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-rw-r--r--tests/libqos/virtio-pci.c1
-rw-r--r--tests/libqos/virtio.c27
-rw-r--r--tests/libqos/virtio.h5
-rw-r--r--tests/virtio-blk-test.c124
4 files changed, 156 insertions, 1 deletions
diff --git a/tests/libqos/virtio-pci.c b/tests/libqos/virtio-pci.c
index ab28717305..788ebaff46 100644
--- a/tests/libqos/virtio-pci.c
+++ b/tests/libqos/virtio-pci.c
@@ -203,6 +203,7 @@ static QVirtQueue *qvirtio_pci_virtqueue_setup(QVirtioDevice *d,
vqpci->vq.num_free = vqpci->vq.size;
vqpci->vq.align = QVIRTIO_PCI_ALIGN;
vqpci->vq.indirect = (feat & QVIRTIO_F_RING_INDIRECT_DESC) != 0;
+ vqpci->vq.event = (feat & QVIRTIO_F_RING_EVENT_IDX) != 0;
vqpci->msix_entry = -1;
vqpci->msix_addr = 0;
diff --git a/tests/libqos/virtio.c b/tests/libqos/virtio.c
index 16eaf79425..128dbd0e9a 100644
--- a/tests/libqos/virtio.c
+++ b/tests/libqos/virtio.c
@@ -124,9 +124,13 @@ void qvring_init(const QGuestAllocator *alloc, QVirtQueue *vq, uint64_t addr)
writew(vq->avail, 0);
/* vq->avail->idx */
writew(vq->avail + 2, 0);
+ /* vq->avail->used_event */
+ writew(vq->avail + 4 + (2 * vq->size), 0);
/* vq->used->flags */
writew(vq->used, 0);
+ /* vq->used->avail_event */
+ writew(vq->used+2+(sizeof(struct QVRingUsedElem)*vq->size), 0);
}
QVRingIndirectDesc *qvring_indirect_desc_setup(QVirtioDevice *d,
@@ -222,11 +226,32 @@ void qvirtqueue_kick(const QVirtioBus *bus, QVirtioDevice *d, QVirtQueue *vq,
{
/* vq->avail->idx */
uint16_t idx = readl(vq->avail + 2);
+ /* vq->used->flags */
+ uint16_t flags;
+ /* vq->used->avail_event */
+ uint16_t avail_event;
/* vq->avail->ring[idx % vq->size] */
writel(vq->avail + 4 + (2 * (idx % vq->size)), free_head);
/* vq->avail->idx */
writel(vq->avail + 2, idx + 1);
- bus->virtqueue_kick(d, vq);
+ /* Must read after idx is updated */
+ flags = readw(vq->avail);
+ avail_event = readw(vq->used + 4 +
+ (sizeof(struct QVRingUsedElem) * vq->size));
+
+ /* < 1 because we add elements to avail queue one by one */
+ if ((flags & QVRING_USED_F_NO_NOTIFY) == 0 &&
+ (!vq->event || (uint16_t)(idx-avail_event) < 1)) {
+ bus->virtqueue_kick(d, vq);
+ }
+}
+
+void qvirtqueue_set_used_event(QVirtQueue *vq, uint16_t idx)
+{
+ g_assert(vq->event);
+
+ /* vq->avail->used_event */
+ writew(vq->avail + 4 + (2 * vq->size), idx);
}
diff --git a/tests/libqos/virtio.h b/tests/libqos/virtio.h
index cebccd21d1..70b3376360 100644
--- a/tests/libqos/virtio.h
+++ b/tests/libqos/virtio.h
@@ -26,6 +26,7 @@
#define QVIRTIO_F_ANY_LAYOUT 0x08000000
#define QVIRTIO_F_RING_INDIRECT_DESC 0x10000000
#define QVIRTIO_F_RING_EVENT_IDX 0x20000000
+#define QVIRTIO_F_BAD_FEATURE 0x40000000
#define QVRING_DESC_F_NEXT 0x1
#define QVRING_DESC_F_WRITE 0x2
@@ -57,6 +58,7 @@ typedef struct QVRingAvail {
uint16_t flags;
uint16_t idx;
uint16_t ring[0]; /* This is an array of uint16_t */
+ uint16_t used_event;
} QVRingAvail;
typedef struct QVRingUsedElem {
@@ -68,6 +70,7 @@ typedef struct QVRingUsed {
uint16_t flags;
uint16_t idx;
QVRingUsedElem ring[0]; /* This is an array of QVRingUsedElem structs */
+ uint16_t avail_event;
} QVRingUsed;
typedef struct QVirtQueue {
@@ -80,6 +83,7 @@ typedef struct QVirtQueue {
uint32_t num_free;
uint32_t align;
bool indirect;
+ bool event;
} QVirtQueue;
typedef struct QVRingIndirectDesc {
@@ -174,4 +178,5 @@ uint32_t qvirtqueue_add_indirect(QVirtQueue *vq, QVRingIndirectDesc *indirect);
void qvirtqueue_kick(const QVirtioBus *bus, QVirtioDevice *d, QVirtQueue *vq,
uint32_t free_head);
+void qvirtqueue_set_used_event(QVirtQueue *vq, uint16_t idx);
#endif
diff --git a/tests/virtio-blk-test.c b/tests/virtio-blk-test.c
index 0100aaa950..588666cff1 100644
--- a/tests/virtio-blk-test.c
+++ b/tests/virtio-blk-test.c
@@ -496,6 +496,129 @@ static void pci_msix(void)
qvirtqueue_kick(&qvirtio_pci, &dev->vdev, &vqpci->vq, free_head);
+
+ g_assert(qvirtio_wait_queue_isr(&qvirtio_pci, &dev->vdev, &vqpci->vq,
+ QVIRTIO_BLK_TIMEOUT));
+
+ status = readb(req_addr + 528);
+ g_assert_cmpint(status, ==, 0);
+
+ data = g_malloc0(512);
+ memread(req_addr + 16, data, 512);
+ g_assert_cmpstr(data, ==, "TEST");
+ g_free(data);
+
+ guest_free(alloc, req_addr);
+
+ /* End test */
+ guest_free(alloc, (uint64_t)vqpci->vq.desc);
+ qpci_msix_disable(dev->pdev);
+ qvirtio_pci_device_disable(dev);
+ g_free(dev);
+ test_end();
+}
+
+static void pci_idx(void)
+{
+ QVirtioPCIDevice *dev;
+ QPCIBus *bus;
+ QVirtQueuePCI *vqpci;
+ QGuestAllocator *alloc;
+ QVirtioBlkReq req;
+ void *addr;
+ uint64_t req_addr;
+ uint64_t capacity;
+ uint32_t features;
+ uint32_t free_head;
+ uint8_t status;
+ char *data;
+
+ bus = test_start();
+ alloc = pc_alloc_init();
+
+ dev = virtio_blk_init(bus);
+ qpci_msix_enable(dev->pdev);
+
+ qvirtio_pci_set_msix_configuration_vector(dev, alloc, 0);
+
+ /* MSI-X is enabled */
+ addr = dev->addr + QVIRTIO_DEVICE_SPECIFIC_MSIX;
+
+ capacity = qvirtio_config_readq(&qvirtio_pci, &dev->vdev, addr);
+ g_assert_cmpint(capacity, ==, TEST_IMAGE_SIZE / 512);
+
+ features = qvirtio_get_features(&qvirtio_pci, &dev->vdev);
+ features = features & ~(QVIRTIO_F_BAD_FEATURE |
+ QVIRTIO_F_RING_INDIRECT_DESC |
+ QVIRTIO_F_NOTIFY_ON_EMPTY | QVIRTIO_BLK_F_SCSI);
+ qvirtio_set_features(&qvirtio_pci, &dev->vdev, features);
+
+ vqpci = (QVirtQueuePCI *)qvirtqueue_setup(&qvirtio_pci, &dev->vdev,
+ alloc, 0);
+ qvirtqueue_pci_msix_setup(dev, vqpci, alloc, 1);
+
+ qvirtio_set_driver_ok(&qvirtio_pci, &dev->vdev);
+
+ /* Write request */
+ req.type = QVIRTIO_BLK_T_OUT;
+ req.ioprio = 1;
+ req.sector = 0;
+ req.data = g_malloc0(512);
+ strcpy(req.data, "TEST");
+
+ req_addr = virtio_blk_request(alloc, &req, 512);
+
+ g_free(req.data);
+
+ free_head = qvirtqueue_add(&vqpci->vq, req_addr, 528, false, true);
+ qvirtqueue_add(&vqpci->vq, req_addr + 528, 1, true, false);
+ qvirtqueue_kick(&qvirtio_pci, &dev->vdev, &vqpci->vq, free_head);
+
+ g_assert(qvirtio_wait_queue_isr(&qvirtio_pci, &dev->vdev, &vqpci->vq,
+ QVIRTIO_BLK_TIMEOUT));
+
+ /* Write request */
+ req.type = QVIRTIO_BLK_T_OUT;
+ req.ioprio = 1;
+ req.sector = 1;
+ req.data = g_malloc0(512);
+ strcpy(req.data, "TEST");
+
+ req_addr = virtio_blk_request(alloc, &req, 512);
+
+ g_free(req.data);
+
+ /* Notify after processing the third request */
+ qvirtqueue_set_used_event(&vqpci->vq, 2);
+ free_head = qvirtqueue_add(&vqpci->vq, req_addr, 528, false, true);
+ qvirtqueue_add(&vqpci->vq, req_addr + 528, 1, true, false);
+ qvirtqueue_kick(&qvirtio_pci, &dev->vdev, &vqpci->vq, free_head);
+
+ /* No notification expected */
+ g_assert(!qvirtio_wait_queue_isr(&qvirtio_pci, &dev->vdev, &vqpci->vq,
+ QVIRTIO_BLK_TIMEOUT));
+
+ status = readb(req_addr + 528);
+ g_assert_cmpint(status, ==, 0);
+
+ guest_free(alloc, req_addr);
+
+ /* Read request */
+ req.type = QVIRTIO_BLK_T_IN;
+ req.ioprio = 1;
+ req.sector = 1;
+ req.data = g_malloc0(512);
+
+ req_addr = virtio_blk_request(alloc, &req, 512);
+
+ g_free(req.data);
+
+ free_head = qvirtqueue_add(&vqpci->vq, req_addr, 16, false, true);
+ qvirtqueue_add(&vqpci->vq, req_addr + 16, 513, true, false);
+
+ qvirtqueue_kick(&qvirtio_pci, &dev->vdev, &vqpci->vq, free_head);
+
+
g_assert(qvirtio_wait_queue_isr(&qvirtio_pci, &dev->vdev, &vqpci->vq,
QVIRTIO_BLK_TIMEOUT));
@@ -527,6 +650,7 @@ int main(int argc, char **argv)
g_test_add_func("/virtio/blk/pci/indirect", pci_indirect);
g_test_add_func("/virtio/blk/pci/config", pci_config);
g_test_add_func("/virtio/blk/pci/msix", pci_msix);
+ g_test_add_func("/virtio/blk/pci/idx", pci_idx);
ret = g_test_run();
generated by cgit v1.2.3 (git 2.26.2) at 2024-12-11 13:38:22 +0000