LXR qemu/tests/qtest/tulip-test.c

   1/*
   2 * QTest testcase for DEC/Intel Tulip 21143
   3 *
   4 * Copyright (c) 2020 Li Qiang <liq3ea@gmail.com>
   5 *
   6 * This work is licensed under the terms of the GNU GPL, version 2 or later.
   7 * See the COPYING file in the top-level directory.
   8 */
   9
  10#include "qemu/osdep.h"
  11#include "libqtest.h"
  12#include "qemu/module.h"
  13#include "libqos/qgraph.h"
  14#include "libqos/pci.h"
  15#include "qemu/bitops.h"
  16#include "hw/net/tulip.h"
  17
  18typedef struct QTulip_pci QTulip_pci;
  19
  20struct QTulip_pci {
  21    QOSGraphObject obj;
  22    QPCIDevice dev;
  23};
  24
  25static void *tulip_pci_get_driver(void *obj, const char *interface)
  26{
  27    QTulip_pci *tulip_pci = obj;
  28
  29    if (!g_strcmp0(interface, "pci-device")) {
  30        return &tulip_pci->dev;
  31    }
  32
  33    fprintf(stderr, "%s not present in tulip_pci\n", interface);
  34    g_assert_not_reached();
  35}
  36
  37static void *tulip_pci_create(void *pci_bus, QGuestAllocator *alloc, void *addr)
  38{
  39    QTulip_pci *tulip_pci = g_new0(QTulip_pci, 1);
  40    QPCIBus *bus = pci_bus;
  41
  42    qpci_device_init(&tulip_pci->dev, bus, addr);
  43    tulip_pci->obj.get_driver = tulip_pci_get_driver;
  44
  45    return &tulip_pci->obj;
  46}
  47
  48static void tulip_large_tx(void *obj, void *data, QGuestAllocator *alloc)
  49{
  50    QTulip_pci *tulip_pci = obj;
  51    QPCIDevice *dev = &tulip_pci->dev;
  52    QPCIBar bar;
  53    struct tulip_descriptor context;
  54    char guest_data[4096];
  55    uint64_t context_pa;
  56    uint64_t guest_pa;
  57
  58    qpci_device_enable(dev);
  59    bar = qpci_iomap(dev, 0, NULL);
  60    context_pa = guest_alloc(alloc, sizeof(context));
  61    guest_pa = guest_alloc(alloc, 4096);
  62    memset(guest_data, 'A', sizeof(guest_data));
  63    context.status = TDES0_OWN;
  64    context.control = TDES1_BUF2_SIZE_MASK << TDES1_BUF2_SIZE_SHIFT |
  65                      TDES1_BUF1_SIZE_MASK << TDES1_BUF1_SIZE_SHIFT;
  66    context.buf_addr2 = guest_pa;
  67    context.buf_addr1 = guest_pa;
  68
  69    qtest_memwrite(dev->bus->qts, context_pa, &context, sizeof(context));
  70    qtest_memwrite(dev->bus->qts, guest_pa, guest_data, sizeof(guest_data));
  71    qpci_io_writel(dev, bar, 0x20, context_pa);
  72    qpci_io_writel(dev, bar, 0x30, CSR6_ST);
  73    guest_free(alloc, context_pa);
  74    guest_free(alloc, guest_pa);
  75}
  76
  77static void tulip_register_nodes(void)
  78{
  79    QOSGraphEdgeOptions opts = {
  80        .extra_device_opts = "addr=04.0",
  81    };
  82    add_qpci_address(&opts, &(QPCIAddress) { .devfn = QPCI_DEVFN(4, 0) });
  83
  84    qos_node_create_driver("tulip", tulip_pci_create);
  85    qos_node_consumes("tulip", "pci-bus", &opts);
  86    qos_node_produces("tulip", "pci-device");
  87
  88    qos_add_test("tulip_large_tx", "tulip", tulip_large_tx, NULL);
  89}
  90
  91libqos_init(tulip_register_nodes);
  92