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tests/libqos: Replace clock_step with qtest_clock_step in virtio code

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Library functions should not rely on functions that require global_qtest
(since they might get used in tests that deal with multiple states).
Commit 1999a70a05 ("Make generic virtio code independent from
global_qtest") already tried to clean the libqos virtio code, but I
missed to replace the clock_step() function. Thus change it now to
qtest_clock_step() instead.
The logic of the qvirtio_wait_config_isr() function is now pushed
to the virtio-mmio.c and virtio-pci.c files instead, since we can
get the QTestState here easily.

Message-Id: <20190904130047.25808-4-thuth@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
This commit is contained in:
Thomas Huth 2019-09-03 08:18:46 +02:00
parent 4d81d77efd
commit b57ebd57b4
5 changed files with 37 additions and 20 deletions
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14
tests/libqos/virtio-mmio.c
View file

@ -101,6 +101,18 @@ static bool qvirtio_mmio_get_config_isr_status(QVirtioDevice *d)
return false;
}
static void qvirtio_mmio_wait_config_isr_status(QVirtioDevice *d,
gint64 timeout_us)
{
QVirtioMMIODevice *dev = container_of(d, QVirtioMMIODevice, vdev);
gint64 start_time = g_get_monotonic_time();
do {
g_assert(g_get_monotonic_time() - start_time <= timeout_us);
qtest_clock_step(dev->qts, 100);
} while (!qvirtio_mmio_get_config_isr_status(d));
}
static void qvirtio_mmio_queue_select(QVirtioDevice *d, uint16_t index)
{
QVirtioMMIODevice *dev = container_of(d, QVirtioMMIODevice, vdev);
@ -179,7 +191,7 @@ const QVirtioBus qvirtio_mmio = {
.get_status = qvirtio_mmio_get_status,
.set_status = qvirtio_mmio_set_status,
.get_queue_isr_status = qvirtio_mmio_get_queue_isr_status,
.get_config_isr_status = qvirtio_mmio_get_config_isr_status,
.wait_config_isr_status = qvirtio_mmio_wait_config_isr_status,
.queue_select = qvirtio_mmio_queue_select,
.get_queue_size = qvirtio_mmio_get_queue_size,
.set_queue_address = qvirtio_mmio_set_queue_address,

14
tests/libqos/virtio-pci.c
View file

@ -175,6 +175,18 @@ static bool qvirtio_pci_get_config_isr_status(QVirtioDevice *d)
}
}
static void qvirtio_pci_wait_config_isr_status(QVirtioDevice *d,
gint64 timeout_us)
{
QVirtioPCIDevice *dev = container_of(d, QVirtioPCIDevice, vdev);
gint64 start_time = g_get_monotonic_time();
do {
g_assert(g_get_monotonic_time() - start_time <= timeout_us);
qtest_clock_step(dev->pdev->bus->qts, 100);
} while (!qvirtio_pci_get_config_isr_status(d));
}
static void qvirtio_pci_queue_select(QVirtioDevice *d, uint16_t index)
{
QVirtioPCIDevice *dev = container_of(d, QVirtioPCIDevice, vdev);
@ -257,7 +269,7 @@ const QVirtioBus qvirtio_pci = {
.get_status = qvirtio_pci_get_status,
.set_status = qvirtio_pci_set_status,
.get_queue_isr_status = qvirtio_pci_get_queue_isr_status,
.get_config_isr_status = qvirtio_pci_get_config_isr_status,
.wait_config_isr_status = qvirtio_pci_wait_config_isr_status,
.queue_select = qvirtio_pci_queue_select,
.get_queue_size = qvirtio_pci_get_queue_size,
.set_queue_address = qvirtio_pci_set_queue_address,

20
tests/libqos/virtio.c
View file

@ -82,13 +82,13 @@ void qvirtio_set_driver_ok(QVirtioDevice *d)
VIRTIO_CONFIG_S_DRIVER | VIRTIO_CONFIG_S_ACKNOWLEDGE);
}
void qvirtio_wait_queue_isr(QVirtioDevice *d,
void qvirtio_wait_queue_isr(QTestState *qts, QVirtioDevice *d,
QVirtQueue *vq, gint64 timeout_us)
{
gint64 start_time = g_get_monotonic_time();
for (;;) {
clock_step(100);
qtest_clock_step(qts, 100);
if (d->bus->get_queue_isr_status(d, vq)) {
return;
}
@ -109,8 +109,8 @@ uint8_t qvirtio_wait_status_byte_no_isr(QTestState *qts, QVirtioDevice *d,
gint64 start_time = g_get_monotonic_time();
uint8_t val;
while ((val = readb(addr)) == 0xff) {
clock_step(100);
while ((val = qtest_readb(qts, addr)) == 0xff) {
qtest_clock_step(qts, 100);
g_assert(!d->bus->get_queue_isr_status(d, vq));
g_assert(g_get_monotonic_time() - start_time <= timeout_us);
}
@ -137,7 +137,7 @@ void qvirtio_wait_used_elem(QTestState *qts, QVirtioDevice *d,
for (;;) {
uint32_t got_desc_idx;
clock_step(100);
qtest_clock_step(qts, 100);
if (d->bus->get_queue_isr_status(d, vq) &&
qvirtqueue_get_buf(qts, vq, &got_desc_idx, len)) {
@ -151,15 +151,7 @@ void qvirtio_wait_used_elem(QTestState *qts, QVirtioDevice *d,
void qvirtio_wait_config_isr(QVirtioDevice *d, gint64 timeout_us)
{
gint64 start_time = g_get_monotonic_time();
for (;;) {
clock_step(100);
if (d->bus->get_config_isr_status(d)) {
return;
}
g_assert(g_get_monotonic_time() - start_time <= timeout_us);
}
d->bus->wait_config_isr_status(d, timeout_us);
}
void qvring_init(QTestState *qts, const QGuestAllocator *alloc, QVirtQueue *vq,

6
tests/libqos/virtio.h
View file

@ -69,8 +69,8 @@ struct QVirtioBus {
/* Get the queue ISR status of the device */
bool (*get_queue_isr_status)(QVirtioDevice *d, QVirtQueue *vq);
/* Get the configuration ISR status of the device */
bool (*get_config_isr_status)(QVirtioDevice *d);
/* Wait for the configuration ISR status of the device */
void (*wait_config_isr_status)(QVirtioDevice *d, gint64 timeout_us);
/* Select a queue to work on */
void (*queue_select)(QVirtioDevice *d, uint16_t index);
@ -112,7 +112,7 @@ void qvirtio_set_acknowledge(QVirtioDevice *d);
void qvirtio_set_driver(QVirtioDevice *d);
void qvirtio_set_driver_ok(QVirtioDevice *d);
void qvirtio_wait_queue_isr(QVirtioDevice *d,
void qvirtio_wait_queue_isr(QTestState *qts, QVirtioDevice *d,
QVirtQueue *vq, gint64 timeout_us);
uint8_t qvirtio_wait_status_byte_no_isr(QTestState *qts, QVirtioDevice *d,
QVirtQueue *vq,

3
tests/virtio-blk-test.c
View file

@ -737,6 +737,7 @@ static void resize(void *obj, void *data, QGuestAllocator *t_alloc)
int n_size = TEST_IMAGE_SIZE / 2;
uint64_t capacity;
QVirtQueue *vq;
QTestState *qts = global_qtest;
vq = qvirtqueue_setup(dev, t_alloc, 0);
@ -746,7 +747,7 @@ static void resize(void *obj, void *data, QGuestAllocator *t_alloc)
" 'arguments': { 'device': 'drive0', "
" 'size': %d } }", n_size);
qvirtio_wait_queue_isr(dev, vq, QVIRTIO_BLK_TIMEOUT_US);
qvirtio_wait_queue_isr(qts, dev, vq, QVIRTIO_BLK_TIMEOUT_US);
capacity = qvirtio_config_readq(dev, 0);
g_assert_cmpint(capacity, ==, n_size / 512);