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| author | Michael S. Tsirkin <mst@redhat.com> | 2009-06-21 19:51:18 +0300 |
|---|---|---|
| committer | Anthony Liguori <aliguori@us.ibm.com> | 2009-06-24 09:09:15 -0500 |
| commit | ffe6370c9f2a596814bf14e472910fe6ef7e001d (patch) | |
| tree | a8eae458eecbafcfffa07bb196839ea2c37cbafe /hw/virtio-net.c | |
| parent | 566e2d3e880c5fba6342b78b2aedf04427e18237 (diff) | |
| download | qemu-ffe6370c9f2a596814bf14e472910fe6ef7e001d.tar.gz qemu-ffe6370c9f2a596814bf14e472910fe6ef7e001d.tar.bz2 qemu-ffe6370c9f2a596814bf14e472910fe6ef7e001d.zip | |
qemu/net: flag to control the number of vectors a nic has
Add an option to specify the number of MSI-X vectors for PCI NIC cards. This
can also be used to disable MSI-X, for compatibility with old qemu. This
option currently only affects virtio cards.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Diffstat (limited to 'hw/virtio-net.c')
| -rw-r--r-- | hw/virtio-net.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/hw/virtio-net.c b/hw/virtio-net.c index 29a1272feb..7a7eafe903 100644 --- a/hw/virtio-net.c +++ b/hw/virtio-net.c @@ -745,7 +745,10 @@ VirtIODevice *virtio_net_init(DeviceState *dev) n->mac_table.macs = qemu_mallocz(MAC_TABLE_ENTRIES * ETH_ALEN); n->vlans = qemu_mallocz(MAX_VLAN >> 3); - n->vdev.nvectors = 3; + if (dev->nd->nvectors == NIC_NVECTORS_UNSPECIFIED) + n->vdev.nvectors = 3; + else + n->vdev.nvectors = dev->nd->nvectors; register_savevm("virtio-net", virtio_net_id++, VIRTIO_NET_VM_VERSION, virtio_net_save, virtio_net_load, n); |