2 * QTest testcase for VirtIO NIC
4 * Copyright (c) 2014 SUSE LINUX Products GmbH
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.
10 #include "qemu/osdep.h"
11 #include "qemu-common.h"
14 #include "qemu/module.h"
15 #include "qapi/qmp/qdict.h"
16 #include "hw/virtio/virtio-net.h"
17 #include "libqos/qgraph.h"
18 #include "libqos/virtio-net.h"
21 #define ETH_P_RARP 0x8035
24 #define PCI_SLOT_HP 0x06
27 #define QVIRTIO_NET_TIMEOUT_US (30 * 1000 * 1000)
28 #define VNET_HDR_SIZE sizeof(struct virtio_net_hdr_mrg_rxbuf)
32 static void rx_test(QVirtioDevice *dev,
33 QGuestAllocator *alloc, QVirtQueue *vq,
40 int len = htonl(sizeof(test));
41 struct iovec iov[] = {
44 .iov_len = sizeof(len),
47 .iov_len = sizeof(test),
52 req_addr = guest_alloc(alloc, 64);
54 free_head = qvirtqueue_add(vq, req_addr, 64, true, false);
55 qvirtqueue_kick(dev, vq, free_head);
57 ret = iov_send(socket, iov, 2, 0, sizeof(len) + sizeof(test));
58 g_assert_cmpint(ret, ==, sizeof(test) + sizeof(len));
60 qvirtio_wait_used_elem(dev, vq, free_head, NULL, QVIRTIO_NET_TIMEOUT_US);
61 memread(req_addr + VNET_HDR_SIZE, buffer, sizeof(test));
62 g_assert_cmpstr(buffer, ==, "TEST");
64 guest_free(alloc, req_addr);
67 static void tx_test(QVirtioDevice *dev,
68 QGuestAllocator *alloc, QVirtQueue *vq,
77 req_addr = guest_alloc(alloc, 64);
78 memwrite(req_addr + VNET_HDR_SIZE, "TEST", 4);
80 free_head = qvirtqueue_add(vq, req_addr, 64, false, false);
81 qvirtqueue_kick(dev, vq, free_head);
83 qvirtio_wait_used_elem(dev, vq, free_head, NULL, QVIRTIO_NET_TIMEOUT_US);
84 guest_free(alloc, req_addr);
86 ret = qemu_recv(socket, &len, sizeof(len), 0);
87 g_assert_cmpint(ret, ==, sizeof(len));
90 ret = qemu_recv(socket, buffer, len, 0);
91 g_assert_cmpstr(buffer, ==, "TEST");
94 static void rx_stop_cont_test(QVirtioDevice *dev,
95 QGuestAllocator *alloc, QVirtQueue *vq,
100 char test[] = "TEST";
102 int len = htonl(sizeof(test));
104 struct iovec iov[] = {
107 .iov_len = sizeof(len),
110 .iov_len = sizeof(test),
115 req_addr = guest_alloc(alloc, 64);
117 free_head = qvirtqueue_add(vq, req_addr, 64, true, false);
118 qvirtqueue_kick(dev, vq, free_head);
120 rsp = qmp("{ 'execute' : 'stop'}");
123 ret = iov_send(socket, iov, 2, 0, sizeof(len) + sizeof(test));
124 g_assert_cmpint(ret, ==, sizeof(test) + sizeof(len));
126 /* We could check the status, but this command is more importantly to
127 * ensure the packet data gets queued in QEMU, before we do 'cont'.
129 rsp = qmp("{ 'execute' : 'query-status'}");
131 rsp = qmp("{ 'execute' : 'cont'}");
134 qvirtio_wait_used_elem(dev, vq, free_head, NULL, QVIRTIO_NET_TIMEOUT_US);
135 memread(req_addr + VNET_HDR_SIZE, buffer, sizeof(test));
136 g_assert_cmpstr(buffer, ==, "TEST");
138 guest_free(alloc, req_addr);
141 static void send_recv_test(void *obj, void *data, QGuestAllocator *t_alloc)
143 QVirtioNet *net_if = obj;
144 QVirtioDevice *dev = net_if->vdev;
145 QVirtQueue *rx = net_if->queues[0];
146 QVirtQueue *tx = net_if->queues[1];
149 rx_test(dev, t_alloc, rx, sv[0]);
150 tx_test(dev, t_alloc, tx, sv[0]);
153 static void stop_cont_test(void *obj, void *data, QGuestAllocator *t_alloc)
155 QVirtioNet *net_if = obj;
156 QVirtioDevice *dev = net_if->vdev;
157 QVirtQueue *rx = net_if->queues[0];
160 rx_stop_cont_test(dev, t_alloc, rx, sv[0]);
165 static void hotplug(void *obj, void *data, QGuestAllocator *t_alloc)
167 QVirtioPCIDevice *dev = obj;
168 QTestState *qts = dev->pdev->bus->qts;
169 const char *arch = qtest_get_arch();
171 qtest_qmp_device_add("virtio-net-pci", "net1",
172 "{'addr': %s}", stringify(PCI_SLOT_HP));
174 if (strcmp(arch, "i386") == 0 || strcmp(arch, "x86_64") == 0) {
175 qpci_unplug_acpi_device_test(qts, "net1", PCI_SLOT_HP);
179 static void announce_self(void *obj, void *data, QGuestAllocator *t_alloc)
186 uint16_t *proto = (uint16_t *)&buffer[12];
187 size_t total_received = 0;
188 uint64_t start, now, last_rxt, deadline;
190 /* Send a set of packets over a few second period */
191 rsp = qmp("{ 'execute' : 'announce-self', "
193 " 'initial': 20, 'max': 100,"
194 " 'rounds': 300, 'step': 10, 'id': 'bob' } }");
195 assert(!qdict_haskey(rsp, "error"));
198 /* Catch the first packet and make sure it's a RARP */
199 ret = qemu_recv(sv[0], &len, sizeof(len), 0);
200 g_assert_cmpint(ret, ==, sizeof(len));
203 ret = qemu_recv(sv[0], buffer, len, 0);
204 g_assert_cmpint(*proto, ==, htons(ETH_P_RARP));
207 * Stop the announcment by settings rounds to 0 on the
210 rsp = qmp("{ 'execute' : 'announce-self', "
212 " 'initial': 20, 'max': 100,"
213 " 'rounds': 0, 'step': 10, 'id': 'bob' } }");
214 assert(!qdict_haskey(rsp, "error"));
217 /* Now make sure the packets stop */
219 /* Times are in us */
220 start = g_get_monotonic_time();
221 /* 30 packets, max gap 100ms, * 4 for wiggle */
222 deadline = start + 1000 * (100 * 30 * 4);
227 ret = qemu_recv(sv[0], buffer, 60, MSG_DONTWAIT);
229 now = g_get_monotonic_time();
230 g_assert_cmpint(now, <, deadline);
236 total_received += ret;
238 /* Check it's not spewing loads */
239 g_assert_cmpint(total_received, <, 60 * 30 * 2);
241 g_assert_cmpint(saved_err, ==, EAGAIN);
243 /* 400ms, i.e. 4 worst case gaps */
244 if ((now - last_rxt) > (1000 * 100 * 4)) {
245 /* Nothings arrived for a while - must have stopped */
250 g_usleep(1000 * 100);
255 static void virtio_net_test_cleanup(void *sockets)
260 qos_invalidate_command_line();
265 static void *virtio_net_test_setup(GString *cmd_line, void *arg)
268 int *sv = g_new(int, 2);
270 ret = socketpair(PF_UNIX, SOCK_STREAM, 0, sv);
271 g_assert_cmpint(ret, !=, -1);
273 g_string_append_printf(cmd_line, " -netdev socket,fd=%d,id=hs0 ", sv[1]);
275 g_test_queue_destroy(virtio_net_test_cleanup, sv);
279 static void large_tx(void *obj, void *data, QGuestAllocator *t_alloc)
281 QVirtioNet *dev = obj;
282 QVirtQueue *vq = dev->queues[1];
285 size_t alloc_size = (size_t)data / 64;
288 /* Bypass the limitation by pointing several descriptors to a single
290 req_addr = guest_alloc(t_alloc, alloc_size);
291 free_head = qvirtqueue_add(vq, req_addr, alloc_size, false, true);
293 for (i = 0; i < 64; i++) {
294 qvirtqueue_add(vq, req_addr, alloc_size, false, i != 63);
296 qvirtqueue_kick(dev->vdev, vq, free_head);
298 qvirtio_wait_used_elem(dev->vdev, vq, free_head, NULL,
299 QVIRTIO_NET_TIMEOUT_US);
300 guest_free(t_alloc, req_addr);
303 static void *virtio_net_test_setup_nosocket(GString *cmd_line, void *arg)
305 g_string_append(cmd_line, " -netdev hubport,hubid=0,id=hs0 ");
309 static void register_virtio_net_test(void)
311 QOSGraphTestOptions opts = {
312 .before = virtio_net_test_setup,
315 qos_add_test("hotplug", "virtio-pci", hotplug, &opts);
317 qos_add_test("basic", "virtio-net", send_recv_test, &opts);
318 qos_add_test("rx_stop_cont", "virtio-net", stop_cont_test, &opts);
320 qos_add_test("announce-self", "virtio-net", announce_self, &opts);
322 /* These tests do not need a loopback backend. */
323 opts.before = virtio_net_test_setup_nosocket;
324 opts.arg = (gpointer)UINT_MAX;
325 qos_add_test("large_tx/uint_max", "virtio-net", large_tx, &opts);
326 opts.arg = (gpointer)NET_BUFSIZE;
327 qos_add_test("large_tx/net_bufsize", "virtio-net", large_tx, &opts);
330 libqos_init(register_virtio_net_test);