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authorSridhar Samudrala <sri@us.ibm.com>2009-10-22 17:43:49 +0100
committerAnthony Liguori <aliguori@us.ibm.com>2009-10-27 12:29:04 -0500
commit6c9f58ba3b79202655e6156eb1dab3a2d2e0b51e (patch)
tree02fb37853acae12f80ea22239d9d12e94d1c04f8 /hw/virtio-net.c
parent1d41b0c1ec66d38355a1e76c29dd2200433335f6 (diff)
downloadfocaccia-qemu-6c9f58ba3b79202655e6156eb1dab3a2d2e0b51e.tar.gz
focaccia-qemu-6c9f58ba3b79202655e6156eb1dab3a2d2e0b51e.zip
Enable UFO on virtio-net and tap devices
Enable UFO on the host tap device if supported and allow setting UFO
on virtio-net in the guest.

Signed-off-by: Sridhar Samudrala <sri@us.ibm.com>
Signed-off-by: Mark McLoughlin <markmc@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Diffstat (limited to 'hw/virtio-net.c')
-rw-r--r--hw/virtio-net.c11
1 files changed, 9 insertions, 2 deletions
diff --git a/hw/virtio-net.c b/hw/virtio-net.c
index 064ec2e609..bfe1366c5e 100644
--- a/hw/virtio-net.c
+++ b/hw/virtio-net.c
@@ -157,6 +157,11 @@ static uint32_t virtio_net_get_features(VirtIODevice *vdev)
         features |= (1 << VIRTIO_NET_F_GUEST_TSO4);
         features |= (1 << VIRTIO_NET_F_GUEST_TSO6);
         features |= (1 << VIRTIO_NET_F_GUEST_ECN);
+
+        if (tap_has_ufo(n->vc->peer)) {
+            features |= (1 << VIRTIO_NET_F_GUEST_UFO);
+            features |= (1 << VIRTIO_NET_F_HOST_UFO);
+        }
     }
 
     return features;
@@ -188,7 +193,8 @@ static void virtio_net_set_features(VirtIODevice *vdev, uint32_t features)
                         (features >> VIRTIO_NET_F_GUEST_CSUM) & 1,
                         (features >> VIRTIO_NET_F_GUEST_TSO4) & 1,
                         (features >> VIRTIO_NET_F_GUEST_TSO6) & 1,
-                        (features >> VIRTIO_NET_F_GUEST_ECN)  & 1);
+                        (features >> VIRTIO_NET_F_GUEST_ECN)  & 1,
+                        (features >> VIRTIO_NET_F_GUEST_UFO)  & 1);
     }
 }
 
@@ -748,7 +754,8 @@ static int virtio_net_load(QEMUFile *f, void *opaque, int version_id)
                             (n->vdev.features >> VIRTIO_NET_F_GUEST_CSUM) & 1,
                             (n->vdev.features >> VIRTIO_NET_F_GUEST_TSO4) & 1,
                             (n->vdev.features >> VIRTIO_NET_F_GUEST_TSO6) & 1,
-                            (n->vdev.features >> VIRTIO_NET_F_GUEST_ECN)  & 1);
+                            (n->vdev.features >> VIRTIO_NET_F_GUEST_ECN)  & 1,
+                            (n->vdev.features >> VIRTIO_NET_F_GUEST_UFO)  & 1);
         }
     }