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authorIlya Lesokhin <ilyal@mellanox.com>2018-04-30 10:16:12 +0300
committerDavid S. Miller <davem@davemloft.net>2018-05-01 09:42:46 -0400
commitebf4e808fa0b22e551baf862e17c26c325c068f4 (patch)
treeb2e673a3847e61d60a6ce2e50860bdba771202e5 /net
parent08303c189581c985e60f588ad92a041e46b6e307 (diff)
downloadlinux-ebf4e808fa0b22e551baf862e17c26c325c068f4.tar.bz2
net: Add Software fallback infrastructure for socket dependent offloads
With socket dependent offloads we rely on the netdev to transform the transmitted packets before sending them to the wire. When a packet from an offloaded socket is rerouted to a different device we need to detect it and do the transformation in software. Signed-off-by: Ilya Lesokhin <ilyal@mellanox.com> Signed-off-by: Boris Pismenny <borisp@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
-rw-r--r--net/Kconfig3
-rw-r--r--net/core/dev.c4
2 files changed, 7 insertions, 0 deletions
diff --git a/net/Kconfig b/net/Kconfig
index 6fa1a4493b8c..b62089fb1332 100644
--- a/net/Kconfig
+++ b/net/Kconfig
@@ -407,6 +407,9 @@ config GRO_CELLS
bool
default n
+config SOCK_VALIDATE_XMIT
+ bool
+
config NET_DEVLINK
tristate "Network physical/parent device Netlink interface"
help
diff --git a/net/core/dev.c b/net/core/dev.c
index e01c21a88cae..8944e1e0059d 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -3112,6 +3112,10 @@ static struct sk_buff *validate_xmit_skb(struct sk_buff *skb, struct net_device
if (unlikely(!skb))
goto out_null;
+ skb = sk_validate_xmit_skb(skb, dev);
+ if (unlikely(!skb))
+ goto out_null;
+
if (netif_needs_gso(skb, features)) {
struct sk_buff *segs;