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tcp_offload.c (194739) tcp_offload.c (195699)
1/*-
2 * Copyright (c) 2007, Chelsio Inc.
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are met:
7 *
8 * 1. Redistributions of source code must retain the above copyright notice,

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21 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
22 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
23 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
24 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
25 * POSSIBILITY OF SUCH DAMAGE.
26 */
27
28#include <sys/cdefs.h>
1/*-
2 * Copyright (c) 2007, Chelsio Inc.
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are met:
7 *
8 * 1. Redistributions of source code must retain the above copyright notice,

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21 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
22 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
23 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
24 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
25 * POSSIBILITY OF SUCH DAMAGE.
26 */
27
28#include <sys/cdefs.h>
29__FBSDID("$FreeBSD: head/sys/netinet/tcp_offload.c 194739 2009-06-23 17:03:45Z bz $");
29__FBSDID("$FreeBSD: head/sys/netinet/tcp_offload.c 195699 2009-07-14 22:48:30Z rwatson $");
30
31#include <sys/param.h>
32#include <sys/systm.h>
33#include <sys/types.h>
34#include <sys/malloc.h>
35#include <sys/kernel.h>
36#include <sys/sysctl.h>
37#include <sys/mbuf.h>

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46
47#include <netinet/in.h>
48#include <netinet/in_systm.h>
49#include <netinet/in_pcb.h>
50#include <netinet/tcp.h>
51#include <netinet/tcp_var.h>
52#include <netinet/tcp_offload.h>
53#include <netinet/toedev.h>
30
31#include <sys/param.h>
32#include <sys/systm.h>
33#include <sys/types.h>
34#include <sys/malloc.h>
35#include <sys/kernel.h>
36#include <sys/sysctl.h>
37#include <sys/mbuf.h>

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46
47#include <netinet/in.h>
48#include <netinet/in_systm.h>
49#include <netinet/in_pcb.h>
50#include <netinet/tcp.h>
51#include <netinet/tcp_var.h>
52#include <netinet/tcp_offload.h>
53#include <netinet/toedev.h>
54#include <netinet/vinet.h>
55
56uint32_t toedev_registration_count;
57
58int
59tcp_offload_connect(struct socket *so, struct sockaddr *nam)
60{
61 struct ifnet *ifp;
62 struct toedev *tdev;

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104/*
105 * This file contains code as a short-term staging area before it is moved in
106 * to sys/netinet/tcp_offload.c
107 */
108
109void
110tcp_offload_twstart(struct tcpcb *tp)
111{
54
55uint32_t toedev_registration_count;
56
57int
58tcp_offload_connect(struct socket *so, struct sockaddr *nam)
59{
60 struct ifnet *ifp;
61 struct toedev *tdev;

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103/*
104 * This file contains code as a short-term staging area before it is moved in
105 * to sys/netinet/tcp_offload.c
106 */
107
108void
109tcp_offload_twstart(struct tcpcb *tp)
110{
112 INIT_VNET_INET(curvnet);
113
114 INP_INFO_WLOCK(&V_tcbinfo);
115 INP_WLOCK(tp->t_inpcb);
116 tcp_twstart(tp);
117 INP_INFO_WUNLOCK(&V_tcbinfo);
118}
119
120struct tcpcb *
121tcp_offload_close(struct tcpcb *tp)
122{
111
112 INP_INFO_WLOCK(&V_tcbinfo);
113 INP_WLOCK(tp->t_inpcb);
114 tcp_twstart(tp);
115 INP_INFO_WUNLOCK(&V_tcbinfo);
116}
117
118struct tcpcb *
119tcp_offload_close(struct tcpcb *tp)
120{
123 INIT_VNET_INET(curvnet);
124
121
125 INP_INFO_WLOCK(&V_tcbinfo);
126 INP_WLOCK(tp->t_inpcb);
127 tp = tcp_close(tp);
128 INP_INFO_WUNLOCK(&V_tcbinfo);
129 if (tp)
130 INP_WUNLOCK(tp->t_inpcb);
131
132 return (tp);
133}
134
135struct tcpcb *
136tcp_offload_drop(struct tcpcb *tp, int error)
137{
122 INP_INFO_WLOCK(&V_tcbinfo);
123 INP_WLOCK(tp->t_inpcb);
124 tp = tcp_close(tp);
125 INP_INFO_WUNLOCK(&V_tcbinfo);
126 if (tp)
127 INP_WUNLOCK(tp->t_inpcb);
128
129 return (tp);
130}
131
132struct tcpcb *
133tcp_offload_drop(struct tcpcb *tp, int error)
134{
138 INIT_VNET_INET(curvnet);
139
135
140 INP_INFO_WLOCK(&V_tcbinfo);
141 INP_WLOCK(tp->t_inpcb);
142 tp = tcp_drop(tp, error);
143 INP_INFO_WUNLOCK(&V_tcbinfo);
144 if (tp)
145 INP_WUNLOCK(tp->t_inpcb);
146
147 return (tp);
148}
149
136 INP_INFO_WLOCK(&V_tcbinfo);
137 INP_WLOCK(tp->t_inpcb);
138 tp = tcp_drop(tp, error);
139 INP_INFO_WUNLOCK(&V_tcbinfo);
140 if (tp)
141 INP_WUNLOCK(tp->t_inpcb);
142
143 return (tp);
144}
145