Re: [net-next RFC V5 5/5] virtio_net: support negotiating the number of queues through ctrl vq
flat view
From: Sasha Levin <hidden>
Date: 2012-07-05 12:50:57
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kvm, lkml, virtualization
On Thu, 2012-07-05 at 18:29 +0800, Jason Wang wrote:
quoted hunk ↗ jump to hunk
@@ -1387,6 +1404,10 @@ static int virtnet_probe(struct virtio_device *vdev) if (virtio_has_feature(vdev, VIRTIO_NET_F_CTRL_VQ)) vi->has_cvq = true; + /* Use single tx/rx queue pair as default */ + vi->num_queue_pairs = 1; + vi->total_queue_pairs = num_queue_pairs;
The code is using this "default" even if the amount of queue pairs it wants was specified during initialization. This basically limits any device to use 1 pair when starting up.