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authorPaul Durrant <Paul.Durrant@citrix.com>2013-10-16 17:50:32 +0100
committerDavid S. Miller <davem@davemloft.net>2013-10-17 15:35:17 -0400
commit82cada22a0bbec6a7afb573ef5fb6c512aaa2739 (patch)
tree509d5a4bea1dc636885572a4c5d85e9e7bbce32b /drivers/net/xen-netback/common.h
parenta94685876859be30446357db6d6c4a9c951305b4 (diff)
xen-netback: enable IPv6 TCP GSO to the guest
This patch adds code to handle SKB_GSO_TCPV6 skbs and construct appropriate extra or prefix segments to pass the large packet to the frontend. New xenstore flags, feature-gso-tcpv6 and feature-gso-tcpv6-prefix, are sampled to determine if the frontend is capable of handling such packets. Signed-off-by: Paul Durrant <paul.durrant@citrix.com> Cc: Wei Liu <wei.liu2@citrix.com> Cc: David Vrabel <david.vrabel@citrix.com> Cc: Ian Campbell <ian.campbell@citrix.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/xen-netback/common.h')
-rw-r--r--drivers/net/xen-netback/common.h9
1 files changed, 7 insertions, 2 deletions
diff --git a/drivers/net/xen-netback/common.h b/drivers/net/xen-netback/common.h
index b4a9a3c844b2..55b8dec86233 100644
--- a/drivers/net/xen-netback/common.h
+++ b/drivers/net/xen-netback/common.h
@@ -87,9 +87,13 @@ struct pending_tx_info {
struct xenvif_rx_meta {
int id;
int size;
+ int gso_type;
int gso_size;
};
+#define GSO_BIT(type) \
+ (1 << XEN_NETIF_GSO_TYPE_ ## type)
+
/* Discriminate from any valid pending_idx value. */
#define INVALID_PENDING_IDX 0xFFFF
@@ -150,9 +154,10 @@ struct xenvif {
u8 fe_dev_addr[6];
/* Frontend feature information. */
+ int gso_mask;
+ int gso_prefix_mask;
+
u8 can_sg:1;
- u8 gso:1;
- u8 gso_prefix:1;
u8 ip_csum:1;
u8 ipv6_csum:1;