uapi/linux/virtio_net.h: Added USO types.

Added new GSO type for USO: VIRTIO_NET_HDR_GSO_UDP_L4.
Feature VIRTIO_NET_F_HOST_USO allows to enable NETIF_F_GSO_UDP_L4.
Separated VIRTIO_NET_F_GUEST_USO4 & VIRTIO_NET_F_GUEST_USO6 features
required for Windows guests.

Signed-off-by: Andrew Melnychenko <andrew@daynix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/include/uapi/linux/virtio_net.h b/include/uapi/linux/virtio_net.h
index 6cb842ea8979a1cf629a5519495e3432ece37ac4..b4062bed186a66f57c486a85532b15a0825c807e 100644 (file)
--- a/include/uapi/linux/virtio_net.h
+++ b/include/uapi/linux/virtio_net.h
@@ -57,6 +57,9 @@
                                         * Steering */
 #define VIRTIO_NET_F_CTRL_MAC_ADDR 23  /* Set MAC address */
 #define VIRTIO_NET_F_NOTF_COAL 53      /* Device supports notifications coalescing */
+#define VIRTIO_NET_F_GUEST_USO4        54      /* Guest can handle USOv4 in. */
+#define VIRTIO_NET_F_GUEST_USO6        55      /* Guest can handle USOv6 in. */
+#define VIRTIO_NET_F_HOST_USO  56      /* Host can handle USO in. */
 #define VIRTIO_NET_F_HASH_REPORT  57   /* Supports hash report */
 #define VIRTIO_NET_F_RSS         60    /* Supports RSS RX steering */
 #define VIRTIO_NET_F_RSC_EXT     61    /* extended coalescing info */
@@ -130,6 +133,7 @@ struct virtio_net_hdr_v1 {
 #define VIRTIO_NET_HDR_GSO_TCPV4       1       /* GSO frame, IPv4 TCP (TSO) */
 #define VIRTIO_NET_HDR_GSO_UDP         3       /* GSO frame, IPv4 UDP (UFO) */
 #define VIRTIO_NET_HDR_GSO_TCPV6       4       /* GSO frame, IPv6 TCP */
+#define VIRTIO_NET_HDR_GSO_UDP_L4      5       /* GSO frame, IPv4& IPv6 UDP (USO) */
 #define VIRTIO_NET_HDR_GSO_ECN         0x80    /* TCP has ECN set */
        __u8 gso_type;
        __virtio16 hdr_len;     /* Ethernet + IP + tcp/udp hdrs */