rds: Changing IP address internal representation to struct in6_addr
[linux-2.6-block.git] / net / rds / tcp.h
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b2441318 1/* SPDX-License-Identifier: GPL-2.0 */
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2#ifndef _RDS_TCP_H
3#define _RDS_TCP_H
4
5#define RDS_TCP_PORT 16385
6
7struct rds_tcp_incoming {
8 struct rds_incoming ti_inc;
9 struct sk_buff_head ti_skb_list;
10};
11
12struct rds_tcp_connection {
13
14 struct list_head t_tcp_node;
f10b4cff 15 bool t_tcp_node_detached;
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16 struct rds_conn_path *t_cpath;
17 /* t_conn_path_lock synchronizes the connection establishment between
b04e8554 18 * rds_tcp_accept_one and rds_tcp_conn_path_connect
bd7c5f98 19 */
02105b2c 20 struct mutex t_conn_path_lock;
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21 struct socket *t_sock;
22 void *t_orig_write_space;
23 void *t_orig_data_ready;
24 void *t_orig_state_change;
25
26 struct rds_tcp_incoming *t_tinc;
27 size_t t_tinc_hdr_rem;
28 size_t t_tinc_data_rem;
29
30 /* XXX error report? */
31 struct work_struct t_conn_w;
32 struct work_struct t_send_w;
33 struct work_struct t_down_w;
34 struct work_struct t_recv_w;
35
36 /* for info exporting only */
37 struct list_head t_list_item;
38 u32 t_last_sent_nxt;
39 u32 t_last_expected_una;
40 u32 t_last_seen_una;
41};
42
43struct rds_tcp_statistics {
44 uint64_t s_tcp_data_ready_calls;
45 uint64_t s_tcp_write_space_calls;
46 uint64_t s_tcp_sndbuf_full;
47 uint64_t s_tcp_connect_raced;
48 uint64_t s_tcp_listen_closed_stale;
49};
50
51/* tcp.c */
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52void rds_tcp_tune(struct socket *sock);
53void rds_tcp_nonagle(struct socket *sock);
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54void rds_tcp_set_callbacks(struct socket *sock, struct rds_conn_path *cp);
55void rds_tcp_reset_callbacks(struct socket *sock, struct rds_conn_path *cp);
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56void rds_tcp_restore_callbacks(struct socket *sock,
57 struct rds_tcp_connection *tc);
b589513e 58u32 rds_tcp_write_seq(struct rds_tcp_connection *tc);
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59u32 rds_tcp_snd_una(struct rds_tcp_connection *tc);
60u64 rds_tcp_map_seq(struct rds_tcp_connection *tc, u32 seq);
61extern struct rds_transport rds_tcp_transport;
467fa153 62void rds_tcp_accept_work(struct sock *sk);
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63
64/* tcp_connect.c */
b04e8554 65int rds_tcp_conn_path_connect(struct rds_conn_path *cp);
226f7a7d 66void rds_tcp_conn_path_shutdown(struct rds_conn_path *conn);
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67void rds_tcp_state_change(struct sock *sk);
68
69/* tcp_listen.c */
467fa153 70struct socket *rds_tcp_listen_init(struct net *);
b21dd450 71void rds_tcp_listen_stop(struct socket *sock, struct work_struct *acceptor);
676d2369 72void rds_tcp_listen_data_ready(struct sock *sk);
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73int rds_tcp_accept_one(struct socket *sock);
74int rds_tcp_keepalive(struct socket *sock);
a93d01f5 75void *rds_tcp_listen_sock_def_readable(struct net *net);
c14b0366 76void rds_tcp_set_linger(struct socket *sock);
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77
78/* tcp_recv.c */
ef87b7ea 79int rds_tcp_recv_init(void);
70041088 80void rds_tcp_recv_exit(void);
676d2369 81void rds_tcp_data_ready(struct sock *sk);
2da43c4a 82int rds_tcp_recv_path(struct rds_conn_path *cp);
70041088 83void rds_tcp_inc_free(struct rds_incoming *inc);
c310e72c 84int rds_tcp_inc_copy_to_user(struct rds_incoming *inc, struct iov_iter *to);
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85
86/* tcp_send.c */
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87void rds_tcp_xmit_path_prepare(struct rds_conn_path *cp);
88void rds_tcp_xmit_path_complete(struct rds_conn_path *cp);
70041088 89int rds_tcp_xmit(struct rds_connection *conn, struct rds_message *rm,
5c3da57d 90 unsigned int hdr_off, unsigned int sg, unsigned int off);
70041088 91void rds_tcp_write_space(struct sock *sk);
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92
93/* tcp_stats.c */
94DECLARE_PER_CPU(struct rds_tcp_statistics, rds_tcp_stats);
95#define rds_tcp_stats_inc(member) rds_stats_inc_which(rds_tcp_stats, member)
96unsigned int rds_tcp_stats_info_copy(struct rds_info_iterator *iter,
97 unsigned int avail);
98
99#endif