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| author | Tom Herbert <tom@herbertland.com> | 2016-05-18 19:06:23 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2016-05-21 01:03:17 +0300 |
| commit | b8921ca83eed2496108ee308e9a41c5084089680 (patch) | |
| tree | 9400ae3ef96f992095d518f057b0d6db970f90ee /net/ipv6 | |
| parent | 815d22e55b0eba3bfb8f0ba532ce9ae364fee556 (diff) | |
| download | linux-b8921ca83eed2496108ee308e9a41c5084089680.tar.xz | |
ip4ip6: 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')
| -rw-r--r-- | net/ipv6/ip6_offload.c | 33 | ||||
| -rw-r--r-- | net/ipv6/ip6_tunnel.c | 5 |
2 files changed, 37 insertions, 1 deletions
diff --git a/net/ipv6/ip6_offload.c b/net/ipv6/ip6_offload.c index 332d6a03f182..22e90e56b5a9 100644 --- a/net/ipv6/ip6_offload.c +++ b/net/ipv6/ip6_offload.c @@ -16,6 +16,7 @@ #include <net/protocol.h> #include <net/ipv6.h> +#include <net/inet_common.h> #include "ip6_offload.h" @@ -268,6 +269,21 @@ static struct sk_buff **sit_ip6ip6_gro_receive(struct sk_buff **head, return ipv6_gro_receive(head, skb); } +static struct sk_buff **ip4ip6_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; + } + + NAPI_GRO_CB(skb)->encap_mark = 1; + + return inet_gro_receive(head, skb); +} + static int ipv6_gro_complete(struct sk_buff *skb, int nhoff) { const struct net_offload *ops; @@ -307,6 +323,13 @@ static int ip6ip6_gro_complete(struct sk_buff *skb, int nhoff) return ipv6_gro_complete(skb, nhoff); } +static int ip4ip6_gro_complete(struct sk_buff *skb, int nhoff) +{ + skb->encapsulation = 1; + skb_shinfo(skb)->gso_type |= SKB_GSO_IPXIP6; + return inet_gro_complete(skb, nhoff); +} + static struct packet_offload ipv6_packet_offload __read_mostly = { .type = cpu_to_be16(ETH_P_IPV6), .callbacks = { @@ -324,6 +347,14 @@ static const struct net_offload sit_offload = { }, }; +static const struct net_offload ip4ip6_offload = { + .callbacks = { + .gso_segment = inet_gso_segment, + .gro_receive = ip4ip6_gro_receive, + .gro_complete = ip4ip6_gro_complete, + }, +}; + static const struct net_offload ip6ip6_offload = { .callbacks = { .gso_segment = ipv6_gso_segment, @@ -331,7 +362,6 @@ static const struct net_offload ip6ip6_offload = { .gro_complete = ip6ip6_gro_complete, }, }; - static int __init ipv6_offload_init(void) { @@ -344,6 +374,7 @@ static int __init ipv6_offload_init(void) inet_add_offload(&sit_offload, IPPROTO_IPV6); inet6_add_offload(&ip6ip6_offload, IPPROTO_IPV6); + inet6_add_offload(&ip4ip6_offload, IPPROTO_IPIP); return 0; } diff --git a/net/ipv6/ip6_tunnel.c b/net/ipv6/ip6_tunnel.c index d26d2269abec..823dad1e631b 100644 --- a/net/ipv6/ip6_tunnel.c +++ b/net/ipv6/ip6_tunnel.c @@ -1188,6 +1188,11 @@ ip4ip6_tnl_xmit(struct sk_buff *skb, struct net_device *dev) if (t->parms.flags & IP6_TNL_F_USE_ORIG_FWMARK) fl6.flowi6_mark = skb->mark; + if (iptunnel_handle_offloads(skb, SKB_GSO_IPXIP6)) + return -1; + + skb_set_inner_ipproto(skb, IPPROTO_IPIP); + err = ip6_tnl_xmit(skb, dev, dsfield, &fl6, encap_limit, &mtu, IPPROTO_IPIP); if (err != 0) { |