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 1.38 2008/10/27 02:56:30 sephe 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_IP 2 /* same as AF_INET */ 91 #define NETISR_NS 6 /* same as AF_NS */ 92 #define NETISR_AARP 15 /* Appletalk ARP */ 93 #define NETISR_ATALK2 16 /* Appletalk phase 2 */ 94 #define NETISR_ATALK1 17 /* Appletalk phase 1 */ 95 #define NETISR_ARP 18 /* same as AF_LINK */ 96 #define NETISR_MPLS 21 /* MPLS */ 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_BLUETOOTH 31 104 105 #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 #ifndef _NET_NETMSG_H_ 122 #include <net/netmsg.h> 123 #endif 124 125 TAILQ_HEAD(notifymsglist, netmsg_so_notify); 126 127 typedef __boolean_t (*msg_predicate_fn_t)(struct netmsg *); 128 129 /* 130 * Base class. All net messages must start with the same fields. 131 */ 132 133 struct netmsg_packet { 134 struct netmsg nm_netmsg; 135 struct mbuf *nm_packet; 136 }; 137 138 struct netmsg_pr_timeout { 139 struct netmsg nm_netmsg; 140 int (*nm_prfn) (void); 141 }; 142 143 struct netmsg_so_notify { 144 struct netmsg nm_netmsg; 145 msg_predicate_fn_t nm_predicate; 146 struct socket *nm_so; 147 int nm_fflags; /* flags e.g. FNONBLOCK */ 148 int nm_etype; /* receive or send event */ 149 TAILQ_ENTRY(netmsg_so_notify) nm_list; 150 }; 151 152 struct netmsg_so_notify_abort { 153 struct netmsg nm_netmsg; 154 struct netmsg_so_notify *nm_notifymsg; 155 }; 156 157 #define NM_REVENT 0x1 /* event on receive buffer */ 158 #define NM_SEVENT 0x2 /* event on send buffer */ 159 160 #endif 161 162 #ifdef _KERNEL 163 164 /* 165 * for dispatching pr_ functions, 166 * until they can be converted to message-passing 167 */ 168 void netmsg_pru_abort(netmsg_t); 169 void netmsg_pru_accept(netmsg_t); 170 void netmsg_pru_attach(netmsg_t); 171 void netmsg_pru_bind(netmsg_t); 172 void netmsg_pru_connect(netmsg_t); 173 void netmsg_pru_connect2(netmsg_t); 174 void netmsg_pru_control(netmsg_t); 175 void netmsg_pru_detach(netmsg_t); 176 void netmsg_pru_disconnect(netmsg_t); 177 void netmsg_pru_listen(netmsg_t); 178 void netmsg_pru_peeraddr(netmsg_t); 179 void netmsg_pru_rcvd(netmsg_t); 180 void netmsg_pru_rcvoob(netmsg_t); 181 void netmsg_pru_send(netmsg_t); 182 void netmsg_pru_sense(netmsg_t); 183 void netmsg_pru_shutdown(netmsg_t); 184 void netmsg_pru_sockaddr(netmsg_t); 185 186 void netmsg_pru_sopoll(netmsg_t); 187 void netmsg_pru_ctloutput(netmsg_t); 188 void netmsg_pru_ctlinput(netmsg_t); 189 190 void netmsg_pr_timeout(netmsg_t); 191 192 void netmsg_so_notify(netmsg_t); 193 void netmsg_so_notify_abort(netmsg_t); 194 void netmsg_so_notify_doabort(lwkt_msg_t); 195 196 #endif 197 198 #if defined(_KERNEL) || defined(_KERNEL_STRUCTURES) 199 200 struct pktinfo { 201 int pi_netisr; /* netisr index, e.g. NETISR_IP */ 202 uint32_t pi_flags; /* PKTINFO_FLAG_ */ 203 int pi_l3proto; /* layer3 protocol number */ 204 }; 205 206 #define PKTINFO_FLAG_FRAG 0x1 207 208 typedef lwkt_port_t (*pkt_portfn_t)(struct mbuf **); 209 typedef lwkt_port_t (*pktinfo_portfn_t)(const struct pktinfo *, struct mbuf *); 210 211 struct netisr { 212 lwkt_port ni_port; /* must be first */ 213 pkt_portfn_t ni_mport; 214 pktinfo_portfn_t ni_mport_pktinfo; 215 netisr_fn_t ni_handler; 216 struct netmsg ni_netmsg; /* for sched_netisr() (no-data) */ 217 uint32_t ni_flags; /* NETISR_FLAG_ */ 218 }; 219 220 #define NETISR_FLAG_NOTMPSAFE 0x0 /* ni_handler is not MPSAFE */ 221 #define NETISR_FLAG_MPSAFE 0x1 /* ni_handler is MPSAFE */ 222 223 #endif 224 225 #ifdef _KERNEL 226 227 #define NETMSG_SERVICE_ADAPTIVE 1 228 #define NETMSG_SERVICE_MPSAFE 2 229 230 extern lwkt_port netisr_adone_rport; 231 extern lwkt_port netisr_afree_rport; 232 extern lwkt_port netisr_apanic_rport; 233 234 lwkt_port_t cpu0_portfn(struct mbuf **mptr); 235 lwkt_port_t cpu_portfn(int cpu); 236 lwkt_port_t pktinfo_portfn_cpu0(const struct pktinfo *, struct mbuf *); 237 lwkt_port_t pktinfo_portfn_notsupp(const struct pktinfo *, struct mbuf *); 238 lwkt_port_t cur_netport(void); 239 240 lwkt_port_t netisr_find_port(int, struct mbuf **); 241 lwkt_port_t netisr_find_pktinfo_port(const struct pktinfo *, struct mbuf *); 242 void netisr_dispatch(int, struct mbuf *); 243 void netisr_run(int, struct mbuf *); 244 int netisr_queue(int, struct mbuf *); 245 void netisr_register(int, pkt_portfn_t, pktinfo_portfn_t, 246 netisr_fn_t, uint32_t); 247 int netisr_unregister(int); 248 249 void netmsg_service_port_init(lwkt_port_t); 250 void netmsg_service_loop(void *arg); 251 int netmsg_service(struct netmsg *, int, int); 252 void netmsg_service_sync(void); 253 void schednetisr(int); 254 255 #define curnetport cur_netport() 256 257 #endif /* _KERNEL */ 258 259 #endif /* _NET_NETISR_H_ */ 260