tests/e1000e-test.c

   1  /*
   2  * QTest testcase for e1000e NIC
   3  *
   4  * Copyright (c) 2015 Ravello Systems LTD (http://ravellosystems.com)
   5  * Developed by Daynix Computing LTD (http://www.daynix.com)
   6  *
   7  * Authors:
   8  * Dmitry Fleytman <dmitry@daynix.com>
   9  * Leonid Bloch <leonid@daynix.com>
  10  * Yan Vugenfirer <yan@daynix.com>
  11  *
  12  * This library is free software; you can redistribute it and/or
  13  * modify it under the terms of the GNU Lesser General Public
  14  * License as published by the Free Software Foundation; either
  15  * version 2 of the License, or (at your option) any later version.
  16  *
  17  * This library is distributed in the hope that it will be useful,
  18  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  19  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  20  * Lesser General Public License for more details.
  21  *
  22  * You should have received a copy of the GNU Lesser General Public
  23  * License along with this library; if not, see <http://www.gnu.org/licenses/>.
  24  */
  25
  26
  27 #include "qemu/osdep.h"
  28 #include "qemu-common.h"
  29 #include "libqtest.h"
  30 #include "qemu-common.h"
  31 #include "libqos/pci-pc.h"
  32 #include "qemu/sockets.h"
  33 #include "qemu/iov.h"
  34 #include "qemu/module.h"
  35 #include "qemu/bitops.h"
  36 #include "libqos/malloc.h"
  37 #include "libqos/e1000e.h"
  38
  39 static void e1000e_send_verify(QE1000E *d, int *test_sockets, QGuestAllocator *alloc)
  40 {
  41     struct {
  42         uint64_t buffer_addr;
  43         union {
  44             uint32_t data;
  45             struct {
  46                 uint16_t length;
  47                 uint8_t cso;
  48                 uint8_t cmd;
  49             } flags;
  50         } lower;
  51         union {
  52             uint32_t data;
  53             struct {
  54                 uint8_t status;
  55                 uint8_t css;
  56                 uint16_t special;
  57             } fields;
  58         } upper;
  59     } descr;
  60
  61     static const uint32_t dtyp_data = BIT(20);
  62     static const uint32_t dtyp_ext  = BIT(29);
  63     static const uint32_t dcmd_rs   = BIT(27);
  64     static const uint32_t dcmd_eop  = BIT(24);
  65     static const uint32_t dsta_dd   = BIT(0);
  66     static const int data_len = 64;
  67     char buffer[64];
  68     int ret;
  69     uint32_t recv_len;
  70
  71     /* Prepare test data buffer */
  72     uint64_t data = guest_alloc(alloc, data_len);
  73     memwrite(data, "TEST", 5);
  74
  75     /* Prepare TX descriptor */
  76     memset(&descr, 0, sizeof(descr));
  77     descr.buffer_addr = cpu_to_le64(data);
  78     descr.lower.data = cpu_to_le32(dcmd_rs   |
  79                                    dcmd_eop  |
  80                                    dtyp_ext  |
  81                                    dtyp_data |
  82                                    data_len);
  83
  84     /* Put descriptor to the ring */
  85     e1000e_tx_ring_push(d, &descr);
  86
  87     /* Wait for TX WB interrupt */
  88     e1000e_wait_isr(d, E1000E_TX0_MSG_ID);
  89
  90     /* Check DD bit */
  91     g_assert_cmphex(le32_to_cpu(descr.upper.data) & dsta_dd, ==, dsta_dd);
  92
  93     /* Check data sent to the backend */
  94     ret = qemu_recv(test_sockets[0], &recv_len, sizeof(recv_len), 0);
  95     g_assert_cmpint(ret, == , sizeof(recv_len));
  96     qemu_recv(test_sockets[0], buffer, 64, 0);
  97     g_assert_cmpstr(buffer, == , "TEST");
  98
  99     /* Free test data buffer */
 100     guest_free(alloc, data);
 101 }
 102
 103 static void e1000e_receive_verify(QE1000E *d, int *test_sockets, QGuestAllocator *alloc)
 104 {
 105     union {
 106         struct {
 107             uint64_t buffer_addr;
 108             uint64_t reserved;
 109         } read;
 110         struct {
 111             struct {
 112                 uint32_t mrq;
 113                 union {
 114                     uint32_t rss;
 115                     struct {
 116                         uint16_t ip_id;
 117                         uint16_t csum;
 118                     } csum_ip;
 119                 } hi_dword;
 120             } lower;
 121             struct {
 122                 uint32_t status_error;
 123                 uint16_t length;
 124                 uint16_t vlan;
 125             } upper;
 126         } wb;
 127     } descr;
 128
 129     static const uint32_t esta_dd = BIT(0);
 130
 131     char test[] = "TEST";
 132     int len = htonl(sizeof(test));
 133     struct iovec iov[] = {
 134         {
 135             .iov_base = &len,
 136             .iov_len = sizeof(len),
 137         },{
 138             .iov_base = test,
 139             .iov_len = sizeof(test),
 140         },
 141     };
 142
 143     static const int data_len = 64;
 144     char buffer[64];
 145     int ret;
 146
 147     /* Send a dummy packet to device's socket*/
 148     ret = iov_send(test_sockets[0], iov, 2, 0, sizeof(len) + sizeof(test));
 149     g_assert_cmpint(ret, == , sizeof(test) + sizeof(len));
 150
 151     /* Prepare test data buffer */
 152     uint64_t data = guest_alloc(alloc, data_len);
 153
 154     /* Prepare RX descriptor */
 155     memset(&descr, 0, sizeof(descr));
 156     descr.read.buffer_addr = cpu_to_le64(data);
 157
 158     /* Put descriptor to the ring */
 159     e1000e_rx_ring_push(d, &descr);
 160
 161     /* Wait for TX WB interrupt */
 162     e1000e_wait_isr(d, E1000E_RX0_MSG_ID);
 163
 164     /* Check DD bit */
 165     g_assert_cmphex(le32_to_cpu(descr.wb.upper.status_error) &
 166         esta_dd, ==, esta_dd);
 167
 168     /* Check data sent to the backend */
 169     memread(data, buffer, sizeof(buffer));
 170     g_assert_cmpstr(buffer, == , "TEST");
 171
 172     /* Free test data buffer */
 173     guest_free(alloc, data);
 174 }
 175
 176 static void test_e1000e_init(void *obj, void *data, QGuestAllocator * alloc)
 177 {
 178     /* init does nothing */
 179 }
 180
 181 static void test_e1000e_tx(void *obj, void *data, QGuestAllocator * alloc)
 182 {
 183     QE1000E_PCI *e1000e = obj;
 184     QE1000E *d = &e1000e->e1000e;
 185     QOSGraphObject *e_object = obj;
 186     QPCIDevice *dev = e_object->get_driver(e_object, "pci-device");
 187
 188     /* FIXME: add spapr support */
 189     if (qpci_check_buggy_msi(dev)) {
 190         return;
 191     }
 192
 193     e1000e_send_verify(d, data, alloc);
 194 }
 195
 196 static void test_e1000e_rx(void *obj, void *data, QGuestAllocator * alloc)
 197 {
 198     QE1000E_PCI *e1000e = obj;
 199     QE1000E *d = &e1000e->e1000e;
 200     QOSGraphObject *e_object = obj;
 201     QPCIDevice *dev = e_object->get_driver(e_object, "pci-device");
 202
 203     /* FIXME: add spapr support */
 204     if (qpci_check_buggy_msi(dev)) {
 205         return;
 206     }
 207
 208     e1000e_receive_verify(d, data, alloc);
 209 }
 210
 211 static void test_e1000e_multiple_transfers(void *obj, void *data,
 212                                            QGuestAllocator *alloc)
 213 {
 214     static const long iterations = 4 * 1024;
 215     long i;
 216
 217     QE1000E_PCI *e1000e = obj;
 218     QE1000E *d = &e1000e->e1000e;
 219     QOSGraphObject *e_object = obj;
 220     QPCIDevice *dev = e_object->get_driver(e_object, "pci-device");
 221
 222     /* FIXME: add spapr support */
 223     if (qpci_check_buggy_msi(dev)) {
 224         return;
 225     }
 226
 227     for (i = 0; i < iterations; i++) {
 228         e1000e_send_verify(d, data, alloc);
 229         e1000e_receive_verify(d, data, alloc);
 230     }
 231
 232 }
 233
 234 static void test_e1000e_hotplug(void *obj, void *data, QGuestAllocator * alloc)
 235 {
 236     QTestState *qts = global_qtest;  /* TODO: get rid of global_qtest here */
 237
 238     qtest_qmp_device_add("e1000e", "e1000e_net", "{'addr': '0x06'}");
 239     qpci_unplug_acpi_device_test(qts, "e1000e_net", 0x06);
 240 }
 241
 242 static void data_test_clear(void *sockets)
 243 {
 244     int *test_sockets = sockets;
 245
 246     close(test_sockets[0]);
 247     qos_invalidate_command_line();
 248     close(test_sockets[1]);
 249     g_free(test_sockets);
 250 }
 251
 252 static void *data_test_init(GString *cmd_line, void *arg)
 253 {
 254     int *test_sockets = g_new(int, 2);
 255     int ret = socketpair(PF_UNIX, SOCK_STREAM, 0, test_sockets);
 256     g_assert_cmpint(ret, != , -1);
 257
 258     g_string_append_printf(cmd_line, " -netdev socket,fd=%d,id=hs0 ",
 259                            test_sockets[1]);
 260
 261     g_test_queue_destroy(data_test_clear, test_sockets);
 262     return test_sockets;
 263 }
 264
 265 static void register_e1000e_test(void)
 266 {
 267     QOSGraphTestOptions opts = {
 268         .before = data_test_init,
 269     };
 270
 271     qos_add_test("init", "e1000e", test_e1000e_init, &opts);
 272     qos_add_test("tx", "e1000e", test_e1000e_tx, &opts);
 273     qos_add_test("rx", "e1000e", test_e1000e_rx, &opts);
 274     qos_add_test("multiple_transfers", "e1000e",
 275                       test_e1000e_multiple_transfers, &opts);
 276     qos_add_test("hotplug", "e1000e", test_e1000e_hotplug, &opts);
 277 }
 278
 279 libqos_init(register_e1000e_test);