Use vm_page_hold() instead of vm_page_wire() for exec's mapping of the first
[dragonfly.git] / sys / net / netisr.h
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1/*
2 * Copyright (c) 1980, 1986, 1989, 1993
3 * The Regents of the University of California. 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
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgement:
15 * This product includes software developed by the University of
16 * California, Berkeley and its contributors.
17 * 4. Neither the name of the University nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
32 *
33 * @(#)netisr.h 8.1 (Berkeley) 6/10/93
34 * $FreeBSD: src/sys/net/netisr.h,v 1.21.2.5 2002/02/09 23:02:39 luigi Exp $
b6e58eb0 35 * $DragonFly: src/sys/net/netisr.h,v 1.14 2004/04/10 09:35:34 hsu Exp $
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36 */
37
38#ifndef _NET_NETISR_H_
39#define _NET_NETISR_H_
40
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41#include <sys/msgport.h>
42
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43/*
44 * The networking code runs off software interrupts.
45 *
46 * You can switch into the network by doing splnet() and return by splx().
47 * The software interrupt level for the network is higher than the software
48 * level for the clock (so you can enter the network in routines called
49 * at timeout time).
50 */
51
52/*
53 * Each ``pup-level-1'' input queue has a bit in a ``netisr'' status
54 * word which is used to de-multiplex a single software
55 * interrupt used for scheduling the network code to calls
56 * on the lowest level routine of each protocol.
57 */
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58#define NETISR_RESERVED0 0 /* cannot be used */
59#define NETISR_POLL 1 /* polling callback */
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60#define NETISR_IP 2 /* same as AF_INET */
61#define NETISR_NS 6 /* same as AF_NS */
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62#define NETISR_AARP 15 /* Appletalk ARP */
63#define NETISR_ATALK2 16 /* Appletalk phase 2 */
64#define NETISR_ATALK1 17 /* Appletalk phase 1 */
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65#define NETISR_ARP 18 /* same as AF_LINK */
66#define NETISR_IPX 23 /* same as AF_IPX */
8bde602d 67#define NETISR_USB 25 /* USB soft interrupt */
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68#define NETISR_PPP 27 /* PPP soft interrupt */
69#define NETISR_IPV6 28 /* same as AF_INET6 */
70#define NETISR_NATM 29 /* same as AF_NATM */
71#define NETISR_NETGRAPH 30 /* same as AF_NETGRAPH */
72#define NETISR_POLLMORE 31 /* check if we need more polling */
73
8bde602d 74#define NETISR_MAX 32
ef0fdad1 75
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76TAILQ_HEAD(notifymsglist, netmsg_so_notify);
77
984263bc 78#ifdef _KERNEL
984263bc 79
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80#include <sys/protosw.h>
81
82struct netmsg;
83
a80cf23b 84typedef void (*netisr_fn_t)(struct netmsg *);
c1d0003c 85typedef boolean_t (*msg_predicate_fn_t)(struct netmsg *);
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86
87/*
88 * Base class. All net messages must start with the same fields.
89 */
90struct netmsg {
91 struct lwkt_msg nm_lmsg;
92 netisr_fn_t nm_handler;
93};
94
95struct netmsg_packet {
96 struct lwkt_msg nm_lmsg;
97 netisr_fn_t nm_handler;
98 struct mbuf *nm_packet;
99};
100
101struct netmsg_pr_ctloutput {
102 struct lwkt_msg nm_lmsg;
103 netisr_fn_t nm_handler;
104 int (*nm_prfn) (struct socket *, struct sockopt *);
105 struct socket *nm_so;
106 struct sockopt *nm_sopt;
107};
108
109struct netmsg_pr_timeout {
110 struct lwkt_msg nm_lmsg;
111 netisr_fn_t nm_handler;
112 void (*nm_prfn) (void);
113};
114
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115struct netmsg_so_notify {
116 struct lwkt_msg nm_lmsg;
117 netisr_fn_t nm_handler;
118 msg_predicate_fn_t nm_predicate;
119 struct socket *nm_so;
120 int nm_etype; /* receive or send event */
121 TAILQ_ENTRY(netmsg_so_notify) nm_list;
122};
123
124#define NM_REVENT 0x1 /* event on receive buffer */
125#define NM_SEVENT 0x2 /* event on send buffer */
126
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127/*
128 * for dispatching pr_ functions,
129 * until they can be converted to message-passing
130 */
a80cf23b 131void netmsg_pr_dispatcher(struct netmsg *);
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132
133#define CMD_NETMSG_NEWPKT (MSG_CMD_NETMSG | 0x0001)
134#define CMD_NETMSG_POLL (MSG_CMD_NETMSG | 0x0002)
135
136#define CMD_NETMSG_PRU_ABORT (MSG_CMD_NETMSG | 0x0003)
137#define CMD_NETMSG_PRU_ACCEPT (MSG_CMD_NETMSG | 0x0004)
138#define CMD_NETMSG_PRU_ATTACH (MSG_CMD_NETMSG | 0x0005)
139#define CMD_NETMSG_PRU_BIND (MSG_CMD_NETMSG | 0x0006)
140#define CMD_NETMSG_PRU_CONNECT (MSG_CMD_NETMSG | 0x0007)
141#define CMD_NETMSG_PRU_CONNECT2 (MSG_CMD_NETMSG | 0x0008)
142#define CMD_NETMSG_PRU_CONTROL (MSG_CMD_NETMSG | 0x0009)
143#define CMD_NETMSG_PRU_DETACH (MSG_CMD_NETMSG | 0x000a)
144#define CMD_NETMSG_PRU_DISCONNECT (MSG_CMD_NETMSG | 0x000b)
145#define CMD_NETMSG_PRU_LISTEN (MSG_CMD_NETMSG | 0x000c)
146#define CMD_NETMSG_PRU_PEERADDR (MSG_CMD_NETMSG | 0x000d)
147#define CMD_NETMSG_PRU_RCVD (MSG_CMD_NETMSG | 0x000e)
148#define CMD_NETMSG_PRU_RCVOOB (MSG_CMD_NETMSG | 0x000f)
149#define CMD_NETMSG_PRU_SEND (MSG_CMD_NETMSG | 0x0010)
150#define CMD_NETMSG_PRU_SENSE (MSG_CMD_NETMSG | 0x0011)
151#define CMD_NETMSG_PRU_SHUTDOWN (MSG_CMD_NETMSG | 0x0012)
152#define CMD_NETMSG_PRU_SOCKADDR (MSG_CMD_NETMSG | 0x0013)
153#define CMD_NETMSG_PRU_SOSEND (MSG_CMD_NETMSG | 0x0014)
154#define CMD_NETMSG_PRU_SORECEIVE (MSG_CMD_NETMSG | 0x0015)
155#define CMD_NETMSG_PRU_SOPOLL (MSG_CMD_NETMSG | 0x0016)
156
157#define CMD_NETMSG_PR_CTLOUTPUT (MSG_CMD_NETMSG | 0x0017)
158#define CMD_NETMSG_PR_TIMEOUT (MSG_CMD_NETMSG | 0x0018)
ef0fdad1 159
0ddb6032 160#define CMD_NETMSG_ONCPU (MSG_CMD_NETMSG | 0x0019)
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161#define CMD_NETMSG_NOTIFY (MSG_CMD_NETMSG | 0x0020)
162
163void msg_notify_handler(struct netmsg *);
0ddb6032 164
bf82f9b7 165typedef lwkt_port_t (*lwkt_portfn_t)(struct mbuf *);
8bde602d 166
8bde602d 167struct netisr {
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168 lwkt_port ni_port; /* must be first */
169 lwkt_portfn_t ni_mport;
8bde602d 170 netisr_fn_t ni_handler;
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171};
172
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173extern lwkt_port netisr_afree_rport;
174
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175lwkt_port_t cpu0_portfn(struct mbuf *m);
176void netisr_dispatch(int, struct mbuf *);
177int netisr_queue(int, struct mbuf *);
178void netisr_register(int, lwkt_portfn_t, netisr_fn_t);
179int netisr_unregister(int);
180void netmsg_service_loop(void *arg);
181void schednetisr(int);
984263bc 182
9eeaa8a9 183#endif /* KERNEL */
984263bc 184
bf82f9b7 185#endif /* _NET_NETISR_H_ */