| 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 1.27 2007/06/16 15:27:27 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_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 | #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_ctloutput { |
| 139 | struct netmsg nm_netmsg; |
| 140 | int (*nm_prfn) (struct socket *, struct sockopt *); |
| 141 | struct socket *nm_so; |
| 142 | struct sockopt *nm_sopt; |
| 143 | }; |
| 144 | |
| 145 | struct netmsg_pr_timeout { |
| 146 | struct netmsg nm_netmsg; |
| 147 | int (*nm_prfn) (void); |
| 148 | }; |
| 149 | |
| 150 | struct netmsg_so_notify { |
| 151 | struct netmsg nm_netmsg; |
| 152 | msg_predicate_fn_t nm_predicate; |
| 153 | struct socket *nm_so; |
| 154 | int nm_fflags; /* flags e.g. FNONBLOCK */ |
| 155 | int nm_etype; /* receive or send event */ |
| 156 | TAILQ_ENTRY(netmsg_so_notify) nm_list; |
| 157 | }; |
| 158 | |
| 159 | struct netmsg_so_notify_abort { |
| 160 | struct netmsg nm_netmsg; |
| 161 | struct netmsg_so_notify *nm_notifymsg; |
| 162 | }; |
| 163 | |
| 164 | #define NM_REVENT 0x1 /* event on receive buffer */ |
| 165 | #define NM_SEVENT 0x2 /* event on send buffer */ |
| 166 | |
| 167 | #endif |
| 168 | |
| 169 | #ifdef _KERNEL |
| 170 | |
| 171 | /* |
| 172 | * for dispatching pr_ functions, |
| 173 | * until they can be converted to message-passing |
| 174 | */ |
| 175 | void netmsg_pru_abort(netmsg_t); |
| 176 | void netmsg_pru_accept(netmsg_t); |
| 177 | void netmsg_pru_attach(netmsg_t); |
| 178 | void netmsg_pru_bind(netmsg_t); |
| 179 | void netmsg_pru_connect(netmsg_t); |
| 180 | void netmsg_pru_connect2(netmsg_t); |
| 181 | void netmsg_pru_control(netmsg_t); |
| 182 | void netmsg_pru_detach(netmsg_t); |
| 183 | void netmsg_pru_disconnect(netmsg_t); |
| 184 | void netmsg_pru_listen(netmsg_t); |
| 185 | void netmsg_pru_peeraddr(netmsg_t); |
| 186 | void netmsg_pru_rcvd(netmsg_t); |
| 187 | void netmsg_pru_rcvoob(netmsg_t); |
| 188 | void netmsg_pru_send(netmsg_t); |
| 189 | void netmsg_pru_sense(netmsg_t); |
| 190 | void netmsg_pru_shutdown(netmsg_t); |
| 191 | void netmsg_pru_sockaddr(netmsg_t); |
| 192 | |
| 193 | void netmsg_pru_sopoll(netmsg_t); |
| 194 | |
| 195 | void netmsg_pr_ctloutput(netmsg_t); |
| 196 | void netmsg_pr_timeout(netmsg_t); |
| 197 | |
| 198 | void netmsg_so_notify(netmsg_t); |
| 199 | void netmsg_so_notify_abort(netmsg_t); |
| 200 | void netmsg_so_notify_doabort(lwkt_msg_t); |
| 201 | |
| 202 | #endif |
| 203 | |
| 204 | #if defined(_KERNEL) || defined(_KERNEL_STRUCTURES) |
| 205 | |
| 206 | typedef lwkt_port_t (*lwkt_portfn_t)(struct mbuf **); |
| 207 | |
| 208 | struct netisr { |
| 209 | lwkt_port ni_port; /* must be first */ |
| 210 | lwkt_portfn_t ni_mport; |
| 211 | netisr_fn_t ni_handler; |
| 212 | struct netmsg ni_netmsg; /* for sched_netisr() (no-data) */ |
| 213 | }; |
| 214 | |
| 215 | #endif |
| 216 | |
| 217 | #ifdef _KERNEL |
| 218 | |
| 219 | extern lwkt_port netisr_afree_rport; |
| 220 | extern lwkt_port netisr_apanic_rport; |
| 221 | |
| 222 | lwkt_port_t cpu0_portfn(struct mbuf **mptr); |
| 223 | lwkt_port_t cpu_portfn(int cpu); |
| 224 | void netisr_dispatch(int, struct mbuf *); |
| 225 | int netisr_queue(int, struct mbuf *); |
| 226 | void netisr_register(int, lwkt_portfn_t, netisr_fn_t); |
| 227 | int netisr_unregister(int); |
| 228 | void netmsg_service_port_init(lwkt_port_t); |
| 229 | void netmsg_service_loop(void *arg); |
| 230 | void netmsg_service_sync(void); |
| 231 | void schednetisr(int); |
| 232 | |
| 233 | #endif /* _KERNEL */ |
| 234 | |
| 235 | #endif /* _NET_NETISR_H_ */ |