check in the original version of dde linux26.

1 files changed, 57 insertions, 0 deletions

diff --git a/libdde_linux26/contrib/include/linux/virtio_net.h b/libdde_linux26/contrib/include/linux/virtio_net.h
new file mode 100644
index 00000000..3efa86c3
--- /dev/null
+++ b/libdde_linux26/contrib/include/linux/virtio_net.h
@@ -0,0 +1,57 @@
+#ifndef _LINUX_VIRTIO_NET_H
+#define _LINUX_VIRTIO_NET_H
+/* This header is BSD licensed so anyone can use the definitions to implement
+ * compatible drivers/servers. */
+#include <linux/types.h>
+#include <linux/virtio_config.h>
+
+/* The ID for virtio_net */
+#define VIRTIO_ID_NET	1
+
+/* The feature bitmap for virtio net */
+#define VIRTIO_NET_F_CSUM	0	/* Host handles pkts w/ partial csum */
+#define VIRTIO_NET_F_GUEST_CSUM	1	/* Guest handles pkts w/ partial csum */
+#define VIRTIO_NET_F_MAC	5	/* Host has given MAC address. */
+#define VIRTIO_NET_F_GSO	6	/* Host handles pkts w/ any GSO type */
+#define VIRTIO_NET_F_GUEST_TSO4	7	/* Guest can handle TSOv4 in. */
+#define VIRTIO_NET_F_GUEST_TSO6	8	/* Guest can handle TSOv6 in. */
+#define VIRTIO_NET_F_GUEST_ECN	9	/* Guest can handle TSO[6] w/ ECN in. */
+#define VIRTIO_NET_F_GUEST_UFO	10	/* Guest can handle UFO in. */
+#define VIRTIO_NET_F_HOST_TSO4	11	/* Host can handle TSOv4 in. */
+#define VIRTIO_NET_F_HOST_TSO6	12	/* Host can handle TSOv6 in. */
+#define VIRTIO_NET_F_HOST_ECN	13	/* Host can handle TSO[6] w/ ECN in. */
+#define VIRTIO_NET_F_HOST_UFO	14	/* Host can handle UFO in. */
+#define VIRTIO_NET_F_MRG_RXBUF	15	/* Host can merge receive buffers. */
+
+struct virtio_net_config
+{
+	/* The config defining mac address (if VIRTIO_NET_F_MAC) */
+	__u8 mac[6];
+} __attribute__((packed));
+
+/* This is the first element of the scatter-gather list.  If you don't
+ * specify GSO or CSUM features, you can simply ignore the header. */
+struct virtio_net_hdr
+{
+#define VIRTIO_NET_HDR_F_NEEDS_CSUM	1	// Use csum_start, csum_offset
+	__u8 flags;
+#define VIRTIO_NET_HDR_GSO_NONE		0	// Not a GSO frame
+#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_ECN		0x80	// TCP has ECN set
+	__u8 gso_type;
+	__u16 hdr_len;		/* Ethernet + IP + tcp/udp hdrs */
+	__u16 gso_size;		/* Bytes to append to hdr_len per frame */
+	__u16 csum_start;	/* Position to start checksumming from */
+	__u16 csum_offset;	/* Offset after that to place checksum */
+};
+
+/* This is the version of the header to use when the MRG_RXBUF
+ * feature has been negotiated. */
+struct virtio_net_hdr_mrg_rxbuf {
+	struct virtio_net_hdr hdr;
+	__u16 num_buffers;	/* Number of merged rx buffers */
+};
+
+#endif /* _LINUX_VIRTIO_NET_H */