freebsd-skq/sys/netinet/tcp_offload.h
np c4e1d948c4 Add a hook to allow the toedev handling an offloaded connection to
provide accurate TCP_INFO.

Sponsored by:	Chelsio Communications
Differential Revision:	https://reviews.freebsd.org/D14816
2018-04-03 01:08:54 +00:00

52 lines
2.0 KiB
C

/*-
* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
*
* Copyright (c) 2012 Chelsio Communications, Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*
*/
#ifndef _NETINET_TCP_OFFLOAD_H_
#define _NETINET_TCP_OFFLOAD_H_
#ifndef _KERNEL
#error "no user-serviceable parts inside"
#endif
extern int registered_toedevs;
int tcp_offload_connect(struct socket *, struct sockaddr *);
void tcp_offload_listen_start(struct tcpcb *);
void tcp_offload_listen_stop(struct tcpcb *);
void tcp_offload_input(struct tcpcb *, struct mbuf *);
int tcp_offload_output(struct tcpcb *);
void tcp_offload_rcvd(struct tcpcb *);
void tcp_offload_ctloutput(struct tcpcb *, int, int);
void tcp_offload_tcp_info(struct tcpcb *, struct tcp_info *);
void tcp_offload_detach(struct tcpcb *);
#endif