen0.set_local_fault(interval);
    tb->sb.disable_signal_check = true;
    tb->xgm_if0.allow_idle_errors = true;
    tb->xgm_if0.disable_receive = true;
 
    //---
    // Enable traffic
 
    tb->pif_gen0.set_tx_bucket(cnt);
    tb->xgm_gen0.set_tx_bucket(cnt);
 
    //---
    // Wait for test to complete
 
    while (tb->xgm_gen0.get_tx_bucket() != 0) {
        wait(10, SC_NS);
    }
 
    //---
    // Check traffic
 
    wait(30000, SC_NS);
 
    pif_stats = tb->sb.get_pif_stats();
 
    if (pif_stats->rx_pkt_cnt != cnt) {
        cout << "ERROR: Not all packets received by PIF." << endl;
        cout << pif_stats->rx_pkt_cnt << " " << cnt << endl;
        sc_stop();
    }
 
    //---
    // Return parameters to default state
 
    tb->xgm_gen0.set_local_fault(0);
    tb->sb.disable_signal_check = false;
    tb->xgm_if0.allow_idle_errors = false;
    tb->xgm_if0.disable_receive = false;
}
 
void testcases::test_rx_remote_fault(int min, int max, int cnt, int interval) {
 
    sbStats_t* pif_stats;
 
    cout << "-----------------------" << endl;
    cout << "Remote fault" << endl;
    cout << "-----------------------" << endl;
 
    //---
    // Setup parameters
 
    tb->sb.clear_stats();
 
    tb->pif_gen0.set_pkt_size(min, max);
    tb->xgm_gen0.set_pkt_size(min, max);
 
    tb->xgm_gen0.set_remote_fault(interval);
    tb->sb.disable_signal_check = true;
    tb->xgm_if0.allow_idle_errors = true;
    tb->xgm_if0.disable_receive = true;
 
    //---
    // Enable traffic
 
    tb->pif_gen0.set_tx_bucket(cnt);
    tb->xgm_gen0.set_tx_bucket(cnt);
 
    //---
    // Wait for test to complete
 
    while (tb->xgm_gen0.get_tx_bucket() != 0) {
        wait(10, SC_NS);
    }
 
    //---
    // Check traffic
 
    wait(30000, SC_NS);
 
    pif_stats = tb->sb.get_pif_stats();
 
    if (pif_stats->rx_pkt_cnt != cnt) {
        cout << "ERROR: Not all packets received by PIF." << endl;
        cout << pif_stats->rx_pkt_cnt << " " << cnt << endl;
        sc_stop();
    }
 
    //---
    // Return parameters to default state
 
    tb->xgm_gen0.set_remote_fault(0);
    tb->sb.disable_signal_check = false;
    tb->xgm_if0.allow_idle_errors = false;
    tb->xgm_if0.disable_receive = false;
}
 
void testcases::test_rx_pause(int min, int max, int cnt, int interval) {
 
    sbCpuStats_t* cpu_stats;
 
    cout << "-----------------------" << endl;
    cout << "Receive Pause" << endl;
    cout << "-----------------------" << endl;
 
    //---
    // Setup parameters
 
    tb->sb.clear_stats();
 
    tb->xgm_gen0.set_pkt_size(min, max);
 
    tb->xgm_gen0.set_inject_pause(interval);
    tb->sb.disable_signal_check = true;
 
    //---
    // Enable traffic
 
    tb->xgm_gen0.set_tx_bucket(cnt);
 
    //---
    // Wait for test to complete
 
    while (tb->xgm_gen0.get_tx_bucket() != 0) {
        wait(10, SC_NS);
    }
 
    //---
    // Check traffic
 
    wait(30000, SC_NS);
 
    cpu_stats = tb->sb.get_cpu_stats();
 
    if (cpu_stats->rx_pause_frame_cnt == 0) {
        cout << "ERROR: No pause frames received." << endl;
        sc_stop();
    }
 
    //---
    // Return parameters to default state
 
    tb->xgm_gen0.set_inject_pause(0);
    tb->sb.disable_signal_check = false;
}
 
void testcases::test_interrupt_mask() {
 
    sbCpuStats_t* cpu_stats;
 
    cout << "-----------------------" << endl;
    cout << "Interrupt Mask" << endl;
    cout << "-----------------------" << endl;
 
    //---
    // Setup parameters
 
    tb->sb.clear_stats();
    tb->sb.disable_signal_check = true;
 
 
    //---
    // Test unmasked
 
    tb->cpu_if0.set_interrupt(cpu_if::INT_CRC_ERROR);
 
    wait(300, SC_NS);
 
    cpu_stats = tb->sb.get_cpu_stats();
    sc_assert(cpu_stats->crc_error_cnt == 1);
 
 
    //---
    // Test masked
 
    tb->cpu_if0.set_interrupt_mask(cpu_if::INT_CRC_ERROR, 0);
    tb->cpu_if0.set_interrupt(cpu_if::INT_CRC_ERROR);
 
    wait(300, SC_NS);
 
    cpu_stats = tb->sb.get_cpu_stats();
    sc_assert(cpu_stats->crc_error_cnt == 1);
 
 
    //---
    // Return parameters to default state
 
    tb->sb.disable_signal_check = false;
    tb->cpu_if0.set_interrupt_mask(cpu_if::INT_CRC_ERROR, 1);
}