Sridhar Samudrala wrote:
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@xxxxxxxxxx>
diff --git a/hw/virtio-net.c b/hw/virtio-net.c
index 3c77b99..8a53e27 100644
--- a/hw/virtio-net.c
+++ b/hw/virtio-net.c
@@ -134,7 +134,8 @@ static uint32_t virtio_net_get_features(VirtIODevice *vdev)
features |= (1 << VIRTIO_NET_F_HOST_TSO6);
features |= (1 << VIRTIO_NET_F_HOST_ECN);
features |= (1 << VIRTIO_NET_F_MRG_RXBUF);
- /* Kernel can't actually handle UFO in software currently. */
+ // features |= (1 << VIRTIO_NET_F_HOST_UFO);
+ features |= (1 << VIRTIO_NET_F_GUEST_UFO);
Where are these defined?
@@ -990,8 +990,13 @@ static int tap_probe_vnet_hdr(int fd)
}
#ifdef TUNSETOFFLOAD
+
+#ifndef TUN_F_UFO
+#define TUN_F_UFO 0x10
+#endif
+
Should just use the definition in the kernel header.
--
Do not meddle in the internals of kernels, for they are subtle and quick to panic.
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