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) 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 $ 68 * $DragonFly: src/sys/net/netisr.h,v 1.25 2007/03/04 18:51:59 swildner Exp $ 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 */ 89 #define NETISR_RESERVED0 0 /* cannot be used */ 90 #define NETISR_POLL 1 /* polling callback */ 91 #define NETISR_IP 2 /* same as AF_INET */ 92 #define NETISR_NS 6 /* same as AF_NS */ 93 #define NETISR_AARP 15 /* Appletalk ARP */ 94 #define NETISR_ATALK2 16 /* Appletalk phase 2 */ 95 #define NETISR_ATALK1 17 /* Appletalk phase 1 */ 96 #define NETISR_ARP 18 /* same as AF_LINK */ 97 #define NETISR_IPX 23 /* same as AF_IPX */ 98 #define NETISR_USB 25 /* USB soft interrupt */ 99 #define NETISR_PPP 27 /* PPP soft interrupt */ 100 #define NETISR_IPV6 28 /* same as AF_INET6 */ 101 #define NETISR_NATM 29 /* same as AF_NATM */ 102 #define NETISR_NETGRAPH 30 /* same as AF_NETGRAPH */ 103 #define NETISR_POLLMORE 31 /* check if we need more polling */ 104 105 #define NETISR_MAX 32 106 107 #if defined(_KERNEL) || defined(_KERNEL_STRUCTURES) 108 109 #ifndef _SYS_TYPES_H_ 110 #include <sys/types.h> 111 #endif 112 #ifndef _SYS_QUEUE_H_ 113 #include <sys/queue.h> 114 #endif 115 #ifndef _SYS_PROTOSW_H_ 116 #include <sys/protosw.h> 117 #endif 118 #ifndef _SYS_MSGPORT_H_ 119 #include <sys/msgport.h> 120 #endif 121 122 TAILQ_HEAD(notifymsglist, netmsg_so_notify); 123 124 struct netmsg; 125 126 typedef int (*netisr_fn_t)(struct netmsg *); 127 typedef __boolean_t (*msg_predicate_fn_t)(struct netmsg *); 128 129 /* 130 * Base class. All net messages must start with the same fields. 131 */ 132 struct netmsg { 133 struct lwkt_msg nm_lmsg; 134 }; 135 136 struct netmsg_packet { 137 struct lwkt_msg nm_lmsg; 138 struct mbuf *nm_packet; 139 }; 140 141 struct netmsg_pr_ctloutput { 142 struct lwkt_msg nm_lmsg; 143 int (*nm_prfn) (struct socket *, struct sockopt *); 144 struct socket *nm_so; 145 struct sockopt *nm_sopt; 146 }; 147 148 struct netmsg_pr_timeout { 149 struct lwkt_msg nm_lmsg; 150 int (*nm_prfn) (void); 151 }; 152 153 struct netmsg_so_notify { 154 struct lwkt_msg nm_lmsg; 155 msg_predicate_fn_t nm_predicate; 156 struct socket *nm_so; 157 int nm_fflags; /* flags e.g. FNONBLOCK */ 158 int nm_etype; /* receive or send event */ 159 TAILQ_ENTRY(netmsg_so_notify) nm_list; 160 }; 161 162 #define NM_REVENT 0x1 /* event on receive buffer */ 163 #define NM_SEVENT 0x2 /* event on send buffer */ 164 165 #endif 166 167 #ifdef _KERNEL 168 169 /* 170 * for dispatching pr_ functions, 171 * until they can be converted to message-passing 172 */ 173 int netmsg_pru_abort(lwkt_msg_t); 174 int netmsg_pru_accept(lwkt_msg_t); 175 int netmsg_pru_attach(lwkt_msg_t); 176 int netmsg_pru_bind(lwkt_msg_t); 177 int netmsg_pru_connect(lwkt_msg_t); 178 int netmsg_pru_connect2(lwkt_msg_t); 179 int netmsg_pru_control(lwkt_msg_t); 180 int netmsg_pru_detach(lwkt_msg_t); 181 int netmsg_pru_disconnect(lwkt_msg_t); 182 int netmsg_pru_listen(lwkt_msg_t); 183 int netmsg_pru_peeraddr(lwkt_msg_t); 184 int netmsg_pru_rcvd(lwkt_msg_t); 185 int netmsg_pru_rcvoob(lwkt_msg_t); 186 int netmsg_pru_send(lwkt_msg_t); 187 int netmsg_pru_sense(lwkt_msg_t); 188 int netmsg_pru_shutdown(lwkt_msg_t); 189 int netmsg_pru_sockaddr(lwkt_msg_t); 190 191 int netmsg_pru_sopoll(lwkt_msg_t); 192 193 int netmsg_pr_ctloutput(lwkt_msg_t); 194 int netmsg_pr_timeout(lwkt_msg_t); 195 196 int netmsg_so_notify(lwkt_msg_t); 197 int netmsg_so_notify_abort(lwkt_msg_t); 198 199 #endif 200 201 #if defined(_KERNEL) || defined(_KERNEL_STRUCTURES) 202 203 typedef lwkt_port_t (*lwkt_portfn_t)(struct mbuf **); 204 205 struct netisr { 206 lwkt_port ni_port; /* must be first */ 207 lwkt_portfn_t ni_mport; 208 netisr_fn_t ni_handler; 209 struct netmsg ni_netmsg; /* for sched_netisr() (no-data) */ 210 }; 211 212 #endif 213 214 #ifdef _KERNEL 215 216 extern lwkt_port netisr_afree_rport; 217 218 lwkt_port_t cpu0_portfn(struct mbuf **mptr); 219 lwkt_port_t cpu_portfn(int cpu); 220 void netisr_dispatch(int, struct mbuf *); 221 int netisr_queue(int, struct mbuf *); 222 void netisr_register(int, lwkt_portfn_t, netisr_fn_t); 223 int netisr_unregister(int); 224 void netmsg_service_port_init(lwkt_port_t); 225 void netmsg_service_loop(void *arg); 226 void netmsg_service_sync(void); 227 void schednetisr(int); 228 229 #endif /* _KERNEL */ 230 231 #endif /* _NET_NETISR_H_ */ 232