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
  18 typedef struct QTulip_pci QTulip_pci;
  19
  20 struct QTulip_pci {
  21     QOSGraphObject obj;
  22     QPCIDevice dev;
  23 };
  24
  25 static 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
  37 static 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
  48 static 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
  77 static 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
  91 libqos_init(tulip_register_nodes);