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Merge branch 'geneve-fixes'

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Tariq Toukan says:

====================
geneve fixes

This small patchset by Gal provides bug fixes to the geneve tunnels flows.

Patch 1 fixes an incorrect value returned by the inner network header
offset helper.
Patch 2 fixes an issue inside the mlx5e tunneling flow. It 'happened' to
be harmless so far, before applying patch 1.

Series generated against:
commit d30d0e49da ("Merge tag 'net-6.10-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net")
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2024-06-10 13:18:09 +01:00
parent d029edefed 791b4089e3
commit 93792130a9
3 changed files with 10 additions and 8 deletions
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3
drivers/net/ethernet/mellanox/mlx5/core/en_main.c
View file

@ -4875,7 +4875,7 @@ static netdev_features_t mlx5e_tunnel_features_check(struct mlx5e_priv *priv,
/* Verify if UDP port is being offloaded by HW */
if (mlx5_vxlan_lookup_port(priv->mdev->vxlan, port))
return features;
return vxlan_features_check(skb, features);
#if IS_ENABLED(CONFIG_GENEVE)
/* Support Geneve offload for default UDP port */
@ -4901,7 +4901,6 @@ netdev_features_t mlx5e_features_check(struct sk_buff *skb,
struct mlx5e_priv *priv = netdev_priv(netdev);
features = vlan_features_check(skb, features);
features = vxlan_features_check(skb, features);
/* Validate if the tunneled packet is being offloaded by HW */
if (skb->encapsulation &&

10
drivers/net/geneve.c
View file

@ -815,6 +815,7 @@ static int geneve_xmit_skb(struct sk_buff *skb, struct net_device *dev,
struct geneve_dev *geneve,
const struct ip_tunnel_info *info)
{
bool inner_proto_inherit = geneve->cfg.inner_proto_inherit;
bool xnet = !net_eq(geneve->net, dev_net(geneve->dev));
struct geneve_sock *gs4 = rcu_dereference(geneve->sock4);
const struct ip_tunnel_key *key = &info->key;
@ -826,7 +827,7 @@ static int geneve_xmit_skb(struct sk_buff *skb, struct net_device *dev,
__be16 sport;
int err;
if (!skb_vlan_inet_prepare(skb))
if (!skb_vlan_inet_prepare(skb, inner_proto_inherit))
return -EINVAL;
if (!gs4)
@ -908,7 +909,7 @@ static int geneve_xmit_skb(struct sk_buff *skb, struct net_device *dev,
}
err = geneve_build_skb(&rt->dst, skb, info, xnet, sizeof(struct iphdr),
geneve->cfg.inner_proto_inherit);
inner_proto_inherit);
if (unlikely(err))
return err;
@ -925,6 +926,7 @@ static int geneve6_xmit_skb(struct sk_buff *skb, struct net_device *dev,
struct geneve_dev *geneve,
const struct ip_tunnel_info *info)
{
bool inner_proto_inherit = geneve->cfg.inner_proto_inherit;
bool xnet = !net_eq(geneve->net, dev_net(geneve->dev));
struct geneve_sock *gs6 = rcu_dereference(geneve->sock6);
const struct ip_tunnel_key *key = &info->key;
@ -935,7 +937,7 @@ static int geneve6_xmit_skb(struct sk_buff *skb, struct net_device *dev,
__be16 sport;
int err;
if (!skb_vlan_inet_prepare(skb))
if (!skb_vlan_inet_prepare(skb, inner_proto_inherit))
return -EINVAL;
if (!gs6)
@ -997,7 +999,7 @@ static int geneve6_xmit_skb(struct sk_buff *skb, struct net_device *dev,
ttl = ttl ? : ip6_dst_hoplimit(dst);
}
err = geneve_build_skb(dst, skb, info, xnet, sizeof(struct ipv6hdr),
geneve->cfg.inner_proto_inherit);
inner_proto_inherit);
if (unlikely(err))
return err;

5
include/net/ip_tunnels.h
View file

@ -461,9 +461,10 @@ static inline bool pskb_inet_may_pull(struct sk_buff *skb)
/* Variant of pskb_inet_may_pull().
*/
static inline bool skb_vlan_inet_prepare(struct sk_buff *skb)
static inline bool skb_vlan_inet_prepare(struct sk_buff *skb,
bool inner_proto_inherit)
{
int nhlen = 0, maclen = ETH_HLEN;
int nhlen = 0, maclen = inner_proto_inherit ? 0 : ETH_HLEN;
__be16 type = skb->protocol;
/* Essentially this is skb_protocol(skb, true)