78a6b08618
Mainly focus on files that use BSD 2-Clause license, however the tool I was using misidentified many licenses so this was mostly a manual - error prone - task. The Software Package Data Exchange (SPDX) group provides a specification to make it easier for automated tools to detect and summarize well known opensource licenses. We are gradually adopting the specification, noting that the tags are considered only advisory and do not, in any way, superceed or replace the license texts. No functional change intended.
180 lines
4.5 KiB
C
180 lines
4.5 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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*
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* Copyright (c) 2012 Chelsio Communications, Inc.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include "opt_inet.h"
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/types.h>
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#include <sys/mbuf.h>
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#include <sys/socket.h>
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#include <sys/socketvar.h>
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#include <sys/sockopt.h>
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#include <net/if.h>
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#include <net/if_var.h>
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#include <net/route.h>
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#include <netinet/in.h>
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#include <netinet/in_pcb.h>
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#include <netinet/tcp.h>
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#include <netinet/tcp_offload.h>
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#define TCPOUTFLAGS
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#include <netinet/tcp_fsm.h>
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#include <netinet/tcp_var.h>
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#include <netinet/toecore.h>
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int registered_toedevs;
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/*
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* Provide an opportunity for a TOE driver to offload.
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*/
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int
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tcp_offload_connect(struct socket *so, struct sockaddr *nam)
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{
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struct ifnet *ifp;
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struct toedev *tod;
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struct rtentry *rt;
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int error = EOPNOTSUPP;
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INP_WLOCK_ASSERT(sotoinpcb(so));
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KASSERT(nam->sa_family == AF_INET || nam->sa_family == AF_INET6,
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("%s: called with sa_family %d", __func__, nam->sa_family));
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if (registered_toedevs == 0)
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return (error);
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rt = rtalloc1(nam, 0, 0);
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if (rt)
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RT_UNLOCK(rt);
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else
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return (EHOSTUNREACH);
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ifp = rt->rt_ifp;
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if (nam->sa_family == AF_INET && !(ifp->if_capenable & IFCAP_TOE4))
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goto done;
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if (nam->sa_family == AF_INET6 && !(ifp->if_capenable & IFCAP_TOE6))
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goto done;
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tod = TOEDEV(ifp);
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if (tod != NULL)
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error = tod->tod_connect(tod, so, rt, nam);
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done:
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RTFREE(rt);
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return (error);
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}
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void
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tcp_offload_listen_start(struct tcpcb *tp)
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{
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INP_WLOCK_ASSERT(tp->t_inpcb);
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EVENTHANDLER_INVOKE(tcp_offload_listen_start, tp);
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}
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void
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tcp_offload_listen_stop(struct tcpcb *tp)
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{
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INP_WLOCK_ASSERT(tp->t_inpcb);
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EVENTHANDLER_INVOKE(tcp_offload_listen_stop, tp);
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}
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void
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tcp_offload_input(struct tcpcb *tp, struct mbuf *m)
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{
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struct toedev *tod = tp->tod;
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KASSERT(tod != NULL, ("%s: tp->tod is NULL, tp %p", __func__, tp));
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INP_WLOCK_ASSERT(tp->t_inpcb);
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tod->tod_input(tod, tp, m);
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}
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int
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tcp_offload_output(struct tcpcb *tp)
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{
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struct toedev *tod = tp->tod;
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int error, flags;
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KASSERT(tod != NULL, ("%s: tp->tod is NULL, tp %p", __func__, tp));
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INP_WLOCK_ASSERT(tp->t_inpcb);
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flags = tcp_outflags[tp->t_state];
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if (flags & TH_RST) {
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/* XXX: avoid repeated calls like we do for FIN */
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error = tod->tod_send_rst(tod, tp);
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} else if ((flags & TH_FIN || tp->t_flags & TF_NEEDFIN) &&
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(tp->t_flags & TF_SENTFIN) == 0) {
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error = tod->tod_send_fin(tod, tp);
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if (error == 0)
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tp->t_flags |= TF_SENTFIN;
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} else
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error = tod->tod_output(tod, tp);
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return (error);
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}
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void
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tcp_offload_rcvd(struct tcpcb *tp)
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{
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struct toedev *tod = tp->tod;
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KASSERT(tod != NULL, ("%s: tp->tod is NULL, tp %p", __func__, tp));
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INP_WLOCK_ASSERT(tp->t_inpcb);
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tod->tod_rcvd(tod, tp);
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}
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void
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tcp_offload_ctloutput(struct tcpcb *tp, int sopt_dir, int sopt_name)
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{
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struct toedev *tod = tp->tod;
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KASSERT(tod != NULL, ("%s: tp->tod is NULL, tp %p", __func__, tp));
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INP_WLOCK_ASSERT(tp->t_inpcb);
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tod->tod_ctloutput(tod, tp, sopt_dir, sopt_name);
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}
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void
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tcp_offload_detach(struct tcpcb *tp)
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{
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struct toedev *tod = tp->tod;
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KASSERT(tod != NULL, ("%s: tp->tod is NULL, tp %p", __func__, tp));
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INP_WLOCK_ASSERT(tp->t_inpcb);
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tod->tod_pcb_detach(tod, tp);
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}
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