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authorTom Herbert <tom@herbertland.com>2016-05-18 18:06:22 +0200
committerDavid S. Miller <davem@davemloft.net>2016-05-21 00:03:17 +0200
commit815d22e55b0eba3bfb8f0ba532ce9ae364fee556 (patch)
treeca22cbfb6a5cc83129b0a0e8a19c3e42e0824bc7 /net/ipv6/ip6_offload.c
parentipv6: Set features for IPv6 tunnels (diff)
downloadlinux-815d22e55b0eba3bfb8f0ba532ce9ae364fee556.tar.xz
linux-815d22e55b0eba3bfb8f0ba532ce9ae364fee556.zip
ip6ip6: Support for GSO/GRO
Signed-off-by: Tom Herbert <tom@herbertland.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv6/ip6_offload.c')
-rw-r--r--net/ipv6/ip6_offload.c24
1 files changed, 21 insertions, 3 deletions
diff --git a/net/ipv6/ip6_offload.c b/net/ipv6/ip6_offload.c
index 787e55f4796c..332d6a03f182 100644
--- a/net/ipv6/ip6_offload.c
+++ b/net/ipv6/ip6_offload.c
@@ -253,9 +253,11 @@ out:
return pp;
}
-static struct sk_buff **sit_gro_receive(struct sk_buff **head,
- struct sk_buff *skb)
+static struct sk_buff **sit_ip6ip6_gro_receive(struct sk_buff **head,
+ struct sk_buff *skb)
{
+ /* Common GRO receive for SIT and IP6IP6 */
+
if (NAPI_GRO_CB(skb)->encap_mark) {
NAPI_GRO_CB(skb)->flush = 1;
return NULL;
@@ -298,6 +300,13 @@ static int sit_gro_complete(struct sk_buff *skb, int nhoff)
return ipv6_gro_complete(skb, nhoff);
}
+static int ip6ip6_gro_complete(struct sk_buff *skb, int nhoff)
+{
+ skb->encapsulation = 1;
+ skb_shinfo(skb)->gso_type |= SKB_GSO_IPXIP6;
+ return ipv6_gro_complete(skb, nhoff);
+}
+
static struct packet_offload ipv6_packet_offload __read_mostly = {
.type = cpu_to_be16(ETH_P_IPV6),
.callbacks = {
@@ -310,11 +319,19 @@ static struct packet_offload ipv6_packet_offload __read_mostly = {
static const struct net_offload sit_offload = {
.callbacks = {
.gso_segment = ipv6_gso_segment,
- .gro_receive = sit_gro_receive,
+ .gro_receive = sit_ip6ip6_gro_receive,
.gro_complete = sit_gro_complete,
},
};
+static const struct net_offload ip6ip6_offload = {
+ .callbacks = {
+ .gso_segment = ipv6_gso_segment,
+ .gro_receive = sit_ip6ip6_gro_receive,
+ .gro_complete = ip6ip6_gro_complete,
+ },
+};
+
static int __init ipv6_offload_init(void)
{
@@ -326,6 +343,7 @@ static int __init ipv6_offload_init(void)
dev_add_offload(&ipv6_packet_offload);
inet_add_offload(&sit_offload, IPPROTO_IPV6);
+ inet6_add_offload(&ip6ip6_offload, IPPROTO_IPV6);
return 0;
}