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authorEyal Birger <eyal.birger@gmail.com>2021-01-06 08:10:46 +0200
committerSteffen Klassert <steffen.klassert@secunet.com>2021-01-08 12:59:34 +0100
commit18f976960bca0c32c5a072a2e003a99c156268bc (patch)
treef816e9e14355d7711f9063f0de1130bbceefd7f5 /net/xfrm
parentede71cae72855f8d6f6268510895210adc317666 (diff)
xfrm: interface: enable TSO on xfrm interfaces
Underlying xfrm output supports gso packets. Declare support in hw_features and adapt the xmit MTU check to pass GSO packets. Signed-off-by: Eyal Birger <eyal.birger@gmail.com> Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Diffstat (limited to 'net/xfrm')
-rw-r--r--net/xfrm/xfrm_interface.c10
1 files changed, 9 insertions, 1 deletions
diff --git a/net/xfrm/xfrm_interface.c b/net/xfrm/xfrm_interface.c
index 697cdcfbb5e1..495b1f5c979b 100644
--- a/net/xfrm/xfrm_interface.c
+++ b/net/xfrm/xfrm_interface.c
@@ -296,7 +296,8 @@ xfrmi_xmit2(struct sk_buff *skb, struct net_device *dev, struct flowi *fl)
}
mtu = dst_mtu(dst);
- if (skb->len > mtu) {
+ if ((!skb_is_gso(skb) && skb->len > mtu) ||
+ (skb_is_gso(skb) && !skb_gso_validate_network_len(skb, mtu))) {
skb_dst_update_pmtu_no_confirm(skb, mtu);
if (skb->protocol == htons(ETH_P_IPV6)) {
@@ -564,6 +565,11 @@ static void xfrmi_dev_setup(struct net_device *dev)
eth_broadcast_addr(dev->broadcast);
}
+#define XFRMI_FEATURES (NETIF_F_SG | \
+ NETIF_F_FRAGLIST | \
+ NETIF_F_GSO_SOFTWARE | \
+ NETIF_F_HW_CSUM)
+
static int xfrmi_dev_init(struct net_device *dev)
{
struct xfrm_if *xi = netdev_priv(dev);
@@ -581,6 +587,8 @@ static int xfrmi_dev_init(struct net_device *dev)
}
dev->features |= NETIF_F_LLTX;
+ dev->features |= XFRMI_FEATURES;
+ dev->hw_features |= XFRMI_FEATURES;
if (phydev) {
dev->needed_headroom = phydev->needed_headroom;