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-rw-r--r--drivers/net/virtio_net.c3
-rw-r--r--include/linux/virtio_net.h11
2 files changed, 8 insertions, 6 deletions
diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c
index 7b0059f..3492ae0 100644
--- a/drivers/net/virtio_net.c
+++ b/drivers/net/virtio_net.c
@@ -242,6 +242,7 @@ static int start_xmit(struct sk_buff *skb, struct net_device *dev)
}
if (skb_is_gso(skb)) {
+ hdr->hdr_len = skb_transport_header(skb) - skb->data;
hdr->gso_size = skb_shinfo(skb)->gso_size;
if (skb_shinfo(skb)->gso_type & SKB_GSO_TCP_ECN)
hdr->gso_type = VIRTIO_NET_HDR_GSO_TCPV4_ECN;
@@ -255,7 +256,7 @@ static int start_xmit(struct sk_buff *skb, struct net_device *dev)
BUG();
} else {
hdr->gso_type = VIRTIO_NET_HDR_GSO_NONE;
- hdr->gso_size = 0;
+ hdr->gso_size = hdr->hdr_len = 0;
}
vnet_hdr_to_sg(sg, skb);
diff --git a/include/linux/virtio_net.h b/include/linux/virtio_net.h
index 6e8fdfe..1456f7b 100644
--- a/include/linux/virtio_net.h
+++ b/include/linux/virtio_net.h
@@ -24,16 +24,17 @@ struct virtio_net_config
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;
+ __u8 gso_type;
+ __u16 hdr_len; /* Ethernet + IP + tcp/udp hdrs */
+ __u16 gso_size; /* Bytes to append to gso_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 */