qemu

e1000e-test.c (6970B)

---

  /*
  * QTest testcase for e1000e NIC
  *
  * Copyright (c) 2015 Ravello Systems LTD (http://ravellosystems.com)
  * Developed by Daynix Computing LTD (http://www.daynix.com)
  *
  * Authors:
  * Dmitry Fleytman <dmitry@daynix.com>
  * Leonid Bloch <leonid@daynix.com>
  * Yan Vugenfirer <yan@daynix.com>
  *
  * This library 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 library 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 library; if not, see <http://www.gnu.org/licenses/>.
  */
 
 
 #include "qemu/osdep.h"
 #include "libqtest-single.h"
 #include "libqos/pci-pc.h"
 #include "qemu/sockets.h"
 #include "qemu/iov.h"
 #include "qemu/module.h"
 #include "qemu/bitops.h"
 #include "libqos/libqos-malloc.h"
 #include "libqos/e1000e.h"
 #include "hw/net/e1000_regs.h"
 
 static void e1000e_send_verify(QE1000E *d, int *test_sockets, QGuestAllocator *alloc)
 {
     struct e1000_tx_desc descr;
     static const int data_len = 64;
     char buffer[64];
     int ret;
     uint32_t recv_len;
 
     /* Prepare test data buffer */
     uint64_t data = guest_alloc(alloc, data_len);
     memwrite(data, "TEST", 5);
 
     /* Prepare TX descriptor */
     memset(&descr, 0, sizeof(descr));
     descr.buffer_addr = cpu_to_le64(data);
     descr.lower.data = cpu_to_le32(E1000_TXD_CMD_RS   |
                                    E1000_TXD_CMD_EOP  |
                                    E1000_TXD_CMD_DEXT |
                                    E1000_TXD_DTYP_D   |
                                    data_len);
 
     /* Put descriptor to the ring */
     e1000e_tx_ring_push(d, &descr);
 
     /* Wait for TX WB interrupt */
     e1000e_wait_isr(d, E1000E_TX0_MSG_ID);
 
     /* Check DD bit */
     g_assert_cmphex(le32_to_cpu(descr.upper.data) & E1000_TXD_STAT_DD, ==,
                     E1000_TXD_STAT_DD);
 
     /* Check data sent to the backend */
     ret = recv(test_sockets[0], &recv_len, sizeof(recv_len), 0);
     g_assert_cmpint(ret, == , sizeof(recv_len));
     ret = recv(test_sockets[0], buffer, 64, 0);
     g_assert_cmpint(ret, >=, 5);
     g_assert_cmpstr(buffer, == , "TEST");
 
     /* Free test data buffer */
     guest_free(alloc, data);
 }
 
 static void e1000e_receive_verify(QE1000E *d, int *test_sockets, QGuestAllocator *alloc)
 {
     union e1000_rx_desc_extended descr;
 
     char test[] = "TEST";
     int len = htonl(sizeof(test));
     struct iovec iov[] = {
         {
             .iov_base = &len,
             .iov_len = sizeof(len),
         },{
             .iov_base = test,
             .iov_len = sizeof(test),
         },
     };
 
     static const int data_len = 64;
     char buffer[64];
     int ret;
 
     /* Send a dummy packet to device's socket*/
     ret = iov_send(test_sockets[0], iov, 2, 0, sizeof(len) + sizeof(test));
     g_assert_cmpint(ret, == , sizeof(test) + sizeof(len));
 
     /* Prepare test data buffer */
     uint64_t data = guest_alloc(alloc, data_len);
 
     /* Prepare RX descriptor */
     memset(&descr, 0, sizeof(descr));
     descr.read.buffer_addr = cpu_to_le64(data);
 
     /* Put descriptor to the ring */
     e1000e_rx_ring_push(d, &descr);
 
     /* Wait for TX WB interrupt */
     e1000e_wait_isr(d, E1000E_RX0_MSG_ID);
 
     /* Check DD bit */
     g_assert_cmphex(le32_to_cpu(descr.wb.upper.status_error) &
         E1000_RXD_STAT_DD, ==, E1000_RXD_STAT_DD);
 
     /* Check data sent to the backend */
     memread(data, buffer, sizeof(buffer));
     g_assert_cmpstr(buffer, == , "TEST");
 
     /* Free test data buffer */
     guest_free(alloc, data);
 }
 
 static void test_e1000e_init(void *obj, void *data, QGuestAllocator * alloc)
 {
     /* init does nothing */
 }
 
 static void test_e1000e_tx(void *obj, void *data, QGuestAllocator * alloc)
 {
     QE1000E_PCI *e1000e = obj;
     QE1000E *d = &e1000e->e1000e;
     QOSGraphObject *e_object = obj;
     QPCIDevice *dev = e_object->get_driver(e_object, "pci-device");
 
     /* FIXME: add spapr support */
     if (qpci_check_buggy_msi(dev)) {
         return;
     }
 
     e1000e_send_verify(d, data, alloc);
 }
 
 static void test_e1000e_rx(void *obj, void *data, QGuestAllocator * alloc)
 {
     QE1000E_PCI *e1000e = obj;
     QE1000E *d = &e1000e->e1000e;
     QOSGraphObject *e_object = obj;
     QPCIDevice *dev = e_object->get_driver(e_object, "pci-device");
 
     /* FIXME: add spapr support */
     if (qpci_check_buggy_msi(dev)) {
         return;
     }
 
     e1000e_receive_verify(d, data, alloc);
 }
 
 static void test_e1000e_multiple_transfers(void *obj, void *data,
                                            QGuestAllocator *alloc)
 {
     static const long iterations = 4 * 1024;
     long i;
 
     QE1000E_PCI *e1000e = obj;
     QE1000E *d = &e1000e->e1000e;
     QOSGraphObject *e_object = obj;
     QPCIDevice *dev = e_object->get_driver(e_object, "pci-device");
 
     /* FIXME: add spapr support */
     if (qpci_check_buggy_msi(dev)) {
         return;
     }
 
     for (i = 0; i < iterations; i++) {
         e1000e_send_verify(d, data, alloc);
         e1000e_receive_verify(d, data, alloc);
     }
 
 }
 
 static void test_e1000e_hotplug(void *obj, void *data, QGuestAllocator * alloc)
 {
     QTestState *qts = global_qtest;  /* TODO: get rid of global_qtest here */
     QE1000E_PCI *dev = obj;
 
     if (dev->pci_dev.bus->not_hotpluggable) {
         g_test_skip("pci bus does not support hotplug");
         return;
     }
 
     qtest_qmp_device_add(qts, "e1000e", "e1000e_net", "{'addr': '0x06'}");
     qpci_unplug_acpi_device_test(qts, "e1000e_net", 0x06);
 }
 
 static void data_test_clear(void *sockets)
 {
     int *test_sockets = sockets;
 
     close(test_sockets[0]);
     qos_invalidate_command_line();
     close(test_sockets[1]);
     g_free(test_sockets);
 }
 
 static void *data_test_init(GString *cmd_line, void *arg)
 {
     int *test_sockets = g_new(int, 2);
     int ret = socketpair(PF_UNIX, SOCK_STREAM, 0, test_sockets);
     g_assert_cmpint(ret, != , -1);
 
     g_string_append_printf(cmd_line, " -netdev socket,fd=%d,id=hs0 ",
                            test_sockets[1]);
 
     g_test_queue_destroy(data_test_clear, test_sockets);
     return test_sockets;
 }
 
 static void register_e1000e_test(void)
 {
     QOSGraphTestOptions opts = {
         .before = data_test_init,
     };
 
     qos_add_test("init", "e1000e", test_e1000e_init, &opts);
     qos_add_test("tx", "e1000e", test_e1000e_tx, &opts);
     qos_add_test("rx", "e1000e", test_e1000e_rx, &opts);
     qos_add_test("multiple_transfers", "e1000e",
                       test_e1000e_multiple_transfers, &opts);
     qos_add_test("hotplug", "e1000e", test_e1000e_hotplug, &opts);
 }
 
 libqos_init(register_e1000e_test);