diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/netdevice.h | 17 | ||||
| -rw-r--r-- | include/linux/skbuff.h | 6 | ||||
| -rw-r--r-- | include/net/ip6_route.h | 2 | ||||
| -rw-r--r-- | include/net/protocol.h | 6 | ||||
| -rw-r--r-- | include/net/sock.h | 13 | ||||
| -rw-r--r-- | include/net/tcp.h | 2 | ||||
| -rw-r--r-- | include/net/tcp_ecn.h | 4 |
7 files changed, 35 insertions, 15 deletions
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index aa2d3c12c4d8..85f99f60deea 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -313,10 +313,12 @@ struct net_device /* Segmentation offload features */ #define NETIF_F_GSO_SHIFT 16 +#define NETIF_F_GSO_MASK 0xffff0000 #define NETIF_F_TSO (SKB_GSO_TCPV4 << NETIF_F_GSO_SHIFT) -#define NETIF_F_UFO (SKB_GSO_UDPV4 << NETIF_F_GSO_SHIFT) +#define NETIF_F_UFO (SKB_GSO_UDP << NETIF_F_GSO_SHIFT) #define NETIF_F_GSO_ROBUST (SKB_GSO_DODGY << NETIF_F_GSO_SHIFT) -#define NETIF_F_TSO_ECN (SKB_GSO_TCPV4_ECN << NETIF_F_GSO_SHIFT) +#define NETIF_F_TSO_ECN (SKB_GSO_TCP_ECN << NETIF_F_GSO_SHIFT) +#define NETIF_F_TSO6 (SKB_GSO_TCPV6 << NETIF_F_GSO_SHIFT) #define NETIF_F_GEN_CSUM (NETIF_F_NO_CSUM | NETIF_F_HW_CSUM) #define NETIF_F_ALL_CSUM (NETIF_F_IP_CSUM | NETIF_F_GEN_CSUM) @@ -991,13 +993,18 @@ extern void dev_seq_stop(struct seq_file *seq, void *v); extern void linkwatch_run_queue(void); -static inline int skb_gso_ok(struct sk_buff *skb, int features) +static inline int net_gso_ok(int features, int gso_type) { - int feature = skb_shinfo(skb)->gso_size ? - skb_shinfo(skb)->gso_type << NETIF_F_GSO_SHIFT : 0; + int feature = gso_type << NETIF_F_GSO_SHIFT; return (features & feature) == feature; } +static inline int skb_gso_ok(struct sk_buff *skb, int features) +{ + return net_gso_ok(features, skb_shinfo(skb)->gso_size ? + skb_shinfo(skb)->gso_type : 0); +} + static inline int netif_needs_gso(struct net_device *dev, struct sk_buff *skb) { return !skb_gso_ok(skb, dev->features); diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h index 59918be91d0a..57d7d4965f9a 100644 --- a/include/linux/skbuff.h +++ b/include/linux/skbuff.h @@ -171,13 +171,15 @@ enum { enum { SKB_GSO_TCPV4 = 1 << 0, - SKB_GSO_UDPV4 = 1 << 1, + SKB_GSO_UDP = 1 << 1, /* This indicates the skb is from an untrusted source. */ SKB_GSO_DODGY = 1 << 2, /* This indicates the tcp segment has CWR set. */ - SKB_GSO_TCPV4_ECN = 1 << 3, + SKB_GSO_TCP_ECN = 1 << 3, + + SKB_GSO_TCPV6 = 1 << 4, }; /** diff --git a/include/net/ip6_route.h b/include/net/ip6_route.h index a398ae5e30f9..ab29dafb1a6a 100644 --- a/include/net/ip6_route.h +++ b/include/net/ip6_route.h @@ -146,7 +146,7 @@ static inline void ip6_dst_store(struct sock *sk, struct dst_entry *dst, struct rt6_info *rt = (struct rt6_info *) dst; write_lock(&sk->sk_dst_lock); - __sk_dst_set(sk, dst); + sk_setup_caps(sk, dst); np->daddr_cache = daddr; np->dst_cookie = rt->rt6i_node ? rt->rt6i_node->fn_sernum : 0; write_unlock(&sk->sk_dst_lock); diff --git a/include/net/protocol.h b/include/net/protocol.h index 40b6b9c9973f..a225d6371cb1 100644 --- a/include/net/protocol.h +++ b/include/net/protocol.h @@ -50,11 +50,17 @@ struct inet6_protocol struct inet6_skb_parm *opt, int type, int code, int offset, __u32 info); + + struct sk_buff *(*gso_segment)(struct sk_buff *skb, + int features); + unsigned int flags; /* INET6_PROTO_xxx */ }; #define INET6_PROTO_NOPOLICY 0x1 #define INET6_PROTO_FINAL 0x2 +/* This should be set for any extension header which is compatible with GSO. */ +#define INET6_PROTO_GSO_EXTHDR 0x4 #endif /* This is used to register socket interfaces for IP protocols. */ diff --git a/include/net/sock.h b/include/net/sock.h index 7136bae48c2f..7b3d6b856946 100644 --- a/include/net/sock.h +++ b/include/net/sock.h @@ -140,6 +140,7 @@ struct sock_common { * @sk_flags: %SO_LINGER (l_onoff), %SO_BROADCAST, %SO_KEEPALIVE, %SO_OOBINLINE settings * @sk_no_check: %SO_NO_CHECK setting, wether or not checkup packets * @sk_route_caps: route capabilities (e.g. %NETIF_F_TSO) + * @sk_gso_type: GSO type (e.g. %SKB_GSO_TCPV4) * @sk_lingertime: %SO_LINGER l_linger setting * @sk_backlog: always used with the per-socket spinlock held * @sk_callback_lock: used with the callbacks in the end of this struct @@ -211,6 +212,7 @@ struct sock { gfp_t sk_allocation; int sk_sndbuf; int sk_route_caps; + int sk_gso_type; int sk_rcvlowat; unsigned long sk_flags; unsigned long sk_lingertime; @@ -1025,15 +1027,20 @@ extern struct dst_entry *__sk_dst_check(struct sock *sk, u32 cookie); extern struct dst_entry *sk_dst_check(struct sock *sk, u32 cookie); +static inline int sk_can_gso(const struct sock *sk) +{ + return net_gso_ok(sk->sk_route_caps, sk->sk_gso_type); +} + static inline void sk_setup_caps(struct sock *sk, struct dst_entry *dst) { __sk_dst_set(sk, dst); sk->sk_route_caps = dst->dev->features; if (sk->sk_route_caps & NETIF_F_GSO) - sk->sk_route_caps |= NETIF_F_TSO; - if (sk->sk_route_caps & NETIF_F_TSO) { + sk->sk_route_caps |= NETIF_F_GSO_MASK; + if (sk_can_gso(sk)) { if (dst->header_len) - sk->sk_route_caps &= ~NETIF_F_TSO; + sk->sk_route_caps &= ~NETIF_F_GSO_MASK; else sk->sk_route_caps |= NETIF_F_SG | NETIF_F_HW_CSUM; } diff --git a/include/net/tcp.h b/include/net/tcp.h index 624921e76332..3cd803b0d7a5 100644 --- a/include/net/tcp.h +++ b/include/net/tcp.h @@ -751,7 +751,7 @@ static inline int tcp_is_cwnd_limited(const struct sock *sk, u32 in_flight) if (in_flight >= tp->snd_cwnd) return 1; - if (!(sk->sk_route_caps & NETIF_F_TSO)) + if (!sk_can_gso(sk)) return 0; left = tp->snd_cwnd - in_flight; diff --git a/include/net/tcp_ecn.h b/include/net/tcp_ecn.h index 7bb366f70934..4629d77173f2 100644 --- a/include/net/tcp_ecn.h +++ b/include/net/tcp_ecn.h @@ -55,9 +55,7 @@ static inline void TCP_ECN_send(struct sock *sk, struct tcp_sock *tp, if (tp->ecn_flags&TCP_ECN_QUEUE_CWR) { tp->ecn_flags &= ~TCP_ECN_QUEUE_CWR; skb->h.th->cwr = 1; - if (skb_shinfo(skb)->gso_type & SKB_GSO_TCPV4) - skb_shinfo(skb)->gso_type |= - SKB_GSO_TCPV4_ECN; + skb_shinfo(skb)->gso_type |= SKB_GSO_TCP_ECN; } } else { /* ACK or retransmitted segment: clear ECT|CE */ |