diff options
Diffstat (limited to 'src/drivers/bus')
| -rw-r--r-- | src/drivers/bus/virtio-pci.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/src/drivers/bus/virtio-pci.c b/src/drivers/bus/virtio-pci.c index 3311595fb..1fcf9bae0 100644 --- a/src/drivers/bus/virtio-pci.c +++ b/src/drivers/bus/virtio-pci.c @@ -358,12 +358,18 @@ int vpm_find_vqs(struct virtio_pci_modern_device *vdev, return -EINVAL; } + if (size > MAX_QUEUE_NUM) { + /* iPXE networking tends to be not perf critical so there's no + * need to accept large queue sizes. + */ + size = MAX_QUEUE_NUM; + } + vq = &vqs[i]; vq->queue_index = i; /* get offset of notification word for this vq */ off = vpm_ioread16(vdev, &vdev->common, COMMON_OFFSET(queue_notify_off)); - vq->vring.num = size; vring_init(&vq->vring, size, (unsigned char *)vq->queue); |