diff options
Diffstat (limited to 'include/linux/udp.h')
| -rw-r--r-- | include/linux/udp.h | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/include/linux/udp.h b/include/linux/udp.h index 0807e21cfec9..58795688a186 100644 --- a/include/linux/udp.h +++ b/include/linux/udp.h @@ -44,6 +44,12 @@ enum { UDP_FLAGS_UDPLITE_RECV_CC, /* set via udplite setsockopt */ }; +/* per NUMA structure for lockless producer usage. */ +struct udp_prod_queue { + struct llist_head ll_root ____cacheline_aligned_in_smp; + atomic_t rmem_alloc; +}; + struct udp_sock { /* inet_sock has to be the first member */ struct inet_sock inet; @@ -90,6 +96,8 @@ struct udp_sock { struct sk_buff *skb, int nhoff); + struct udp_prod_queue *udp_prod_queue; + /* udp_recvmsg try to use this before splicing sk_receive_queue */ struct sk_buff_head reader_queue ____cacheline_aligned_in_smp; @@ -101,6 +109,14 @@ struct udp_sock { /* Cache friendly copy of sk->sk_peek_off >= 0 */ bool peeking_with_offset; + + /* + * Accounting for the tunnel GRO fastpath. + * Unprotected by compilers guard, as it uses space available in + * the last UDP socket cacheline. + */ + struct hlist_node tunnel_list; + struct numa_drop_counters drop_counters; }; #define udp_test_bit(nr, sk) \ @@ -209,6 +225,9 @@ static inline void udp_allow_gso(struct sock *sk) #define udp_portaddr_for_each_entry(__sk, list) \ hlist_for_each_entry(__sk, list, __sk_common.skc_portaddr_node) +#define udp_portaddr_for_each_entry_from(__sk) \ + hlist_for_each_entry_from(__sk, __sk_common.skc_portaddr_node) + #define udp_portaddr_for_each_entry_rcu(__sk, list) \ hlist_for_each_entry_rcu(__sk, list, __sk_common.skc_portaddr_node) @@ -219,4 +238,13 @@ static inline void udp_allow_gso(struct sock *sk) #define IS_UDPLITE(__sk) (__sk->sk_protocol == IPPROTO_UDPLITE) +static inline struct sock *udp_tunnel_sk(const struct net *net, bool is_ipv6) +{ +#if IS_ENABLED(CONFIG_NET_UDP_TUNNEL) + return rcu_dereference(net->ipv4.udp_tunnel_gro[is_ipv6].sk); +#else + return NULL; +#endif +} + #endif /* _LINUX_UDP_H */ |