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 34 /* 35 * Copyright (c) 2004 Jeffrey M. Hsu. All rights reserved. 36 * 37 * License terms: all terms for the DragonFly license above plus the following: 38 * 39 * 4. All advertising materials mentioning features or use of this software 40 * must display the following acknowledgement: 41 * 42 * This product includes software developed by Jeffrey M. Hsu 43 * for the DragonFly Project. 44 * 45 * This requirement may be waived with permission from Jeffrey Hsu. 46 * This requirement will sunset and may be removed on July 8 2005, 47 * after which the standard DragonFly license (as shown above) will 48 * apply. 49 */ 50 51 /* 52 * Copyright (c) 1980, 1986, 1989, 1993 53 * The Regents of the University of California. All rights reserved. 54 * 55 * Redistribution and use in source and binary forms, with or without 56 * modification, are permitted provided that the following conditions 57 * are met: 58 * 1. Redistributions of source code must retain the above copyright 59 * notice, this list of conditions and the following disclaimer. 60 * 2. Redistributions in binary form must reproduce the above copyright 61 * notice, this list of conditions and the following disclaimer in the 62 * documentation and/or other materials provided with the distribution. 63 * 3. All advertising materials mentioning features or use of this software 64 * must display the following acknowledgement: 65 * This product includes software developed by the University of 66 * California, Berkeley and its contributors. 67 * 4. Neither the name of the University nor the names of its contributors 68 * may be used to endorse or promote products derived from this software 69 * without specific prior written permission. 70 * 71 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 72 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 73 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 74 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 75 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 76 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 77 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 78 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 79 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 80 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 81 * SUCH DAMAGE. 82 * 83 * @(#)netisr.h 8.1 (Berkeley) 6/10/93 84 * $FreeBSD: src/sys/net/netisr.h,v 1.21.2.5 2002/02/09 23:02:39 luigi Exp $ 85 * $DragonFly: src/sys/net/netisr.h,v 1.21 2005/01/19 17:30:52 dillon Exp $ 86 */ 87 88 #ifndef _NET_NETISR_H_ 89 #define _NET_NETISR_H_ 90 91 #include <sys/msgport.h> 92 93 /* 94 * The networking code runs off software interrupts. 95 * 96 * You can switch into the network by doing splnet() and return by splx(). 97 * The software interrupt level for the network is higher than the software 98 * level for the clock (so you can enter the network in routines called 99 * at timeout time). 100 */ 101 102 /* 103 * Each ``pup-level-1'' input queue has a bit in a ``netisr'' status 104 * word which is used to de-multiplex a single software 105 * interrupt used for scheduling the network code to calls 106 * on the lowest level routine of each protocol. 107 */ 108 #define NETISR_RESERVED0 0 /* cannot be used */ 109 #define NETISR_POLL 1 /* polling callback */ 110 #define NETISR_IP 2 /* same as AF_INET */ 111 #define NETISR_NS 6 /* same as AF_NS */ 112 #define NETISR_AARP 15 /* Appletalk ARP */ 113 #define NETISR_ATALK2 16 /* Appletalk phase 2 */ 114 #define NETISR_ATALK1 17 /* Appletalk phase 1 */ 115 #define NETISR_ARP 18 /* same as AF_LINK */ 116 #define NETISR_IPX 23 /* same as AF_IPX */ 117 #define NETISR_USB 25 /* USB soft interrupt */ 118 #define NETISR_PPP 27 /* PPP soft interrupt */ 119 #define NETISR_IPV6 28 /* same as AF_INET6 */ 120 #define NETISR_NATM 29 /* same as AF_NATM */ 121 #define NETISR_NETGRAPH 30 /* same as AF_NETGRAPH */ 122 #define NETISR_POLLMORE 31 /* check if we need more polling */ 123 124 #define NETISR_MAX 32 125 126 TAILQ_HEAD(notifymsglist, netmsg_so_notify); 127 128 #ifdef _KERNEL 129 130 #include <sys/protosw.h> 131 132 struct netmsg; 133 134 typedef int (*netisr_fn_t)(struct netmsg *); 135 typedef boolean_t (*msg_predicate_fn_t)(struct netmsg *); 136 137 /* 138 * Base class. All net messages must start with the same fields. 139 */ 140 struct netmsg { 141 struct lwkt_msg nm_lmsg; 142 }; 143 144 struct netmsg_packet { 145 struct lwkt_msg nm_lmsg; 146 struct mbuf *nm_packet; 147 }; 148 149 struct netmsg_pr_ctloutput { 150 struct lwkt_msg nm_lmsg; 151 int (*nm_prfn) (struct socket *, struct sockopt *); 152 struct socket *nm_so; 153 struct sockopt *nm_sopt; 154 }; 155 156 struct netmsg_pr_timeout { 157 struct lwkt_msg nm_lmsg; 158 int (*nm_prfn) (void); 159 }; 160 161 struct netmsg_so_notify { 162 struct lwkt_msg nm_lmsg; 163 msg_predicate_fn_t nm_predicate; 164 struct socket *nm_so; 165 int nm_etype; /* receive or send event */ 166 TAILQ_ENTRY(netmsg_so_notify) nm_list; 167 }; 168 169 #define NM_REVENT 0x1 /* event on receive buffer */ 170 #define NM_SEVENT 0x2 /* event on send buffer */ 171 172 /* 173 * for dispatching pr_ functions, 174 * until they can be converted to message-passing 175 */ 176 int netmsg_pru_abort(lwkt_msg_t); 177 int netmsg_pru_accept(lwkt_msg_t); 178 int netmsg_pru_attach(lwkt_msg_t); 179 int netmsg_pru_bind(lwkt_msg_t); 180 int netmsg_pru_connect(lwkt_msg_t); 181 int netmsg_pru_connect2(lwkt_msg_t); 182 int netmsg_pru_control(lwkt_msg_t); 183 int netmsg_pru_detach(lwkt_msg_t); 184 int netmsg_pru_disconnect(lwkt_msg_t); 185 int netmsg_pru_listen(lwkt_msg_t); 186 int netmsg_pru_peeraddr(lwkt_msg_t); 187 int netmsg_pru_rcvd(lwkt_msg_t); 188 int netmsg_pru_rcvoob(lwkt_msg_t); 189 int netmsg_pru_send(lwkt_msg_t); 190 int netmsg_pru_sense(lwkt_msg_t); 191 int netmsg_pru_shutdown(lwkt_msg_t); 192 int netmsg_pru_sockaddr(lwkt_msg_t); 193 194 int netmsg_pru_sopoll(lwkt_msg_t); 195 196 int netmsg_pr_ctloutput(lwkt_msg_t); 197 int netmsg_pr_timeout(lwkt_msg_t); 198 199 int netmsg_so_notify(lwkt_msg_t); 200 int netmsg_so_notify_abort(lwkt_msg_t); 201 202 typedef lwkt_port_t (*lwkt_portfn_t)(struct mbuf **); 203 204 struct netisr { 205 lwkt_port ni_port; /* must be first */ 206 lwkt_portfn_t ni_mport; 207 netisr_fn_t ni_handler; 208 struct netmsg ni_netmsg; /* for sched_netisr() (no-data) */ 209 }; 210 211 extern lwkt_port netisr_afree_rport; 212 213 lwkt_port_t cpu0_portfn(struct mbuf **mptr); 214 void netisr_dispatch(int, struct mbuf *); 215 int netisr_queue(int, struct mbuf *); 216 void netisr_register(int, lwkt_portfn_t, netisr_fn_t); 217 int netisr_unregister(int); 218 void netmsg_service_port_init(lwkt_port_t); 219 void netmsg_service_loop(void *arg); 220 void netmsg_service_sync(void); 221 void schednetisr(int); 222 223 #endif /* KERNEL */ 224 225 #endif /* _NET_NETISR_H_ */ 226