diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/netdev_features.h | 3 | ||||
| -rw-r--r-- | include/linux/skbuff.h | 30 | ||||
| -rw-r--r-- | include/net/gre.h | 5 | ||||
| -rw-r--r-- | include/net/ip6_checksum.h | 12 | ||||
| -rw-r--r-- | include/net/udp.h | 9 | ||||
| -rw-r--r-- | include/net/vxlan.h | 12 | ||||
| -rw-r--r-- | include/uapi/linux/if_link.h | 3 |
7 files changed, 70 insertions, 4 deletions
diff --git a/include/linux/netdev_features.h b/include/linux/netdev_features.h index c26d0ec2ef3a..e5a589435e2b 100644 --- a/include/linux/netdev_features.h +++ b/include/linux/netdev_features.h @@ -42,9 +42,11 @@ enum { NETIF_F_TSO6_BIT, /* ... TCPv6 segmentation */ NETIF_F_FSO_BIT, /* ... FCoE segmentation */ NETIF_F_GSO_GRE_BIT, /* ... GRE with TSO */ + NETIF_F_GSO_GRE_CSUM_BIT, /* ... GRE with csum with TSO */ NETIF_F_GSO_IPIP_BIT, /* ... IPIP tunnel with TSO */ NETIF_F_GSO_SIT_BIT, /* ... SIT tunnel with TSO */ NETIF_F_GSO_UDP_TUNNEL_BIT, /* ... UDP TUNNEL with TSO */ + NETIF_F_GSO_UDP_TUNNEL_CSUM_BIT,/* ... UDP TUNNEL with TSO & CSUM */ NETIF_F_GSO_MPLS_BIT, /* ... MPLS segmentation */ /**/NETIF_F_GSO_LAST = /* last bit, see GSO_MASK */ NETIF_F_GSO_MPLS_BIT, @@ -111,6 +113,7 @@ enum { #define NETIF_F_RXFCS __NETIF_F(RXFCS) #define NETIF_F_RXALL __NETIF_F(RXALL) #define NETIF_F_GSO_GRE __NETIF_F(GSO_GRE) +#define NETIF_F_GSO_GRE_CSUM __NETIF_F(GSO_GRE_CSUM) #define NETIF_F_GSO_IPIP __NETIF_F(GSO_IPIP) #define NETIF_F_GSO_SIT __NETIF_F(GSO_SIT) #define NETIF_F_GSO_UDP_TUNNEL __NETIF_F(GSO_UDP_TUNNEL) diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h index 7a9beeb1c458..c705808bef9c 100644 --- a/include/linux/skbuff.h +++ b/include/linux/skbuff.h @@ -345,6 +345,10 @@ enum { SKB_GSO_UDP_TUNNEL = 1 << 9, SKB_GSO_MPLS = 1 << 10, + + SKB_GSO_UDP_TUNNEL_CSUM = 1 << 11, + + SKB_GSO_GRE_CSUM = 1 << 12, }; #if BITS_PER_LONG > 32 @@ -567,7 +571,8 @@ struct sk_buff { * headers if needed */ __u8 encapsulation:1; - /* 6/8 bit hole (depending on ndisc_nodetype presence) */ + __u8 encap_hdr_csum:1; + /* 5/7 bit hole (depending on ndisc_nodetype presence) */ kmemcheck_bitfield_end(flags2); #if defined CONFIG_NET_DMA || defined CONFIG_NET_RX_BUSY_POLL @@ -2988,6 +2993,7 @@ static inline struct sec_path *skb_sec_path(struct sk_buff *skb) struct skb_gso_cb { int mac_offset; int encap_level; + __u16 csum_start; }; #define SKB_GSO_CB(skb) ((struct skb_gso_cb *)(skb)->cb) @@ -3012,6 +3018,28 @@ static inline int gso_pskb_expand_head(struct sk_buff *skb, int extra) return 0; } +/* Compute the checksum for a gso segment. First compute the checksum value + * from the start of transport header to SKB_GSO_CB(skb)->csum_start, and + * then add in skb->csum (checksum from csum_start to end of packet). + * skb->csum and csum_start are then updated to reflect the checksum of the + * resultant packet starting from the transport header-- the resultant checksum + * is in the res argument (i.e. normally zero or ~ of checksum of a pseudo + * header. + */ +static inline __sum16 gso_make_checksum(struct sk_buff *skb, __wsum res) +{ + int plen = SKB_GSO_CB(skb)->csum_start - skb_headroom(skb) - + skb_transport_offset(skb); + __u16 csum; + + csum = csum_fold(csum_partial(skb_transport_header(skb), + plen, skb->csum)); + skb->csum = res; + SKB_GSO_CB(skb)->csum_start -= plen; + + return csum; +} + static inline bool skb_is_gso(const struct sk_buff *skb) { return skb_shinfo(skb)->gso_size; diff --git a/include/net/gre.h b/include/net/gre.h index 70046a0b0b89..b53182018743 100644 --- a/include/net/gre.h +++ b/include/net/gre.h @@ -37,9 +37,10 @@ void gre_build_header(struct sk_buff *skb, const struct tnl_ptk_info *tpi, int hdr_len); static inline struct sk_buff *gre_handle_offloads(struct sk_buff *skb, - bool gre_csum) + bool csum) { - return iptunnel_handle_offloads(skb, gre_csum, SKB_GSO_GRE); + return iptunnel_handle_offloads(skb, csum, + csum ? SKB_GSO_GRE_CSUM : SKB_GSO_GRE); } diff --git a/include/net/ip6_checksum.h b/include/net/ip6_checksum.h index 8ac5c21f8456..55236cb71174 100644 --- a/include/net/ip6_checksum.h +++ b/include/net/ip6_checksum.h @@ -82,5 +82,17 @@ static inline void tcp_v6_send_check(struct sock *sk, struct sk_buff *skb) } #endif +static inline __sum16 udp_v6_check(int len, + const struct in6_addr *saddr, + const struct in6_addr *daddr, + __wsum base) +{ + return csum_ipv6_magic(saddr, daddr, len, IPPROTO_UDP, base); +} + +void udp6_set_csum(bool nocheck, struct sk_buff *skb, + const struct in6_addr *saddr, + const struct in6_addr *daddr, int len); + int udp6_csum_init(struct sk_buff *skb, struct udphdr *uh, int proto); #endif diff --git a/include/net/udp.h b/include/net/udp.h index 5eb86874bcd6..2ecfc6e15609 100644 --- a/include/net/udp.h +++ b/include/net/udp.h @@ -147,6 +147,15 @@ static inline __wsum udp_csum(struct sk_buff *skb) return csum; } +static inline __sum16 udp_v4_check(int len, __be32 saddr, + __be32 daddr, __wsum base) +{ + return csum_tcpudp_magic(saddr, daddr, len, IPPROTO_UDP, base); +} + +void udp_set_csum(bool nocheck, struct sk_buff *skb, + __be32 saddr, __be32 daddr, int len); + /* hash routines shared between UDPv4/6 and UDP-Litev4/6 */ static inline void udp_lib_hash(struct sock *sk) { diff --git a/include/net/vxlan.h b/include/net/vxlan.h index 7bb4084b1bd0..12196ce661d9 100644 --- a/include/net/vxlan.h +++ b/include/net/vxlan.h @@ -24,9 +24,19 @@ struct vxlan_sock { struct udp_offload udp_offloads; }; +#define VXLAN_F_LEARN 0x01 +#define VXLAN_F_PROXY 0x02 +#define VXLAN_F_RSC 0x04 +#define VXLAN_F_L2MISS 0x08 +#define VXLAN_F_L3MISS 0x10 +#define VXLAN_F_IPV6 0x20 +#define VXLAN_F_UDP_CSUM 0x40 +#define VXLAN_F_UDP_ZERO_CSUM6_TX 0x80 +#define VXLAN_F_UDP_ZERO_CSUM6_RX 0x100 + struct vxlan_sock *vxlan_sock_add(struct net *net, __be16 port, vxlan_rcv_t *rcv, void *data, - bool no_share, bool ipv6); + bool no_share, u32 flags); void vxlan_sock_release(struct vxlan_sock *vs); diff --git a/include/uapi/linux/if_link.h b/include/uapi/linux/if_link.h index 622e7910b8cc..b38534895db5 100644 --- a/include/uapi/linux/if_link.h +++ b/include/uapi/linux/if_link.h @@ -319,6 +319,9 @@ enum { IFLA_VXLAN_PORT, /* destination port */ IFLA_VXLAN_GROUP6, IFLA_VXLAN_LOCAL6, + IFLA_VXLAN_UDP_CSUM, + IFLA_VXLAN_UDP_ZERO_CSUM6_TX, + IFLA_VXLAN_UDP_ZERO_CSUM6_RX, __IFLA_VXLAN_MAX }; #define IFLA_VXLAN_MAX (__IFLA_VXLAN_MAX - 1) |