diff options
Diffstat (limited to 'include/net/sock.h')
| -rw-r--r-- | include/net/sock.h | 21 |
1 files changed, 15 insertions, 6 deletions
diff --git a/include/net/sock.h b/include/net/sock.h index 66772cf8c3c5..95a5a2c6925a 100644 --- a/include/net/sock.h +++ b/include/net/sock.h @@ -229,6 +229,8 @@ struct cg_proto; * @sk_omem_alloc: "o" is "option" or "other" * @sk_wmem_queued: persistent queue size * @sk_forward_alloc: space allocated forward + * @sk_napi_id: id of the last napi context to receive data for sk + * @sk_ll_usec: usecs to busypoll when there is no data * @sk_allocation: allocation mode * @sk_sndbuf: size of send buffer in bytes * @sk_flags: %SO_LINGER (l_onoff), %SO_BROADCAST, %SO_KEEPALIVE, @@ -325,6 +327,10 @@ struct sock { #ifdef CONFIG_RPS __u32 sk_rxhash; #endif +#ifdef CONFIG_NET_LL_RX_POLL + unsigned int sk_napi_id; + unsigned int sk_ll_usec; +#endif atomic_t sk_drops; int sk_rcvbuf; @@ -2041,18 +2047,21 @@ static inline void sk_wake_async(struct sock *sk, int how, int band) sock_wake_async(sk->sk_socket, how, band); } -#define SOCK_MIN_SNDBUF 2048 -/* - * Since sk_rmem_alloc sums skb->truesize, even a small frame might need - * sizeof(sk_buff) + MTU + padding, unless net driver perform copybreak +/* Since sk_{r,w}mem_alloc sums skb->truesize, even a small frame might + * need sizeof(sk_buff) + MTU + padding, unless net driver perform copybreak. + * Note: for send buffers, TCP works better if we can build two skbs at + * minimum. */ -#define SOCK_MIN_RCVBUF (2048 + sizeof(struct sk_buff)) +#define TCP_SKB_MIN_TRUESIZE (2048 + SKB_DATA_ALIGN(sizeof(struct sk_buff))) + +#define SOCK_MIN_SNDBUF (TCP_SKB_MIN_TRUESIZE * 2) +#define SOCK_MIN_RCVBUF TCP_SKB_MIN_TRUESIZE static inline void sk_stream_moderate_sndbuf(struct sock *sk) { if (!(sk->sk_userlocks & SOCK_SNDBUF_LOCK)) { sk->sk_sndbuf = min(sk->sk_sndbuf, sk->sk_wmem_queued >> 1); - sk->sk_sndbuf = max(sk->sk_sndbuf, SOCK_MIN_SNDBUF); + sk->sk_sndbuf = max_t(u32, sk->sk_sndbuf, SOCK_MIN_SNDBUF); } } |