提交 e6a88e4b 编写于 作者: D David S. Miller

Merge branch 'q-in-q-checksums'

Daniel Borkmann says:

====================
BPF pruning follow-up

Follow-up to fix incorrect pruning when alignment tracking is
in use and to properly clear regs after call to not leave stale
data behind. For details, please see individual patches.
====================
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
......@@ -5078,9 +5078,11 @@ static netdev_features_t be_features_check(struct sk_buff *skb,
struct be_adapter *adapter = netdev_priv(dev);
u8 l4_hdr = 0;
/* The code below restricts offload features for some tunneled packets.
/* The code below restricts offload features for some tunneled and
* Q-in-Q packets.
* Offload features for normal (non tunnel) packets are unchanged.
*/
features = vlan_features_check(skb, features);
if (!skb->encapsulation ||
!(adapter->flags & BE_FLAGS_VXLAN_OFFLOADS))
return features;
......
......@@ -1989,6 +1989,7 @@ static const struct net_device_ops virtnet_netdev = {
.ndo_poll_controller = virtnet_netpoll,
#endif
.ndo_xdp = virtnet_xdp,
.ndo_features_check = passthru_features_check,
};
static void virtnet_config_changed_work(struct work_struct *work)
......
......@@ -614,14 +614,16 @@ static inline bool skb_vlan_tagged_multi(const struct sk_buff *skb)
static inline netdev_features_t vlan_features_check(const struct sk_buff *skb,
netdev_features_t features)
{
if (skb_vlan_tagged_multi(skb))
features = netdev_intersect_features(features,
NETIF_F_SG |
NETIF_F_HIGHDMA |
NETIF_F_FRAGLIST |
NETIF_F_HW_CSUM |
NETIF_F_HW_VLAN_CTAG_TX |
NETIF_F_HW_VLAN_STAG_TX);
if (skb_vlan_tagged_multi(skb)) {
/* In the case of multi-tagged packets, use a direct mask
* instead of using netdev_interesect_features(), to make
* sure that only devices supporting NETIF_F_HW_CSUM will
* have checksum offloading support.
*/
features &= NETIF_F_SG | NETIF_F_HIGHDMA | NETIF_F_HW_CSUM |
NETIF_F_FRAGLIST | NETIF_F_HW_VLAN_CTAG_TX |
NETIF_F_HW_VLAN_STAG_TX;
}
return features;
}
......
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