blob: 0dbdd37162da34ea33eddbd610d90aa78b32b93c [file] [log] [blame]
Andy Grover70041082009-08-21 12:28:31 +00001#ifndef _RDS_TCP_H
2#define _RDS_TCP_H
3
4#define RDS_TCP_PORT 16385
5
6struct rds_tcp_incoming {
7 struct rds_incoming ti_inc;
8 struct sk_buff_head ti_skb_list;
9};
10
11struct rds_tcp_connection {
12
13 struct list_head t_tcp_node;
14 struct rds_connection *conn;
15 struct socket *t_sock;
16 void *t_orig_write_space;
17 void *t_orig_data_ready;
18 void *t_orig_state_change;
19
20 struct rds_tcp_incoming *t_tinc;
21 size_t t_tinc_hdr_rem;
22 size_t t_tinc_data_rem;
23
24 /* XXX error report? */
25 struct work_struct t_conn_w;
26 struct work_struct t_send_w;
27 struct work_struct t_down_w;
28 struct work_struct t_recv_w;
29
30 /* for info exporting only */
31 struct list_head t_list_item;
32 u32 t_last_sent_nxt;
33 u32 t_last_expected_una;
34 u32 t_last_seen_una;
35};
36
37struct rds_tcp_statistics {
38 uint64_t s_tcp_data_ready_calls;
39 uint64_t s_tcp_write_space_calls;
40 uint64_t s_tcp_sndbuf_full;
41 uint64_t s_tcp_connect_raced;
42 uint64_t s_tcp_listen_closed_stale;
43};
44
45/* tcp.c */
Andy Grover70041082009-08-21 12:28:31 +000046void rds_tcp_tune(struct socket *sock);
47void rds_tcp_nonagle(struct socket *sock);
48void rds_tcp_set_callbacks(struct socket *sock, struct rds_connection *conn);
49void rds_tcp_restore_callbacks(struct socket *sock,
50 struct rds_tcp_connection *tc);
51u32 rds_tcp_snd_nxt(struct rds_tcp_connection *tc);
52u32 rds_tcp_snd_una(struct rds_tcp_connection *tc);
53u64 rds_tcp_map_seq(struct rds_tcp_connection *tc, u32 seq);
54extern struct rds_transport rds_tcp_transport;
55
56/* tcp_connect.c */
57int rds_tcp_conn_connect(struct rds_connection *conn);
58void rds_tcp_conn_shutdown(struct rds_connection *conn);
59void rds_tcp_state_change(struct sock *sk);
60
61/* tcp_listen.c */
Zach Brownef87b7e2010-07-09 12:26:20 -070062int rds_tcp_listen_init(void);
Andy Grover70041082009-08-21 12:28:31 +000063void rds_tcp_listen_stop(void);
David S. Miller676d2362014-04-11 16:15:36 -040064void rds_tcp_listen_data_ready(struct sock *sk);
Andy Grover70041082009-08-21 12:28:31 +000065
66/* tcp_recv.c */
Zach Brownef87b7e2010-07-09 12:26:20 -070067int rds_tcp_recv_init(void);
Andy Grover70041082009-08-21 12:28:31 +000068void rds_tcp_recv_exit(void);
David S. Miller676d2362014-04-11 16:15:36 -040069void rds_tcp_data_ready(struct sock *sk);
Andy Grover70041082009-08-21 12:28:31 +000070int rds_tcp_recv(struct rds_connection *conn);
Andy Grover70041082009-08-21 12:28:31 +000071void rds_tcp_inc_free(struct rds_incoming *inc);
Al Viroc310e722014-11-20 09:21:14 -050072int rds_tcp_inc_copy_to_user(struct rds_incoming *inc, struct iov_iter *to);
Andy Grover70041082009-08-21 12:28:31 +000073
74/* tcp_send.c */
75void rds_tcp_xmit_prepare(struct rds_connection *conn);
76void rds_tcp_xmit_complete(struct rds_connection *conn);
77int rds_tcp_xmit(struct rds_connection *conn, struct rds_message *rm,
78 unsigned int hdr_off, unsigned int sg, unsigned int off);
79void rds_tcp_write_space(struct sock *sk);
Andy Grover70041082009-08-21 12:28:31 +000080
81/* tcp_stats.c */
82DECLARE_PER_CPU(struct rds_tcp_statistics, rds_tcp_stats);
83#define rds_tcp_stats_inc(member) rds_stats_inc_which(rds_tcp_stats, member)
84unsigned int rds_tcp_stats_info_copy(struct rds_info_iterator *iter,
85 unsigned int avail);
86
87#endif