diff options
| author | Xuan Zhuo <xuanzhuo@linux.alibaba.com> | 2022-08-01 14:38:21 +0800 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2022-08-11 04:06:38 -0400 |
| commit | da802961832f9852886304290135457519815497 (patch) | |
| tree | 15d1e1ab7b0387b95bfc5931a98f3ff12e77f9fc /drivers/virtio/virtio_pci_modern.c | |
| parent | 0b6fd46ec5f5720b76cbb01300ed9f7b7c6365c4 (diff) | |
virtio: record the maximum queue num supported by the device.
virtio-net can display the maximum (supported by hardware) ring size in
ethtool -g eth0.
When the subsequent patch implements vring reset, it can judge whether
the ring size passed by the driver is legal based on this.
Signed-off-by: Xuan Zhuo <xuanzhuo@linux.alibaba.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Message-Id: <20220801063902.129329-2-xuanzhuo@linux.alibaba.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'drivers/virtio/virtio_pci_modern.c')
| -rw-r--r-- | drivers/virtio/virtio_pci_modern.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/virtio/virtio_pci_modern.c b/drivers/virtio/virtio_pci_modern.c index 623906b4996c..e7e0b8c850f6 100644 --- a/drivers/virtio/virtio_pci_modern.c +++ b/drivers/virtio/virtio_pci_modern.c @@ -218,6 +218,8 @@ static struct virtqueue *setup_vq(struct virtio_pci_device *vp_dev, if (!vq) return ERR_PTR(-ENOMEM); + vq->num_max = num; + /* activate the queue */ vp_modern_set_queue_size(mdev, index, virtqueue_get_vring_size(vq)); vp_modern_queue_address(mdev, index, virtqueue_get_desc_addr(vq), |