xref: /freebsd/sys/netinet/tcp_offload.h (revision a90b9d0159070121c221b966469c3e36d912bf82)
1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause
3  *
4  * Copyright (c) 2012 Chelsio Communications, Inc.
5  * All rights reserved.
6  *
7  * Redistribution and use in source and binary forms, with or without
8  * modification, are permitted provided that the following conditions
9  * are met:
10  * 1. Redistributions of source code must retain the above copyright
11  *    notice, this list of conditions and the following disclaimer.
12  * 2. Redistributions in binary form must reproduce the above copyright
13  *    notice, this list of conditions and the following disclaimer in the
14  *    documentation and/or other materials provided with the distribution.
15  *
16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26  * SUCH DAMAGE.
27  *
28  */
29 
30 #ifndef _NETINET_TCP_OFFLOAD_H_
31 #define	_NETINET_TCP_OFFLOAD_H_
32 
33 #ifndef _KERNEL
34 #error "no user-serviceable parts inside"
35 #endif
36 
37 #include <netinet/tcp.h>
38 
39 extern int registered_toedevs;
40 
41 struct tcpcb;
42 
43 int  tcp_offload_connect(struct socket *, struct sockaddr *);
44 void tcp_offload_listen_start(struct tcpcb *);
45 void tcp_offload_listen_stop(struct tcpcb *);
46 void tcp_offload_input(struct tcpcb *, struct mbuf *);
47 int  tcp_offload_output(struct tcpcb *);
48 void tcp_offload_rcvd(struct tcpcb *);
49 void tcp_offload_ctloutput(struct tcpcb *, int, int);
50 void tcp_offload_tcp_info(const struct tcpcb *, struct tcp_info *);
51 int  tcp_offload_alloc_tls_session(struct tcpcb *, struct ktls_session *, int);
52 void tcp_offload_detach(struct tcpcb *);
53 void tcp_offload_pmtu_update(struct tcpcb *, tcp_seq, int);
54 
55 #endif
56