Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6

[pandora-kernel.git] / include / linux / virtio_net.h

diff --git a/include/linux/virtio_net.h b/include/linux/virtio_net.h
index ae469ae..38c0571 100644 (file)
--- a/include/linux/virtio_net.h
+++ b/include/linux/virtio_net.h
@@ -5,32 +5,41 @@
 /* The ID for virtio_net */
 #define VIRTIO_ID_NET  1
 
-/* The bitmap of config for virtio net */
-#define VIRTIO_CONFIG_NET_F    0x40
-#define VIRTIO_NET_F_NO_CSUM   0
-#define VIRTIO_NET_F_TSO4      1
-#define VIRTIO_NET_F_UFO       2
-#define VIRTIO_NET_F_TSO4_ECN  3
-#define VIRTIO_NET_F_TSO6      4
+/* 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. */
 
-/* The config defining mac address. */
-#define VIRTIO_CONFIG_NET_MAC_F        0x41
+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;
+       __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)
-/* FIXME: Do we need this?  If they said they can handle ECN, do they care? */
-#define VIRTIO_NET_HDR_GSO_TCPV4_ECN   2       // GSO frame, IPv4 TCP w/ ECN
 #define VIRTIO_NET_HDR_GSO_UDP         3       // GSO frame, IPv4 UDP (UFO)
 #define VIRTIO_NET_HDR_GSO_TCPV6       4       // GSO frame, IPv6 TCP
-      __u8 gso_type;
-      __u16 gso_size;
-      __u16 csum_start;
-      __u16 csum_offset;
+#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 */
 };
 #endif /* _LINUX_VIRTIO_NET_H */