diff options
| author |   Steffen Klassert <steffen.klassert@secunet.com> | 2020-01-25 11:26:44 +0100 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2020-01-27 11:00:21 +0100 |
| commit | 3a1296a38d0cf62bffb9a03c585cbd5dbf15d596 (patch) | |
| tree | 0e76488218f1564f624394732d68dd09b19961ed /include/linux | |
| parent | net: Add a netdev software feature set that defaults to off. (diff) | |
| download | wireguard-linux-3a1296a38d0cf62bffb9a03c585cbd5dbf15d596.tar.xz wireguard-linux-3a1296a38d0cf62bffb9a03c585cbd5dbf15d596.zip | |
net: Support GRO/GSO fraglist chaining.
This patch adds the core functions to chain/unchain
GSO skbs at the frag_list pointer. This also adds
a new GSO type SKB_GSO_FRAGLIST and a is_flist
flag to napi_gro_cb which indicates that this
flow will be GROed by fraglist chaining.
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Reviewed-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/netdevice.h | 4 | ||||
| -rw-r--r-- | include/linux/skbuff.h | 2 |
2 files changed, 5 insertions, 1 deletions
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index fcc76b890f50..20445f94eb1c 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -2326,7 +2326,8 @@ struct napi_gro_cb { /* Number of gro_receive callbacks this packet already went through */ u8 recursion_counter:4; - /* 1 bit hole */ + /* GRO is done by frag_list pointer chaining. */ + u8 is_flist:1; /* used to support CHECKSUM_COMPLETE for tunneling protocols */ __wsum csum; @@ -2694,6 +2695,7 @@ struct net_device *dev_get_by_napi_id(unsigned int napi_id); int netdev_get_name(struct net *net, char *name, int ifindex); int dev_restart(struct net_device *dev); int skb_gro_receive(struct sk_buff *p, struct sk_buff *skb); +int skb_gro_receive_list(struct sk_buff *p, struct sk_buff *skb); static inline unsigned int skb_gro_offset(const struct sk_buff *skb) { diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h index 23aaaf08e1e9..3d13a4b717e9 100644 --- a/include/linux/skbuff.h +++ b/include/linux/skbuff.h @@ -3535,6 +3535,8 @@ void skb_scrub_packet(struct sk_buff *skb, bool xnet); bool skb_gso_validate_network_len(const struct sk_buff *skb, unsigned int mtu); bool skb_gso_validate_mac_len(const struct sk_buff *skb, unsigned int len); struct sk_buff *skb_segment(struct sk_buff *skb, netdev_features_t features); +struct sk_buff *skb_segment_list(struct sk_buff *skb, netdev_features_t features, + unsigned int offset); struct sk_buff *skb_vlan_untag(struct sk_buff *skb); int skb_ensure_writable(struct sk_buff *skb, int write_len); int __skb_vlan_pop(struct sk_buff *skb, u16 *vlan_tci); |