Commit | Line | Data |
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b2441318 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
70041088 AG |
2 | #ifndef _RDS_TCP_H |
3 | #define _RDS_TCP_H | |
4 | ||
5 | #define RDS_TCP_PORT 16385 | |
6 | ||
7 | struct rds_tcp_incoming { | |
8 | struct rds_incoming ti_inc; | |
9 | struct sk_buff_head ti_skb_list; | |
10 | }; | |
11 | ||
12 | struct rds_tcp_connection { | |
13 | ||
14 | struct list_head t_tcp_node; | |
f10b4cff | 15 | bool t_tcp_node_detached; |
02105b2c SV |
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; |
70041088 AG |
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 | ||
43 | struct 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 */ | |
6997fbd7 | 52 | bool rds_tcp_tune(struct socket *sock); |
ea3b1ea5 SV |
53 | void rds_tcp_set_callbacks(struct socket *sock, struct rds_conn_path *cp); |
54 | void rds_tcp_reset_callbacks(struct socket *sock, struct rds_conn_path *cp); | |
70041088 AG |
55 | void rds_tcp_restore_callbacks(struct socket *sock, |
56 | struct rds_tcp_connection *tc); | |
b589513e | 57 | u32 rds_tcp_write_seq(struct rds_tcp_connection *tc); |
70041088 AG |
58 | u32 rds_tcp_snd_una(struct rds_tcp_connection *tc); |
59 | u64 rds_tcp_map_seq(struct rds_tcp_connection *tc, u32 seq); | |
60 | extern struct rds_transport rds_tcp_transport; | |
467fa153 | 61 | void rds_tcp_accept_work(struct sock *sk); |
aced3ce5 RS |
62 | int rds_tcp_laddr_check(struct net *net, const struct in6_addr *addr, |
63 | __u32 scope_id); | |
70041088 | 64 | /* tcp_connect.c */ |
b04e8554 | 65 | int rds_tcp_conn_path_connect(struct rds_conn_path *cp); |
226f7a7d | 66 | void rds_tcp_conn_path_shutdown(struct rds_conn_path *conn); |
70041088 AG |
67 | void rds_tcp_state_change(struct sock *sk); |
68 | ||
69 | /* tcp_listen.c */ | |
1e2b44e7 | 70 | struct socket *rds_tcp_listen_init(struct net *net, bool isv6); |
b21dd450 | 71 | void rds_tcp_listen_stop(struct socket *sock, struct work_struct *acceptor); |
676d2369 | 72 | void rds_tcp_listen_data_ready(struct sock *sk); |
467fa153 | 73 | int rds_tcp_accept_one(struct socket *sock); |
480aeb96 | 74 | void rds_tcp_keepalive(struct socket *sock); |
a93d01f5 | 75 | void *rds_tcp_listen_sock_def_readable(struct net *net); |
70041088 AG |
76 | |
77 | /* tcp_recv.c */ | |
ef87b7ea | 78 | int rds_tcp_recv_init(void); |
70041088 | 79 | void rds_tcp_recv_exit(void); |
676d2369 | 80 | void rds_tcp_data_ready(struct sock *sk); |
2da43c4a | 81 | int rds_tcp_recv_path(struct rds_conn_path *cp); |
70041088 | 82 | void rds_tcp_inc_free(struct rds_incoming *inc); |
c310e72c | 83 | int rds_tcp_inc_copy_to_user(struct rds_incoming *inc, struct iov_iter *to); |
70041088 AG |
84 | |
85 | /* tcp_send.c */ | |
226f7a7d SV |
86 | void rds_tcp_xmit_path_prepare(struct rds_conn_path *cp); |
87 | void rds_tcp_xmit_path_complete(struct rds_conn_path *cp); | |
70041088 | 88 | int rds_tcp_xmit(struct rds_connection *conn, struct rds_message *rm, |
5c3da57d | 89 | unsigned int hdr_off, unsigned int sg, unsigned int off); |
70041088 | 90 | void rds_tcp_write_space(struct sock *sk); |
70041088 AG |
91 | |
92 | /* tcp_stats.c */ | |
93 | DECLARE_PER_CPU(struct rds_tcp_statistics, rds_tcp_stats); | |
94 | #define rds_tcp_stats_inc(member) rds_stats_inc_which(rds_tcp_stats, member) | |
95 | unsigned int rds_tcp_stats_info_copy(struct rds_info_iterator *iter, | |
96 | unsigned int avail); | |
97 | ||
98 | #endif |