HAMMER Utilities: Add the 'pseudofs' directive for commit 57
[dragonfly.git] / sys / net / netisr.h
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1/*
2 * Copyright (c) 2004 Jeffrey M. Hsu. All rights reserved.
3 * Copyright (c) 2004 The DragonFly Project. All rights reserved.
4 *
5 * This code is derived from software contributed to The DragonFly Project
6 * by Jeffrey M. Hsu.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 3. Neither the name of The DragonFly Project nor the names of its
17 * contributors may be used to endorse or promote products derived
18 * from this software without specific, prior written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
21 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
22 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
23 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
24 * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
25 * INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING,
26 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
27 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
28 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
29 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
30 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
32 */
33
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34/*
35 * Copyright (c) 1980, 1986, 1989, 1993
36 * The Regents of the University of California. All rights reserved.
37 *
38 * Redistribution and use in source and binary forms, with or without
39 * modification, are permitted provided that the following conditions
40 * are met:
41 * 1. Redistributions of source code must retain the above copyright
42 * notice, this list of conditions and the following disclaimer.
43 * 2. Redistributions in binary form must reproduce the above copyright
44 * notice, this list of conditions and the following disclaimer in the
45 * documentation and/or other materials provided with the distribution.
46 * 3. All advertising materials mentioning features or use of this software
47 * must display the following acknowledgement:
48 * This product includes software developed by the University of
49 * California, Berkeley and its contributors.
50 * 4. Neither the name of the University nor the names of its contributors
51 * may be used to endorse or promote products derived from this software
52 * without specific prior written permission.
53 *
54 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
55 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
56 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
57 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
58 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
59 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
60 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
61 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
62 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
63 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
64 * SUCH DAMAGE.
65 *
66 * @(#)netisr.h 8.1 (Berkeley) 6/10/93
67 * $FreeBSD: src/sys/net/netisr.h,v 1.21.2.5 2002/02/09 23:02:39 luigi Exp $
e71a125f 68 * $DragonFly: src/sys/net/netisr.h,v 1.32 2008/06/17 20:50:11 aggelos Exp $
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69 */
70
71#ifndef _NET_NETISR_H_
72#define _NET_NETISR_H_
73
74/*
75 * The networking code runs off software interrupts.
76 *
77 * You can switch into the network by doing splnet() and return by splx().
78 * The software interrupt level for the network is higher than the software
79 * level for the clock (so you can enter the network in routines called
80 * at timeout time).
81 */
82
83/*
84 * Each ``pup-level-1'' input queue has a bit in a ``netisr'' status
85 * word which is used to de-multiplex a single software
86 * interrupt used for scheduling the network code to calls
87 * on the lowest level routine of each protocol.
88 */
35746821 89#define NETISR_RESERVED0 0 /* cannot be used */
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90#define NETISR_IP 2 /* same as AF_INET */
91#define NETISR_NS 6 /* same as AF_NS */
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92#define NETISR_AARP 15 /* Appletalk ARP */
93#define NETISR_ATALK2 16 /* Appletalk phase 2 */
94#define NETISR_ATALK1 17 /* Appletalk phase 1 */
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95#define NETISR_ARP 18 /* same as AF_LINK */
96#define NETISR_IPX 23 /* same as AF_IPX */
8bde602d 97#define NETISR_USB 25 /* USB soft interrupt */
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98#define NETISR_PPP 27 /* PPP soft interrupt */
99#define NETISR_IPV6 28 /* same as AF_INET6 */
100#define NETISR_NATM 29 /* same as AF_NATM */
101#define NETISR_NETGRAPH 30 /* same as AF_NETGRAPH */
0a9108eb 102#define NETISR_BLUETOOTH 31
984263bc 103
8bde602d 104#define NETISR_MAX 32
ef0fdad1 105
03d6a592 106#if defined(_KERNEL) || defined(_KERNEL_STRUCTURES)
984263bc 107
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108#ifndef _SYS_TYPES_H_
109#include <sys/types.h>
110#endif
111#ifndef _SYS_QUEUE_H_
112#include <sys/queue.h>
113#endif
114#ifndef _SYS_PROTOSW_H_
9eeaa8a9 115#include <sys/protosw.h>
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116#endif
117#ifndef _SYS_MSGPORT_H_
118#include <sys/msgport.h>
119#endif
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120#ifndef _NET_NETMSG_H_
121#include <net/netmsg.h>
122#endif
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123
124TAILQ_HEAD(notifymsglist, netmsg_so_notify);
9eeaa8a9 125
03d6a592 126typedef __boolean_t (*msg_predicate_fn_t)(struct netmsg *);
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127
128/*
129 * Base class. All net messages must start with the same fields.
130 */
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131
132struct netmsg_packet {
4599cf19 133 struct netmsg nm_netmsg;
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134 struct mbuf *nm_packet;
135};
136
9eeaa8a9 137struct netmsg_pr_timeout {
4599cf19 138 struct netmsg nm_netmsg;
b44419cb 139 int (*nm_prfn) (void);
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140};
141
c1d0003c 142struct netmsg_so_notify {
4599cf19 143 struct netmsg nm_netmsg;
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144 msg_predicate_fn_t nm_predicate;
145 struct socket *nm_so;
9ba76b73 146 int nm_fflags; /* flags e.g. FNONBLOCK */
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147 int nm_etype; /* receive or send event */
148 TAILQ_ENTRY(netmsg_so_notify) nm_list;
149};
150
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151struct netmsg_so_notify_abort {
152 struct netmsg nm_netmsg;
153 struct netmsg_so_notify *nm_notifymsg;
154};
155
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156#define NM_REVENT 0x1 /* event on receive buffer */
157#define NM_SEVENT 0x2 /* event on send buffer */
158
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159#endif
160
161#ifdef _KERNEL
162
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163/*
164 * for dispatching pr_ functions,
165 * until they can be converted to message-passing
166 */
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167void netmsg_pru_abort(netmsg_t);
168void netmsg_pru_accept(netmsg_t);
169void netmsg_pru_attach(netmsg_t);
170void netmsg_pru_bind(netmsg_t);
171void netmsg_pru_connect(netmsg_t);
172void netmsg_pru_connect2(netmsg_t);
173void netmsg_pru_control(netmsg_t);
174void netmsg_pru_detach(netmsg_t);
175void netmsg_pru_disconnect(netmsg_t);
176void netmsg_pru_listen(netmsg_t);
177void netmsg_pru_peeraddr(netmsg_t);
178void netmsg_pru_rcvd(netmsg_t);
179void netmsg_pru_rcvoob(netmsg_t);
180void netmsg_pru_send(netmsg_t);
181void netmsg_pru_sense(netmsg_t);
182void netmsg_pru_shutdown(netmsg_t);
183void netmsg_pru_sockaddr(netmsg_t);
184
185void netmsg_pru_sopoll(netmsg_t);
e71a125f 186void netmsg_pru_ctloutput(netmsg_t);
4599cf19 187
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188void netmsg_pr_timeout(netmsg_t);
189
190void netmsg_so_notify(netmsg_t);
191void netmsg_so_notify_abort(netmsg_t);
192void netmsg_so_notify_doabort(lwkt_msg_t);
0ddb6032 193
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194#endif
195
196#if defined(_KERNEL) || defined(_KERNEL_STRUCTURES)
197
b01ae44a 198typedef lwkt_port_t (*lwkt_portfn_t)(struct mbuf **);
8bde602d 199
8bde602d 200struct netisr {
a29576fc 201 lwkt_port ni_port; /* must be first */
bf82f9b7 202 lwkt_portfn_t ni_mport;
8bde602d 203 netisr_fn_t ni_handler;
a29576fc 204 struct netmsg ni_netmsg; /* for sched_netisr() (no-data) */
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205};
206
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207#endif
208
209#ifdef _KERNEL
210
1630efc5 211extern lwkt_port netisr_adone_rport;
3f48f9c5 212extern lwkt_port netisr_afree_rport;
ecd27a4c 213extern lwkt_port netisr_apanic_rport;
3f48f9c5 214
b01ae44a 215lwkt_port_t cpu0_portfn(struct mbuf **mptr);
ecdefdda 216lwkt_port_t cpu_portfn(int cpu);
68b67450 217lwkt_port_t netisr_mport(int, struct mbuf **);
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218void netisr_dispatch(int, struct mbuf *);
219int netisr_queue(int, struct mbuf *);
220void netisr_register(int, lwkt_portfn_t, netisr_fn_t);
221int netisr_unregister(int);
5c703385 222void netmsg_service_port_init(lwkt_port_t);
bf82f9b7 223void netmsg_service_loop(void *arg);
95f8b5ce 224void netmsg_service_loop_mpsafe(void *arg);
5c703385 225void netmsg_service_sync(void);
bf82f9b7 226void schednetisr(int);
984263bc 227
03d6a592 228#endif /* _KERNEL */
984263bc 229
bf82f9b7 230#endif /* _NET_NETISR_H_ */