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virtio-net: Advertise UDP tunnel GSO support by default

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Allow bidirectional aggregated traffic for UDP encapsulated flows.

Add the needed compatibility entries to avoid migration issues
vs older QEMU instances.

Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Tested-by: Lei Yang <leiyang@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Message-Id: <9c500fbcd2cf29afd1826b1ac906f9d5beac3601.1760104079.git.pabeni@redhat.com>
This commit is contained in:
Paolo Abeni 2025-10-10 16:12:57 +02:00 • committed by Michael S. Tsirkin
parent ccf166d89d
commit 1c79ab6937
2 changed files with 8 additions and 4 deletions
Download patch file Download diff file Expand all files Collapse all files

4
hw/core/machine.c
View file

@ -40,6 +40,10 @@
GlobalProperty hw_compat_10_1[] = {
{ TYPE_ACPI_GED, "x-has-hest-addr", "false" },
{ TYPE_VIRTIO_NET, "host_tunnel", "off" },
{ TYPE_VIRTIO_NET, "host_tunnel_csum", "off" },
{ TYPE_VIRTIO_NET, "guest_tunnel", "off" },
{ TYPE_VIRTIO_NET, "guest_tunnel_csum", "off" },
};
const size_t hw_compat_10_1_len = G_N_ELEMENTS(hw_compat_10_1);

8
hw/net/virtio-net.c
View file

@ -4299,19 +4299,19 @@ static const Property virtio_net_properties[] = {
VIRTIO_DEFINE_PROP_FEATURE("host_tunnel", VirtIONet,
host_features_ex,
VIRTIO_NET_F_HOST_UDP_TUNNEL_GSO,
false),
true),
VIRTIO_DEFINE_PROP_FEATURE("host_tunnel_csum", VirtIONet,
host_features_ex,
VIRTIO_NET_F_HOST_UDP_TUNNEL_GSO_CSUM,
false),
true),
VIRTIO_DEFINE_PROP_FEATURE("guest_tunnel", VirtIONet,
host_features_ex,
VIRTIO_NET_F_GUEST_UDP_TUNNEL_GSO,
false),
true),
VIRTIO_DEFINE_PROP_FEATURE("guest_tunnel_csum", VirtIONet,
host_features_ex,
VIRTIO_NET_F_GUEST_UDP_TUNNEL_GSO_CSUM,
false),
true),
};
static void virtio_net_class_init(ObjectClass *klass, const void *data)